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ESA's Space-based Doppler Wind Lidar Mission Aeolus -First Wind and Aerosol Product Assessment Results

Straume, Anne-Grete and Rennie, Michael and Isaksen, Lars and de Kloe, Jos and Marseille, Gert-Jan and Stoffelen, Ad and Flament, Thomas and Stieglitz, Hugo and Dabas, Alain and Huber, Dorit and Reitebuch, Oliver and Lemmerz, Christian and Lux, Oliver and Marksteiner, Uwe and Weiler, Fabian and Witschas, Benjamin and Meringer, Markus and Schmidt, Karsten and Nikolaus, Ines and Geiss, Alexander and Flamant, Pierre and Kanitz, Thomas and Wernham, Denny and von Bismarck, Jonas and Bley, Sebastian and Fehr, Thorsten and Floberghagen, Rune and Parrinello, Tommaso (2019) ESA's Space-based Doppler Wind Lidar Mission Aeolus -First Wind and Aerosol Product Assessment Results. ILRC29, 24.-28. Juni 2019, Heifei, China.

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Official URL: http://www.ilrc29.cn/dct/page/65581

Abstract

The European Space Agency (ESA) wind mission, Aeolus, hosts the first space-based Doppler Wind Lidar (DWL) world-wide. The primary mission objective is to demonstrate the DWL technique for measuring wind profiles from space, intended for assimilation in Numerical Weather Prediction (NWP) models. The wind observations will also be used to advance atmospheric dynamics research and for evaluation of climate models. Mission spinoff products are profiles of cloud and aerosol optical properties. Aeolus was launched on 22 August 2018, and the Atmospheric LAser Doppler INstrument (Aladin) instrument switch-on was completed with first high energy output in wind mode on 4 September 2018. The on-ground data processing facility worked excellent, allowing L2 product output in near-real-time from the start of the mission. First results from the wind profile product (L2B) assessment show that the winds are of very high quality, with random errors in the free Troposphere within (cloud/aerosol backscatter winds: 2.1 m/s) and larger (molecular backscatter winds: 4.3 m/s) than the requirements (2.5 m/s), but still allowing significant positive impact in first preliminary NWP impact experiments. The higher than expected random errors at the time of writing are amongst others due to a lower instrument outand input photon budget than designed. The instrument calibration is working well, and some of the data processing steps are currently being refined to allow to fully correct instrument alignment related drifts and elevated detector dark currents causing biases in the first data product version. The optical properties spin-off product (L2A) is being compared e.g. to NWP model clouds, air quality model forecasts, and collocated ground-based observations. Features including optically thick and thin particle and hydrometeor layers are clearly identified and are being validated.

Item URL in elib:https://elib.dlr.de/134209/
Document Type:Conference or Workshop Item (Speech)
Title:ESA's Space-based Doppler Wind Lidar Mission Aeolus -First Wind and Aerosol Product Assessment Results
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Straume, Anne-GreteESA/ESTEC, Noordwijk, NLUNSPECIFIED
Rennie, MichaelECMWF, Reading, UKUNSPECIFIED
Isaksen, LarsECMWF, Reading, UKUNSPECIFIED
de Kloe, JosKNMI, de Bilt, NLUNSPECIFIED
Marseille, Gert-JanKNMI, de Bilt, NLUNSPECIFIED
Stoffelen, AdKNMI, de Bilt, NLUNSPECIFIED
Flament, ThomasCNRM/Meteo-France, Toulouse, FRUNSPECIFIED
Stieglitz, HugoCNRM/Meteo-France, Toulouse, FRUNSPECIFIED
Dabas, AlainCNRM/Meteo-France, Toulouse, FRUNSPECIFIED
Huber, DoritDoRIT, OberpfaffenhofenUNSPECIFIED
Reitebuch, OliverDLR, IPAhttps://orcid.org/0000-0002-8503-0094
Lemmerz, ChristianDLR, IPAUNSPECIFIED
Lux, OliverDLR, IPAhttps://orcid.org/0000-0003-1491-0323
Marksteiner, UweDLR, IPAhttps://orcid.org/0000-0002-4335-922X
Weiler, FabianDLR, IPAUNSPECIFIED
Witschas, BenjaminDLR, IPAhttps://orcid.org/0000-0001-7993-1470
Meringer, MarkusDLR, IMFhttps://orcid.org/0000-0001-8526-2429
Schmidt, KarstenDLR, IMFhttps://orcid.org/0000-0002-3335-6076
Nikolaus, InesHochschule MünchenUNSPECIFIED
Geiss, AlexanderUniv. MünchenUNSPECIFIED
Flamant, PierreCNRS/IPSL, Paris, FRUNSPECIFIED
Kanitz, ThomasESA/ESTEC, Noordwijk, NLUNSPECIFIED
Wernham, DennyESA/ESTEC, Noordwijk, NLUNSPECIFIED
von Bismarck, JonasESA/ESRIN, Frascati, ITUNSPECIFIED
Bley, SebastianESA/ESRIN, Frascati, ITUNSPECIFIED
Fehr, ThorstenESA/ESTEC, Noordwijk, NLUNSPECIFIED
Floberghagen, RuneESA/ESRIN, Frascati, ITUNSPECIFIED
Parrinello, TommasoESA/ESRIN, Frascati, ITUNSPECIFIED
Date:June 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-4
Status:Published
Keywords:Aeolus, Doppler wind lidar, numerical weather prediction
Event Title:ILRC29
Event Location:Heifei, China
Event Type:international Conference
Event Dates:24.-28. Juni 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Projekt ADM
Location: Neustrelitz , Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Meringer, Dr.rer.nat. Markus
Deposited On:03 Mar 2020 13:06
Last Modified:13 Mar 2020 19:18

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