NDLI: Retrieval of aerosol optical depth over water and over land from multi-spectral electro-optical sensors on satellites

Content Provider	IEEE Xplore Digital Library
Author	de Leeuw, G. Veefkind, P.J.
Copyright Year	1999
Description	Author affiliation: TNO Phys. & Electron. Lab., The Hague, Netherlands (de Leeuw, G.)
Abstract	Aerosols have been identified as an important factor in the regulation of the Earth climate. The incoming solar radiation is scattered by aerosols, which induces a negative (cooling) effect on the atmospheric radiation balance. The present contribution is focused on the detection of aerosols by using their scattering properties. The concentrations and occurrence of aerosols are highly variable in both space and time, due to the occurrence of many direct sources with strongly different source strengths, atmospheric residence times of several days, and a variety of transport mechanisms that disperse the aerosol throughout the troposphere. To obtain information on the regional and global distributions of aerosols, and thus on their effects on climate and other important issues such as health and environmental effects, satellite remote sensing is a very promising tool. Different satellite instruments are becoming available that have been designed to derive specific information that can be used for aerosol retrieval. The problem to derive aerosol properties from radiation received by satellite-based sensors is to separate the contribution due to reflection at the surface from the contribution due to scattering by aerosols. It was thought that aerosol retrieval was only possible over water, i.e. dark surfaces with very low reflection. However, at the TNO Physics and Electronics Laboratory (TNO-FEL), algorithms have been developed that can also be applied over land. An overview of algorithms presently available at TNO-FEL is presented.
Starting Page	362
Ending Page	365
File Size	342703
Page Count	4
File Format	PDF
ISBN	0780352076
DOI	10.1109/IGARSS.1999.773498
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	Aerosols Optical scattering Satellites Optical reflection Optical sensors Earth Solar radiation Cooling Terrestrial atmosphere Remote sensing
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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
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