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Major factors influencing local dust radiative forcing

Wendisch, Manfred and Bierwirth, Eike and Bauer, Stefan and Otto, Sebastian and Trautmann, Thomas (2008) Major factors influencing local dust radiative forcing. In: Third International Workshop on Mineral Dust. Third International Workshop on Mineral Dust, 2008-09-15 - 2008-09-17, Leipzig (Germany).

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Abstract

In conclusion, it is shown in this paper that surface albedo variations over desert regions can have a significant influence on the solar and net radiative forcing of desert dust. It is furthermore concluded that desert dust has mostly a cooling effect over oceans, and a warming effect over highly reflecting desert regions. The widespread non-sphericity of the dust particles causes a challenge; it yields an additional contribution to the cooling effect. It is also concluded here that it might be more appropriate not to start with microphysical properties in order to quantify the dust particle radiative effects. Direct measurements of the optical dust particle properties are preferable, otherwise too much uncertainties are coming into play (shape, composition, size). Using the microphysical properties is more suited if the sensitivity of the radiative forcing is investigated.

Document Type:Conference or Workshop Item (Speech)
Title:Major factors influencing local dust radiative forcing
Authors:
AuthorsInstitution or Email of Authors
Wendisch, ManfredInstitute for Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany
Bierwirth, EikeInstitute for Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany
Bauer, StefanInstitute for Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany
Otto, SebastianUNSPECIFIED
Trautmann, ThomasUNSPECIFIED
Date:September 2008
Journal or Publication Title:Third International Workshop on Mineral Dust
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:spectral radiation measurements, radiative transfer, non-spherical particles, mineral dust, dust radiative forcing
Event Title:Third International Workshop on Mineral Dust
Event Location:Leipzig (Germany)
Event Type:international Conference
Event Dates:2008-09-15 - 2008-09-17
Organizer:Leibniz Institute for Tropospheric Research, Leipzig, Germany
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung von Atmosphärenprozessoren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Prof.Dr. Thomas Trautmann
Deposited On:21 Jan 2009
Last Modified:12 Dec 2013 20:36

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