DocumentCode :
2853004
Title :
Characterization of Rain Microphysics based on Disdrometer and Polarimetric Radar Observations
Author :
Cao, Qing ; Zhang, Guifu ; Schuur, Terry ; Ryzhkov, Alexander ; Brandes, Edward ; Ikeda, Kyoko
Author_Institution :
Sch. of Meteorol., Univ. of Oklahoma, Norman, OK
fYear :
2006
fDate :
July 31 2006-Aug. 4 2006
Firstpage :
523
Lastpage :
528
Abstract :
Characterization of rain microphysics requires information on raindrop size distributions (DSDs). DSD measurements and retrievals, however, contain errors. In this paper, data from side-by-side disdrometer comparisons are presented to provide information that is not possible from single disdrometer measurements alone, allowing error effects to be quantified and a rain DSD model for radar retrieval to be improved. We also propose methods to mitigate sampling errors by filtering with sorting and averaging and by fitting to a Gamma DSD model with truncation and extrapolation. The Constrained- Gamma DSD model has thus been refined for the Southern Great Plains region of the United States.
Keywords :
atmospheric techniques; meteorological radar; radar polarimetry; rain; Southern Great Plains region; United States; disdrometer measurements; gamma DSD model; polarimetric radar observations; rain microphysics characterization; raindrop size distributions; sampling errors; Atmospheric measurements; Data analysis; Extrapolation; Instruments; Radar measurements; Radar polarimetry; Rain; Sampling methods; Size measurement; Sorting;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2006. IGARSS 2006. IEEE International Conference on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-9510-7
Type :
conf
DOI :
10.1109/IGARSS.2006.139
Filename :
4241286
Link To Document :
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