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ADM-Aeolus Level-2B Wind Retrieval Algorithms

Tan, David G. H. and Andersson, Erik and de Kloe, Jos and Marseille, Gert-Jan and Stoffelen, Ad and Poli, Paul and Denneulin, Marie-Laure and Dabas, Alain and Huber, Dorit and Reitebuch, Oliver and Flamant, Pierre and Le Rille, Olivier and Straume, Anne-Grete and Nett, Herbert (2007) ADM-Aeolus Level-2B Wind Retrieval Algorithms. In: Proc. 14th Coherent Laser Radar Conference. 14. Coherent Laser Radar Conference, 2007-07-08 - 2007-07-13, Snowmass, CO (USA).

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Official URL: http://www.ecmwf.int/publications/

Abstract

The ADM-Aeolus is primarily a research and demonstration mission flying the first Doppler wind lidar in space. Flexible data processing tools are being developed for use in the operational ground segment and by the meteorological community. We present the algorithms developed to retrieve accurate and representative wind profiles, suitable for assimilation in numerical weather prediction. The algorithms provide a flexible framework for classification and weighting of measurement-scale (1 10 km) data into aggregated, observation-scale (50 km) wind profiles for assimilation. The algorithms account for temperature and pressure effects in the molecular backscatter signal, and so the main remaining scientific challenge is to produce representative winds in inhomogeneous atmospheric conditions, such as strong wind shear, broken clouds, and aerosol layers. The Aeolus instrument provides separate measurements in Rayleigh and Mie channels, representing molecular (clear air) and particulate (aerosol and clouds) backscatter, respectively. The combining of information from the two channels offers possibilities to detect and flag difficult, inhomogeneous conditions. The functionality of a baseline version of the developed software has been demonstrated based on simulation of idealized cases.

Document Type:Conference or Workshop Item (Speech)
Title:ADM-Aeolus Level-2B Wind Retrieval Algorithms
Authors:
AuthorsInstitution or Email of Authors
Tan, David G. H.ECMWF
Andersson, ErikECMWF
de Kloe, JosKNMI, De Bilt, NL
Marseille, Gert-JanKNMI, De Bilt, NL
Stoffelen, AdKNMI, De Bilt, NL
Poli, PaulMeteo-France, Toulouse, F
Denneulin, Marie-LaureMeteo-France, Toulouse, F
Dabas, AlainMeteo-France, Toulouse, F
Huber, DoritUNSPECIFIED
Reitebuch, OliverUNSPECIFIED
Flamant, PierreLMD-IPSL, Palaiseau, F
Le Rille, OlivierESA-ESTEC, Noordwijk, NL
Straume, Anne-GreteESA-ESTEC, Noordwijk, NL
Nett, HerbertESA-ESTEC, Noordwijk, NL
Date:July 2007
Journal or Publication Title:Proc. 14th Coherent Laser Radar Conference
Status:Published
Keywords:ADM-Aeolus, Doppler wind lidar, algorithm
Event Title:14. Coherent Laser Radar Conference
Event Location:Snowmass, CO (USA)
Event Type:international Conference
Event Dates:2007-07-08 - 2007-07-13
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 - Projekt ADM II (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Oliver Reitebuch
Deposited On:08 May 2007
Last Modified:12 Dec 2013 20:24

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