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dc.contributor.author
Defer, Eric
dc.contributor.author
Galligani, Victoria Sol
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dc.contributor.author
Prigent, Catherine
dc.contributor.author
Jimenez, Carlos
dc.date.available
2017-06-08T20:15:16Z
dc.date.issued
2014-11
dc.identifier.citation
Defer, Eric; Galligani, Victoria Sol; Prigent, Catherine; Jimenez, Carlos; First observations of polarized scattering over ice clouds at close-to-millimeter wavelengths (157 GHz) with MADRAS on board the Megha-Tropiques mission; American Geophysical Union; Journal Of Geophysical Research; 119; 21; 11-2014; 12301–1216
dc.identifier.issn
0148-0227
dc.identifier.uri
http://hdl.handle.net/11336/17816
dc.description.abstract
Polarized scattering by frozen hydrometeors is investigated for the first time up to 157 GHz, based on the passive microwave observations of the Microwave Analysis and Detection of Rain and Atmospheric Structures (MADRAS) instrument on board the Indo-French Megha-Tropiques satellite mission. A comparison with time-coincident Tropical Rainfall Measurement Mission Microwave Imager records confirms the consistency of the coincident observations collected independently by the two instruments up to 89 GHz. The MADRAS noise levels of 1.2 K at 89 GHz and of 2.5 K at 157 GHz are in agreement with the required specifications of the mission. Compared to the 89 GHz polarized channels that mainly sense large ice particles (snow and graupel), the 157 GHz polarized channel is sensitive to smaller particles and provides additional information on the cloud systems. The analysis of the radiometric signal at 157 GHz reveals that the ice scattering can induce a polarization difference of the order of 10 K at that frequency. Based on radiative transfer modeling the specific signature is interpreted as the effect of mainly horizontally oriented ice cloud particles. This suggests that the effects of the cloud particle orientation should be considered in rain and cloud retrievals using passive radiometry at microwave and millimeter wavelengths.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Geophysical Union
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Clouds And Aerosols
dc.subject
Instruments And Techniques
dc.subject
Radiative Processes
dc.subject
Remote Sensing
dc.subject.classification
Meteorología y Ciencias Atmosféricas
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
First observations of polarized scattering over ice clouds at close-to-millimeter wavelengths (157 GHz) with MADRAS on board the Megha-Tropiques mission
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-06-07T20:45:09Z
dc.journal.volume
119
dc.journal.number
21
dc.journal.pagination
12301–1216
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Massachusetts
dc.description.fil
Fil: Defer, Eric. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Galligani, Victoria Sol. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Prigent, Catherine. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Jimenez, Carlos. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.journal.title
Journal Of Geophysical Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/2014JD022353
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/2014JD022353/abstract
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