Application of spaceborne scatterometer to study typhoon, tropicalhydrologic balance, and El Nino,

摘要

Abstract: The high spatial resolution and global coverage of a spaceborne microwave scatterometer make it a powerful instrument to study phenomena ranging from typhoons to El Nino Southern Oscillations which have regional and short term economic and ecological impacts as well as effects on long term and global climate changes. In this report, the application of scatterometer data, by itself, to study the intensity and the evolution of a typhoon is demonstrated. The potential of combining wind vector and precipitable water derived from two spaceborne sensors to study the hydrologic balance in the tropics is discussed. The role of westerly wind bursts as a precursor of anomalous warming in the equatorial Pacific is investigated with coincident data from microwave scatterometer, altimeter, and radiometer. !9