张培昌,殷秀良,王振会. 2001. 小旋转椭球粒子群的微波衰减特性[J]. 气象学报, 59(2):226-233, doi:10.11676/qxxb2001.024
小旋转椭球粒子群的微波衰减特性
CHARACTERISTICS OF MICROWAVE ATTENUATION FOR GROUPS OF SMALL SPHEROID PARTICLES
投稿时间:1999-03-05  修订日期:2000-01-10
DOI:10.11676/qxxb2001.024
中文关键词:  小旋转椭球  衰减截面  偏振波
英文关键词:Little spheroid particles  Attenuation cross section  Polarized incident microwave
基金项目:国家自然科学基金(批准号49675256)
作者单位
张培昌 南京气象学院, 南京, 210044 
殷秀良 南京气象学院, 南京, 210044 
王振会 南京气象学院, 南京, 210044 
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中文摘要:
      从计算任意形状粒子的衰减截面普遍公式出发,推导出了小旋转椭球粒子群旋转轴处于不同状态时的衰减截面函数表达式,并计算分析各种状态下衰减截面随降水粒子相态、形状和入射波波长的变化特征,所得结果可用于降水微波遥感。
英文摘要:
      From a universal formula for calculating the attenuation cross section of particles in arbitrary shapes, exact expressions for calcualting the at tenuation cross section of poly-disperse, small spheroids, whose rotary axes are in specific status, have been derived. Attenuation crosssections of both liquid and ice particles in different shapes at different wavelengths in microwave band have been computed and analyzed. The results are infor-mative to microwave remote sensing of precipitation.
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