METHOD OF DETECTING AND COMPENSATING FOR PRECIPITATION IN SODAR SYSTEMS

摘要

A method of detecting precipitation with a sodar apparatus (200) thattransmits sound beams (31) into the atmosphere,detects echoes returned from the atmosphere, from the echoes determines aDoppler-shifted spectrum (41, 42) comprisingthe relative strength of the echoes at various Doppler-shifted frequencies,and estimates wind speed and direction. The methodincludes automatically estimating the presence of precipitation (42) based onthe Doppler-shifted spectrum (41, 42).