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Dispatches from the crew of the Scientists and Crew of the LMG 02-05

August 28 Greetings from the Scientists and Crew of the LMG operating in the Western Antarctic Peninsula. Today as we pulled away from ice station "Rodin", the ice team frantically scurried about the ice, collecting the last cores and thickness measurements from the piece of ice that we had called home for the last week. Other groups prepared for getting underway in search of penguins and continued analysis of samples already collected. Pictured here is Kerry Claffey in the freezer van (-20C) preparing some ice cores for structural analysis. The ice core is cut into sections and melted onto glass plates. It is then planed to 2-3mm thick. The photo on the right shows three distinct ice types found in one 15cm core; fine grained snow-ice on the top, medium grained frazil in the middle and larger grained columns of ice at the bottom. (Photo by Paula Adkins and Kerry Claffey)



Picture of the Day -- August 30, 2002 Another winter day in the Antarctic. Today started out with the search for Penguins, however, by mid-morning the wind had picked up and the visibility dropped such that we could see only a few feet in front of the ship. Since noon time the ship has been parked in the ice. Parked, but still moving, as the ice pack has been drifting at 1.3 knots (nautical miles per hour), blown by 40 to 50 knot winds all afternoon. As night fell, the winds continued howling. Pictured today is the blowing snow in the R/V LM Gould spotlights. Notice that the snow is not falling, but being blown horizontally by the high winds. Pictures by Kerry Claffey.


Sept 1 Greetings from the Scientists and Crew of LMG 02-05 operating in the Western Antarctic Peninsula. We are currently steaming around the northern sector of the survey grid looking for a location to establish our 3rd and final process station. Unfortunately, the last storm has generated a sizeable ocean swell that has broken up most of the ice in this region. So we are having a hard time locating a good floe to work with. Ingenuity is always an important component of a long cruise. In today's picture we see a game of 9 pin Hall Bowling. One of the advantages of being in the ice is that there is little if any boat movement. This makes it possible to use the hall as a bowling lane. We made pins out of nalgene bottles filled with just enough water and the bowling ball was our multi-functional ball that just a few days earlier was used for soccer on the ice. These evening activity gives a nice close to a day of hard work in the labs analyzing samples. (Photo by Dan Costa).

Today we traveled in search of the elusive "perfect" ice floe for our last long term processes station. What we found was a swell traveling through the ice pack. This swell had broken apart the ice pack into small floes. In the morning we said goodbye to the NBP as they headed off shore to continue their survey grid. We turned inshore to look for larger floes but never found them. By mid-morning we gave up looking for larger floes and worked on a typical floe for the area of 40 meters diameter. Beneath the ice the divers found krill in association with the ice. It is the first time since the beginning of the cruise that this has been observed. The ice team drilled 20 ice thickness holes and sampled 10 ice cores. Two CTD's were performed to understand the oceanographic aspects of the area.


Sept 2 Greetings from the Scientists and Crew of LMG 02-05 operating in the Western Antarctic Peninsula. The last storm and associated ocean swell broke up the ice in this region, so after looking for a floe to locate our third and final process station we decided to work on a series of small floes. Today we spent the day quite productively working on a flow that allowed us to establish a mini process station. Divers were able to collect krill and water samples, the ice team cored the floe and took snow samples. The floe was big enough to allow us to remain here for at least one more day and we will continue to work here through 3 Sept. The photo of the day shows the ice teams working to the left and right of the divers. The divers deployed off of the Zodiac that was craned onto the ice. Photo by Dan Costa


Greetings from the Scientists and Crew of the Southern Ocean GLOBEC Cruise LMG 02-05 operating in the Western Antarctic Peninsula. Pic of the Day September 3. The Emperor takes a bow. On Tuesday morning, we were greeted by a lone Emperor penguin that was curious enough to pay us a visit. It was quite a spectacle for the scientists and crew because this was the first Emperor penguin of this cruise to venture close enough to be photographed. Photo by Scott A. Shaffer.


September 5, 2002 Sunset over the last buoy Greetings from the Scientists and Crew of the Southern Ocean GLOBEC cruise. Today was another beautiful Antarctic day. Temperatures around -15C with only light breezes. A new snow fall overnight and through out the day there was a continuous fall of "diamond dust" (fine grained ice crystals floating through the air). It was another busy day at ice station Neptune: 2 sets of dives, ice coring, ice optics and one last look at the drifting ice buoy that was deployed yesterday. The photo is of the last drifting ice buoy just before the LMG drove off into the sunset to perform a CTD cast. (Photo by Kerry Claffey)

For your info, we just entered the data for today and here are the results: Each of the 2 lines consisted of 25 holes. Line 1 Averages Snow = 0.73m Ice = 2.13 meters > Totals Snow 18.95m Ice = 55.60 meters > Line 2 Averages Snow = 0.91m Ice = 3.05 meters > Totals Snow = 23.49m Ice = 76.47 meters

Grand Total 42.44 meters snow depth shoveled out
132.07 meters of ice drilled by hands


Greetings from the Scientists and Crew of LMG 02-05 operating in the Western Antarctic Peninsula. Picture of the Day - Sept. 5, 2002 -- Deep Drilling Today was a busy work day for all of the groups. The morning started early with a CTD cast down 300m (1000 feet) into the ocean. We then pulled up to a new ice floe. This new floe is older and thicker with lots of snow cover. While the divers performed 2 dives (in search of Krill), the ice team enlisted seal team members to help with two 25 meter transects across the ice floe. On each transect we shoveled a hole in the snow at 1 meter increments to determine snow depth, then drilled through the ice at each shoveled hole to determine ice thickness. Snow depth along the lines averaged 82cm ( 33 inches) of snow. Our greatest snow depth was 140cm ( 55 inches). Ice thickness along the lines averaged 2.59m (8.5 feet), with the greatest ice thickness measured being 5.65m (18.5 feet). Today's picture shows Pete Hartsough lowering the 2 inch drill to finish drilling an ice hole that is over 5 meters (16 feet) deep. (Notice how the drill towers over Pete's head.) While the ice and seal teams were working on the transect, three seals hauled out on a nearby ice floe. When diving and ice transecting were finished, the ship maneuvered so that the seal team could reach this floe. The seal team then caught and worked on (studied) one of the seals. Cheers, LMG


Sept 6 Greetings from the scientists and crew of the Southern Ocean GLOBEC Cruise operating in the Western Antarctic Peninsula. September 6. The LMG continues to operate in the same general area, though on a different floe from yesterday. The Seal Team was finally able to work on another crabeater last evening. Although all their satellite tags were deployed early in the cruise, they are still able to make physiological studies. The Ice Team recruited help from others on a beautifully clear day and collected many meters of core, and the divers completed two dives. Everyone is pleased with the amount of work we're accomplishing, but we're starting to think about port calls and heading home. Today's picture of the day shows the dive team collecting krill and diving to characterize the under ice habitat of krill. Photo by Carey Kuhn.


Sept 7 Greetings from the scientists and crew of the R/V LM Gould operating in the Western Antarctic Peninsula. One of the advantages of getting up for a 6:30 CTD is that you can see the sunrise if there is one. This morning we started the day with a gorgeous sunrise that took almost a hour to complete. At these high latitudes the sun rises and falls very slowly. Later in the morning the ice dynamics team got out and completed a whole series of ice optics measurements, the ice biologist took core samples and the krill team, made a series of dives. Today the seal biologists also has some excitement as two crabeater seals hauled out just in front of the ship. They were able to successfully complete a set of measurements on one of them. Although, we all feel the end of the cruise is near, we are certainly making good use of our last few days of science. Photo by Dan Costa


Picture of the day for the 8th of September. Greetings from the scientists and crew of the R/V LM Gould operating in the Western Antarctic Peninsula. We were not able to maintain position against the floe we worked on the past two days, but we quickly found another location in the immediate vicinity in the morning. After lunch the Ice Team went out to make optics measurements and the Dive team made two dives. There are lots of seals in the area, one hauled out relatively close to the ship so the Seal team completed measurements on their 15th seal. Given the ice conditions both the Ice and the Seal teams were left on separate floes. In both cases when the ship came alongside to pick them up the pressure of the ship caused their respective floes to crack. The picture of the day taken by Peter Hartsough shows the Ice Team as they are being picked up by the ship. Notice the large crack in their ice floe.

Read the First Collection of Dispatches from the Gould, click here

Dan Costa, UCSC professor of biology, takes us on a scientific voyage
of Antarctic discovery. As chief scientist aboard the Research Vessel
Laurence M. Gould, Costa documented the work of researchers
investigating how climate drives the biology of orcas, penguins,
and crabeater seals.

visit Andy's Antartcia - click here


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