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| Titel |
A new method for deriving aerosol solar radiative forcing and its first application within MILAGRO/INTEX-B |
| VerfasserIn |
K. S. Schmidt, P. Pilewskie, R. Bergstrom, O. Coddington, J. Redemann, J. Livingston, P. Russell, E. Bierwirth, M. Wendisch, W. Gore, M. K. Dubey, C. Mazzoleni |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 16 ; Nr. 10, no. 16 (2010-08-24), S.7829-7843 |
| Datensatznummer |
250008723
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| Publikation (Nr.) |
 copernicus.org/acp-10-7829-2010.pdf |
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| Zusammenfassung |
| We introduce a method for deriving aerosol spectral radiative forcing along
with single scattering albedo, asymmetry parameter, and surface albedo from
airborne vertical profile measurements of shortwave spectral irradiance and
spectral aerosol optical thickness. The new method complements the
traditional, direct measurement of aerosol radiative forcing efficiency from
horizontal flight legs below gradients of aerosol optical thickness, and is
particularly useful over heterogeneous land surfaces and for homogeneous
aerosol layers where the horizontal gradient method is impractical. Using
data collected by the Solar Spectral Flux Radiometer (SSFR) and the Ames
Airborne Tracking Sunphotometer (AATS-14) during the MILAGRO (Megacity
Initiative: Local and Global Research Observations) experiment, we validate
an over-ocean spectral aerosol forcing efficiency from the new method by
comparing with the traditional method. Retrieved over-land aerosol optical
properties are compared with in-situ measurements and AERONET retrievals.
The spectral forcing efficiencies over ocean and land are remarkably
similar and agree with results from other field experiments. |
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