Interannual surface evolution of an Antarctic blue-ice moraine using multi-temporal DEMs
نویسندگان
چکیده
منابع مشابه
Seasonal to interannual variability in Antarctic sea-ice surface melt
Satellite remote sensing time-series images are used to illustrate the spatial and temporal variability in Antarctic-wide seaice surface melting during the austral summer. Combinations of collocated data from the Active Microwave Instrument on board the ERS-1/2 spacecraft, RadarSat Synthetic Aperture Radar (SAR) and SSM/I passive microwave radiometer are used in characterization of the effects ...
متن کاملSeasonal and Interannual Trends in Antarctic Ice Sheet Microwave Data
Time-series microwave satellite observations are used to investigate seasonal and interannual changes in the surface characteristics of the Antarctic ice sheet. Enhanced-resolution Cband ERS-1/2 scatterometer (ESCAT) backscatter and DMSP SSMI brightness temperature images of Antarctica, acquired on a 3-day interval between 1992 and 1997, have been analysed. Both ESCAT and SSMI data show a clear...
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The SeaWinds on QuikScat and ERS-1/2 scatterometers measure the radar response of the Earth’s surface with high spatialand temporal-resolution. The data collected by these space-borne active-microwave sensors are used to detect periods of surface melting in the Antarctic iceshelves. A description of a statistical melt-detection algorithm is given and the results are shown and compared to other ...
متن کاملEvolution of the early Antarctic ice ages.
Understanding the stability of the early Antarctic ice cap in the geological past is of societal interest because present-day atmospheric CO2 concentrations have reached values comparable to those estimated for the Oligocene and the Early Miocene epochs. Here we analyze a new high-resolution deep-sea oxygen isotope (δ18O) record from the South Atlantic Ocean spanning an interval between 30.1 My...
متن کاملAn emerging technique: multi-ice-core multi-parameter correlations with Antarctic sea-ice extent
Using results stemming from the International Trans-Antarctic Scientific Expedition (ITASE) ice-core array plus data from ice cores from the South Pole and Siple Dome we investigate the use of sodium (Na), non-sea-salt sulfate (nssSO4 ) and methylsulfonate (MS) as proxies for Antarctic sea-ice extent (SIE). Maximum and mean annual chemistry concentrations for these three species correlate signi...
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ژورنال
عنوان ژورنال: Earth Surface Dynamics
سال: 2016
ISSN: 2196-632X
DOI: 10.5194/esurf-4-515-2016