What is IPY
Displaying items by tag: Land
Wednesday, 23 July 2008 18:44
Indian Outreach Efforts – An Update
Dr. Manish Tiwari, scientist at the National Centre For Antarctic & Ocean Research in Goa, India, writes: India is enthusiastically pursuing the outreach goal of IPY, which is being coordinated by National Centre for Antarctic & Ocean Research (NCAOR, under the Ministry of Earth Sciences, Govt. of India) in collaboration with WWF-India (World Wide Fund for Nature). Several competitions were conducted for the school children throughout India that included poster & model making, projects, stamp designing etc. as outlined in the chart below. The award winning posters of the first competition i.e.,...
Published in News And Announcements
Wednesday, 23 July 2008 18:54
UArctic's IPY web pages updated
A 150-meter ice core pulled from the McCall Glacier in the Arctic National Wildlife Refuge this summer may offer researchers their first quantitative look at up to two centuries of climate change in the region. The core, which is longer than 1 1/2 football fields, is the longest extracted from an arctic glacier in the United States, according to Matt Nolan, an associate professor at the University of Alaska Fairbanks Institute of Northern Engineering who has led research at McCall Glacier for the past six years. The sample spans the entire depth of the glacier and may cover 200 years of history, he said. “What we hope is that the climate record will extend back into the Little Ice Age,” said Nolan. “Up until the late 1800s these glaciers were actually gr...
Published in News And Announcements
Friday, 18 July 2008 22:13
Day 87-88: Same song, different station
Packing seems to have become a major component of our lifestyle. Our house is mostly one big room which seems to spend most of its time full with piles of gear in some stage of being packed or unpacked. Right now we’re packing for three trips – we leave for Colorado tonight for a week, we leave for a backpacking trip into the glacier a few days after we return, and we have 5 weeks on the glacier after that. The glacier portion is the most work to prepare for, as we’re packing this with the plan of dropping it down to the glacier from the plane, in case the plane is unable to land on the ice. So everything has to be packaged to survive a drop of 100 feet and a crash landing at 50 mph. I have no prior experience at air drops, so this is sure to be a learning experience. Fortunately its...
Wednesday, 16 July 2008 22:06
Day 84-86: Press releases gives McCall Glacier another 15 minutes of fame
The past few days for me have been consumed by a press release that UAF sent out describing our ice coring success. I had written a draft of the release several weeks earlier and sent it out to our UAF public information office on our arrival in Kaktovik, but it took some time to work through the system and go through a few iterations. Here is a link to the initial release. Much of the time related to this got soaked up getting photos ready. I had prepared a bunch the week before, but then I was told we needed model release forms from everyone in the photos. Of course nearly all my photos have people in them, and most of these people are hard to get hold off in summer. So then I had to sort through to find...
Sunday, 13 July 2008 22:04
Day 82-83: Settling into civilization
With Benny gone and our next departure still a week away, we had a brief lull to remember what summer in Fairbanks is like. We also caught up a bit with a few old friends and Turner had the chance to visit with his friends too. In between we shopped for food for the next phase of the trip (about 160 man-days worth) and began considering how to package this for air-drops. I stitched a few of my high resolution panoramas – composed of 300 to 500 shots each – and was relieved to learn that they stitched beautifully for the most part. I’ll try to upload them in the next week, but they are multi-gigabyte files and I may not have the chance. ...
Friday, 11 July 2008 22:02
Day 79-81: Return to civilization
Given that the weather was not improving and that Nick and Jessica had the Kaktovik scene figured out, we decided to head back to civilization a bit earlier. We had begun settling into Kaktovik life pretty well and enjoyed our visits with the neighbors and the chaos of Waldos, but the list of things to do to prepare for the next phase of the trip began growing longer and longer the more we thought about it, and the list of productive things to do in Kaktovik was getting pretty short. So once Turner got his stitches out, we switched our reservations and headed back to town. Huge snowfences surround the infrastructure of Kaktovi...
Tuesday, 08 July 2008 21:50
Day 78: High-resolution aerial photography
Benny arrived from LA a few days ago and today we went on our first photo flight. Benny is a professional photographer and specializes in aerial photography. He brought with him several high-powered cameras and helped me figure out how to use the one I bought from him on ebay. My camera uses 5 inch wide negative film to take 4”x5” photos, compared to 35mm film which is less than 1” squared. One of Benny’s cameras takes 8”x10” photos. He built this camera himself, machining it out of a solid block of aluminum to be lightweight and aerodynamic. Another camera has 39 megapixel resolution, compared to my high-end Nikon which has only 12 megapixels, and it also has 12 stop dynamic range, which greatly exceeds a digital Nikon at about 6 and even black and white film at 10. So we look...
Monday, 07 July 2008 21:45
Day 75-77: Lidar success!
After 50 years of attempts, a high resolution map of McCall Glacier may have just been acquired. During the International Geophysical Year 1957-58, eight glaciers in Alaska were selected for long-term research. A primary component of this research was the use of topographic maps – by making such maps periodically, the evolution of the shape of the glacier could be tracked and its dynamics better understood. McCall Glacier was the centerpiece of this research and the only glacier of the eight where a major field program was established. As such, the first tests in making topographic maps were done there as that is where it would be most useful to the field team. Unfortunately, circumstances prevented the mapping team’s return to McCall Glacier, and all that we were left with is a map ma...
Friday, 04 July 2008 21:42
Day 74: Celebrating Independence Day and a bit of lidar success
I was up at 4:30AM to check weather, which was nearly perfect, and I checked in with Jessica and Nick to let them know that today could be our day. We only need about 3 days of this weather to complete the project, and in one day we could gather our most essential data. They arrived from Deadhorse about 7AM and we quickly redeployed the ground-based GPS. I sat in the truck as they taxied off, waiting around to get a picture of them taking off with the background of mountains. But they never took off. I called them on the radio and they said they were having issues with the lidar. So they came back to the ramp and we fooled around with things a bit more. I unplugged their antenna going to the top of the plane and plugged it back in, and about this time the unit came alive again. So they tax...
Monday, 21 July 2008 21:36
Sarah Das sat down on the ice sheet, opened her backpack, and took out a cinnamon Pop-Tart. She chewed quietly, needing a moment to recharge. For the last 90 minutes she had hiked around a massive, deep crack, split by a rushing river and smaller streams of melted ice sheet water. Somewhere in these channels she needed to find a place to dump in nine pounds of a harmless tracing dye. She will use it to trace the water’s flow under the ice, over 40 kilometers of bedrock, to Greenland's coast. Her goal is to see how long it takes, and in what concentration the dye appears, in order to begin mapping this under-ice pathway. But if she didn’t find an ideal spot in the river to dump in the dye, she worried that it wouldn’t make it into the moulin—a hole in the ice drainin...