Rain generated ring-waves: Measurements and modelling for remote sensing
作者:
L. F. Bliven,
P. W. Sobieski,
C. Craeye,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1997)
卷期:
Volume 18,
issue 1
页码: 221-228
ISSN:0143-1161
年代: 1997
DOI:10.1080/014311697219385
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
We present an analysis of ring-wave and scatterometer data from a water surface that was agitated by simulated rain. Water droplets of 2.8mm diameter impacted the water surface at almost terminal velocity, and the rain rates cover a wide range of conditions (5 to 200mm hr−1). Both the ring-wave energy and backscattered power from the GHz scatterometer increase asRincreases, but the growth rates slacken at higher rain intensities. Ring-wave frequency spectra and wavenumber spectra are well represented by log-Gaussian spectral models. The results can be used to guide development of microwave scattering models.
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