NDLI: The Emissivity of the Ocean Surface Between 6 and 90 GHz Over a Large Range of Wind Speeds and Earth Incidence Angles

Content Provider	IEEE Xplore Digital Library
Author	Meissner, T. Wentz, F.J.
Copyright Year	1980
Abstract	We present a model function for the emissivity of the wind roughened ocean surface for microwave frequencies between 6 and 90 GHz. It is an update, refinement, and extension of model functions we had developed previously. The basis of our analysis are brightness temperature (TB) measurements from the spaceborne microwave radiometer WindSat and the Special Sensor Microwave/Imager, which are collocated with independent measurements of surface wind speeds and directions. This allows the determination of the emissivity model function for Earth incidence angles (EIA) around 55°. We demonstrate that an essential part in the model development is the absolute calibration of the radiometer measurements over the ocean to the computed TB of the radiative transfer model, one of whose components the emissivity model function is. We combine our results with other established measurements for lower EIA and finally obtain a model function which can be used over the whole EIA range between 0° and 65°. Results for both the isotropic, wind direction independent part as well as the four Stokes parameters of the wind direction signal are presented. Special emphasis is made on the behavior at high wind speeds between 20 and 40 m/s by conducting a comparison with data from the step frequency microwave radiometer.
Sponsorship	IEEE Geoscience and Remote Sensing Society IEEE URSI
Starting Page	3004
Ending Page	3026
Page Count	23
File Size	3900862
File Format	PDF
ISSN	01962892
Volume Number	50
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wind speed Sea surface Ocean temperature Sea measurements Atmospheric modeling Microwave radiometry WindSat High wind speeds microwave radiometer calibration ocean surface emissivity radiative transfer model (RTM) Step Frequency Microwave Radiometer (SFMR) Special Sensor Microwave/Imager (SSM/I) Stokes' parameters
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Electrical and Electronic Engineering

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

An Improved C-Band Ocean Surface Emissivity Model at Hurricane-Force Wind Speeds Over a Wide Range of Earth Incidence Angles

An emissivity-based wind vector retrieval algorithm for the WindSat polarimetric radiometer

Effects of foam on ocean surface microwave emission inferred from radiometric observations of reproducible breaking waves

Polarimetric microwave wind radiometer model function and retrieval testing for WindSat

Hurricane Wind Speed Estimation Using WindSat 6 and 10 GHz Brightness Temperatures

A nonlinear optimization algorithm for WindSat wind vector retrievals

Effects of air-sea interaction parameters on ocean surface microwave emission at 10 and 37 GHz

Fully polarimetric measurements of brightness temperature distributions with a quasi-optical radiometer system at 90 GHz

Ocean Vector Winds From WindSat Two-Look Polarimetric Radiances

The Emissivity of the Ocean Surface Between 6 and 90 GHz Over a Large Range of Wind Speeds and Earth Incidence Angles

Similar Documents

An Improved C-Band Ocean Surface Emissivity Model at Hurricane-Force Wind Speeds Over a Wide Range of Earth Incidence Angles

An emissivity-based wind vector retrieval algorithm for the WindSat polarimetric radiometer

Effects of foam on ocean surface microwave emission inferred from radiometric observations of reproducible breaking waves

Polarimetric microwave wind radiometer model function and retrieval testing for WindSat

Hurricane Wind Speed Estimation Using WindSat 6 and 10 GHz Brightness Temperatures

A nonlinear optimization algorithm for WindSat wind vector retrievals

Effects of air-sea interaction parameters on ocean surface microwave emission at 10 and 37 GHz

Fully polarimetric measurements of brightness temperature distributions with a quasi-optical radiometer system at 90 GHz

Ocean Vector Winds From WindSat Two-Look Polarimetric Radiances

The Emissivity of the Ocean Surface Between 6 and 90 GHz Over a Large Range of Wind Speeds and Earth Incidence Angles