SMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission
The circumpolar northern colder climate zone (boreal zone/tundra) is covered by pronounced organic soils. Due to above-average rising temperatures in the higher northern latitudes, a large amount of these important carbon sinks might be released, possibly causing a significant positive feedback on g...
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ftinraparis:oai:prodinra.inra.fr:282157 2023-05-15T18:20:19+02:00 SMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission Bircher, Simone Wigneron, Jean-Pierre Demontoux, François Scwhank, Mike Jonard, François Razafindratsima, Stephen Mironov, Valery Richaume, Philippe Mialon, Arnaud Weihermüller, Lutz Rautiainen, Kimmo Pulliainen, Jouni Jensen, Karsten Høgh Kerr, Yann 2014 application/pdf http://prodinra.inra.fr/ft/A6CD33BE-12C6-4D08-84CF-CE7FA1005E24 http://prodinra.inra.fr/record/282157 eng eng http://creativecommons.org/licenses/by-nd-nc/1.0/ CC-BY-ND-NC IGARSS 2014, International Geoscience and Remote Sensing Symposium , Québec, CAN, 2014-07-13-2014-07-18 Sciences de la Terre Earth Sciences Traitement du signal et de l'image Signal and Image processing Milieux et Changements globaux SMOSHiLat organic soil moisture;radiometer L Band dielectric constants PAPER 2014 ftinraparis 2015-10-30T07:13:26Z The circumpolar northern colder climate zone (boreal zone/tundra) is covered by pronounced organic soils. Due to above-average rising temperatures in the higher northern latitudes, a large amount of these important carbon sinks might be released, possibly causing a significant positive feedback on global warming. Thus, there is a strong need to monitor hydrologic processes in these regions. The ESA's Soil Moisture and Ocean Salinity (SMOS) mission carries the first space-borne passive L-band microwave (1.4 GHz) radiometer on board. It acquires global brightness temperatures (TB) from which surface soil moisture is retrieved, taking advantage of the very large difference between the dielectric constant of dry soil and water at this frequency. The retrieval algorithm is based on the L-band Microwave Emission of the Biosphere (L-MEB) model which uses tuning parameters derived from study sites in dry and warm temperate climate zones. In order to improve our understanding of L-band emissions of organic soil surface layers and thus, supporting the quality of SMOS data in the northern colder climate zone the SMOSHiLat project has been evoked in the framework of ESA's Changing Earth Science Network. It aims at creating a database including L-band TBs and dielectric constant values of soils, mainly from two northern study sites in Sodankylä, Finland (Finnish Meteorological Institue, FMI), and Gludsted, Denmark (Hydrologic OBsErvatory, HOBE). Based on this database the L-MEB model is adapted for organic soils encountered in Northern regions and tested in the SMOS soil moisture prototype retrieval algorithm in view of its implementation in the operational one. Report Sodankylä Tundra Institut National de la Recherche Agronomique: ProdINRA Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) |
institution |
Open Polar |
collection |
Institut National de la Recherche Agronomique: ProdINRA |
op_collection_id |
ftinraparis |
language |
English |
topic |
Sciences de la Terre Earth Sciences Traitement du signal et de l'image Signal and Image processing Milieux et Changements globaux SMOSHiLat organic soil moisture;radiometer L Band dielectric constants |
spellingShingle |
Sciences de la Terre Earth Sciences Traitement du signal et de l'image Signal and Image processing Milieux et Changements globaux SMOSHiLat organic soil moisture;radiometer L Band dielectric constants Bircher, Simone Wigneron, Jean-Pierre Demontoux, François Scwhank, Mike Jonard, François Razafindratsima, Stephen Mironov, Valery Richaume, Philippe Mialon, Arnaud Weihermüller, Lutz Rautiainen, Kimmo Pulliainen, Jouni Jensen, Karsten Høgh Kerr, Yann SMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission |
topic_facet |
Sciences de la Terre Earth Sciences Traitement du signal et de l'image Signal and Image processing Milieux et Changements globaux SMOSHiLat organic soil moisture;radiometer L Band dielectric constants |
description |
The circumpolar northern colder climate zone (boreal zone/tundra) is covered by pronounced organic soils. Due to above-average rising temperatures in the higher northern latitudes, a large amount of these important carbon sinks might be released, possibly causing a significant positive feedback on global warming. Thus, there is a strong need to monitor hydrologic processes in these regions. The ESA's Soil Moisture and Ocean Salinity (SMOS) mission carries the first space-borne passive L-band microwave (1.4 GHz) radiometer on board. It acquires global brightness temperatures (TB) from which surface soil moisture is retrieved, taking advantage of the very large difference between the dielectric constant of dry soil and water at this frequency. The retrieval algorithm is based on the L-band Microwave Emission of the Biosphere (L-MEB) model which uses tuning parameters derived from study sites in dry and warm temperate climate zones. In order to improve our understanding of L-band emissions of organic soil surface layers and thus, supporting the quality of SMOS data in the northern colder climate zone the SMOSHiLat project has been evoked in the framework of ESA's Changing Earth Science Network. It aims at creating a database including L-band TBs and dielectric constant values of soils, mainly from two northern study sites in Sodankylä, Finland (Finnish Meteorological Institue, FMI), and Gludsted, Denmark (Hydrologic OBsErvatory, HOBE). Based on this database the L-MEB model is adapted for organic soils encountered in Northern regions and tested in the SMOS soil moisture prototype retrieval algorithm in view of its implementation in the operational one. |
format |
Report |
author |
Bircher, Simone Wigneron, Jean-Pierre Demontoux, François Scwhank, Mike Jonard, François Razafindratsima, Stephen Mironov, Valery Richaume, Philippe Mialon, Arnaud Weihermüller, Lutz Rautiainen, Kimmo Pulliainen, Jouni Jensen, Karsten Høgh Kerr, Yann |
author_facet |
Bircher, Simone Wigneron, Jean-Pierre Demontoux, François Scwhank, Mike Jonard, François Razafindratsima, Stephen Mironov, Valery Richaume, Philippe Mialon, Arnaud Weihermüller, Lutz Rautiainen, Kimmo Pulliainen, Jouni Jensen, Karsten Høgh Kerr, Yann |
author_sort |
Bircher, Simone |
title |
SMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission |
title_short |
SMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission |
title_full |
SMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission |
title_fullStr |
SMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission |
title_full_unstemmed |
SMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission |
title_sort |
smoshilat - microwave l-band emission from organic-rich soils in the northern cold climate zone in the framework of the smos mission |
publishDate |
2014 |
url |
http://prodinra.inra.fr/ft/A6CD33BE-12C6-4D08-84CF-CE7FA1005E24 http://prodinra.inra.fr/record/282157 |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Sodankylä |
geographic_facet |
Sodankylä |
genre |
Sodankylä Tundra |
genre_facet |
Sodankylä Tundra |
op_source |
IGARSS 2014, International Geoscience and Remote Sensing Symposium , Québec, CAN, 2014-07-13-2014-07-18 |
op_rights |
http://creativecommons.org/licenses/by-nd-nc/1.0/ |
op_rightsnorm |
CC-BY-ND-NC |
_version_ |
1766197835302174720 |