Characterization of rain microphysics based on disdrometer and polarimetric radar observations

被引:3
作者
Cao, Qing [1 ]
Zhang, Guifu [1 ]
Schuur, Terry [2 ]
Ryzhkov, Alexander [2 ]
Brandes, Edward [3 ]
Ikeda, Kyoko [3 ]
机构
[1] Univ Oklahoma, Sch Meteorol, Norman, OK 73019 USA
[2] Natl Severe Storms Lab, Norman, OK 73019 USA
[3] Natl Ctr Atmospher Res, Boulder, CO 80301 USA
来源
2006 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-8 | 2006年
关键词
disdrometer; drop size distribution; sampling error; fitting; radar retrieval;
D O I
10.1109/IGARSS.2006.139
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
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.
引用
收藏
页码:523 / +
页数:3
相关论文
共 21 条
[1]  
Brandes EA, 2004, J ATMOS OCEAN TECH, V21, P584, DOI 10.1175/1520-0426(2004)021<0584:COPRDS>2.0.CO
[2]  
2
[3]  
Brandes EA, 2004, J APPL METEOROL, V43, P461, DOI 10.1175/1520-0450(2004)043<0461:DSDRWP>2.0.CO
[4]  
2
[5]  
BRANDES EA, 2005, P 32 C RAD MET
[6]   SAMPLING ERRORS IN MEASUREMENT OF RAIN AND HAIL PARAMETERS [J].
GERTZMAN, HS ;
ATLAS, D .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS AND ATMOSPHERES, 1977, 82 (31) :4955-4966
[7]  
Jameson AR, 1998, J ATMOS SCI, V55, P283, DOI 10.1175/1520-0469(1998)055<0283:FPOPPI>2.0.CO
[8]  
2
[9]  
Kostinski AB, 1997, J ATMOS SCI, V54, P2174, DOI 10.1175/1520-0469(1997)054<2174:FPOPPI>2.0.CO
[10]  
2