atmospheric data from esa
DESCRIPTION
Atmospheric Data from ESA. C. Zehner (ESA). OUTLINE. ERS and ENVISAT missions ESA Atmospheric Instruments ESA Atmospheric Data. 1990 2000 2004 2010. Meteo. METEOSAT Second Generation MSG-1, -2, -3. METEOSAT M-1, 2, 3, 4, 5, 6, 7. in cooperation - PowerPoint PPT PresentationTRANSCRIPT
Atmospheric Data from ESA
C. Zehner (ESA)
OUTLINE
1. ERS and ENVISAT missions
2. ESA Atmospheric Instruments
3. ESA Atmospheric Data
METEOSAT Second Generation MSG-1, -2, -3
METEOSATM-1, 2, 3, 4, 5, 6, 7
METOP-1, -2, -3
Earth Watch
Earth
Explorers
ERS-1, -2
1990 2000 2004 2010
ENVISAT
Scienceto better understand
the Earth
ApplicationsServices
to initiate long term monitoring systems
and services
ADM/Aeolus
SMOS
Earthcare
GMES in cooperation with EC
GOCE(Gravity and Ocean Circulation Explorer)
CryoSat 2 (Polar IceMonitoring)
SWARM
Earthnet: European access to non-ESA missions: Landsat, SeaWifs, NOAA, JERS, MODIS, ALOS, Proba, Bird, Scisat, OMI ...
European users
in cooperationwith EUMETSAT
Meteo
Since 1977
Sentinel 1Sentinel 2/3
Sentinel 4/5
ERS Missions
• 17 years of ERS-1/2 data in archive
• ERS-2: achieved 12 years in orbit in April 2008 (3 years nominal
lifetime)
• Some problems with the platform (gyroscope in 2001, tape recorder in
2003), engineering solutions
• All instruments still functioning well
• Seeking operations funding until 2010 (ensured by the end of 2008)
ERS-1
ERS-2
Operational on ERS-2 since April 95 (predecessor of GOME follow on Instruments on the operational METOP Series, GOME is a small version of SCIAMACHY on ENVISAT)GOME is a spectrometer which collects light arriving from the sun illuminated Earth’s atmosphere/surface in nadir view.
Spectral coverage: 240 - 790 nm with Spectral resolution: 0.2 - 0.4 nm
Global Ozone Monitoring Experiment (GOME)
GOME Scan Pattern from ERS-2
Accuracy of GOME Ozone Measurements
ENVISAT Mission
• Launch1st March 2002
• Orbit 800 km, sun synchronous 10:00 am, i.e. 30 minutes before ERS-2
Advanced Synthetic Aperture Radar
Advanced Along Track Scanning Radiometer
Medium Resolution Imaging Spectrometer
Global Ozone Monitoring by Occultation of Stars
Michelson Interferometric Passive Atmospheric Sounder
Radar Altimeter 2
Microwave Radiometer
Scanning Imaging Absorption Spectrometer for Atmospheric Cartography
Doppler Orbitography and Radio-positioning Integrated by Satellite
to Data Relay Satellite Artemis
to Ground Stations
to provide for continuity of the observations started with the ERS satellites, including those obtained from radar-based observations,
to provide for enhancement of the ERS missions, notably the ocean and ice mission,
to extend the range of parameters observed, to meet the need to increase knowledge of the factors determining the environment,
to make a significant contribution to environmental studies, notably in the areas of atmospheric chemistry and ocean studies (including marine biology).
Mission objectivesMission objectives
Largest European satellite & largest worldwide EO satellite:
- unique combination of 10 instruments addressing land, ocean,
ice and atmosphere studies,
- instruments working nominally
- some concern with altimeter instrument
Satellite OK with long-term operations capabilities: - 45 % of fuel available
(i.e. about 3 years assuming same orbit control strategy: +/- 1 km)
Operations funding until 2010 (extension planned by 2013)
78 different types of ESA data products
250 Gigabytes of data products generated per day at ESA
(+ telemetry)
ENVISAT mission
GOMOS: Global Ozone Monitoring by Occultation of Stars
MIPAS: Michelson Interferometer for Passive Atmospheric
Sounding
SCIAMACHY: SCanning Imaging Absorption SpectroMeter for
Atmospheric ChartograpHY (AO Instrument, provided to ESA by Belgium,
Germany, and The Netherlands)
SCIAMACHY
MIPAS
GOMOS
Envisat Atmospheric Payload
GOMOS will primarily provide highly accurate profiles of stratospheric ozone, preferably at altitudes above 15 km.
Additional profiles:
NO2, NO3, H2O and
Temperature.
60 Km
40 Km
20 Km
F(z)
Fo
z
WavelengthIn
tens
ity
Fo
Inte
nsity
Wavelength
F(zi)
Wavelength
Inte
nsity
F(z1)F(zi)
Wavelength
Tra
nsm
issi
on
Fo
T(zi) =
3 Complementary Atmospheric Instrumentson Envisat
MIPAS, operating in the mid-infrared, will provide highly accurate temperature profiles and a number of key species including most of the NOx family. Making emission measurements it observes both by day and by night.
SCIAMACHY will make unique measurements for its target constituents (profiles and total columns) throughout the stratosphere and troposphere. It will thereby yield the amounts and distributions of trace gas and aerosol in the troposphere.
stratospheric ozone production and destruction cycles
tropospheric O3 and its precursors (NOx, CO, H2O, CH4, UVA, UVB...)
tropospheric / stratospheric exchange processes
the dynamics of the stratosphere
Main Topics to be investigated:
the global distribution of many important greenhouse
gases (H2O, CO2, CH4, N2O, CFCs...) in the lower atmosphere
and thereby investigate their impact on global climate change
the improvement of the accuracy of numerical weather prediction, using the global measurements of pressure, temperature fields, H2O and O3 made in near real time
the physics and chemistry of the mesosphere
tropospheric emissions: air pollution monitoring
ESA Products
Alt
itu
de (
Km
)
03 H20 NO2 NO3 N2O CH4 HNO3 CO CO2 BrO p,T Aerosol100
90
80
70
60
50
40
30
20
10
0
GOMOS MIPAS SCIAMACHY
Troposphere
Stratosphere
O3layer
Stratosphere
Mesosphere
Thermosphere
Operational routine products from GOMOS, MIPAS and SCIAMACHY
The Atmospheric Data Products delivered by ESA to users:
- level 1B products: geolocated and calibrated at engineering level - calibrated spectra
- level 2 products: geolocated at geophysical level - total columns, profiles
- higher level products: e.g. global maps - ESA facilitates its generation through dedicated Programmes like DUE, EOMD, or GMES) – no ESA products!
SCIAMACHY nadir spectrum
O2 CO2
CH4 CO
SCIAMACHY’s – Level 2 Data
SCIAMACHY Level 3/4 Data Product (not provided by ESA)
Comparison of SCIAMACHY O3 profiles with POAM III
10
20
30
40
50
0 1x1012 2x1012 3x1012 4x1012 5x1012 6x1012 7x1012
10 - 40 km O3 columns:
SCIAMACHY: 378 DUPOAM III: 384 DU
Total O3 column:
GOME: 459 DUTOMS: 456 DU
SCIAMACHY - POAM III coincidence on April 25, 2002
SCIA, Rozanov Lat: 56o-59o N, Long: 238o-253o, 18:30 UTC
SCIA, Savigny Lat: 56o-59o N, Long: 238o-253o, 18:30 UTC
POAM, Lat: 62o N, Long: 253o, 2:50 UTC
O3 density [cm -3]
Alti
tude
[km
]
0
10
20
30
40
50
60
0 1x1012
2x1012
3x1012
4x1012
POAM measurement 16, Lat: 57.84, Long: 36.66 SCIA state 9 of Orbit 02221, Lat: 56.4, Long: 50.7
O3 density [cm
-3]
Alti
tude
[km
]
Chlorine Dioxide
GOME Instrument Stability/Sensitivity to measure minor Trace Gases responsible for Ozone Depletion
Air Pollution Measurements – Tropospheric NO2 measured by SCIAMACHY – during the week - weekend
MIPAS CH4 measurements
GOMOS Ozone Measurements in the Mesosphere
Access to ESA Atmospheric Data &User Tool
Data available on ftp server via simple registration procedure - http://eopi.esa.int
Atmospheric User Tool: BEAT http://www.science-and-technology.nl/beat/