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(NASA Crew Earth Observations)

Photographing the Earth from the International Space Station

Astronaut Photography of Earth - Display Record


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View ISS038-E-47324.JPG 90204640426 No No
View ISS038-E-47324.JPG 257162540359 Yes No NASA's Earth Observatory web site
View ISS038-E-47324.JPG 4611221440960 No No NASA's Earth Observatory web site
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Mission: ISS038 Roll: E Frame: 47324 Mission ID on the Film or image: ISS038
Country or Geographic Name: ARGENTINA
Center Point: Latitude: -50.0 Longitude: -73.5 (Negative numbers indicate south for latitude and west for longitude)

Stereo: (Yes indicates there is an adjacent picture of the same area)


Camera Tilt: High Oblique
Camera Focal Length: 65mm
Camera: N5: Nikon D3S
Film: 4256E : 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format.


Film Exposure:
Percentage of Cloud Cover: 25 (11-25)


GMT Date: 20140213 (YYYYMMDD) GMT Time: 122739 (HHMMSS)
Nadir Point Latitude: -51.8, Longitude: -65.4 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: West
Sun Azimuth: 76 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 228 nautical miles (422 km)
Sun Elevation Angle: 28 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number:


ISS038-E-047324 (13 Feb. 2014) --- This grand panorama of the Southern Patagonia Icefield (center) was imaged by an Expedition 38 crew member on the International Space Station on one of the rare clear days in the southern Andes Mountains. With an area of 13,000 square kilometers, the icefield is the largest temperate ice sheet in the Southern Hemisphere. Storms that swirl into the region from the southern Pacific Ocean (top) bring rain and snow (equivalent to a total of 2-11 meters of rainfall per year) resulting in the buildup of the ice sheet shown here (center). During the ice ages the glaciers were far larger. Geologists now know that ice tongues extended far onto the plains in the foreground, completely filling the great Patagonian lakes on repeated occasions. Similarly, ice tongues extended into the dense network of fjords (arms of the sea) on the Pacific side of the icefield. Ice tongues today appear tiny compared to the view that an "ice age" astronaut would have seen. A study of the surface topography of sixty-three glaciers, based on Shuttle Radar Topography Mission (SRTM) data, compared data from 2000 to data from studies going back about 30 years (1968-1975). Many glacier tongues showed significant annual "retreat" of their ice fronts, a familiar signal of climate change. The study also revealed that the almost invisible loss by glacier thinning is far more significant in explaining ice loss. The researchers concluded that volume loss by frontal collapse is 4-10 times smaller than that caused by thinning. Scaled over the entire icefield, including frontal loss (so-called calving when ice masses collapse into the lakes), it was calculated that 13.5 cubic kilometers of ice was lost each year over the study period. This number becomes more meaningful compared with the rate measured in the last five years of the study (1995-2000), when the rate increased almost threefold, averaging 38.7 cubic kilometers per year. Extrapolating results from the low altitude glacier tongues implies that the high plateau ice on the spine of the Andes is thinning as well. In the decade since this study the often-imaged Upsala Glacier has retreated a further three kilometers, as shown recently in images taken by crew members aboard the space station. Glacier Pio X, named for Pope Pius X, is the only large glacier that is growing in length.

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