Retrieval of aerosol optical thickness over land using the ATSR-2 dual-look satellite radiometer

Details Retrieval of aerosol optical thickness over land using the ATSR-2 dual-look satellite radiometer Retrieval of aerosol optical thickness over land using the ATSR-2 dual-look satellite radiometer

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996georl..23..351f&link_type=abstract

Geophysical Research Letters, Volume 23, Issue 4, p. 351-354

Other

12

Atmospheric Composition And Structure: Aerosols And Particles, Atmospheric Composition And Structure: Instruments And Techniques, Atmospheric Composition And Structure: Transmission And Scattering Of Radiation

Scientific paper

We present a new method of retrieving aerosol optical thickness over land that takes advantage of the dual look capability of the ATSR-2 instrument. Unlike some methods, the approach does not require dense dark vegetation to be located, nor is it dependent upon invariant targets, nor does it assume that the underlying surface reflectance is purely Lambertian. It makes use of a new surface approximation that exploits the property of the surface which is least variable with wavelength to allow atmospheric parameters to be retrieved and, consequently, is applicable over virtually any land surface. The method is tested using simulated ATSR-2 measurements based upon a radiative transfer model coupled with a surface bidirectional model that includes the hot-spot effect, and is shown to be robust to the effects of differing underlying canopy types. At high optical depths, the retrieval process achieves a mean error in optical thickness of less than 2.5%, depending on surface type, with a maximum absolute error (for the same data sets) of 5% while at low optical depths errors are of the order of 5%. The effects of systematic error in the simulated radiances are also shown. The method may be readily extended to other multiple look satellite radiometers.

Affiliated with

Also associated with

No associations

Rating

Retrieval of aerosol optical thickness over land using the ATSR-2 dual-look satellite radiometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Retrieval of aerosol optical thickness over land using the ATSR-2 dual-look satellite radiometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retrieval of aerosol optical thickness over land using the ATSR-2 dual-look satellite radiometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1155786