Development of urban surface models for improved aerosol retrieval

Min Oo; Matthias Jerg; Ana J. Picon; Eduardo Hernandez; Barry Gross; Fred Moshary; Samir Ahmed

doi:10.1117/12.830666

7 October 2009 Development of urban surface models for improved aerosol retrieval

Min Oo, Matthias Jerg, Ana J. Picon, Eduardo Hernandez, Barry Gross, Fred Moshary, Samir Ahmed

Proceedings Volume 7478, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology IX; 74780U (2009) https://doi.org/10.1117/12.830666
Event: SPIE Remote Sensing, 2009, Berlin, Germany

Abstract

A combination of CIMEL radiometer and MODIS measurements are used to correct surface albedo models. In particular, we show through an analysis of hyperspectral high resolution Hyperion data that the correlation coefficient assumption underestimates ground albedo resulting in an overestimate of the VIS optical depth and operational collect 5 surface model shows an incorrect trend between the MVI index and the surface correlations. Preliminary radiative transfer calculations based on the same model show that this mechanism can help explain the observed overestimation and the corrected models have been implemented for NYC and Mexico City with significantly improved AOD.

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Min Oo, Matthias Jerg, Ana J. Picon, Eduardo Hernandez, Barry Gross, Fred Moshary, and Samir Ahmed "Development of urban surface models for improved aerosol retrieval", Proc. SPIE 7478, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology IX, 74780U (7 October 2009); https://doi.org/10.1117/12.830666

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KEYWORDS

Reflectivity

MODIS

Aerosols

Atmospheric modeling

Clouds

Spatial resolution

Vegetation

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