NDLI: Field studies on the action of rain on the radar backscattering from wind-roughened water surfaces

Content Provider	IEEE Xplore Digital Library
Author	Braun, N. Gade, M.
Copyright Year	2003
Description	Author affiliation: Inst. fur Kustenforschung, GKSS-Forschungszentrum, Geesthacht, Germany (Braun, N.)
Abstract	In order to gain further insight into the radar backscattering from rain-and wind-roughened water surfaces, we performed field experiments at the mouth of the river Elbe in the German Bight. The backscattered radar power from the water surface was measured at different wind speeds, wind directions, and rain rates, as well as at different radar frequencies, polarizations, and incidence angles. Our results show that the dominant scattering mechanism at VV-polarization is Bragg scattering which shows a strong dependence on the Bragg wavelength. The enhancement and reduction of the surface roughness by splash products and sub-surface phenomena, respectively, result in a transition wavenumber between enhancement of the radar backscattering (due to additional surface roughness) and its reduction (due to wave damping) of about 100 rad/m. We hypothesize that this transition wavenumber depends on the drop-size distribution of the rain. Taking into consideration the different dependencies on rain rate of the radar backscatter at different frequencies and polarizations, we suggest a method to estimate rain rates by calculating the ratio of the radar cross-sections at L band, VV-polarization and at C band, HV-polarization. Provided an availability of synthetic aperture radar (SAR) data at the respective frequency/polarization combinations, this method will allow for investigating the nature of small-scale (convective) rain events over the ocean by analyzing multi-frequency/multi-polarization SAR images.
Starting Page	2248
Ending Page	2250
File Size	1351998
Page Count	3
File Format	PDF
ISBN	0780379292
DOI	10.1109/IGARSS.2003.1294404
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-07-21
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rain Backscatter Sea surface Polarization Radar measurements Wind speed Frequency Radar scattering Surface waves Rough surfaces
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Multi-frequency/multi-polarization measurements of radar backscatter under different rain and wind conditions

Radar backscatter from a wind roughened water surface in the Bragg regime

Wind influence on sea radar backscattering intensity

Experimental comparison of scatterometric signatures from a water surface agitated by wind and artificial rain

Satellite measurements of backscatter from rain-induced roughness on the sea surface using QuickSCAT and TRMM

On the electromagnetic scattering from wind-roughened water surfaces

Radar backscattering measurements of artificial rain impinging on a water surface at different wind speeds

Microwave scattering distributions from a rain-roughened water surface: measurements and modelling

Experimental study of spectra and X- and Ka-band backscattering from the rain agitated water surface

Field studies on the action of rain on the radar backscattering from wind-roughened water surfaces

Similar Documents

Multi-frequency/multi-polarization measurements of radar backscatter under different rain and wind conditions

Radar backscatter from a wind roughened water surface in the Bragg regime

Wind influence on sea radar backscattering intensity

Experimental comparison of scatterometric signatures from a water surface agitated by wind and artificial rain

Satellite measurements of backscatter from rain-induced roughness on the sea surface using QuickSCAT and TRMM

On the electromagnetic scattering from wind-roughened water surfaces

Radar backscattering measurements of artificial rain impinging on a water surface at different wind speeds

Microwave scattering distributions from a rain-roughened water surface: measurements and modelling

Experimental study of spectra and X- and Ka-band backscattering from the rain agitated water surface

Field studies on the action of rain on the radar backscattering from wind-roughened water surfaces