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Rainfall Measurement with a Ground Based Dual Frequency RadarDual frequency methods are one of the most useful ways to estimate precise rainfall rates. However, there are some difficulties in applying this method to ground based radars because of the existence of a blind zone and possible error in the radar calibration. Because of these problems, supplemental observations such as rain gauges or satellite link estimates of path integrated attenuation (PIA) are needed. This study shows how to estimate rainfall rate with a ground based dual frequency radar with rain gauge and satellite link data. Applications of this method to stratiform rainfall is also shown. This method is compared with single wavelength method. Data were obtained from a dual frequency (10 GHz and 35 GHz) multiparameter radar radiometer built by the Communications Research Laboratory (CRL), Japan, and located at NASA/GSFC during the spring of 1997. Optical rain gauge (ORG) data and broadcasting satellite signal data near the radar t location were also utilized for the calculation.
Document ID
20000038116
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Takahashi, Nobuhiro
(Universities Space Research Association Greenbelt, MD United States)
Horie, Hiroaki
(Communications Research Lab. Tokyo, Japan)
Meneghini, Robert
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1997
Publication Information
Publication: Laboratory for Hydrospheric Processes Research Publications
Subject Category
Meteorology And Climatology
Report/Patent Number
P2.32
Meeting Information
Meeting: Radar Meteorology
Location: Austin, TX
Country: United States
Start Date: September 7, 1997
End Date: September 12, 1997
Distribution Limits
Public
Copyright
Other

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