On reflectance ratios and aerosol optical depth retrieval in the presence of cumulus clouds

Details On reflectance ratios and aerosol optical depth retrieval in the presence of cumulus clouds On reflectance ratios and aerosol optical depth retrieval in the presence of cumulus clouds

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3506807k&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 6, CiteID L06807

Physics

6

Atmospheric Processes: Clouds And Aerosols, Atmospheric Processes: Remote Sensing, Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801, 4906), Atmospheric Composition And Structure: Cloud/Radiation Interaction, Atmospheric Composition And Structure: Radiation: Transmission And Scattering

Scientific paper

The traditional conversion of satellite-observed reflectances to the aerosol optical depth (AOD) is highly conjectural in the vicinity of clouds due to the 3D cloud-induces enhancement of the apparent reflectance. This study uses 3D Monte Carlo radiative transfer calculations and simulated cloud and aerosol fields to illustrate that for clear pixels the reflectance ratios for two pairs of wavelengths (660, 470 nm and 870, 470 nm) are less sensitive to the 3D cloud effects than the reflectances themselves. We develop a new algorithm for converting these two ratios to three spectral values of AOD and show that it is accurate to within 10% for the majority of clear pixels in our model-inverse problem. This preliminary study suggests that the proposed approach can be used to significantly improve the accuracy of the AOD retrieved from spectral satellite observations under partly cloudy conditions.

Affiliated with

Also associated with

No associations

Rating

On reflectance ratios and aerosol optical depth retrieval in the presence of cumulus clouds 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 On reflectance ratios and aerosol optical depth retrieval in the presence of cumulus clouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On reflectance ratios and aerosol optical depth retrieval in the presence of cumulus clouds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-957815