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Influence of airborne Doppler wind lidar profiles near Typhoon Sinlaku on ECMWF and NOGAPS forecasts

Weissmann, M. und Langland, R. H. und Cardinali, C. und Rahm, S. (2012) Influence of airborne Doppler wind lidar profiles near Typhoon Sinlaku on ECMWF and NOGAPS forecasts. Quarterly Journal of the Royal Meteorological Society, 138, Seiten 118-130. DOI: 10.1002/qj.896.

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Offizielle URL: http://onlinelibrary.wiley.com/doi/10.1002/qj.896/pdf

Kurzfassung

A set of about 2500 Doppler wind lidar (DWL) profiles was measured by the DLR Falcon aircraft during the life cycle of Typhoon Sinlaku in the western North Pacific as part of the THORPEX Pacific Asian Regional Campaign (T-PARC) 2008. These DWL profiles were assimilated in the global models of the European Centre for Medium-Range Weather Forecasts (ECMWF) and the Naval Research Laboratory (NRL). The beneficial impact of DWL observations is demonstrated with data denial experiments of both models and differences of the observation impact on analyses and forecasts are analysed. Additionally, the impact is quantified using the adjoint observation impact calculation. These calculations confirm the beneficial impact of DWL observations. The total relative contribution of DWL observations is about twice as high in the NRL system compared to the ECMWF system, which may be due to the lower number of satellite observations assimilated in the NRL system. In the NRL system, the DWL impact per observation is higher than that of other wind observations, whereas in the ECMWF system the DWL impact per observations is similar to other aircraft observations and lower than that of radiosondes. The results confirm preceding studies assimilating airborne DWL observations in numerical weather prediction models and underline the high expectations for future space-borne DWL instruments.

Dokumentart:Zeitschriftenbeitrag
Titel:Influence of airborne Doppler wind lidar profiles near Typhoon Sinlaku on ECMWF and NOGAPS forecasts
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Weissmann, M.DLR
Langland, R. H.Naval Research Laboratory, Monterey, CA, USA
Cardinali, C.ECMWF, Reading, UK
Rahm, S.DLR
Datum:2012
Erschienen in:Quarterly Journal of the Royal Meteorological Society
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:138
DOI :10.1002/qj.896
Seitenbereich:Seiten 118-130
Status:veröffentlicht
Stichwörter:DWL; observation impact; data assimilation; THORPEX; T-PARC
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Atmosphären- und Klimaforschung
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Lidar
Hinterlegt von: Stephanie Zähnle
Hinterlegt am:12 Dez 2011 10:34
Letzte Änderung:12 Dez 2013 21:28

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