Journal Club do Laboratório de Física da Atmosfera – FAP
“Effect of Amazon smoke on cloud microphysics and albedo – analysis from satellite imagery (Kaufman & Nakagima, JAM 1993)”
Palestrante: Andre da Silva, IFUSP
Dia: 23 de maio, quarta-feira, às 11h.
Local: Ed. Basílio Jafet, Sala 105, IFUSP.
Abstract:
NOAA Advanced Very High Resolution Radiometer images taken over the Brazilian Amazon Basin during the biomass burning season of 1987 are used to study the effect of smoke aerosol particles on the properties of low cumulus and stratocumulus clouds. The reflectance and the drop size are studied for tens of thousands of clouds, and the opacity of the smoke layer adjacent to each cloud is also monitored simultaneously. Though from satellite data it is impossible to derive all the parameters that influence cloud properties and smoke–cloud interaction (e.g., detailed aerosol particles size distribution and chemistry, liquid water content, etc.); satellite data can be used to generate large-scale statistics of the properties of clouds and surrounding aerosol (e.g., smoke optical thickness, cloud-drop size, and cloud reflection of solar radiation) from which the interaction of aerosol with clouds can be surmised.
