Antarctic Surface and Subsurface Snow and Ice Melt Fluxes
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 ...
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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 کاملChemistry of Antarctic Snow and Ice
We have studied 1000 samples of snow and ice from East and West Antarctica (coastal as well as central areas). These samples cover different time periods ua to 30,900 y$ars+$.P+. 1% the-meltwaterl we have measured major ions (i.e. Na, NH4 , K , Ca , Mg , H , C1 , NO3 , and SO4 ) using stringent contamination free tehniques. A very close balance between anions and cations is observed, making it ...
متن کاملSnow on Antarctic Sea Ice
Snow on Antarctic sea ice plays a complex and highly variable role in air-sea-ice interaction processes and the Earth’s climate system. Using data collected mostly during the past 10 years, this paper reviews the following topics: snow thickness and snow type and their geographical and seasonal variations; snow grain size, density, and salinity; frequency of occurrence of slush; thermal conduct...
متن کاملHCHO in Antarctic snow: Preservation in ice cores and air-snow exchange
[1] Formaldehyde (HCHO) measurements in snow and shallow firn at three Antarctic sites gave concentrations around 6 ppbw in surface snow and 1 ppbw and lower below 1–2 m depth. The variable concentration patterns in shallow snow and firn result from temperature-dependent uptake and release of HCHO in response to annual temperature cycles. Deeper concentrations are constant with depth, and appar...
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ژورنال
عنوان ژورنال: Journal of Climate
سال: 2005
ISSN: 1520-0442,0894-8755
DOI: 10.1175/jcli3344.1