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Missions and Facilities

Contributions of DLR & Partners to the IPY M. Gottwald, DLR-IMF IPY Space Task Group, Geneva, 17-19 January 2007. Missions and Facilities. DLR – in cooperation with national & international partners – operates various missions and facilities satellites ground stations aircraft sensors

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Missions and Facilities

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  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 • Aircraft and sensors • Falcon • DO228 • HALO • New sensors • ARES • GRIPS • Satellite missions • SCIAMACHY • TerraSAR-X • TanDEM-X • GRACE • CHAMP (GFZ) • GOME (ESA) • GOME-2 (EUMETSAT) • Ground stations • O‘Higgins • Oberpfaffenhofen • Neustrelitz • Mobile & transportable

  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 > 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@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 > 3 years • DEM over Antarctica • science team with approx. 1000 registered PIs • scientific user requirements survey performed • contact: irena.hajnsek@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 > 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 = 10:30 am (ERS-2), 9:30 am (MetOp) • launch: April 21, 1995 (ERS-2), October 19, 2006 (MetOp)

  12. 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

  16. 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@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 > 8000 km payload capacity = 3000 kg

  18. Ground Stations • DLR operates ground stations for • data reception • spacecraft commanding • reception station network includes • Neustrelitz/Germany • Oberfaffenhofen/Germany • O‘Higgins/Antarctica • transportable & mobile stations Ny-Alesund Neustrelitz Oberpfaffenhofen Chetumal Recife FormerLocations Current Locations Network of DLR data reception ground stations O‘Higgins

  19. 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 • O‘Higgins/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 O‘Higgins 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

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