GPM-Derived Climatology of Attenuation Due to Clouds and Precipitation at Ka-Band
Attenuation from clouds and precipitation hinders the use of Ka-band in SARs, radar altimeters and in satellite link communications. The NASA-JAXA Global Precipitation Measurement (GPM) mission, with its core satellite payload including a dual-frequency (13.6 and 35.5 GHz) radar and a multifrequency...
Published in: | IEEE Transactions on Geoscience and Remote Sensing |
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Online Access: | http://hdl.handle.net/11583/2807842 https://doi.org/10.1109/TGRS.2019.2949052 |
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ftpoltorinoiris:oai:iris.polito.it:11583/2807842 2024-04-14T08:15:55+00:00 GPM-Derived Climatology of Attenuation Due to Clouds and Precipitation at Ka-Band Battaglia, Alessandro Mroz, Kamil Watters, Daniel Ardhuin, Fabrice Battaglia, Alessandro Mroz, Kamil Watters, Daniel Ardhuin, Fabrice 2019 STAMPA http://hdl.handle.net/11583/2807842 https://doi.org/10.1109/TGRS.2019.2949052 eng eng IEEE info:eu-repo/semantics/altIdentifier/wos/WOS:000519598700022 volume:58 issue:3 firstpage:1812 lastpage:1820 numberofpages:9 journal:IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING http://hdl.handle.net/11583/2807842 doi:10.1109/TGRS.2019.2949052 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85080956930 info:eu-repo/semantics/openAccess info:eu-repo/semantics/article 2019 ftpoltorinoiris https://doi.org/10.1109/TGRS.2019.2949052 2024-03-21T16:29:58Z Attenuation from clouds and precipitation hinders the use of Ka-band in SARs, radar altimeters and in satellite link communications. The NASA-JAXA Global Precipitation Measurement (GPM) mission, with its core satellite payload including a dual-frequency (13.6 and 35.5 GHz) radar and a multifrequency passive microwave radiometer, offers an unprecedented opportunity for better quantifying such attenuation effects. Based on four years of GPM products, this article presents a global climatology of Ka-band attenuation caused by clouds and precipitation and analyses the impact of the precipitation diurnal cycle. As expected, regions of high attenuation mirror precipitation patterns. Clouds and precipitation cause two-way attenuation at 35.5 GHz in excess of 3 dB about 1.5% of the time in the regions below 65°, peaking at as much as 10% in the tropical rain belt and the South Pacific Convergence Zone and at circa 5% along the storm tracks of the North Atlantic and Pacific Oceans. Confirming previous findings, the diurnal cycle is particularly strong over the land and during the summer period; while over the ocean, the diurnal cycle is generally weaker some coherent features emerge in the tropical oceans and in the northern hemisphere. Results are useful for estimating data loss from (sun-synchronous) satellite adopting active instruments/links at a frequency close to 35 GHz. Article in Journal/Newspaper North Atlantic PORTO@iris (Publications Open Repository TOrino - Politecnico di Torino) Pacific IEEE Transactions on Geoscience and Remote Sensing 58 3 1812 1820 |
institution |
Open Polar |
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PORTO@iris (Publications Open Repository TOrino - Politecnico di Torino) |
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ftpoltorinoiris |
language |
English |
description |
Attenuation from clouds and precipitation hinders the use of Ka-band in SARs, radar altimeters and in satellite link communications. The NASA-JAXA Global Precipitation Measurement (GPM) mission, with its core satellite payload including a dual-frequency (13.6 and 35.5 GHz) radar and a multifrequency passive microwave radiometer, offers an unprecedented opportunity for better quantifying such attenuation effects. Based on four years of GPM products, this article presents a global climatology of Ka-band attenuation caused by clouds and precipitation and analyses the impact of the precipitation diurnal cycle. As expected, regions of high attenuation mirror precipitation patterns. Clouds and precipitation cause two-way attenuation at 35.5 GHz in excess of 3 dB about 1.5% of the time in the regions below 65°, peaking at as much as 10% in the tropical rain belt and the South Pacific Convergence Zone and at circa 5% along the storm tracks of the North Atlantic and Pacific Oceans. Confirming previous findings, the diurnal cycle is particularly strong over the land and during the summer period; while over the ocean, the diurnal cycle is generally weaker some coherent features emerge in the tropical oceans and in the northern hemisphere. Results are useful for estimating data loss from (sun-synchronous) satellite adopting active instruments/links at a frequency close to 35 GHz. |
author2 |
Battaglia, Alessandro Mroz, Kamil Watters, Daniel Ardhuin, Fabrice |
format |
Article in Journal/Newspaper |
author |
Battaglia, Alessandro Mroz, Kamil Watters, Daniel Ardhuin, Fabrice |
spellingShingle |
Battaglia, Alessandro Mroz, Kamil Watters, Daniel Ardhuin, Fabrice GPM-Derived Climatology of Attenuation Due to Clouds and Precipitation at Ka-Band |
author_facet |
Battaglia, Alessandro Mroz, Kamil Watters, Daniel Ardhuin, Fabrice |
author_sort |
Battaglia, Alessandro |
title |
GPM-Derived Climatology of Attenuation Due to Clouds and Precipitation at Ka-Band |
title_short |
GPM-Derived Climatology of Attenuation Due to Clouds and Precipitation at Ka-Band |
title_full |
GPM-Derived Climatology of Attenuation Due to Clouds and Precipitation at Ka-Band |
title_fullStr |
GPM-Derived Climatology of Attenuation Due to Clouds and Precipitation at Ka-Band |
title_full_unstemmed |
GPM-Derived Climatology of Attenuation Due to Clouds and Precipitation at Ka-Band |
title_sort |
gpm-derived climatology of attenuation due to clouds and precipitation at ka-band |
publisher |
IEEE |
publishDate |
2019 |
url |
http://hdl.handle.net/11583/2807842 https://doi.org/10.1109/TGRS.2019.2949052 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000519598700022 volume:58 issue:3 firstpage:1812 lastpage:1820 numberofpages:9 journal:IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING http://hdl.handle.net/11583/2807842 doi:10.1109/TGRS.2019.2949052 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85080956930 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1109/TGRS.2019.2949052 |
container_title |
IEEE Transactions on Geoscience and Remote Sensing |
container_volume |
58 |
container_issue |
3 |
container_start_page |
1812 |
op_container_end_page |
1820 |
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