Contributions of DLR

1
Contributions of DLR Partners to the IPYM.
Gottwald, DLR-IMFIPY Space Task Group, Geneva,
17-19 January 2007
2
Missions and Facilities

• DLR in cooperation with national
  international partners operates various
  missions and facilities
• satellites
• ground stations
• aircraft
• sensors
• data systems (processors, archives, data
  dissemination)
• usage for IPY is either in framework of
• regular operations (e.g. satellite sensors, data
  systems)
• dedicated measurements campaigns (e.g. aircraft
  sensors)
• some satellite missions provide continuous data
  from polar regions (e.g. SCIAMACHY, GOME/GOME-2)
• DLR science groups cooperate with partners in IPY
  related programs (also using non-DLR facilities)
• Note the following list is a summary but does
  not claim completeness

3
Missions and Facilities

• Satellite missions
• SCIAMACHY
• TerraSAR-X
• TanDEM-X
• GRACE
• CHAMP (GFZ)
• GOME (ESA)
• GOME-2 (EUMETSAT)
• Ground stations
• OHiggins
• Oberpfaffenhofen
• Neustrelitz
• Mobile transportable

• Aircraft and sensors
• Falcon
• DO228
• HALO
• New sensors
• ARES
• GRIPS

4
SCIAMACHY

• atmospheric science instrument on ENVISAT
• German-Dutch-Belgian contribution (AO instrument)
• absorption spectroscopy UV-Vis-NIR-SWIR (214 nm
  2386 nm)
• atmospheric geophysical parameters from
  troposphere to mesosphere
• various measurement modes
• nadir
• limb
• solar and lunar occultation
• sun-synchronous orbit
• altitude 800 km
• inclination 98.5
• orbital period 100 min
• local descending node crossing time 10 am
• continuous measurements (duty cycle gt 90)
• max. spatial resolution
• 26 km ? 30 km (nadir, along-track ? across-track)
• 230 km ? 2.6 km (limb, across-track ? height)

5
SCIAMACHY

• ENVISAT/SCIAMACHY operations extended until 2010
• geophysical parameters available via ENVISAT
  ground segment and scientific facilities, e.g.
• http//eopi.esa.int/ (ESA EO Principal
  Investigator Portal)
• http//wdc.dlr.de/ (World Data Center for Remote
  Sensing of the Atmosphere)
• http//www.physik.uni-bremen.de/ (IUP, University
  of Bremen)
• measurement planning instrument configuration
  (in case of specific IPY requ.)
• http//atmos.caf.dlr.de/projects/scops/
  (SCIAMACHY operations support)

Ozone hole 2002 2005 (DLR-DFD/KA)
6
TerraSAR-X

• national radar mission
• provision of high resolution X-band data
• various imaging modes
• stripmap (30 km swath width, 3 m resolution)
• scanSAR (100 km swath width, 16 m resolution)
• spotlight (5 km ? 10 km scene, 1 m resolution)
• dual receive antenna mode (experimental)
• sun-synchronous orbit
• altitude 514 km
• inclination 97.4
• orbital period 95 min
• 11 days repeat cycle
• launch February 27, 2007
• mission lifetime 5 years

7
TerraSAR-X

• access for scientific purposes via a selection
  process
• pre-launch AO (closed in October 2005)
• further AO planned (end 2007)
• general proposal submission interface (summer
  2007)
• several proposals for polar research
• ice sheets
• sea ice
• glaciers ice caps
• snow
• contact achim.roth_at_dlr.de

8
TanDEM-X

• national radar mission
• provision of high resolution X-band data
• various imaging modes
• as TerraSAR-X
• bi-static with TerraSAR-X
• sun-synchronous orbit as TerraSAR-X
• (Helix formation)
• launch early 2009
• mission lifetime gt 3 years
• DEM over Antarctica
• science team with approx.
• 1000 registered PIs
• scientific user requirements survey
• performed
• contact irena.hajnsek_at_dlr.de

9
GRACE

• gravity and climate mission
• joint US-German twin spacecraft
• mission
• sun-synchronous orbit
• altitude 500 km
• inclination 89.1
• launched March 17, 2002
• mission lifetime gt 2010
• scientific applications include
• solid Earth
• ocean currents
• water movement
• sea-level heights
• movement and mass of ice sheets
• data access via registered account (European
  site http//isdc.gfz-potsdam.de)

10
CHAMP

• gravity, climate and magnetic field mission
• sun-synchronous orbit
• altitude 454 km
• inclination 87
• launched July 15, 2000
• lifetime until mid 2009
• scientific applications include
• structure and dynamics of solid Earth
• ocean circulation
• changes in global water balance
• sea-level changes
• Atmosphere/ionosphere sounding
• data access via registered account
  (http//isdc.gfz-potsdam.de)

11
GOME and GOME-2

• atmospheric science instruments
• GOME ESA ERS-2 mission, GOME-2 EUMETSAT MetOp
  mission
• absorption spectroscopy UV-Vis (240 nm 790 nm)
• measurement mode nadir
• sun-synchronous orbit
• altitude 800 km (ERS-2),
• 817 km (MetOp)
• inclination 98.5 (ERS-2),
• 98.7 (MetOp)
• orbital period 100 min
• local descending node
• crossing time 1030 am (ERS-2),
• 930 am (MetOp)
• launch April 21, 1995 (ERS-2),
• October 19, 2006 (MetOp)

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GOME and GOME-2

• DLR-IMF/DFD hosts
• algorithm processor development
• processing centres in ERS-2 and MetOp ground
  segments
• GOME D-PAF
• GOME-2 Ozone monitoring SAF (hosted by FMI)
• goal is to obtain long time series of atmospheric
  geophysical parameters

13
FALCON Aircraft

• research aircraft Dassault Falcon 20-E5 in
  operation since 1976
• home base is Flight Facility at
  Oberfaffenhofen/Germany
• flexible multipurpose platform for scientific
  applications
• twin jet with pressurized cabin
• maximum altitude 12.5 km
• maximum range approx. 3000 km
• payload capacity incl. operations personnel
  1500 kg
• various sensors
• basic sensor package
• (meteorological)
• optional sensors
• atmospheric trace
• gases aerosol
• wind LIDAR

14
FALCON Aircraft IPY Campaigns

• several campaigns planned in framework of IPY
  with DLR participation (DLR-IPA)
• ASTAR (IPY 244 coord. AWI)
• Falcon and AWI DO-228
• March-April 2007
• POLARCAT (IPY 244 coord. NILU)
• Falcon and other aircraft
• summer 2008
• THORPEX (IPY 394 coord.
• University of Oslo)
• Falcon
• February-March 2008
• ORACLE (IPY 542 coord. AWI)
• status is tbd

15
DO228 Aircraft

• home base is Flight Facility at
  Oberfaffenhofen/Germany
• flexible multipurpose platform for scientific
  applications
• twin engine aircraft with unpressurized cabin
• maximum altitude approx. 7.5 km
• maximum range approx. 3200 km
• maximum payload approx. 1300 kg
• sensors
• basic sensor package
• (meteorological)
• optional sensors
• SAR
• optical

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DO228 Aircraft Sensors

• E-SAR (Experimental Synthetic Aperture System)
• innovative SAR modes / configurations novel SAR
  techniques / applications
• multi-spectral SAR
• SAR polarimetry / interferometry / tomography
• polarimetric SAR interferometry
• differential interferometry
• preparatory experiments for future SAR satellite
  missions

• flexible multi-channel SAR
• P-, L-, C-, and X-band
• fully polarimetric P- L-band
• high-resolution Imaging
• along- across-track single-pass InSAR in
  X-band
• contact irena.hajnsek_at_dlr.de

17
HALO Aircraft

• new High Altitude and Long Range research
  aircraft
• operational in 2009
• home base will be Flight Facility at
  Oberfaffenhofen/Germany
• maximum altitude approx. 15 km
• maximum range gt 8000 km
• payload capacity 3000 kg

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Ground Stations

• DLR operates ground stations for
• data reception
• spacecraft commanding
• reception station network includes
• Neustrelitz/Germany
• Oberfaffenhofen/Germany
• OHiggins/Antarctica
• transportable
• mobile stations

Ny-Alesund
Neustrelitz
Oberpfaffenhofen
Chetumal
Recife
Current Locations
FormerLocations
Network of DLR data reception ground stations
OHiggins
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Ground Stations

• Neustrelitz
• L/S/X-band, 3 antennas with 7.3 m and L/S-band
  with 4 m
• Oberfaffenhofen/Germany
• L-band, 2 antennas with 4 m 2.4 m and X-band
  with 3.6 m

• OHiggins/Antarctica
• L/S/X-band with 9 m
• operated on campaign basis
• 90-120 days/year, for TanDEM-X full year
• mobile stations
• Ny Ålesund/Norway, S-band
• with 4 m (with GFZ)
• Recife/Brazil, L-band with 0.9 m
• transportable station
• Chetumal/Mexico, L/S/X-band
• with 9 m

OHiggins ground station
20
New Sensors - ARES

• Airborne Reflective Emissive Spectrometer
• hyperspectral sensor with 160 bands from VIS to
  thermal IR (470 nm 12 mm)
• operational in 2007
• scientific applications include
• terrestrial ecosystems
• soil sciences
• geology
• forestry
• precursor of spaceborne hyperspectral sensors
• offered through national and international
• programs or on commercial basis

21
New Sensors - GRIPS

• ground based IR spectrometer
• study of geophysical parameters of the mesopause
  (temperature, gravity waves)
• new GRIPS sensor to be installed at Neumayer
  station (cooperation between DLR and AWI)
• operational in 2008/2009

GRIPS3 at Schneefernerhaus/ Zugspitze