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Relationships between mineral dust and cloud properties in the West African Sahel.

Klüser, Lars und Holzer-Popp, Thomas (2010) Relationships between mineral dust and cloud properties in the West African Sahel. Atmospheric Chemistry and Physics, 10, Seiten 6901-6915. DOI: 10.5194/acp-10-6901-2010.

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Offizielle URL: http://www.atmos-chem-phys.net/10/6901/2010/

Kurzfassung

Aerosol cloud interactions are known to be of great importance to many parts of the climate system. Five years of observations from three different satellites (Aqua, ENVISAT and Meteosat Second Generation) are used to statistically analyse the relationship of mineral dust aerosol, separated from other aerosol species, with monsoon season cloud state in the West African Sahel domain. Additionally, observations of the Tropical Rainfall Measuring Mission are used for discrimination of dry and wet seasons. The aerosolcloud- interactions are analysed separately by season and air mass in order to minimise spurious correlations with meteorological conditions. The detailed analysis uncovers different counteracting relationships of the mineral dust aerosol with the cloud state, which is also evident from an analysis of the spatial distribution patterns of cloud properties changes with dust activity. The aerosol-cloud relationships found from the analysis of this multiple year dataset are mainly consistent with the hypothesis of a suppression of convective activity, but also indications of lifetime enhancement and thus increased cloud cover and convective intensity are found in some subsets.

Dokumentart:Zeitschriftenbeitrag
Titel:Relationships between mineral dust and cloud properties in the West African Sahel.
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Klüser, Larslars.klueser@dlr.de
Holzer-Popp, Thomasthomas.holzer-popp@dlr.de
Datum:26 Juli 2010
Erschienen in:Atmospheric Chemistry and Physics
Referierte Publikation:Ja
In Open Access:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:10
DOI :10.5194/acp-10-6901-2010
Seitenbereich:Seiten 6901-6915
Status:veröffentlicht
Stichwörter:Mineral Dust, Aerosol-Cloud-Interactions, West Africa
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Atmosphären- und Klimaforschung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Deutsches Fernerkundungsdatenzentrum > Atmosphäre
Hinterlegt von: Dipl. Met. Lars Klüser
Hinterlegt am:16 Sep 2010 12:23
Letzte Änderung:04 Apr 2013 09:42

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