A Preliminary Study of Non-Uniform Beam Filling Correction for Spaceborne Radar Rainfall Measurement (Special Issue on Weather Radar Technology)

概要

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A method to correct the path-integrated attenuation derived from spaceborne radar measurement for the non-uniform beam filling (NUBF) effect is studied. A preliminary test using the data obtained from shipborne and ground-based radars is performed. It is found that the relation between the coarse-scale variability (rader-measurable quantity, σ_L) and the fine-scale variability (a quantity necessary for the NUBF correction, σ_H) of rain depends somewhat upon the rain cases studied and there still remains some underestimation in the corrected results. Nevertheless, the test result demonstrates the potential of utilizing the "local" statistical properties of rain in order to decrease the bias error in rain rate estimation caused by the NUBF.
社団法人電子情報通信学会の論文
1996-06-25