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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...
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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...
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In the International Polar Year, many people try to help with focusing on polar science. On June 26, we had a visit of Royal ambassadors, the heirs of the Scandinavian thrones: Crown Princess Victoria of Sweden, Crown Prince Frederick of Danmark and Crown Prince Haakon from Norway. They were on a boat trip with the Swedish ice breaker Oden and arrived per helicopter.
There was a program with informal presentations and an excursion to the Zeppelin and marine station. During the city walk, they visited the Netherlands Arctic Station. Victoria immediately noticed my wooden shoes. On the picture from left to right: Crown Prince Haakon of Norway, the Governor of Svalbard (Sysselmannen), Oddvar Midtkandal (director of Kings Bay),
Crown Princess Victoria of Sweden, Kim Holm...
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Friday, 04 July 2008 21:42
Day 74: Celebrating Independence Day and a bit of lidar success
Written by Matt Nolan
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...
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My name is Gianluca Frinchillucci, I am an Italian polar researcher and the Director of the Polar Geographic Institute "S.Zavatti" of Fermo, Marche Region.
In this moment I am in Eastern Greenland, in the village of Isertoq. Together with a group of Italian researchers, we are realizing a research expedition called "Saxum", in this part of Greenland.
It is a very important initiative, one of the few Italian activities realized during IPY. For this reason also the President of Italian Republic, Giorgio Napolitano, give at this expedition a merit badge.
It is realized in the sphere of the CNR-Polarnet Project "Map of Arctic People", in collaboration with the Explora-Nunaat Association, started on the 11th of June and finishing on the 9th of July....
Our first serious injury of the trip occurred today. People often ask me about the risks associated with working in the remote field, and my contention has always been that it is safer there than in civilization. In the field, the situation is simple – we need to be concerned about weather, animals and glacier travel, plus a few things associated with camp life like tent stability and stove safety. But in civilization, there are countless potential risks – things associated with vehicles, buildings, fuels, people, etc etc. In this case, we spent the late afternoon helping Walt shuttle passengers to the airport. The weather was marginal and not good enough to land, so we stayed down at the strip encouraging the Frontier pilot circling overhead to hang out to the last possible minute as ...
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After our first night’s sleep in a bed, the anticipated chaos associated with our major lidar campaign began. Nick and Jessica from Aerometric showed up in the morning in their Piper Navajo equipped with their lidar unit. The lidar is essentially a laser beam that sweeps left to right as they fly forward, measuring the distance to the ground along a swath determined by the sweep angle of the lidar. In our case, this swath is a few kilometers wide by the time it reaches the ground from 12,000 feet. As they fly, a GPS unit in the plane is used to determine their position, corrected by the ground-based GPS we deployed in the field the day before. We also deployed a few more GPS here in Kaktovik to improve these corrections and give them some preliminary data to use to ensure the day’s acq...
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Today we ended Phase Two of the project and began Phase Three. It started out bright and sunny, but by mid-morning the thunderheads had built up and by mid-afternoon we had been getting rain for a while. Dirk launched about 2PM from Coldfoot to come get us with his Beaver, now on tundra tires instead of skis, bringing John Sebert with him to deploy some GPS base stations. They showed up at our strip about 5:30PM, and we loaded up to set up another base station further up the valley before heading back to Kaktovik.
The packraft deployed on the Jago River.
...
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It began as a straightforward day, but quickly took a number of twists and turns. The biggest major wrinkle was that Jason discovered that he had forgotten a cable for the differential GPS. The idea was that we were going to survey the valley on our hike down and use these data as QC data for the lidar acquisition, planned to start in a few days. But he decided not to turn it on during our rock crossing as likely the antenna would get jostled too much to acquire reliable data, so we didn’t find out about the cable until now. So the choices were for one or more of us to go back and get it, or try to find an alternate cable and get it sent to Kaktovik fast. Given that it was Sunday in civilization, we opted to go back and get it. So Jason and Joey headed off – with no packs! – while Kr...
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