Status of the ADM-Aeolus wind lidar mission PDF
Preview Status of the ADM-Aeolus wind lidar mission
Status of the ADM-Aeolus wind lidar mission A.G. Straume1, A. Elfving1, F. de Bruin1, A. Culoma1, T. Kanitz1, G. Labruyere1 , L. Mondin1, D. Wernham1, D. Schuettemeyer1, F. Buscaglione2, A. Dehn2, S. Casadio2, W. Lengert2 1ESA-ESTEC, The Netherlands, 2ESA-ESRIN, Italy http://www.esa.int/esaLP/LPadmaeolus.html Aeolus teams 1. The Aeolus Mission Advisory Group • Angela Benedetti / ECMWF • Alain Dabas / MeteoFrance • Pierre Flamant / IPSL • Mary Forsythe / MetOffice • Erland Källén / ECMWF • Heiner Körnich / MISU • Harald Schyberg / met.no • Ad Stoffelen / KNMI • Oliver Reitebuch / DLR • Michael Vaughan / Lidar & Optics Associates 2. The Aeolus L1b, L2a and L2b algorithm development teams (DLR, ECMWF, IPSL, KNMI, MétéoFrance) 3. ESA Aeolus project and support teams (ESTEC, ESRIN, ESOC) 4. Airbus Defence and Space, and subcontractors 12th IWWG, Copenhagen, 16-20 June 2014 Outline 1. ESA’s Earth Observation programme 2. Scientific motivation for ESA’s Doppler wind lidar mission 3. Instrument and measurement principle 4. Mission products and their envisaged use 5. Campaigns and CAL/VAL 6. Programmatic status 7. Conclusions 12th IWWG, Copenhagen, 16-20 June 2014 ESA’s Earth Observation Programme ERS1 Meteosat ERS2 Earth Explorers Envisat Earth Watch Research driven Service driven Core Opportunity Missions Missions OperaConal COPERNICUS Meteorology GOCE CryoSat 2 SenJnel 1 MSG 2009 2010 SenJnel 2 MTG SenJnel 3 Metop SenJnel 4 ADM-‐Aeolus SMOS Metop SG SenJnel 5/5p 2015 2009 www.esa.int/livingplanet EarthCARE Swarm 2016 2013 2 candidates BIOMASS ? EE8 2020 CarbonSat, FLEX 2022 12th IWWG, Copenhagen, 16-20 June 2014 The importance of direct wind observations Global temperature soundings ROSSBY RADIUS OF DEFORMATION gh R = 2ωsinϕ Direct wind profile soundings (radiosondes) g: gravitational acceleration, h: altitude, ω: angular velocity of Earth’s rotation, φ: latitude (here 45°) 12th IWWG, Copenhagen, 16-20 June 2014 Aeolus sampling in 1 week Aeolus objectives What are the scientific requirements? Improve our understanding and predictability of 1. Atmospheric dynamics and global atmospheric transport 2. Global cycling of energy, water, aerosols, chemicals How are they achieved? Improved atmospheric analysis fields through use of Aeolus winds, in particular: 1. Tropics: Wind fields governs dynamics 2. Mid-latitudes: Intense storm developments and mesoscale circulation What are the benefits? 1. Better initial conditions for weather forecasting 2. Improved parameterisation and modelling of atmospheric processes in climate and forecast models Demonstrate the capabilities of space-based Doppler Wind LIDARs (DWLs) for global wind profiling and its potential for operational use 12th IWWG, Copenhagen, 16-20 June 2014 Aeolus Mission Doppler Wind Lidar Direct DetecJon System High Spectral ResoluJon 355 nm 12th IWWG, Copenhagen, 16-20 June 2014 Aeolus measurement concept Monostatic emit-receive path (shown skewed) (= height) (ALADIN) 80 mJ, 50 Hz Wind and atmospheric optical properties profile measurements are derived from the Doppler shifted signals that are back- scattered along the lidar line-of- sight (LOS) 12th IWWG, Copenhagen, 16-20 June 2014 Measurement baseline Old measurement baseline 1. High Spectral ResoluCon: Separate molecular and a Example of ADM- parCcle backscaQer Aeolus vertical sampling receivers 2. UV (355 nm , circularly polarized) 3. Cross-‐linear polarized light detected in polarizing scenes 4. Ground calibraCon (nadir and off-‐nadir) 5. Adjustable verCcal sampling of atmospheric layers Δz: 0.25–2 km 12th IWWG, Copenhagen, 16-20 June 2014 z: 0-‐30 km Measurement baseline NOeldw m meaesausruemreemnte bnats bealinsee line 1. High Spectral ResoluCon: Separate molecular and a Example of ADM- parCcle backscaQer Aeolus vertical sampling receivers 2. UV (355 nm , circularly polarized) 3. Cross-‐linear polarized light detected in polarizing scenes 4. Ground calibraCon (nadir and off-‐nadir) 5. Adjustable verCcal sampling of atmospheric layers Δz: 0.25–2 km 12th IWWG, Copenhagen, 16-20 June 2014 z: 0-‐30 km
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