Home – Home – Jornals – Atmospheric and Oceanic Optics 2013 number 7

The results of numerical simulation of aerosol radiative forcing for three regions of the Ocean are presented: the coastal area of Antarctica, the Sea of Japan, and the Sea of Darkness. In the simulation of aerosol radiative forcing in these regions the results of ship measurements of aerosol optical depth and water vapor content are used. Data on the single scattering albedo and asymmetry factor are represented by the model (coastal Antarctica – model OPAC) and long-term observations at AERONET photometric stations (Sea of Japan – Noto site and the Sea of Darkness – Cape Verde site). Calculations showed that cooling effect of aerosol over the Japan Sea/Sea of Darkness on the borders of atmosphere increases by about an order of magnitude as compared to the clear atmosphere near Antarctica. In this case, the daily averaged values of the aerosol radiative forcing change as follows: at the level of the underlying surface from –2.3 (Antarctica) to –30.3/–32.6 W/m² (Japan Sea/Sea of Darkness), at the top of the atmosphere from –1.9 to –16.1/–18 W/m². The estimates obtained are in good agreement with the results of other authors.