First point measurements of ice-sheet thickness change in Antarctica
نویسندگان
چکیده
منابع مشابه
Measurements of Past Ice Sheet Elevations in Interior West Antarctica.
A lateral moraine band on Mount Waesche, a volcanic nunatak in Marie Byrd Land, provides estimates of past ice sheet surface elevations in West Antarctica. Helium-3 and chlorine-36 surface exposure ages indicate that the proximal part of the moraine, up to 45 meters above the present ice surface, was deposited about 10,000 years ago, substantially later than the maximum ice extent in the Ross E...
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The dynamics of ocean-terminating outlet glaciers are an important component of ice-sheet mass balance. Using satellite imagery for the past 40 years, we compile an approximately decadal record of outlet-glacier terminus position change around the entire East Antarctic Ice Sheet (EAIS) marine margin. We find that most outlet glaciers retreated during the period 1974-1990, before switching to ad...
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We have conducted airborne measurements over the Greenland ice sheet from the NASA P-3B aircraft using a 150MHz coherent radar depth sounder to obtain extensive ice sheet thickness measurements. Simultaneous measurements of ice sheet elevation were also made using a laser altimeter. In outlet glacier areas along the ice sheet margin, the ice surface is characterized by a very rough, crevassed s...
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The dual-frequency altimeter of Topex allows since few years the observations of earth from 62°N to 62°S both in Ku and in C band. Previous works has been already performed above continental areas by [1, 2, 3, 4] and above the southern part of the Greenland ice sheet [5, 6]. These works show the great interest of a dual-frequency above both for the retrieval of some geophysical parameters and f...
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The Dome-C region, in the East Antarctic Plateau, is regarded as an ideal natural laboratory for calibration/validation of space-borne microwave radiometers. At L-band, the thermal stability of this region has been confirmed by several experimental campaigns. However, its use as an independent external calibration target has recently been questioned due to some spatial inhomogeneities and seaso...
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ژورنال
عنوان ژورنال: Annals of Glaciology
سال: 1998
ISSN: 0260-3055,1727-5644
DOI: 10.3189/1998aog27-1-125-129