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Time-dependent Second Order Scattering Theory for Weather Radar with a Finite Beam WidthMultiple scattering effects from spherical water particles of uniform diameter are studied for a W-band pulsed radar. The Gaussian transverse beam-profile and the rectangular pulse-duration are used for calculation. An second-order analytical solution is derived for a single layer structure, based on a time-dependent radiative transfer theory as described in the authors' companion paper. When the range resolution is fixed, increase in footprint radius leads to increase in the second order reflectivity that is defined as the ratio of the second order return to the first order one. This feature becomes more serious as the range increases. Since the spaceborne millimeter-wavelength radar has a large footprint radius that is competitive to the mean free path, the multiple scattering effect must be taken into account for analysis.
Document ID
20060051692
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Kobayashi, Satoru
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tanelli, Simone
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Im, Eastwood
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ito, Shigeo
(Tokyo Univ. Saitama, Japan)
Oguchi, Tomohiro
(Kanto Gakuin Univ. Kanagawa, Japan)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Communications And Radar
Meeting Information
Meeting: International Geoscience and Remote Sensing Symposium (IGARSS)
Location: Denver, CO
Country: United States
Start Date: July 31, 2006
End Date: August 4, 2006
Distribution Limits
Public
Copyright
Other
Keywords
mulitple scattering
backscattering enhancement
weather radar

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