elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Remote sources of water vapor forming precipitation on the Norwegian west coast at 60o N - a tale of hurricanes and an atmospheric river

Stohl, Andreas und Forster, Caroline und Sodemann, Harald (2008) Remote sources of water vapor forming precipitation on the Norwegian west coast at 60o N - a tale of hurricanes and an atmospheric river. Journal of Geophysical Research, 113 (D05102), Seiten 1-13. DOI: 10.1029/2007JD009006.

[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
7MB

Offizielle URL: http://www.agu.org/journals/jd/jd0805/2007JD009006/2007JD009006.pdf

Kurzfassung

In September 2005, an extreme precipitation event occurred on the Norwegian southwest coast, which produced flooding and landslides and caused considerable infrastructure damage and loss of human life. We found that this event was triggered by the transport of tropical and subtropical moisture associated with two former hurricanes, Maria and Nate, which both underwent transition into extratropical cyclones. The two former hurricanes generated a large stream of (sub)tropical air which extended over more than 40° of latitude and across the North Atlantic Ocean and carried a large amount of moisture originally associated with hurricane Nate; a so-called atmospheric river or moisture conveyor belt. The mountains along the Norwegian coast caused a strong orographic enhancement of the precipitation associated with the moist air. A Lagrangian moisture tracking algorithm was employed to show that the evaporative source of the precipitation falling over Norway was distributed over large parts of the North Atlantic Ocean, and indeed included large contribution from the subtropics and smaller ones from the tropics. The moisture tracking algorithm was also applied over a 5-year period. It was found that (sub)tropical sources can contribute substantially to the precipitation falling in southwestern Norway throughout the year. Thus other transport mechanisms than hurricanes are important, too, for moving (sub)tropical moisture so far north. The (sub)tropical moisture source is relatively more important during the positive phase of the North Atlantic Oscillation, as well as for stronger precipitation events.

Dokumentart:Zeitschriftenbeitrag
Titel:Remote sources of water vapor forming precipitation on the Norwegian west coast at 60o N - a tale of hurricanes and an atmospheric river
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Stohl, AndreasNILU, Kjeller, N
Forster, CarolineNICHT SPEZIFIZIERT
Sodemann, HaraldNILU, Kjeller, N
Datum:2008
Erschienen in:Journal of Geophysical Research
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:113
DOI :10.1029/2007JD009006
Seitenbereich:Seiten 1-13
Status:veröffentlicht
Stichwörter:water vapour transport, water cycle, extreme precipitation, Lagrangian modelling, tropical cyclones, atmospheric rivers
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:keine Zuordnung
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):L - keine Zuordnung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Wolkenphysik und Verkehrsmeteorologie
Hinterlegt von: Dr. Caroline Forster
Hinterlegt am:26 Nov 2008
Letzte Änderung:20 Okt 2014 14:31

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.