Rain rate estimation by simplified method using UHF wind profiler measurement at KMITL

Chaiwat Somboonlarp; Nipha Leelaruji; Narong Hemmakorn; Apinan Manyanon; Yuichi Ohno

doi:10.1117/12.410625

21 December 2000 Rain rate estimation by simplified method using UHF wind profiler measurement at KMITL

Chaiwat Somboonlarp, Nipha Leelaruji, Narong Hemmakorn, Apinan Manyanon, Yuichi Ohno

Proceedings Volume 4152, Microwave Remote Sensing of the Atmosphere and Environment II; (2000) https://doi.org/10.1117/12.410625
Event: Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 2000, Sendai, Japan

Abstract

In this paper, we propose a simplified method for rain rate estimation only using simple parameters instead of the fitting or retrieval calculation using data of UHF wind profiler measurement, which operated by Kind Mongkut's Institute of Technology Lardkrabang (KMITL) in Bangkok, Thailand. The simple parameters in this method use only the peak position of rain echo and Doppler velocity of clear air echo from Doppler spectral for estimated rain drop size distribution (DSD), which is more important to calculate rain rate. Doppler spectra of UHF wind profiler at KMITL during the rainy season are used for testing the availability of this simplified rain estimation method. Rough agreement between rain rate estimation from the surface rain gauge and UHF wind profiler at KMITL can be seen at the range of low rain rate. At the range of high rain rate, the estimation by this method does not correspond to the surface rain gauge since the Doppler spectra seems saturated with too strong rain echo.

Citation Download Citation

Chaiwat Somboonlarp, Nipha Leelaruji, Narong Hemmakorn, Apinan Manyanon, and Yuichi Ohno "Rain rate estimation by simplified method using UHF wind profiler measurement at KMITL", Proc. SPIE 4152, Microwave Remote Sensing of the Atmosphere and Environment II, (21 December 2000); https://doi.org/10.1117/12.410625

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KEYWORDS

Wind measurement

Ytterbium

Doppler effect

Atmospheric sensing

Environmental sensing

Microwave remote sensing

Plasma display panels

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