tag:blogger.com,1999:blog-88553170458656361732024-03-21T00:22:16.374-07:00Dawn in AntarcticaMy Fourth Trip! It's back to Lake Vanda with Tyler, Anne and Ian, plus Devin. Support from Antarctica New Zealand. (Our planned work for this year at Lake Joyce with USAP support has been postponed due to the US government shutdown.)Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.comBlogger128125tag:blogger.com,1999:blog-8855317045865636173.post-82928537238139732042013-12-10T19:41:00.000-08:002014-02-14T19:42:14.607-08:00Day 14 in AntarcticaDecember 10, 2013<br />
Today was sunny all day with 25 knot <a href="http://en.wikipedia.org/wiki/Katabatic_wind">katabatic</a> winds in the afternoon. It was warmer.<br />
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I spent all day on microscopy, photography, and sorting photos. It was a very productive day. <br />
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The quad bike quit starting, and Devin, Anne, and Tyler pushed it back to camp. None of them new what to do to figure out what was wrong. I got ready to help when Ian came back to camp. He has a lot of experience with engines, and once we found the tool kit and pulled the spark plug, we solved the problem: the plug was fouled. A new one fixed the problem. We can add "engine repair" to the list of field skills needed!<br />
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<tr><td class="tr-caption" style="text-align: center;">Our only means of transport besides walking is a quad bike (ATV). We have a sled to help carry gear between the huts/sleeping tents and the science tent and dive hole. It is also good for carrying the drill and other gear around the lake.</td></tr>
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<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com3tag:blogger.com,1999:blog-8855317045865636173.post-68287256875187233302013-12-09T19:32:00.000-08:002014-02-14T19:34:14.126-08:00Day 13 in AntarcticaDecember 9, 2013<br />
Today was mostly sunny and calm, with beautiful snow on the mountains.<br />
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<tr><td class="tr-caption" style="text-align: center;">Mt. Oden with Lake Vanda in the foreground.</td></tr>
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Tyler and Ian dove today, and I handled the rope as usual. The rope pulls for Ian's dive went badly, as in the signals weren't clear. That put me off for most of the day. I don't like doing a poor job on something like handling a diver's line. There was too much slack, and the rope might have gotten caught on something. I need to really concentrate when handling the line. At least it only caused stress and didn't actually put Ian in any danger. <br />
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I did a lot of microscopy work and wandered back to camp along the south shoreline. I was very tired.Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-16604681885633616542013-12-08T19:26:00.000-08:002014-02-14T19:26:44.166-08:00Day 12 in AntarcticaDecember 8, 2013<br />
Happy Birthday, Dad!<br />
There is more snow on the peaks and the Onyx River is really flowing. <br />
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I spent the morning programming in Python to look for trends in our preliminary thermister data. I don't do enough programming to remember all the data reading and processing tips. And without the internet to look them up in an instant, it took me much longer to actually get to the data. I worked on sorting out how to do a Fast Fourier Transform to look for cycles. This was really fitting for today, my dad's birthday, as a key part of his Ph.D. thesis was implementing a FFT technique to understanding nuclear data for cobalt.<br />
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<tr><td class="tr-caption" style="text-align: center;">Helping Tyler prepare for a dive. I'm holding the rope, Ian is checking his air, and Devin is preparing to attach his inflator. Anne is the photographer.</td></tr>
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Tyler dove and collected samples for me to photograph and for Anne to subsample for genomics. Anne and I spent all afternoon on the samples, and Anne worked late into the evening. I'll get an early start tomorrow to use the binocular microscope and let her have it later in the day. <br />
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<tr><td class="tr-caption" style="text-align: center;">Pinnacles from 19 m depth. The scale on the left is in millimeters.</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4DYWbDBviIlHAPxsjKXBZ-v8QYIivFUgxx-aNJGpKoGlXgb6_CuIjXJwaHCPx4Po0VIykR-MsWQ5B1pQHppvujiC8Y4GSysPeycJc9v-o2XgOx92YgOQVKMogG65k0tgS72NMBQ96mfcq/s1600/DSC_0996.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4DYWbDBviIlHAPxsjKXBZ-v8QYIivFUgxx-aNJGpKoGlXgb6_CuIjXJwaHCPx4Po0VIykR-MsWQ5B1pQHppvujiC8Y4GSysPeycJc9v-o2XgOx92YgOQVKMogG65k0tgS72NMBQ96mfcq/s1600/DSC_0996.jpg" height="320" width="257" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Backlit pinnacles look even more dramatic!</td></tr>
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In the afternoon, Ian walked 14 km of the south shoreline with a GPS unit. With 1 m of lake level rise across a shallow slope, there is a lot of new lake surface area. The old surveying benchmark is only 30 cm above lake level now!<br />
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Climate change is real!Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-23704818735945161882013-12-07T19:11:00.000-08:002014-02-14T19:14:31.848-08:00Day 11 in AntarcticaDecember 7, 2013<br />
Snow! We had flurries all afternoon. It was amazingly beautiful. <br />
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We also had an amazing thing happen: The Onyx River started flowing. The Onyx is the largest river on the continent of Antarctica, and it ends in Lake Vanda, right next to our camp. It "usually" remains frozen until late December, but it started flowing on a cold snowy day, early this year. It is true that the sun was shining up valley, so snow and ice were probably melting there.<br />
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<tr><td class="tr-caption" style="text-align: center;">The Onyx River - the largest river in Antarctica. It's really only a babbling brook...</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">The Onyx River flowing into Lake Vanda past our camp and the Vanda huts. The stick in the water is part of a system to measure the river flow.</td></tr>
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In the morning, we cleared out some of our holes in the ice to take video of the lake floor. Ian did his third dive, retrieving the thermisters so we could see if they were working. Anne and I talked about sampling protocols for genomics, lipids, and photographs. Everyone worked on data processing. Devin worked on his DTS data, trying to figure out the best sampling protocol (<a href="http://dawninantarctica.blogspot.com/2013/12/day-5-in-antarctica.html">see day 5</a>). <br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLKZjyUoVW8QxHICujByNPqAIeEH6lBE8f0-4_y2Jtc_NrTpNuM0xoAmxapyxXPKk_eV7otvV3nlT5BOJV0G9Iop1cxVdX08AzBJW7r3rkWnYX9rcqzTfDFhTCLdWNKOM7uKoBJh31YhJC/s1600/DSC_0951.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLKZjyUoVW8QxHICujByNPqAIeEH6lBE8f0-4_y2Jtc_NrTpNuM0xoAmxapyxXPKk_eV7otvV3nlT5BOJV0G9Iop1cxVdX08AzBJW7r3rkWnYX9rcqzTfDFhTCLdWNKOM7uKoBJh31YhJC/s1600/DSC_0951.jpg" height="320" width="212" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Devin, struggling with data next to our diesel heater.</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">Devin, with a deeper understanding a couple of hours later.</td></tr>
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In the afternoon, I worked on the dive tracker some more, doing some careful experiments walking in a square around the science tent. I concluded it is likely working, although the data are not interpretable by me. Without e-mail and with limited satellite phone use, we couldn't contact the students who made it to see if the data made sense. We decided to use it just in case.<br />
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We fell asleep the sound of a gurgling stream, a sound that became very familiar in a pleasant way.Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-45654587182144406442013-12-06T18:49:00.000-08:002014-02-14T18:50:02.543-08:00Day 10 in AntarcticaDecember 6, 2013<br />
Today was cold and windy.<br />
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We drilled more holes and took more video in the morning. In the afternoon, I worked on a dive tracker. The dive tracker was made by a group of students at Hobart College, Tasmania. They are working on using Arduino electronics, accelerometers, a magnetometer, and GPS to track under water autonomous vehicles. They build us one to try on Tyler to see if we can track his dives. The tracker saves the data to an SD card. We tried it out, but didn't understand the data and broke the magnetic switch. I bypassed the switch. I also did some test to see if it was actually working. I didn't come to a conclusion.<br />
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<tr><td class="tr-caption" style="text-align: center;">Me, working on electronics in the dive tracker...</td></tr>
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For dinner, I fixed soup (using leftover pasta water from the night before) and hash browns. They go amazingly well together after only a week in the field. <br />
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<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-60244617835266498052013-12-05T18:41:00.000-08:002014-02-14T18:42:10.069-08:00Day 9 in AntarcticaDecember 5, 2013<br />
We had an almost wind-free night, which made for quiet sleeping. Our tents were flapping.<br />
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Today was Tyler's first dive and Ian's second. Tyler mostly looked around and got used to the new dive gear. Ian deployed an instrument called PAM (Pulse Amplitude Modulated spectrometer) that measures chlorophyll abundance and photosynthetic potential. We left PAM in the lake measuring two spots for most of the month we were at Lake Vanda. <br />
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<tr><td class="tr-caption" style="text-align: center;">Ian and I drilling the first flight of a hole in the ice with Tyler watching. Once we go down a flight. we stop drilling, disconnect the Jiffy drill at the top, add a flight, and do it all again, and again, and again. We get to the lake water in the 4th flight.</td></tr>
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After lunch, we drilled more holes in the ice and took more video. Tyler's new video system is working very well. When we've tried it before, we've had trouble getting the camera to spin properly. However, this time, we have a SeaView camera that lets us see about how far the system is above the lake floor as well as how fast it is spinning. We take video data with GoPro cameras in underwater housings.<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEha6JHjozrYF5DR4mhgfAmO4GZ6PT0ZDDmR9WJNRYrvVoktHIR-B6b_CnzjhwXgZhBvIChPrx1T-hqkdWJ8kJ27yQwd-ReLRkOOpp65r3Y7T3TSa431vlCVGVikTpcRTXkmjMMREy99G_7f/s1600/IMG_9779_2.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEha6JHjozrYF5DR4mhgfAmO4GZ6PT0ZDDmR9WJNRYrvVoktHIR-B6b_CnzjhwXgZhBvIChPrx1T-hqkdWJ8kJ27yQwd-ReLRkOOpp65r3Y7T3TSa431vlCVGVikTpcRTXkmjMMREy99G_7f/s1600/IMG_9779_2.jpg" height="320" width="213" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Tyler and his cameras in the science tent. The grey plastic cylinder is the SeaView camera. The GoPro is on the end of the long PVC pipe looking inward so we get images of all sides of some of the pinnacles. There are two dive lasers attached above the SeaView camera. When they are on, they provide two red spots that are 3 cm apart no matter how far they are from the lake bottom. The ropes keep the GoPro arm pointing downward when we lower it into or pull it out of the hole in the ice and the arm out after it has cleared the bottom of the hole.</td></tr>
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The floor of the lake is covered with pinnacles to depths of about 50 m. <br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDqGoKwHr2XR29S3wxK0JVtWGmujZbsvLFp_x6x3zd03Wz0PPBTmMfp3fVlLqwbw2RTVgdF-KAwHrenHpQDHcAvdhpRWJINtND1PxmPsqz8AfsXXZk56hKwlQ7GF392rIUP_b-gf2_ph2d/s1600/pinnacles.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDqGoKwHr2XR29S3wxK0JVtWGmujZbsvLFp_x6x3zd03Wz0PPBTmMfp3fVlLqwbw2RTVgdF-KAwHrenHpQDHcAvdhpRWJINtND1PxmPsqz8AfsXXZk56hKwlQ7GF392rIUP_b-gf2_ph2d/s1600/pinnacles.jpg" height="178" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Screen shot of the GoPro camera view with the laser spots, the SeaView camera and a bolt at the end of a string with a straw on it to provide a down-indicator.</td></tr>
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<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-7845095247417741042013-12-04T15:23:00.000-08:002014-02-09T09:54:13.088-08:00Day 8 in Antarctica<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBblXfPuxMCH0EM7D8bO7zBrgENfoUsjsfYUm2vRyrHiZklFOYabcfbsMwHtwxLyEh5hKU5d8nW8t7JF3xpg9YqCqHII-UWodKJ8YYpoL957ClZcAO3fehtK0ATRO4Yp9MgVlUUT2Hjbvl/s1600/DSC_0886.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBblXfPuxMCH0EM7D8bO7zBrgENfoUsjsfYUm2vRyrHiZklFOYabcfbsMwHtwxLyEh5hKU5d8nW8t7JF3xpg9YqCqHII-UWodKJ8YYpoL957ClZcAO3fehtK0ATRO4Yp9MgVlUUT2Hjbvl/s1600/DSC_0886.jpg" height="212" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">A birthday message from Vandy, the monster in the lake...</td></tr>
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December 4, 2013<br />
My 47th birthday! I spend all day appreciating the fact that I was actually in Antarctica. After all the shutdown woes, Ian and Antarctica New Zealand had given me the best birthday present possible - four weeks at Lake Vanda.<br />
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I spent the morning on the microscope and cameras working with my first sample, and then helped drill more holes and drop cameras down them in the afternoon with Ian, Tyler and Anne. Devin collected more lake profile data<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0gMwIOi7rFPUoJEmH0lUgFhODJQxmH6nD876vw3L-Dy-9aKscalzkC0pplcL9BdmwX_zO_v3050zqYtb2JIpuTcwAg90x6L_CdXxZMqklGjzhYZ50L9gA6TIL78rlUrjR_6QgiSFcWQas/s1600/DSC_0911.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0gMwIOi7rFPUoJEmH0lUgFhODJQxmH6nD876vw3L-Dy-9aKscalzkC0pplcL9BdmwX_zO_v3050zqYtb2JIpuTcwAg90x6L_CdXxZMqklGjzhYZ50L9gA6TIL78rlUrjR_6QgiSFcWQas/s1600/DSC_0911.jpg" height="212" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The drilling/drop camera party</td></tr>
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We decided that the Christmas cookies really needed to be birthday cookies, so we ate them for my birthday. We did save the candy canes and marshmallow Santas until Christmas (and after).Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-78516054263859343382013-12-03T15:15:00.000-08:002014-02-14T18:25:07.438-08:00Day 7 in Antarctica<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhM61z9-uoNaiciD4iqxbP27xEgTtqhqIG01a79ArORcdfG05Xgk5daP1pMVStxzizMOuE7LCOtBkhUTeScYOIesovUwnhHH2MBHXOzGBsgjlEF5i6CKqylc2uYKeCXFwP8ioleRBwJlyiQ/s1600/DSC_5720.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhM61z9-uoNaiciD4iqxbP27xEgTtqhqIG01a79ArORcdfG05Xgk5daP1pMVStxzizMOuE7LCOtBkhUTeScYOIesovUwnhHH2MBHXOzGBsgjlEF5i6CKqylc2uYKeCXFwP8ioleRBwJlyiQ/s1600/DSC_5720.jpg" height="320" width="288" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">My first sample...</td></tr>
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December 3, 2013<br />
In the morning, Ian, Anne, Tyler and I drilled holes in the ice to measure water chemistry and to lower a camera to look at the microbial mat growing at the bottom of the lake. We had a lot of fun. Ian also did the first dive, with me handling his rope. The divers are tethered by a rope so they can find the hold again. We also used the rope for signaling. One pull meant the diver was fine. Two meant they wanted more line. Three meant pull the line in. Five or more meant there was an emergency and pull in quickly. (We never used this one.) <br />
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Ian deployed two thermisters at 26 m water depth to measure the temperature at the lake bottom and 10 cm off the bottom. This was a test to see what data we might expect for them.<br />
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Ian also brought up the first samples, and they were very interesting. Things are similar to what we saw in 2010, but after three years of thinking about the growth of the pinnacles, I saw much more than before.<br />
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We had a visitor who Devin helped with sampling for black carbon in one of our drill holes over the deepest part of the lake. She left us a bottle of Jameson Irish Whiskey! Also, Scott Base sent out some cookies and candy for Christmas.<br />
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<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-76825346148161389262013-12-02T15:06:00.000-08:002014-02-09T09:53:49.071-08:00Day 6 in Antarctica<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
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<tr><td class="tr-caption" style="text-align: center;">The microscope setup in the spacious science tent. I'm using the binocular scope and the phase contrast scope is on the other side of the table.</td></tr>
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December 2, 2013<br />
I set up the microscopes in the science tent in the morning, and it looks like our photography system will work well this year. Karl (from snow school), Deidre (reporter), and some others came out for a few hours. Karl and Deidre photographed and interviewed Ian and various other things around camp. They filmed Tyler for a profile for Antarctica New Zealand. I send a blog post out with them.<br />
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We also collected water samples for Anne to filter to look at planktonic organisms and Tyler to analyze the sulfur isotopes of sulfate and sulfide. <br />
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Today was the first colder, windier day.Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-56426169844225213922013-12-02T04:22:00.000-08:002013-12-02T04:30:32.971-08:00Out to Lake Vanda<div style="font-family: 'Times New Roman'; font-size: 12px;">
<span style="letter-spacing: 0px;">Anne, Devin and I flew out to Lake Vanda in a US Antarctic Program 212 helicopter.</span><span style="letter-spacing: 0px;"> </span><span style="letter-spacing: 0px;">We flew in a US helo because AntNZ only has one helo this year, and it was busy flying a giant radar over the sea ice to measure its thickness.</span><span style="letter-spacing: 0px;"> </span><span style="letter-spacing: 0px;">The US pilot was happy to fly us to Vanda; it’s his first season, and he hadn’t been out there before.</span><span style="letter-spacing: 0px;"> </span><span style="letter-spacing: 0px;">Thus, we did a bit of sight seeing over the Asgard Range. </span><span style="letter-spacing: 0px;"> </span></div>
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<span style="letter-spacing: 0.0px;">We flew into Wright Valley, which hosts Lake Vanda, from the south and swung back east to camp. That gave me a great view of our science and diving tents on the lake ice. They are the tiny spots just above the grouping of three islands, in the shade from a cloud.</span></div>
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<span style="letter-spacing: 0.0px;">We landed near the NZ huts at the east end of the lake, and that is where our main living camp is. One hut is a kitchen and the other two are for storage and science. We sleep in the individual mountain tents (Tango tents from Mountain Hardware).</span></div>
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<span style="letter-spacing: 0.0px;">The camp on the ice has two tents, one on either side of the future dive hole.</span></div>
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<span style="letter-spacing: 0.0px;">One tent is for dive gear and dive prep. The other is for sample processing and analysis. It is extra large because another group will need a large tent later in the season, and it saves helicopter time and fuel if we use their tent first. We are still setting up.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4xp4iuXqzVG77bhgIJe0IqrZ45ZuVdUpwLex7tzTpplr1_QfSz3B9MsBLFJFZCqBhBUmuVIGVEmS8dL83sKcOJK3gngcZ3Py7gYhQfDPkkJwf4bYM30tsl8-NRxHTvjs_5Z8zIsvEZFv1/s1600/DSC_0832.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="265" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4xp4iuXqzVG77bhgIJe0IqrZ45ZuVdUpwLex7tzTpplr1_QfSz3B9MsBLFJFZCqBhBUmuVIGVEmS8dL83sKcOJK3gngcZ3Py7gYhQfDPkkJwf4bYM30tsl8-NRxHTvjs_5Z8zIsvEZFv1/s400/DSC_0832.jpg" width="400" /></a></div>
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<span style="letter-spacing: 0.0px;">With all this gear, we need transportation between our living camp, our lake science camp and various drill holes in the ice. </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQUEE5COVDcyScHUnt3lIu0Ih7o6zzcsSTnjz50FblFoq4xU-Oo4bfIJLiMFG4b7zLABmtq6M3xa3qQTxDKVLRsezdn2t4MfV1_KXeNNupJgm_jPsUEO4Y_7c02KTFEf2EcQ2CTX_0kCxp/s1600/DSC_0841.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="265" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQUEE5COVDcyScHUnt3lIu0Ih7o6zzcsSTnjz50FblFoq4xU-Oo4bfIJLiMFG4b7zLABmtq6M3xa3qQTxDKVLRsezdn2t4MfV1_KXeNNupJgm_jPsUEO4Y_7c02KTFEf2EcQ2CTX_0kCxp/s400/DSC_0841.jpg" width="400" /></a></div>
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<span style="letter-spacing: 0.0px;">One of my first jobs was marking ropes and lines in 5 m intervals so we can see how deeply we’ve put various pieces of gear into the lake. </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEituCxL0C0X9a_URqAyHr_YEdwG23fUn4iUj5SKLAJI5yUBQER99Q4lWAV9d0z7oKYXsak8CGs2Z_l4wIkA1tU26QZxN5eR3O2CfggOM_vA36CLsrvY-a_xk-NYFnNGjkp0bafojGzS-P3S/s1600/DSC_0838.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="265" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEituCxL0C0X9a_URqAyHr_YEdwG23fUn4iUj5SKLAJI5yUBQER99Q4lWAV9d0z7oKYXsak8CGs2Z_l4wIkA1tU26QZxN5eR3O2CfggOM_vA36CLsrvY-a_xk-NYFnNGjkp0bafojGzS-P3S/s400/DSC_0838.jpg" width="400" /></a></div>
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<span style="letter-spacing: 0.0px;">It was a great job for a warm, mostly wind-free day. </span></div>
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<span style="letter-spacing: 0.0px;">In fact, the weather has been very warm, with many of us going down to only a layer or two and gloves optional much of the time. This makes it more comfortable, but it also means that the ice is already melting, which will soon make the work more difficult. I’m hoping the weather turns colder soon!</span></div>
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<span style="letter-spacing: 0.0px;"><b>This was posted by Bill Sumner for Dawn. </b></span></div>
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Information was emailed to me by Karl Drury and included this note from Dawn:</div>
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Dear Dad,</div>
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Things are going very well. On our third day out here (4th for Ian and Tyler), the tents are all up, the first dive hole made, many water samples, and some equipment deployed. I just set up the microscopes and started playing with the photography system.</div>
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It’s going to be a great field season!</div>
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Love</div>
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Dawn</div>
Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com1tag:blogger.com,1999:blog-8855317045865636173.post-31136826877089772162013-12-01T14:58:00.000-08:002014-02-09T09:53:39.153-08:00Day 5 in Antarctica<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgf-0B2R0NX1F5Or166Az7ghc72EnTwEE-IIbMFmuI7Er0c56QdIymuAqMBH_Nmc2Oa2B5s3gTz6V4qPP9f-5ut3FWARvp86ZiUDxxDTSIr50AXKoDQPQ_fovIpXAw7Cnz_xz3SQMhugOlj/s1600/DSC_0874.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgf-0B2R0NX1F5Or166Az7ghc72EnTwEE-IIbMFmuI7Er0c56QdIymuAqMBH_Nmc2Oa2B5s3gTz6V4qPP9f-5ut3FWARvp86ZiUDxxDTSIr50AXKoDQPQ_fovIpXAw7Cnz_xz3SQMhugOlj/s1600/DSC_0874.jpg" height="320" width="212" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Devin in front of a working DTS instrument!</td></tr>
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December 1, 2013<br />
I felt a bit ill in the morning, but it wore off. Ian and I deployed the drop camera and tested a sediment sampler in the dive hole. We decided the sampler wasn't too useful and didn't use it again. In the afternoon, I helped Devin deploy the DTS. I don't know what the TLA stands for, but it consists of a long, industrial bundle of fiber optic lines that gets suspended in the water (to the bottom of the lake). A laser sends pulses down the line, and the reflections are timed. The strength and timing of the reflections measure the temperature of the cable in different places. The idea was to look for small temperature changes related to convection in the lake. <br />
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Deploying the cable was very stressful. It is a stiff cable and was wound backward, so we had to manipulate it a lot. It made many popping sounds, so both Devin and I were terrified we were breaking it. However, by the end of the day, Devin got a good signal, so we really felt like celebrating!Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-3283332304382349582013-11-30T14:51:00.000-08:002014-02-09T09:53:09.935-08:00Day 4 in Antarctica<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivQoxLktySJzxy2Yc2F8L92EutHAv4mYmr9qV_a-8Rnxo1VELaO-8mJh2b7EEcaEJVKzHXLTlqSBmtEBGDxI8eljEHNCOTLJYJbnNFVNwxTgDXa1MNLIwqlDiEuIsmHyQhRtE6NV3-QnYN/s1600/DSC_0838.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivQoxLktySJzxy2Yc2F8L92EutHAv4mYmr9qV_a-8Rnxo1VELaO-8mJh2b7EEcaEJVKzHXLTlqSBmtEBGDxI8eljEHNCOTLJYJbnNFVNwxTgDXa1MNLIwqlDiEuIsmHyQhRtE6NV3-QnYN/s1600/DSC_0838.jpg" height="212" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Dawn marking a coaxial cable for the drop camera with duct tape and a sharpie.</td></tr>
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November 30, 2013<br />
After settling in the prior evening, it was time to get down to work. I marked out 3 lines at 5 meter intervals so that we would know how far we were lowering our equipment into the lake. We drilled some holes in the ice and collected our first conductivity-temperature-depth profiles. We got our first scientific result: Lake Vanda was a meter higher than it was in 2010! We also got started on melting the dive hole. And it was warm - most of us were down to one layer on top.<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhvASb3nfg64Cv7KHdJB_erAgeRJjXLDkhb_EbKoFPsb7MR1v-qlyJHtQzg3UlYgMLObxdSWVccgCHWO7FvWRvZeDRZPZa72bl1Rh4cyD-i8Z5uHFT7P1_dm-IaIDyXLyY6vzx1nCCjV143/s1600/DSC_0840.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhvASb3nfg64Cv7KHdJB_erAgeRJjXLDkhb_EbKoFPsb7MR1v-qlyJHtQzg3UlYgMLObxdSWVccgCHWO7FvWRvZeDRZPZa72bl1Rh4cyD-i8Z5uHFT7P1_dm-IaIDyXLyY6vzx1nCCjV143/s1600/DSC_0840.jpg" height="320" width="212" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">We drilled 3 holes in the ice with a Jiffy drill and then lowered a copper coil filled with antifreeze into the hole. The equipment shown here heats the antifreeze and pumps it through the coil to melt the hole.</td></tr>
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<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-34021950425135277632013-11-29T14:42:00.000-08:002014-02-09T09:53:22.918-08:00Day 3 in Antarctica<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjemLPnsWRG8q8wjbooBTEqClT1IhOb-KEbo5isuT-t11LPfzQ5TGdzCbNXWTcbxjEmQZyuADcOTUIfTn-xRFgqpi1Oz9bPU_j5SRiQqUzMEh0c9rYHvvunG4Fvd-cHbpW_vBkccFhUjkB/s1600/DSC_0819.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjemLPnsWRG8q8wjbooBTEqClT1IhOb-KEbo5isuT-t11LPfzQ5TGdzCbNXWTcbxjEmQZyuADcOTUIfTn-xRFgqpi1Oz9bPU_j5SRiQqUzMEh0c9rYHvvunG4Fvd-cHbpW_vBkccFhUjkB/s1600/DSC_0819.jpg" height="190" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Don Juan Pond and the Dias, west of Lake Vanda, from the helicopter</td></tr>
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November 29, 2013<br />
I realized we didn't have a US-style extension cord or power strip. I got a ride over to McMurdo first thing in the morning to pick some up. While I was there, I caught up with Meghan, our coordinator for the cancelled USAP part of the trip. She said they were just getting things caught up, and it was really good that I pulled the Lake Joyce project this year. We would have been competing with a group putting in several camps on the Taylor glacier with 30,000 pounds of equipment! It was really hard to get them all in. <br />
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That afternoon, Anne, Devin and I flew out to Lake Vanda! The entire team was in the field on our 3rd day in Antarctica! The flight out was beautiful, of course.<br />
<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-73043071404456329202013-11-28T14:38:00.000-08:002014-02-09T09:52:58.567-08:00Day 2 in Antarctica<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCvwfNZQ6-Ln2le7FzRZR7Fm68GdFoQL0IM4nbS8iSeLxcNKT6OnXMgds18ThSA8ZjPitqNi0pXL-T1UFZ7lV8x4KZtn4fDGYFHxYlGUSJHzdmdOkc_Dg-g6uqWR1ro0IFxTKvRRFnVYA-/s1600/DSC_0723.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCvwfNZQ6-Ln2le7FzRZR7Fm68GdFoQL0IM4nbS8iSeLxcNKT6OnXMgds18ThSA8ZjPitqNi0pXL-T1UFZ7lV8x4KZtn4fDGYFHxYlGUSJHzdmdOkc_Dg-g6uqWR1ro0IFxTKvRRFnVYA-/s1600/DSC_0723.jpg" height="212" width="320" /></a></div>
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November 28, 2013<br />
Devin and I came back from camping after Ian and Tyler flew out to Lake Vanda. Anne was still at Scott Base, coordinating things from her end. We cleaned up our gear from the overnight and started helping Anne. Things were mostly done, so there was time to take some pictures of the base.Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-25455147309810689912013-11-28T00:44:00.001-08:002013-12-02T04:34:37.699-08:00Antarctic Field Training, Kiwi StyleI spent last night in a polar (Scott) tent on an ice shelf in Antarctica. It was a "required" snow school training event since I haven't been to Antarctica with the New Zealand program before. It was warm - just below freezing - and there was no wind for the entire afternoon, evening, night and morning. Two of those on the school (Devin - part of my team - and Karl - a photographer, videographer) slept out, completely out! Karl complained that his nose got sunburned over night. Today is Karl's 22nd birthday, and he is thrilled to have started it sleeping out in Antarctica. Here he is in the back of a Hagglund (I looked on a vehicle to spell it approximately right...).<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgEqtajyaNuJIyezjxRndzVfylUAzklOjDaF5ZKnuDlqnYlTual16O5WU89TM5fUqlq-86XxiXvw76r5iIzFJTMURwPWucixx18Q0fULGld2xwStr901Q5f48ZCgx1z2bzEIaPjWPn3asZG/s1600/DSC_0709.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="212" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgEqtajyaNuJIyezjxRndzVfylUAzklOjDaF5ZKnuDlqnYlTual16O5WU89TM5fUqlq-86XxiXvw76r5iIzFJTMURwPWucixx18Q0fULGld2xwStr901Q5f48ZCgx1z2bzEIaPjWPn3asZG/s320/DSC_0709.jpg" width="320" /></a></div>
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We took a drive up to Castle Rock in the evening. This is me with Mt. Erebus in the background. (It's the southernmost active volcano in the world and overlies a hot spot.)<br />
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And here is our field trainer Matt (left) and fellow student and reporter Deidre (right).<br />
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And here is Karl's photo of out field team:<br />
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We had a great time.<br />
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Devin, Anne, and I fly to Lake Vanda mid-day tomorrow via helicopter. We are using Kiwi-style power in the field, but have a US generator to run my microscopes. However, we almost forgot an appropriate extension cord and power strip. I'll run to the US McMurdo Station in the morning to get one. (Technically, I'm getting a ride rather than running, but it is within running distance if the weather is nice. But I'm not a cross country runner like Sasha is!)<br />
<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com4tag:blogger.com,1999:blog-8855317045865636173.post-8300988849695129272013-11-27T14:34:00.000-08:002014-02-09T09:52:32.541-08:00Day 1 in Antarctica<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikmDVMkcLH4NNEXh-SRjVDKWs4sRTn4yxXMKWo_olArLwMSTZoXRiLY4F7wwyP3vMt3PnBC9gP9rkJhSa9lTx5KJOjm1wMsWlMfJTImXjna9Ogz0eX_h4YpXn0je3y1-HqmWNKQxFDrSvi/s1600/DSC_0674.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikmDVMkcLH4NNEXh-SRjVDKWs4sRTn4yxXMKWo_olArLwMSTZoXRiLY4F7wwyP3vMt3PnBC9gP9rkJhSa9lTx5KJOjm1wMsWlMfJTImXjna9Ogz0eX_h4YpXn0je3y1-HqmWNKQxFDrSvi/s1600/DSC_0674.jpg" height="212" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Photographer Karl, trainer Matt, and Devin enjoying a chat after setting up camp.</td></tr>
</tbody></table>
<br />
November 27, 2013<br />
Our first day focused on training. Anne, Tyler and Ian got to just take the refresher training because they had previous taken Antarctic New Zealand Snow Skills, whereas Devin and I had the full overnight experience. Anne, Tyler and Ian started working on sorting gear after their half day, whereas Devin and I went out for camping on the snow. It was very warm with no wind. It was loads of fun, whereas the others were hard at work collecting the remaining gear, trying to figure out what had already been shipped out in the field, etc.Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-19497098406019535722013-11-26T14:27:00.000-08:002014-02-09T09:52:11.837-08:00Day 0 in Antarctica<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2kqs4Tj_WbW17GEmLAj2Yj-nDSAGvMHYGOpHz2DlhPsU9lAggzYHcG1KDOSr2l4n149UUtXpN8qn2qBKW9Bpr5moKoPYOIKfxgOcyirtFeMMIYI_Esy6bGzyvHE5igdXqC4NSWt0AmQzh/s1600/DSC_0651.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2kqs4Tj_WbW17GEmLAj2Yj-nDSAGvMHYGOpHz2DlhPsU9lAggzYHcG1KDOSr2l4n149UUtXpN8qn2qBKW9Bpr5moKoPYOIKfxgOcyirtFeMMIYI_Esy6bGzyvHE5igdXqC4NSWt0AmQzh/s1600/DSC_0651.jpg" height="212" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Typical view of the inside of a C-17 on its way to Antarctica. The blocks strapped down in the foreground are cement construction blocks. The thing that looks like an airplane propeller is one.</td></tr>
</tbody></table>
November 26, 2013<br />
We returned to the boarding area at 7 am (since we had already checked our bags), and this time there was only a short delay before I was seated in a jump seat on a C-17! <br />
<br />
We landed on the ice runway and were greeted by Scott Base personnel. We had a great briefing, started dealing with field gear, and started working out the logistics for getting our gear from the US program and organizing to send our samples and gear back through the US program. <br />
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDEGtoUIdn-a1nfVB9zi19VDt7Jblye0akGUCpOmK-aZEK2fmbicjAPxrOH-0NOGi6F8N9QOc4vt6Sc13VC59PflnVp_GmXWxqNxHJv42-wzho3QLbjwmEYhaT6iWrLeexMmVgFsUewalc/s1600/DSC_0656.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDEGtoUIdn-a1nfVB9zi19VDt7Jblye0akGUCpOmK-aZEK2fmbicjAPxrOH-0NOGi6F8N9QOc4vt6Sc13VC59PflnVp_GmXWxqNxHJv42-wzho3QLbjwmEYhaT6iWrLeexMmVgFsUewalc/s1600/DSC_0656.jpg" height="212" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Anne at the ice runway. Beautiful weather!</td></tr>
</tbody></table>
<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-18521699954455455472013-11-26T09:37:00.000-08:002013-11-26T09:37:17.928-08:00Made it!Tyler, Devin, Ian, Anne, and I all made it to Scott Base yesterday on our C17. The flight was fine - I'll post some images later. We then went into a flurry of field preparations. Tyler and Ian will go to Lake Vanda tomorrow with the rest of us following of Friday. Devin and I spend the night out in a tent as part of field training tonight.<br />
<br />
I'm not likely to post again until we're back from the field in late Dec or early Jan unless the weather goes bad. Until then...Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-29141651005522403762013-11-25T14:21:00.000-08:002014-02-09T09:51:36.592-08:00Day -1 in Antarctica<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgb76p1cpQK1x3BxIGKHVF-j6-wGr1p-3VH-uVmSNJFFz1nZoVAsYIHJj0UXk4xEE6ziK5tF5Q3Wp2dUA8YS68w-eEqFLyJPd2xFgC2jaSazR8ZqbngI5zbnThubSFLT0lMGIEUdmkQfqhg/s1600/P1000804.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgb76p1cpQK1x3BxIGKHVF-j6-wGr1p-3VH-uVmSNJFFz1nZoVAsYIHJj0UXk4xEE6ziK5tF5Q3Wp2dUA8YS68w-eEqFLyJPd2xFgC2jaSazR8ZqbngI5zbnThubSFLT0lMGIEUdmkQfqhg/s1600/P1000804.jpg" height="213" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The waiting lounge for Antarctic flights.</td></tr>
</tbody></table>
November 25, 2013<br />
At 6 am, we arrived at the boarding area for Antarctic flights, checked in, ate breakfast at the Sudima Hotel, and learned that our flight was delayed. Rather than wait in the Antarctic Lounge, we decided to wait in the main domestic airport lounge.<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhG_NWQqkEto8Muhmzh_fltSsWZQR_pYiLTidScOpCvjQVosw5Rc_sU8KLw6gKm4_gJ9C14T8UD-zSFmJ2viCiBw-g2Wvub_Bx2QlBnYwQ2nIUCsOuzq8-wLRLMX285kl8H9c5IGZkSDASr/s1600/P1000808.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhG_NWQqkEto8Muhmzh_fltSsWZQR_pYiLTidScOpCvjQVosw5Rc_sU8KLw6gKm4_gJ9C14T8UD-zSFmJ2viCiBw-g2Wvub_Bx2QlBnYwQ2nIUCsOuzq8-wLRLMX285kl8H9c5IGZkSDASr/s1600/P1000808.jpg" height="240" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Tyler in the domestic lounge of the Christchurch airport, just before we learned our flight was cancelled.</td></tr>
</tbody></table>
Our flight was cancelled, so we went back to the farm (after a delicious Indian lunch). We had Thai food for dinner.Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-62590102406279984402013-11-24T17:51:00.001-08:002013-11-24T17:59:36.817-08:00Nope – Back to the Farm<div class="MsoNormal">
It looked hopeful that we’d get to fly, briefly.<span style="mso-spacerun: yes;"> </span>Word was that they were starting to sweep the
runway.<span style="mso-spacerun: yes;"> </span>However, just before noon, they
cancelled our flight.<span style="mso-spacerun: yes;"> </span>I suspect the snow
was blowing back onto the runway as fast as they could remove it.<span style="mso-spacerun: yes;"> </span>Thus, we headed back to the farm.<span style="mso-spacerun: yes;"> </span>We stopped at a great Indian restaurant on
the way for lunch!<span style="mso-spacerun: yes;"> </span>We’ll try again at 7
am tomorrow morning.<o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
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<tr><td class="tr-caption" style="text-align: center;">McMurdo web cam at 2:30 pm, 25 November, Christchurch time</td></tr>
</tbody></table>
The web cam for McMurdo shows only high clouds, but on the right
side, out on the sea ice there are some fuzzy looking buildings. (You'll have to click on the image to expand it to full size to see them.) That’s where the runway is. They look fuzzy, more fuzzy than the
mountains in the distance. That’s
probably the blowing snow.<br />
<br />
Here's a picture of snow dune patterns on the sea ice from 2009:<br />
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhHp8O3jGFc9HjIntWvQXQXIpQwhTRpEy5aw7UGhMCL7LUKi_I1NUbcQxfF9FggLKrkHacpw-LCrJgd_aPMif1cvLwaWUibfyBAYwTL9HZaVQ9wsF-lndjPlTm7ZhPBO-Pio1n3iCgT3NfP/s1600/DSC_0694.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="181" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhHp8O3jGFc9HjIntWvQXQXIpQwhTRpEy5aw7UGhMCL7LUKi_I1NUbcQxfF9FggLKrkHacpw-LCrJgd_aPMif1cvLwaWUibfyBAYwTL9HZaVQ9wsF-lndjPlTm7ZhPBO-Pio1n3iCgT3NfP/s320/DSC_0694.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Patterns on the sea ice, taken from a helicopter (scale unknown)</td></tr>
</tbody></table>
<div class="MsoNormal">
<o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
The wind has been blowing constantly from the south with strong
gusts at Lake Vanda.<span style="mso-spacerun: yes;"> It's probably indicative of the same weather system that is blowing the snow on the sea ice.</span><o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6hjuYaJwOb9z5BE8Y_BjQb00ZWbNL2PzJlpHqKOxGvkSzQSeaqCJicnvh_8jKogM_Ns4gJJEupK8Vs4C3sX4M69fFJLiKAldoySC78TgHEWC6wXGr3K5TRPaPRgIJr0W6SR5VZamwl0Fu/s1600/LakeVanda_Met_72hrs_25Nov.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="238" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6hjuYaJwOb9z5BE8Y_BjQb00ZWbNL2PzJlpHqKOxGvkSzQSeaqCJicnvh_8jKogM_Ns4gJJEupK8Vs4C3sX4M69fFJLiKAldoySC78TgHEWC6wXGr3K5TRPaPRgIJr0W6SR5VZamwl0Fu/s320/LakeVanda_Met_72hrs_25Nov.jpg" width="320" /></a></div>
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<br /></div>
<div class="MsoNormal">
It’s raining in Christchurch.<o:p></o:p></div>
Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-74824805474294879772013-11-24T14:14:00.000-08:002014-02-09T09:51:20.597-08:00Day -2 in Antarctica<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg02AUa_Q9_CUGIK9ZgWSj7-pzDiYrvrpgazg561s3c0k2kGX3wzCogXM66oYzUtFyWFGViUjLf5I0pZLiSVoRY0-Bz-c3FqY5AJXbhOZ-eRmBhclpC-0fnyxMfpYEbXNOLh7kHH_qwpI6U/s1600/P1000835.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg02AUa_Q9_CUGIK9ZgWSj7-pzDiYrvrpgazg561s3c0k2kGX3wzCogXM66oYzUtFyWFGViUjLf5I0pZLiSVoRY0-Bz-c3FqY5AJXbhOZ-eRmBhclpC-0fnyxMfpYEbXNOLh7kHH_qwpI6U/s1600/P1000835.jpg" height="93" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The view of Castel's from the C1 Espresso, Christchurch</td></tr>
</tbody></table>
<br />
November 24, 2013<br />
Staying in a caravan on a farm outside of Christchurch, NZ. We thought this was our last day in New Zealand, so Ian, Tyler and I went for a walk in the fog along South Brighton beach. We had pizza and beer at Castel's near the Cardboard Cathedral.<br />
<br />
<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-39142083283987476992013-11-24T13:20:00.000-08:002013-11-24T13:23:16.011-08:00Trying to get there...The weather at the sea ice runway for McMurdo and Scott bases has been windy, with blowing snow dunes for several days. People who tried to fly on Friday, tried again yesterday, and are supposed to be on our flight today. Our scheduled plane switched from a Hercules (run by Safair) to the C17 that was scheduled to fly on Friday. <br />
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgf8Np3CAS2mgu3YrF_jUbmOqtMS0sj1NoBolZiOk1Ja7SxKBwRYrN3YDnoFEK-4Emz3w_bSx1qxE5iJW_DFLp15D8LsVyk5olFXcdKzBT5n82XPZxZwOcP-kWaghMQa7sDcozvdyl5XSdO/s1600/P1000805.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="120" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgf8Np3CAS2mgu3YrF_jUbmOqtMS0sj1NoBolZiOk1Ja7SxKBwRYrN3YDnoFEK-4Emz3w_bSx1qxE5iJW_DFLp15D8LsVyk5olFXcdKzBT5n82XPZxZwOcP-kWaghMQa7sDcozvdyl5XSdO/s320/P1000805.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The C17 (left) is our plane, which is much larger than the Hercules (white plane in background, which is the Safair plane chartered by the Italian program from a South African company; grey plane on the far right, which is a US Air Force one.)</td></tr>
</tbody></table>
<br />
Thus, our (now) scheduled plane can accommodate the increasing number of passengers and also has a bunch of cargo. Word is that it is the last C17 scheduled to fly down this year until February. Once it's "warm" near Ross Island, the big planes can't safely land and take off. Thus, they really want to get this plane and its cargo down south as soon as possible.<br />
<br />
Unfortunately, the weather is still windy, and the runway hasn't been cleared - or more likely, they've been working on it but their work keeps getting undone by the wind. Thus, we went from a required arrival time at 6:30 am for check-in and our planned departure briefing at 9:15, to a planned departure briefing at 1:15 pm. <br />
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYZRyi_9CySFP0pQXWmxfBB9vov0bSzvThgI6zoNXdNIMKVhR7tcATrs4qUgGnncCahTiCccn61RLZ0KofZ6I-oPyeaWHcAue0TXM8pOAHkIE3uGEdcJ0-isA0Gsg8z0Y3Y_W9OzvOaXjp/s1600/P1000804.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="213" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYZRyi_9CySFP0pQXWmxfBB9vov0bSzvThgI6zoNXdNIMKVhR7tcATrs4qUgGnncCahTiCccn61RLZ0KofZ6I-oPyeaWHcAue0TXM8pOAHkIE3uGEdcJ0-isA0Gsg8z0Y3Y_W9OzvOaXjp/s320/P1000804.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Departure lounge at about 8:45 am</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgK4FgZKvecvChRBUDjh_W2dUJ4rCVVnNY75fSSSDIQ3nLx-dwiKO3MGHyVZnVnrwvfDqU0EtrrNK3wDy7UiYWSORV6LLFw_LdmsYOvKXFLbGkyOOFM6IwloT1DZGhXZL59_SkiltYS4Db6/s1600/P1000808.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgK4FgZKvecvChRBUDjh_W2dUJ4rCVVnNY75fSSSDIQ3nLx-dwiKO3MGHyVZnVnrwvfDqU0EtrrNK3wDy7UiYWSORV6LLFw_LdmsYOvKXFLbGkyOOFM6IwloT1DZGhXZL59_SkiltYS4Db6/s320/P1000808.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Tyler at our new location in the Christchurch main airport departure lounge. We'll hang out here for a while,. (I told him, "Smile for Meredith" who drew a great image of him trying to get to Antarctica for our Dream Vortex.)</td></tr>
</tbody></table>
Hopefully, we'll get out today. In the mean time, I'm enjoying an extra orange.Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com1tag:blogger.com,1999:blog-8855317045865636173.post-1792070320231804182013-11-23T09:44:00.002-08:002013-11-23T09:44:43.674-08:00Field Planning<div class="MsoNormal">
Today was full of science and planning.<span style="mso-spacerun: yes;"> </span>Our entire field team (Tyler, Ian, Anne,
Devin, and me) assembled at 10 am this morning at Waterways, University of
Canterbury, Christchurch, NZ.<span style="mso-spacerun: yes;"> </span>First, we
went through our hazard assessment for our field season.<span style="mso-spacerun: yes;"> </span>This included talking about our plans, how
they might change, making sure communications are clear, avoiding environmental
damage to Antarctica, avoiding damage to our bodies, training we will get at
Scott Base, etc.<span style="mso-spacerun: yes;"> </span><o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
We then moved on to talking about something very important:
diver safety and the signals we’ll use to communicate between the diver and the
people on top of the ice tending the dive.<span style="mso-spacerun: yes;">
</span>In the past, we have had voice communication between the diver and the
dive tenders.<span style="mso-spacerun: yes;"> </span>This year we won’t because
we are diving under the Antarctica New Zealand program.<span style="mso-spacerun: yes;"> </span>They have different rules and equipment, and
the divers will take down their own air with them.<span style="mso-spacerun: yes;"> </span>The diver still goes through a hole we melt
in the ice.<span style="mso-spacerun: yes;"> </span>They will be tethered with a
rope to the surface that a dive tender holds and handles the entire time.<span style="mso-spacerun: yes;"> </span>They let out rope as the diver moves farther
away and pulls rope in as the diver comes back toward the hole in the ice.<span style="mso-spacerun: yes;"> </span>We’ll communicate using pulls on the
rope.<span style="mso-spacerun: yes;"> </span>One pull from the diver means “I’m
okay”.<span style="mso-spacerun: yes;"> </span>The person on top tending the
line repeats the pull to say “message received”.<span style="mso-spacerun: yes;"> </span>Two pulls from the diver says “give me more
slack on the rope”, with two pulls from the person on top to say “I heard you
ask for more slack on the rope”.<span style="mso-spacerun: yes;"> </span>Three
pulls means the person on top should pull in slack on the rope.<span style="mso-spacerun: yes;"> </span>A whole bunch of pulls means there is an
emergency, and the person on top should responsibly pull the diver back to the
hole and out of the water.<span style="mso-spacerun: yes;"> </span>We don’t
expect to need the last signal.<span style="mso-spacerun: yes;"> </span>We also
talked about pre-planning the dives, including the amount of time the diver
expects to be down, etc.<span style="mso-spacerun: yes;"> </span>This is one of
the most important safety aspects of our field program.<span style="mso-spacerun: yes;"> </span>We all agree that although the diving has the
potential to be dangerous, we will take the proper precautions and sufficiently
plan that it is unlikely anything will go wrong.<span style="mso-spacerun: yes;"> </span>It’s more likely one of us will slip on the
ice and sprain a wrist than to have a safety issue with diving.<o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
After the dive discussion, we talked about the field
equipment we’ll have, including tents, heaters, dive hole melters, etc.<span style="mso-spacerun: yes;"> </span>as well as the science equipment.<span style="mso-spacerun: yes;"> </span><o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
After a break for tea, we moved on to our science
plans.<span style="mso-spacerun: yes;"> </span>We’ve been working on a document
that describes our science goals, how we intend to accomplish them, and the
equipment we need for weeks now.<span style="mso-spacerun: yes;"> </span>Today,
though, everything came together.<span style="mso-spacerun: yes;"> </span>With
the five of us in the room, we went through each goal, how we might accomplish
it, its priority, and how it might be scaled back if we run short of time.<span style="mso-spacerun: yes;"> </span>We asked ourselves and each other what data
we need to publish the scientific papers we want to write.<span style="mso-spacerun: yes;"> </span>We asked each other why we would want to
measure this parameter here or there.<span style="mso-spacerun: yes;"> </span>We
learned about new things from each other.<span style="mso-spacerun: yes;">
</span><o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
This was fantastically useful because we now know what each
person wants to come home with from the field season, we adjusted our plans to
fit our science goals better, we identified some new observations that will be
easy and might lead to important insights into how Lake Vanda works, and we got
to know each other much better.<span style="mso-spacerun: yes;"> </span>We ended
by laying out what observations we would target for each week we’ll be in the
field.<span style="mso-spacerun: yes;"> </span>It will all fit in with some
bad-weather days, as long as there aren’t too many delays.<span style="mso-spacerun: yes;"> </span>If there are delays, we have our work
prioritized, so we know where to cut if necessary.<o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
All of this took until 5:30 pm!<span style="mso-spacerun: yes;"> </span>(Minus 20 minutes to get take-away from the
Asian place down the road.)<o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
Tomorrow, we have a bit of shopping to do, and we might
address a couple more science questions after sleeping on them overnight.<span style="mso-spacerun: yes;"> </span>Also on the agenda: a BBQ party in the
afternoon.<span style="mso-spacerun: yes;"> </span>We are scheduled to fly to
Scott Base on Monday morning!<o:p></o:p></div>
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<br /></div>
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This is a great start to our field season.<o:p></o:p></div>
Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-15300544439583668422013-11-22T11:52:00.000-08:002013-11-22T11:53:40.254-08:00New Zealand Farm Stay<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgntQEHS8P-WPQCgHy8BGXqHuya_87x6f01FE4HKIh3UJAMLAzGWOsSXXur6oqcbYP_zPnpmhzLS4lUkLH74DY6kQpnPTVFkqWvOGd_FEMcBUVM0WlhPNuKD_IQ6n_BjnoMbWzG2uWAL3od/s1600/DSC_0638.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="211" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgntQEHS8P-WPQCgHy8BGXqHuya_87x6f01FE4HKIh3UJAMLAzGWOsSXXur6oqcbYP_zPnpmhzLS4lUkLH74DY6kQpnPTVFkqWvOGd_FEMcBUVM0WlhPNuKD_IQ6n_BjnoMbWzG2uWAL3od/s320/DSC_0638.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small; text-align: start;">My home sweet home for 5 days.</span></td></tr>
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<br /></div>
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<o:p></o:p></div>
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Tyler and I arrived in Christchurch after a 12.5 hour flight
from San Francisco to Auckland, NZ and a 1.5 hour flight from Auckland to
Christchurch.<span style="mso-spacerun: yes;"> </span>Ian and Devin met us at
the airport, and we went directly to Antarctica New Zealand, which is less than
a mile from the airport.<span style="mso-spacerun: yes;"> </span>At AntNZ, we
left some of our gear for shipment to Scott Base and selected our cold weather
clothing.<span style="mso-spacerun: yes;"> </span>The AntNZ clothing is very
nice, and I’ll eventually write about it, probably after the trip so I can
provide a review as well.<o:p></o:p></div>
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<br /></div>
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From AntNZ, we went out to Jenny’s farm, a few miles south of
Christchurch.<span style="mso-spacerun: yes;"> </span>Jenny was Devin’s Ph.D.
advisor and is a good friend of Ian’s.<span style="mso-spacerun: yes;">
</span>She and her husband are at a conference this week, and they needed some
house sitters to take care of their chickens, sheep and cats.<span style="mso-spacerun: yes;"> </span>We gladly volunteered.<span style="mso-spacerun: yes;"> </span>It’s a great place!<span style="mso-spacerun: yes;"> </span>Tyler and Devin are staying in the house, and
I got the vintage caravan!<o:p></o:p></div>
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<br /></div>
<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi12vgEbZoJseioOICCB6da6j8RUcRG_4KykVvNE6iMd2toffnDTUxd_rGmm9EombXDic0sQDoW_2pQ6bOqJPjxPi-14F5lRIx2Af7VK588l9qGyhjeUjXiAbIcMj8HmF6m3sZZU0gmas5p/s1600/DSC_0637.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi12vgEbZoJseioOICCB6da6j8RUcRG_4KykVvNE6iMd2toffnDTUxd_rGmm9EombXDic0sQDoW_2pQ6bOqJPjxPi-14F5lRIx2Af7VK588l9qGyhjeUjXiAbIcMj8HmF6m3sZZU0gmas5p/s320/DSC_0637.jpg" width="211" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small; text-align: start;">The view in from the front door.</span></td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTfzAIP2zeKIpcfbWvLiLV3LWhoewE7eiMvBZSWu4bxljRco_ECXjMaMVJ7pam4Eb7l1rnTWMiLNUyIx_0ZS7AnhshDWvpWgbnvkkehmFvup6shgnBNtEiuf4IT6J2DX1TpLPhMzXTTpWH/s1600/DSC_0636.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="211" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTfzAIP2zeKIpcfbWvLiLV3LWhoewE7eiMvBZSWu4bxljRco_ECXjMaMVJ7pam4Eb7l1rnTWMiLNUyIx_0ZS7AnhshDWvpWgbnvkkehmFvup6shgnBNtEiuf4IT6J2DX1TpLPhMzXTTpWH/s320/DSC_0636.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small; text-align: start;">The living quarters. I do get to use the main house, too, including its great shower, kitchen, and comfy chairs. However, I could see loving a trip in a caravan like this.</span></td></tr>
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<br />
The caravan is a New Zealand classic and is exceptionally
charming. I’m loving it, especially in
the morning as the birds start waking up, the rooster crows, and the sunrise
shines in through the window. There are
both starlings and finches nesting in the shed, and I can watch them bringing
food to their chicks. Some bird loves to
run across the metal roof, the full length of the shed, making pitter-patter
noises.<br />
<o:p></o:p></div>
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<br /></div>
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A couple of the sheep will eat food pellets out of my hand,
and they keep migrating to the wrong paddock.<span style="mso-spacerun: yes;">
</span>I have been herding them back.<span style="mso-spacerun: yes;">
</span>The chickens produce lots of eggs, which are often slightly oddly
shaped, all different sizes, and very tasty.<span style="mso-spacerun: yes;">
</span>So are the fresh herbs, broccoli, and chard from the garden.<span style="mso-spacerun: yes;"> </span>We’re supplementing those with many more
fresh fruits and veggies.<o:p></o:p></div>
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<br /></div>
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These few days are a complete contrast from what we’ll be
experiencing starting Monday.<span style="mso-spacerun: yes;"> </span>I’m trying
to enjoy every bit of it while I can!<o:p></o:p></div>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiO-HD35017-YnarMcmhSI6jJ4ChSRBx8QZjwvsR60QQwZ2kh9vfmdrKdDIVxvWfG1cIesM2DqaMA3M28E7E7jCbz-a0T1cqUvWMafPwQVkNpPDOmdT6GbT5qaSXJAW9zlHseQ61fNpujhL/s1600/DSC_0639.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="211" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiO-HD35017-YnarMcmhSI6jJ4ChSRBx8QZjwvsR60QQwZ2kh9vfmdrKdDIVxvWfG1cIesM2DqaMA3M28E7E7jCbz-a0T1cqUvWMafPwQVkNpPDOmdT6GbT5qaSXJAW9zlHseQ61fNpujhL/s320/DSC_0639.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small; text-align: start;">The view out the front window with my favorite sheep and a pukeko.</span></td></tr>
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<br />Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0tag:blogger.com,1999:blog-8855317045865636173.post-660407180249848092013-11-12T12:46:00.001-08:002013-11-17T23:55:38.525-08:00Not so Cold at Lake Vanda in DecemberOur field season will focus on Lake Vanda this year. (Due to the US government shutdown, our planned field work at Lake Joyce is postponed until next year.) And we will be heading to the field at the very end of November. This is late in the year for us, and the weather should be warm as we head into the austral summer. My colleague Ian says that the temperatures likely won't fall below -10°C (14°F) even at night. During the day, temperatures will often be above freezing and will be genuinely warm inside the tents when the sun is shining. You can monitor the <a href="http://www.wunderground.com/cgi-bin/findweather/getForecast?query=zmw:00000.1.89866">weather at Marble Point</a> to get an idea of what it's like at Lake Vanda. Our wind conditions will be different, and since we are farther from the ocean, we'll have fewer clouds. (The main source of moisture in the area is the ocean.) I have never compared the temperatures between Marble Point and Lake Vanda, so there might be some systematic differences.<br />
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[UPDATE: <a href="http://cyanobacterialadventures.blogspot.com/">Tyler</a> provided a <a href="http://dl.dropboxusercontent.com/u/63974896/LakeVanda_Met_72hrs.jpg">link to the weather station</a> at Lake Vanda showing the last 72 hours of data! He write a great blog!]<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgv7RRniAxhDNzpohmIWRt4qloCEAT73WS9wXjLTRXhezu2ErXhd4moSRXP_fLOtDvxRI6ZgwVQ6MeOjvMi2xW-oyBJViLbBmJbrAAzQaC6tFVsrv6b4d9AfmUD33tbv_68n2yRGJaWPmTx/s1600/MDM_Lakes.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="453" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgv7RRniAxhDNzpohmIWRt4qloCEAT73WS9wXjLTRXhezu2ErXhd4moSRXP_fLOtDvxRI6ZgwVQ6MeOjvMi2xW-oyBJViLbBmJbrAAzQaC6tFVsrv6b4d9AfmUD33tbv_68n2yRGJaWPmTx/s640/MDM_Lakes.jpg" width="640" /></a></div>
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One advantage of having warmer temperatures is that we don't have to bring as many clothes, and we'll be able to wear fewer layers. I won't take my <a href="http://dawninantarctica.blogspot.com/2013/09/footwear-including-new-boots.html">brand new, super warm boots</a>. Rather, I plan to use my old Sorels and regular hiking boots. I won't take my own down jacket either. However, both my super warm boots and jacket are already in Antarctica in with gear we shipped as cargo. They'll just hang out at Scott Base waiting for me to take them back home. Other clothing I'll leave behind includes extra sweaters and snow/ice pants. I'll provide a detailed list in the next day or two as I pack everything up.<br />
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I don't need to worry about my toothpaste or wet-wipes freezing, either. Small mouth water bottles will work, since they aren't likely to freeze shut. Many things are easier when it's warmer.<br />
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The downside of the warmer weather may be meltwater on the lake, difficulty keeping ice screws from melting out, gear melting into the lake ice very quickly, and a meltwater moat around the lake. The moat can be a big problem. We'll camp on the shore at the Vanda huts, but diving and sampling all occur on the lake ice. If there is a ring of water around the lake, it's hard to get to the ice. Fortunately, there is a small boat at Lake Vanda to solve this problem, so boating may be included in our field season this year! It all depends on the details of the temperatures this particular season. It will be fun to see how it all goes.Dawn Sumnerhttp://www.blogger.com/profile/15967361551408621044noreply@blogger.com0