Retrieval of surface emissivity of sea ice and temperature profiles over sea ice from passive microwave radiometers
Sea ice, surface emissivity, emitting layer temperature, temperature profile, microwave radiometry. - Polar regions play a key role in the global climate. The information on atmospheric parameters in these regions is sparse. Among the polar surfaces, sea ice varies in extent and physical properties...
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Niedersächsische Staats- und Universitätsbibliothek
2007
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Online Access: | http://webdoc.sub.gwdg.de/ebook/dissts/Bremen/Mathew2007.pdf http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000108511 http://elib.suub.uni-bremen.de/diss/docs/00010851.pdf http://d-nb.info/997387483/34 |
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ftgbv:oai:gbv.de:opac-de-7:ppn:550930043 2023-05-15T14:59:48+02:00 Retrieval of surface emissivity of sea ice and temperature profiles over sea ice from passive microwave radiometers Mathew, Nizy Nordpolarmeer 2007 electronic Elektronische Ressource electronic resource remote Online-Ressource http://webdoc.sub.gwdg.de/ebook/dissts/Bremen/Mathew2007.pdf http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000108511 http://elib.suub.uni-bremen.de/diss/docs/00010851.pdf http://d-nb.info/997387483/34 eng eng Niedersächsische Staats- und Universitätsbibliothek Staats- und Universitätsbibliothek [Host] Meeresoberfläche Temperaturverteilung Meereis Emissionsvermögen Mikrowellenradiometrie 550 geo ggo 2007 ftgbv 2016-07-24T22:14:44Z Sea ice, surface emissivity, emitting layer temperature, temperature profile, microwave radiometry. - Polar regions play a key role in the global climate. The information on atmospheric parameters in these regions is sparse. Among the polar surfaces, sea ice varies in extent and physical properties with region and season and so does the surface emissivity. In the present study a method to retrieve the emissivity is applied over two selected regions in the Arctic, one covered by first-year ice and the other by multiyear ice and it investigates the application of them in the improvement of temperature profile retrieval ver sea ice. The retrieval of surface emissivity is done by combining simulated brightness temperatures with the satellite measured brightness temperature. In order to determine the surface emissivity of sea ice, the observations of the microwave instruments amsu (Advanced Microwave Sounding Unit) and amsr-e (Advanced Microwave Scanning Radiometer- Earth Observing System) are used. Determination of emissivity requires the knowledge of the temperature of the emitting layer. The penetration depth of microwaves in sea ice varies between millimeters and decimeters depending on the frequency and micro-physical structure. A year-round observation of temperature profiles of sea ice from the Surface Heat Budget of the Arctic Ocean (sheba) campaign at a first-year and a multiyear ice site is used to derive a set of coefficients a and b to linearly relate . Univ., Diss.--Bremen, 2007 Online edition 2007 Online-Ausg.: |2007|||||||||| Other/Unknown Material Arctic Arctic Ocean Nordpol* Nordpolarmeer Sea ice Surface Heat Budget of the Arctic Ocean Georg-August-Universität Göttingen: GOEDOC Arctic Arctic Ocean |
institution |
Open Polar |
collection |
Georg-August-Universität Göttingen: GOEDOC |
op_collection_id |
ftgbv |
language |
English |
topic |
Meeresoberfläche Temperaturverteilung Meereis Emissionsvermögen Mikrowellenradiometrie 550 geo ggo |
spellingShingle |
Meeresoberfläche Temperaturverteilung Meereis Emissionsvermögen Mikrowellenradiometrie 550 geo ggo Retrieval of surface emissivity of sea ice and temperature profiles over sea ice from passive microwave radiometers |
topic_facet |
Meeresoberfläche Temperaturverteilung Meereis Emissionsvermögen Mikrowellenradiometrie 550 geo ggo |
description |
Sea ice, surface emissivity, emitting layer temperature, temperature profile, microwave radiometry. - Polar regions play a key role in the global climate. The information on atmospheric parameters in these regions is sparse. Among the polar surfaces, sea ice varies in extent and physical properties with region and season and so does the surface emissivity. In the present study a method to retrieve the emissivity is applied over two selected regions in the Arctic, one covered by first-year ice and the other by multiyear ice and it investigates the application of them in the improvement of temperature profile retrieval ver sea ice. The retrieval of surface emissivity is done by combining simulated brightness temperatures with the satellite measured brightness temperature. In order to determine the surface emissivity of sea ice, the observations of the microwave instruments amsu (Advanced Microwave Sounding Unit) and amsr-e (Advanced Microwave Scanning Radiometer- Earth Observing System) are used. Determination of emissivity requires the knowledge of the temperature of the emitting layer. The penetration depth of microwaves in sea ice varies between millimeters and decimeters depending on the frequency and micro-physical structure. A year-round observation of temperature profiles of sea ice from the Surface Heat Budget of the Arctic Ocean (sheba) campaign at a first-year and a multiyear ice site is used to derive a set of coefficients a and b to linearly relate . Univ., Diss.--Bremen, 2007 Online edition 2007 Online-Ausg.: |2007|||||||||| |
author2 |
Mathew, Nizy |
title |
Retrieval of surface emissivity of sea ice and temperature profiles over sea ice from passive microwave radiometers |
title_short |
Retrieval of surface emissivity of sea ice and temperature profiles over sea ice from passive microwave radiometers |
title_full |
Retrieval of surface emissivity of sea ice and temperature profiles over sea ice from passive microwave radiometers |
title_fullStr |
Retrieval of surface emissivity of sea ice and temperature profiles over sea ice from passive microwave radiometers |
title_full_unstemmed |
Retrieval of surface emissivity of sea ice and temperature profiles over sea ice from passive microwave radiometers |
title_sort |
retrieval of surface emissivity of sea ice and temperature profiles over sea ice from passive microwave radiometers |
publisher |
Niedersächsische Staats- und Universitätsbibliothek |
publishDate |
2007 |
url |
http://webdoc.sub.gwdg.de/ebook/dissts/Bremen/Mathew2007.pdf http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000108511 http://elib.suub.uni-bremen.de/diss/docs/00010851.pdf http://d-nb.info/997387483/34 |
op_coverage |
Nordpolarmeer |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Nordpol* Nordpolarmeer Sea ice Surface Heat Budget of the Arctic Ocean |
genre_facet |
Arctic Arctic Ocean Nordpol* Nordpolarmeer Sea ice Surface Heat Budget of the Arctic Ocean |
_version_ |
1766331919940714496 |