NDLI: Application of the unified retrieval approach to real DMSP sensor data over ocean and land

Content Provider	IEEE Xplore Digital Library
Author	Moncet, S.B. Isaacs, R.G. Hegarty, J.D.
Copyright Year	1995
Description	Author affiliation: Atmos. & Environ. Res. Inc., Cambridge, MA, USA (Moncet, S.B.; Isaacs, R.G.; Hegarty, J.D.)
Abstract	A physical retrieval algorithm for the simultaneous retrieval of atmospheric temperature, water vapor and cloud liquid water as well as surface skin temperature and emissivity from microwave sensors has been developed by Moncet and Isaacs (1994, 1992). The algorithm uses a nonlinear inversion method similar to the one described by Rodgers (1976) for the inversion of the measured brightness temperatures. Climatology provides the desired inter-correlation between the various elements of the state vector. This information is used to effectively reduce the number of degrees of freedom in the problem, and therefore reduce the dependence of the solution on the first guess. Information from other sources, such as forecast models, is integrated by optimally combining it with the primary background information. Emissivity is treated by retrieving one emissivity value per sensor channel. The degree of correlation between the emissivities in each channel is specified through the first-guess error covariance matrix. This method offers more flexibility than the one proposed by Eyre (1990) and makes it possible to apply the algorithm to combinations of sensors with mixed viewing geometries and polarizations such as the DMSP microwave sensor suite. The algorithm has been tested based on simulated data and was successfully applied to limited sets of real measurements from the combined DMSP microwave sensors (SSM/T-1, T2 and SSM/I) over both ocean and land.<>
Starting Page	186
Ending Page	188
File Size	243498
Page Count	3
File Format	PDF
ISBN	0780324021
DOI	10.1109/COMEAS.1995.472370
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-04-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microwave sensors Ocean temperature Temperature sensors Sea measurements Clouds Sea surface Skin Atmospheric measurements Temperature measurement Brightness temperature
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

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