@InProceedings{HerdiesPenn:2017:MuEsAe,
author = "Herdies, Dirceu Luis and Penna, Brunna Romero",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Multiyear Estimates of Aerosol Direct Radiative Forcing from the
MERRA-2 Reanalysis",
year = "2017",
organization = "American Meteorological Society Annual Meeting, 97.",
abstract = "The National Aeronautical and Space Administration Goddard Earth
Science Data Information and Services Center (GES DISC) provides
an aerosol reanalysis starting from year 1980 for the Second
Modern-Era Retrospective analysis for Research and Applications
(MERRA-2). Reanalysed products are used here to estimate the
clear-sky aerosol direct radiative forcing for the Amazon Region
over the period 2000-2015, using two methods previously applied in
other papers. Both methods agree that the years 2005, 2007 and
2010 show the bigger significance to estimates in this region.
During dry season, in a location of amazon region, the radiative
direct forcing at the top of atmosphere, average to all period,
varied from -2.5 to -10 W/mē and at the surface from -10 to -36
W/mē, with difference associated with absorption of sunlight by
aerosol layer. Already in amazon region, the estimated varied from
-1.5 to -7.5 W/mē at top of atmosphere and -6.5 to -21 W/mē at the
surface. The spatial distribution of forcings over the Amazon
showed that they affect a large area. This values show how much
the aerosols can affect the energy balance, and consequently the
regional circulation and the water budget in the Amazon Region.
This was the first study of a long time series of clear-sky
aerosol radiative forcing on the surface, atmosphere and top of
the atmosphere in the Amazon.",
conference-location = "Seattle",
conference-year = "21-26 jan.",
language = "en",
urlaccessdate = "18 abr. 2024"
}