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| Titel |
Shortwave radiative heating rate profiles in hazy and clear atmosphere: a sensitivity study |
| VerfasserIn |
Lionel Doppler, Jürgen Fischer, François Ravetta, Jacques Pelon, Rene Preusker |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250034978
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| Zusammenfassung |
| Aerosols have an impact on shortwave heating rate profiles (additional heating or cooling). In
this survey, we quantify the impact of several key-parameters on the heating rate profiles of
the atmosphere with and without aerosols. These key-parameters are: (1) the atmospheric
model (tropical, midlatitude summer or winter, US Standard), (2) the integrated water vapor
amount (IWV ), (3) the ground surface (flat and rough ocean, isotropic surface albedo
for land), (4) the aerosol composition (dusts, soots or maritimes mixtures with
respect to the OPAC-database classification), (5) the aerosol optical depth and (6)
vertical postion, and (7) the single-scattering albedo (Ïo) of the aerosol mixture.
This study enables us to evaluate which parameters are most important to take into
account in a radiative energy budget of the atmosphere and will be useful for a
future study: the retrieval of heating rates profiles from satellite data (CALIPSO,
MODIS, MERIS) over the Mediterranean Sea. All the heating rates are computed by
using the vector irradiances computed at each pressure level in the spectral interval
0.2 - 3.6μm (shortwave) by the 1D radiative transfer model for atmosphere and ocean:
MOMO (Matrix-Operator MOdel) of the Institute for Space Science, FU Berlin
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