L-Band Brightness Temperature Variations at Dome C and Snow Metamorphism at the Surface
The Antarctic Plateau is a promising site to monitor microwave radiometers' drift, and to inter-calibrate microwave radiometers, especially 1.4 GigaHertz (L-band) radiometers on board the Soil Moisture and Ocean Salinity (SMOS), and AquariusSAC-D missions. The Plateau is a thick ice cover, ther...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20140017807 2023-05-15T13:33:56+02:00 L-Band Brightness Temperature Variations at Dome C and Snow Metamorphism at the Surface Champollion, Nicolas Dinnat, Emmanuel Picard, Ghislain Brucker, Ludovic Unclassified, Unlimited, Publicly available July 13, 2014 application/pdf http://hdl.handle.net/2060/20140017807 unknown Document ID: 20140017807 http://hdl.handle.net/2060/20140017807 Copyright, Distribution under U.S. Government purpose rights CASI Earth Resources and Remote Sensing Geophysics GSFC-E-DAA-TN15158 Canadian Symposium on Remote Sensing (CSRS); 13-18 Jul. 2014; Quebec, Canada; United States|International Geoscience and Remote Sensing Symposium (IGARSS 2014); 13-18 Jul. 2014; Quebec, Canada; United States 2014 ftnasantrs 2019-07-21T00:20:28Z The Antarctic Plateau is a promising site to monitor microwave radiometers' drift, and to inter-calibrate microwave radiometers, especially 1.4 GigaHertz (L-band) radiometers on board the Soil Moisture and Ocean Salinity (SMOS), and AquariusSAC-D missions. The Plateau is a thick ice cover, thermally stable in depth, with large dimensions, and relatively low heterogeneities. In addition, its high latitude location in the Southern Hemisphere enables frequent observations by polar-orbiting satellites, and no contaminations by radio frequency interference. At Dome C (75S, 123E), on the Antarctic Plateau, the substantial amount of in-situ snow measurements available allows us to interpret variations in space-borne microwave brightness temperature (TB) (e.g. Macelloni et al., 2007, 2013, Brucker et al., 2011, Champollion et al., 2013). However, to analyze the observations from the Aquarius radiometers, whose sensitivity is 0.15 K, the stability of the snow layers near the surface that are most susceptible to rapidly change needs to be precisely assessed. This study focuses on the spatial and temporal variations of the Aquarius TB over the Antarctic Plateau, and at Dome C in particular, to highlight the impact of snow surface metamorphism on the TB observations at L-band. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic The Antarctic |
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Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Earth Resources and Remote Sensing Geophysics |
spellingShingle |
Earth Resources and Remote Sensing Geophysics Champollion, Nicolas Dinnat, Emmanuel Picard, Ghislain Brucker, Ludovic L-Band Brightness Temperature Variations at Dome C and Snow Metamorphism at the Surface |
topic_facet |
Earth Resources and Remote Sensing Geophysics |
description |
The Antarctic Plateau is a promising site to monitor microwave radiometers' drift, and to inter-calibrate microwave radiometers, especially 1.4 GigaHertz (L-band) radiometers on board the Soil Moisture and Ocean Salinity (SMOS), and AquariusSAC-D missions. The Plateau is a thick ice cover, thermally stable in depth, with large dimensions, and relatively low heterogeneities. In addition, its high latitude location in the Southern Hemisphere enables frequent observations by polar-orbiting satellites, and no contaminations by radio frequency interference. At Dome C (75S, 123E), on the Antarctic Plateau, the substantial amount of in-situ snow measurements available allows us to interpret variations in space-borne microwave brightness temperature (TB) (e.g. Macelloni et al., 2007, 2013, Brucker et al., 2011, Champollion et al., 2013). However, to analyze the observations from the Aquarius radiometers, whose sensitivity is 0.15 K, the stability of the snow layers near the surface that are most susceptible to rapidly change needs to be precisely assessed. This study focuses on the spatial and temporal variations of the Aquarius TB over the Antarctic Plateau, and at Dome C in particular, to highlight the impact of snow surface metamorphism on the TB observations at L-band. |
format |
Other/Unknown Material |
author |
Champollion, Nicolas Dinnat, Emmanuel Picard, Ghislain Brucker, Ludovic |
author_facet |
Champollion, Nicolas Dinnat, Emmanuel Picard, Ghislain Brucker, Ludovic |
author_sort |
Champollion, Nicolas |
title |
L-Band Brightness Temperature Variations at Dome C and Snow Metamorphism at the Surface |
title_short |
L-Band Brightness Temperature Variations at Dome C and Snow Metamorphism at the Surface |
title_full |
L-Band Brightness Temperature Variations at Dome C and Snow Metamorphism at the Surface |
title_fullStr |
L-Band Brightness Temperature Variations at Dome C and Snow Metamorphism at the Surface |
title_full_unstemmed |
L-Band Brightness Temperature Variations at Dome C and Snow Metamorphism at the Surface |
title_sort |
l-band brightness temperature variations at dome c and snow metamorphism at the surface |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20140017807 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
CASI |
op_relation |
Document ID: 20140017807 http://hdl.handle.net/2060/20140017807 |
op_rights |
Copyright, Distribution under U.S. Government purpose rights |
_version_ |
1766047204442636288 |