Evaluation of X-band polarimetric radar estimates of drop size distributions from coincident S-band Polarimetric estimates and measured raindrop spectra

M. N. Anagnostou, E. N. Anagnostou, G. Vulpiani, M. Montopoli, F. S. Marzano, J. Vivekanandan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Recent research has demonstrated the value of polarimetric measurements for the correction of rain-path attenuation at X-band radar frequency and the estimation of rain parameters including drop size distributions (DSD). The issue this study is concerned with is to what degree uncertainties in attenuation correction can affect the estimation of DSD. Since attenuation correction uncertainty enhances with rain path our hypothesis is that DSD retrieval uncertainty at X-band may deteriorate with range. In this study we evaluate the relative accuracy of X-band DSD retrieval against DSD estimates from S-band radar observations and in-situ disdrometer spectra. We present comparisons of various techniques for estimating DSD model parameters from attenuation- corrected X-band dual-polarization radar data. Coincident X-band (XPOL) and S-band (S-Pol) dual-polarized radar measurements from the International H 20 experiment (IHOP) as well as coincident X-band polarimetric radar (MP-X) measurements over disdrometer during a Typhoon storm case in Japan are used to assess the accuracy of the different DSD retrieval algorithms applied to X-band radar.

Original languageEnglish
Title of host publication2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007
Pages3575-3578
Number of pages4
DOIs
StatePublished - 2007
Event2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007 - Barcelona, Spain
Duration: Jun 23 2007Jun 28 2007

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)

Conference

Conference2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007
Country/TerritorySpain
CityBarcelona
Period06/23/0706/28/07

Keywords

  • Attenuation correciton
  • Drop size distribution retrievals
  • Polarimetric radar
  • S-band radar
  • X-band radar

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