NDLI: Calibration of the model for ocean surface emissivity at microwave frequencies

Content Provider	IEEE Xplore Digital Library
Author	Cruz Pol, S.L. Ruf, C.S.
Copyright Year	1999
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Puerto Rico Univ., Mayaguez, Puerto Rico (Cruz Pol, S.L.)
Abstract	Modifications to the L.A. Klein et al. (1977) model for specular ocean emissivity have recently been suggested by W.J. Ellison et al. (1996) in order to improve the performance at high microwave frequencies. The work presented in the present article tests both the original and modified models using a set of satellite and ground based observations that is designed to eliminate as much as possible the dependence of the test on parameters other than the surface emission itself. Clear sky, low humidity, and low wind conditions were used exclusively, to reduce the dependence of the test on atmospheric and wind-roughened sea models. Radiosonde observations (RaObs) coincident with TOPEX satellite overpasses were used to reduce errors due to inexact knowledge of the atmosphere. The authors tests confirm the superior performance of the Ellison model at higher frequencies. In an effort to remove the residual bias between the models and the observations, the present authors also suggest a parameterized modification to both models that "best fits" the models to the data. In this case, the modified Ellison model maintains its superior performance at high frequencies, suggesting that it has an inherently more accurate frequency dependence. The RMS error in the modified Ellison emissivity model, over the range 18-40 GHz, is found to be 0.0037, which in terms of brightness temperatures translates into a model error of approximately 1 K.
Starting Page	2318
Ending Page	2320
File Size	337868
Page Count	3
File Format	PDF
ISBN	0780352076
DOI	10.1109/IGARSS.1999.775114
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-06-28
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Calibration Sea surface Atmospheric modeling Testing Ocean temperature Satellite broadcasting Microwave frequencies Humidity Atmosphere Frequency dependence
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

A modified model for specular sea surface emissivity at microwave frequencies

Estimation of sea surface temperature using passive microwave satellite imagery

Surface Emissivity of the Arctic Sea Ice at AMSR-E Frequencies

An improved wide band ocean emissivity radiative transfer model

Calibration of the Model for Ocean Surface Emissivity at Microwave Frequencies

Simulation Software For A Satellite-borne Radiometer System

Atmospheric effects on the wind retrieval performance of satellite radiometers

Boundary-layer Water-vapour Content Over Oceans From Ssm/i Observations

Validation of satellite infrared radiometers and investigation of ocean-atmosphere interaction

Calibration of the model for ocean surface emissivity at microwave frequencies

Similar Documents

A modified model for specular sea surface emissivity at microwave frequencies

Estimation of sea surface temperature using passive microwave satellite imagery

Surface Emissivity of the Arctic Sea Ice at AMSR-E Frequencies

An improved wide band ocean emissivity radiative transfer model

Calibration of the Model for Ocean Surface Emissivity at Microwave Frequencies

Simulation Software For A Satellite-borne Radiometer System

Atmospheric effects on the wind retrieval performance of satellite radiometers

Boundary-layer Water-vapour Content Over Oceans From Ssm/i Observations

Validation of satellite infrared radiometers and investigation of ocean-atmosphere interaction

Calibration of the model for ocean surface emissivity at microwave frequencies