Status of the ADM-Aeolus wind lidar mission

41 Pages·2015·12.6 MB·English

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