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ISDC Collaboration Projects

CHAMP | GRACE | GNSS | GGP | GGOS | GPS-PDR | ICGEM | TSX-TOR| TanDEM-X
   
CHAMP Project Homepage The GFZ CHAMP (CHAllenging Mini-satellite Payload) low earth orbit satellite, mainly designed and operated by different German companies and institutions has been launched in July 2000. CHAMP is providing for the first time simultaneously highly precise gravity and magnetic field measurements over a 8 years period. This allows the tracing of spatial and time variations of both fields for a long time. The provision of regularly radio occultation measurements of the atmosphere and ionosphere are used in a pre-operational phase for weather prediction and space weather monitoring purposes.
CHAMP ISDC | MyRetrieval | Product Browser | Product Description | Document List
   
GRACE Project Homepage The twin GRACE (Gravity Recover And Climate Experiment) low earth orbit satellites have been launched in March, 2002. The main scientific objective of this joint NASA, DLR partnership project is the regular outreach of accurate global high-resolution Earth's gravity field models for the study of gravity time variations caused by deep ocean currents, ocean bottom pressure changes, sea level rise, sea and ice mass variations, soil moisture changes, groundwater transport, and land density. Another scientific objective is to regularly provide atmosphere and ionosphere profiles measured using radio occultation techniques.
GRACE ISDC | MyRetrieval | Product Browser | Product Description | Document List | Newsletter | Software
   
GNSS Project Homepage The term GNSS (Global Navigation Satellite Systems) comprises the different navigation satellite systems like GPS, GLONAS and the future Galileo as well as rawdata from GNSS microwave receivers and processed or derived higher level products and required auxiliary data. In the first phase only selected products like observation data, navigation data (ephemeriden), meteorological data as well as quality data with a limited spatial coverage are provided by the GNSS ISDC.
GNSS ISDC | MyRetrieval | Product Browser | Product Description | Document List | Newsletter | Software
   
GGP Project Homepage The GGP Project (Global Geodynamic Project) is a long term initiative in order to establish a world wide network of super conducting gravimeter (SG) stations by the voluntary consolidation of unique observatories using such devices. The first phase of the project ran from July 1997 to July 2003. The second phase continuing this project will last until 2007. The high accuracy gravity data are used for study of global motions of the entire Earth as well as for the estimation of local gravity effects caused by atmospheric pressure and groundwater. By the start of high accurate satellite gravity missions CHAMP and GNSS, the SG data got a new impact for the validation and calibration of these missions.
GGP ISDC | MyRetrieval | Product Browser | Product Description | Document List | Newsletter | Software
   
GGSP ISDC | MyRetrieval | Product Browser | Product Description | Document List
   
GGOS Project Homepage GGOS is the Global Geodetic Observing System of the International Association of Geodesy (IAG). It provides observations of the three fundamental geodetic observables and their variations, that is, the Earth's shape, the Earth's gravity field and the Earth's rotational motion. GGOS integrates different geodetic techniques, different models, different approaches in order to ensure a long-term, precise monitoring of the geodetic observables in agreement with the Integrated Global Observing Strategy (IGOS). GGOS provides the observational basis to maintain a stable, accurate and global reference frame and in this function is crucial for all Earth observation and many practical applications.
GGOS ISDC | MyRetrieval | Product Browser | Product Description | Document List |
   
GPS-PDR Project Homepage During the time span of more than a decade since the official start of the IGS (International GNSS Service) in 1994, considerable improvements in the processing strategies and modeling of global GPS solutions were achieved. Soon the results of the GPS Potsdam/Dresden Reprocessing (GPS-PDR) project are provided using the GPS-PDR ISDC.
GPS-PDR ISDC | MyRetrieval | Product Browser | Product Description | Document List |
   
ICGEM Project Homepage The ICGEM at the GFZ Potsdam is one of six centres of the International Gravity Field Service (IGFS) of the International Association of Geodesy (IAG). The ISDC is starting a cooperation with the ICGEM in order to improve the quality of data and services by collecting and associating specific metadata to the gravity field models. Another objective of the cooperation is the integration of this gravity field products into the ISDC catalog system and archives. Both web sites, the ICGEM offering excellent gravity model viualisation services as well the planed ICGEM ISDC will exist in parallel.
ICGEM ISDC | MyRetrieval | Product Browser | Product Description | Document List
   
TerraSAR-X Project Homepage TerraSAR-X (TSX), the first German long-duration radar mission, is being realized in the frame of a public-private partnership between the German Aerospace Center (DLR) and Astrium GmbH. The spacecraft will carry as primary instrument an X-band imaging system and a high-performance antenna system, enabling different operational modes. The spacecraft will be injected into a sun-synchronous, circular dusk-dawn orbit at approximately 514 km altitude. The launch is foreseen for the end of October 2006 from the cosmodrome Baikonur. The mission is designed for a five year lifetime.
TSX-TOR ISDC | MyRetrieval | Product Browser| Product Description | Document List
   
TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) is the first bistatic SAR mission in space. TanDEM-X and its twin satellite TerraSAR-X are flying in a closely controlled formation with typical distances between 250 and 500 meters. Primary mission objective is the generation of a consistent global digital elevation model with few meter level height accuracy. Beyond that, GFZ equipped TanDEM-X with a geodetic grade GPS receiver for precise baseline determination and for radio occultation measurements. TanDEM-X was launched on June 21, 2010 for a 5 year mission lifetime.
TanDEM-X ISDC | MyRetrieval | Product Browser|
   

 


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Product Statistics
In ISDC archive are stored:
  • 21.04 TB of data
  • 34.11 Mio products
(update: 2018-06-20 04:30:01)