Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

 
 
DownloadE-Mail
  Meteorological processes forcing Saharan dust emission inferred from MSG-SEVIRI observations of subdaily dust source activation and numerical models

Schepanski, K., Tegen, I., Todd, M. C., Heinold, B., Bönisch, G., Laurent, B., et al. (2009). Meteorological processes forcing Saharan dust emission inferred from MSG-SEVIRI observations of subdaily dust source activation and numerical models. Journal of Geophysical Research-Atmospheres, 114(10201), D10201. doi:10.1029/2008JD010325.

Item is

Dateien

einblenden: Dateien
ausblenden: Dateien
:
BGC1246.pdf (Verlagsversion), 2MB
 
Datei-Permalink:
-
Name:
BGC1246.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Eingeschränkt (Max Planck Institute for Biogeochemistry, MJBK; )
MIME-Typ / Prüfsumme:
application/octet-stream
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:
ausblenden:
externe Referenz:
http://dx.doi.org/10.1029/2008JD010325 (Verlagsversion)
Beschreibung:
OA
OA-Status:

Urheber

einblenden:
ausblenden:
 Urheber:
Schepanski, K., Autor
Tegen, I., Autor
Todd, M. C., Autor
Heinold, B., Autor
Bönisch, Gerhard1, Autor           
Laurent, B., Autor
Macke, A., Autor
Affiliations:
1Department Biogeochemical Synthesis, Prof. C. Prentice, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497753              

Inhalt

einblenden:
ausblenden:
Schlagwörter: Low-level jet West-african monsoon Intertropical discontinuity region Stable boundary-layer System lm-muscat Nocturnal jet Diurnal cycle Source areas Desert dust Samum 2006
 Zusammenfassung: Fifteen-minute Meteosat Second Generation (MSG) Spinning Enhanced Visible and Infrared Imager (SEVIRI) infrared dust index images are used to identify dust source areas. The observations of dust source activation (DSA) are compiled in a 1 degrees x 1 degrees map for the Sahara and Sahel, including temporal information at 3-hourly resolution. Here we use this data set to identify the most active dust source areas and the time of day when dust source activation occurs most frequently. In the Sahara desert 65% of DSA ( March 2006 to February 2008) occurs during 0600-0900 UTC, pointing toward an important role of the breakdown of the nocturnal low-level jet (LLJ) for dust mobilization. Other meteorological mechanisms may lead to dust mobilization including density currents initiated by deep convective systems which mobilize dust fronts (haboobs) occurring preferentially in the afternoon hours and cyclonic activities. The role of the nocturnal LLJ for dust mobilization in the Sahara is corroborated by regional model studies and analysis of meteorological station data. [References: 80]

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2009
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1029/2008JD010325
Anderer: BGC1246
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Journal of Geophysical Research-Atmospheres
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Washington, D.C. : American Geophysical Union
Seiten: - Band / Heft: 114 (10201) Artikelnummer: - Start- / Endseite: D10201 Identifikator: ISSN: 0148-0227
CoNE: https://pure.mpg.de/cone/journals/resource/991042728714264_1