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Using S-band dual polarized radar for convective/stratiform rain indexing and the correspondence with AMSR-E GSFC profiling algorithm

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Title: Using S-band dual polarized radar for convective/stratiform rain indexing and the correspondence with AMSR-E GSFC profiling algorithm
Authors: Islam, Tanvir tanvir.islam@bristol.ac.uk, Rico-Ramirez, Miguel A.1, Han, Dawei1, Srivastava, Prashant K.1
Source: Advances in Space Research. Nov2012, Vol. 50 Issue 10, p1383-1390. 8p.
Subjects: Convective clouds, Earth Observing System (Program), Optical polarization, Radar, Microwave remote sensing, Meteorological precipitation, Algorithms
Abstract: Abstract: The separation of rain types in convective and stratiform regimes has long been a goal in microwave remote sensing of precipitation research. In this essence, a dual polarized radar based indexing scheme that provides information on convective and stratiform (C/S) rain regimes has been presented in correspondence with advanced microwave scanning radiometer – earth observing system (AMSR-E) GSFC profiling algorithm estimate of convective rain percentage. The dual polarized radar based C/S indexing scheme first retrieves the normalized gamma drop size distribution parameters, median volume drop diameter (D0 ) and concentration parameter (Nw ), from dual polarized radar measurements ZH and ZDR , representing reflectivity and differential reflectivity respectively, by means of the genetic programming approach. Next, the C/S rain index is calculated based on the formulation of an empirical relation in Nw –D0 domain. The scheme has been inspected and applied on measurements from the S-band Chilbolton dual polarized radar. A considerable number of “coincident” cases from the radar and the AMSR-E observations are investigated. It has been revealed that the dual polarized radar based C/S rain indexing is in a similar pattern with the AMSR-E GSFC profiling algorithm estimate of convective rain percentage. Generally, as C/S rain index value increases, which signifies a stratiform to convective trend, the AMSR-E convective rain percentage also increases. [Copyright &y& Elsevier]
Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 80182431
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  Label: Title
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  Data: Using S-band dual polarized radar for convective/stratiform rain indexing and the correspondence with AMSR-E GSFC profiling algorithm
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  Data: <searchLink fieldCode="AR" term="%22Islam%2C+Tanvir%22">Islam, Tanvir</searchLink><i> tanvir.islam@bristol.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Rico-Ramirez%2C+Miguel+A%2E%22">Rico-Ramirez, Miguel A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Han%2C+Dawei%22">Han, Dawei</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Srivastava%2C+Prashant+K%2E%22">Srivastava, Prashant K.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Advances+in+Space+Research%22">Advances in Space Research</searchLink>. Nov2012, Vol. 50 Issue 10, p1383-1390. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Convective+clouds%22">Convective clouds</searchLink><br /><searchLink fieldCode="DE" term="%22Earth+Observing+System+%28Program%29%22">Earth Observing System (Program)</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+polarization%22">Optical polarization</searchLink><br /><searchLink fieldCode="DE" term="%22Radar%22">Radar</searchLink><br /><searchLink fieldCode="DE" term="%22Microwave+remote+sensing%22">Microwave remote sensing</searchLink><br /><searchLink fieldCode="DE" term="%22Meteorological+precipitation%22">Meteorological precipitation</searchLink><br /><searchLink fieldCode="DE" term="%22Algorithms%22">Algorithms</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: The separation of rain types in convective and stratiform regimes has long been a goal in microwave remote sensing of precipitation research. In this essence, a dual polarized radar based indexing scheme that provides information on convective and stratiform (C/S) rain regimes has been presented in correspondence with advanced microwave scanning radiometer – earth observing system (AMSR-E) GSFC profiling algorithm estimate of convective rain percentage. The dual polarized radar based C/S indexing scheme first retrieves the normalized gamma drop size distribution parameters, median volume drop diameter (D0 ) and concentration parameter (Nw ), from dual polarized radar measurements ZH and ZDR , representing reflectivity and differential reflectivity respectively, by means of the genetic programming approach. Next, the C/S rain index is calculated based on the formulation of an empirical relation in Nw –D0 domain. The scheme has been inspected and applied on measurements from the S-band Chilbolton dual polarized radar. A considerable number of “coincident” cases from the radar and the AMSR-E observations are investigated. It has been revealed that the dual polarized radar based C/S rain indexing is in a similar pattern with the AMSR-E GSFC profiling algorithm estimate of convective rain percentage. Generally, as C/S rain index value increases, which signifies a stratiform to convective trend, the AMSR-E convective rain percentage also increases. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.asr.2012.07.011
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        Text: English
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        Type: general
      – SubjectFull: Earth Observing System (Program)
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      – SubjectFull: Optical polarization
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      – SubjectFull: Radar
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      – SubjectFull: Microwave remote sensing
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      – SubjectFull: Meteorological precipitation
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      – SubjectFull: Algorithms
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      – TitleFull: Using S-band dual polarized radar for convective/stratiform rain indexing and the correspondence with AMSR-E GSFC profiling algorithm
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            NameFull: Islam, Tanvir
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              Text: Nov2012
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              Y: 2012
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