статья в журнале

Ru

Sovremennye Problemy Distantsionnogo Zondirovaniya Zemli iz Kosmosa

ISSN:20707401
eSSN:2411-0280

2021

10.21046/2070-7401-2021-18-6-46-56

One of the main problems of oceanography is validating satellite and field data, studying the influence of the atmospheric component on the performance of satellite algorithms. In current research, we consider the effect of dust aerosol on the results of calculating the remote sensing reflectance of the Black and Mediterranean Seas from measurements by the MODIS Aqua satellite. Eleven cases of dust transport were accompanied by dust-specific changes in optical characteristics, such as: aerosol optical thickness, aerosol particle size distribution, Angstrom parameter and single scattering albedo. During the analysis of dust episodes, 5 of which were over the Black Sea and 6 over the Mediterranean Sea, it was concluded that it was necessary to correct or create a new regional algorithm for the Black Sea. Since in the presence of dust aerosol, as a result of high aerosol optical depth (AOT), satellite algorithms significantly overestimate the reflection coefficient of seawater, which may be due to the fact that not all geophysical factors occurring in the Black Sea basin are taken into account. In the Mediterranean, this effect was not observed. The study examined the dust days without clouds, blooming or highlights for assessing the exact contribution of dust. © 2021 Space Research Institute of the Russian Academy of Sciences. All rights reserved.

AERONET, Aerosol optical depth, Angstrom parameter, Atmospheric correction, Dust aerosol, MODIS, Remote sensing reflectance, Sea brightness, Single scattering albedo

2022-01-31 14:49:40