A validation study for GPS radio occultation data with moist thermodynamic structure of tropical cyclones
We exploit the cloud-penetrating capability and insensitivity to precipitation of the Global Positioning System radio occultation (GPSRO) technique to study the humidity environment of tropical cyclones (TCs). We focus in regions within and around the vicinity of TCs' eye, where infrared and mi...
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ftunivsthongkong:oai:repository.hkust.edu.hk:1783.1-120416 2023-05-15T17:34:56+02:00 A validation study for GPS radio occultation data with moist thermodynamic structure of tropical cyclones Vergados, Panagiotis Mannucci, Anthony J. Su, Hui 2013 https://repository.hkust.edu.hk/ir/Record/1783.1-120416 https://doi.org/10.1002/jgrd.50698 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2169-8996&rft.volume=118&rft.issue=16&rft.date=2013&rft.spage=9401&rft.aulast=Vergados&rft.aufirst=P.&rft.atitle=A+validation+study+for+GPS+radio+occultation+data+with+moist+thermodynamic+structure+of+tropical+cyclones&rft.title=Journal+of+Geophysical+Research+Atmospheres http://www.scopus.com/record/display.url?eid=2-s2.0-84885145746&origin=inward http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000324933900045 English eng Blackwell Publishing Ltd https://repository.hkust.edu.hk/ir/Record/1783.1-120416 Journal of Geophysical Research Atmospheres, v. 118, (16), August 2013, p. 9401-9413 2169-8996 2169-897X https://doi.org/10.1002/jgrd.50698 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2169-8996&rft.volume=118&rft.issue=16&rft.date=2013&rft.spage=9401&rft.aulast=Vergados&rft.aufirst=P.&rft.atitle=A+validation+study+for+GPS+radio+occultation+data+with+moist+thermodynamic+structure+of+tropical+cyclones&rft.title=Journal+of+Geophysical+Research+Atmospheres http://www.scopus.com/record/display.url?eid=2-s2.0-84885145746&origin=inward http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000324933900045 Article 2013 ftunivsthongkong https://doi.org/10.1002/jgrd.50698 2022-10-07T00:07:43Z We exploit the cloud-penetrating capability and insensitivity to precipitation of the Global Positioning System radio occultation (GPSRO) technique to study the humidity environment of tropical cyclones (TCs). We focus in regions within and around the vicinity of TCs' eye, where infrared and microwave observations are difficult to acquire due to cloudiness and heavy precipitation. We use data from the National Hurricane Center TC Best Tracks to identify the location of North Atlantic TCs. The Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) Data Analysis and Archive Center provides concurrent refractivity, temperature, and humidity measurements from the Challenging Minisatellite Payload and COSMIC missions and the European Centre for Medium-Range Weather Forecasts (ECMWF). The distribution of GPSRO-derived humidity profiles as functions of altitude and distance from the storms' center identifies a pronounced low-level inflow, characteristic of mature TCs, at distances between 50 and 90 km, which coincide with the area where the eyewall of TCs forms. We also capture wavelike structures resembling spiral rainbands beyond the eyewall. The distribution of water vapor as functions of altitude and TC intensity shows a decrease at all altitudes when a tropical system matures from a tropical depression to a Category 1 (Cat 1) hurricane. The water vapor gradually increases from Cat 2 to Cat 5 hurricanes - a result that is also identified in ECMWF data sets and Atmospheric Infrared Sounder observations. We conclude that GPSRO data can contribute significantly to the understanding and modeling of the vertical structures of TCs. © 2013. Her Majesty the Queen in Right of Canada. American Geophysical Union. Article in Journal/Newspaper North Atlantic The Hong Kong University of Science and Technology: HKUST Institutional Repository Canada Journal of Geophysical Research: Atmospheres 118 16 9401 9413 |
institution |
Open Polar |
collection |
The Hong Kong University of Science and Technology: HKUST Institutional Repository |
op_collection_id |
ftunivsthongkong |
language |
English |
description |
We exploit the cloud-penetrating capability and insensitivity to precipitation of the Global Positioning System radio occultation (GPSRO) technique to study the humidity environment of tropical cyclones (TCs). We focus in regions within and around the vicinity of TCs' eye, where infrared and microwave observations are difficult to acquire due to cloudiness and heavy precipitation. We use data from the National Hurricane Center TC Best Tracks to identify the location of North Atlantic TCs. The Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) Data Analysis and Archive Center provides concurrent refractivity, temperature, and humidity measurements from the Challenging Minisatellite Payload and COSMIC missions and the European Centre for Medium-Range Weather Forecasts (ECMWF). The distribution of GPSRO-derived humidity profiles as functions of altitude and distance from the storms' center identifies a pronounced low-level inflow, characteristic of mature TCs, at distances between 50 and 90 km, which coincide with the area where the eyewall of TCs forms. We also capture wavelike structures resembling spiral rainbands beyond the eyewall. The distribution of water vapor as functions of altitude and TC intensity shows a decrease at all altitudes when a tropical system matures from a tropical depression to a Category 1 (Cat 1) hurricane. The water vapor gradually increases from Cat 2 to Cat 5 hurricanes - a result that is also identified in ECMWF data sets and Atmospheric Infrared Sounder observations. We conclude that GPSRO data can contribute significantly to the understanding and modeling of the vertical structures of TCs. © 2013. Her Majesty the Queen in Right of Canada. American Geophysical Union. |
format |
Article in Journal/Newspaper |
author |
Vergados, Panagiotis Mannucci, Anthony J. Su, Hui |
spellingShingle |
Vergados, Panagiotis Mannucci, Anthony J. Su, Hui A validation study for GPS radio occultation data with moist thermodynamic structure of tropical cyclones |
author_facet |
Vergados, Panagiotis Mannucci, Anthony J. Su, Hui |
author_sort |
Vergados, Panagiotis |
title |
A validation study for GPS radio occultation data with moist thermodynamic structure of tropical cyclones |
title_short |
A validation study for GPS radio occultation data with moist thermodynamic structure of tropical cyclones |
title_full |
A validation study for GPS radio occultation data with moist thermodynamic structure of tropical cyclones |
title_fullStr |
A validation study for GPS radio occultation data with moist thermodynamic structure of tropical cyclones |
title_full_unstemmed |
A validation study for GPS radio occultation data with moist thermodynamic structure of tropical cyclones |
title_sort |
validation study for gps radio occultation data with moist thermodynamic structure of tropical cyclones |
publisher |
Blackwell Publishing Ltd |
publishDate |
2013 |
url |
https://repository.hkust.edu.hk/ir/Record/1783.1-120416 https://doi.org/10.1002/jgrd.50698 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2169-8996&rft.volume=118&rft.issue=16&rft.date=2013&rft.spage=9401&rft.aulast=Vergados&rft.aufirst=P.&rft.atitle=A+validation+study+for+GPS+radio+occultation+data+with+moist+thermodynamic+structure+of+tropical+cyclones&rft.title=Journal+of+Geophysical+Research+Atmospheres http://www.scopus.com/record/display.url?eid=2-s2.0-84885145746&origin=inward http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000324933900045 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://repository.hkust.edu.hk/ir/Record/1783.1-120416 Journal of Geophysical Research Atmospheres, v. 118, (16), August 2013, p. 9401-9413 2169-8996 2169-897X https://doi.org/10.1002/jgrd.50698 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2169-8996&rft.volume=118&rft.issue=16&rft.date=2013&rft.spage=9401&rft.aulast=Vergados&rft.aufirst=P.&rft.atitle=A+validation+study+for+GPS+radio+occultation+data+with+moist+thermodynamic+structure+of+tropical+cyclones&rft.title=Journal+of+Geophysical+Research+Atmospheres http://www.scopus.com/record/display.url?eid=2-s2.0-84885145746&origin=inward http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000324933900045 |
op_doi |
https://doi.org/10.1002/jgrd.50698 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
118 |
container_issue |
16 |
container_start_page |
9401 |
op_container_end_page |
9413 |
_version_ |
1766133932326125568 |