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Recent projects

Atmospheric Model


The Atmospheric Model for the GNSS (the component which describes the propagation of the radio signals in the atmosphere) consists of a tropospheric and ionospheric part. more to: Atmospheric Model



AtmoSat aims at investigating the impact of chemical and physical processes in the middle atmosphere between five and hundred kilometres on regional and global climates. The joint operation of the Karlsruher Instituts für Technologie (KIT) and the Forschungszentrums Jülich (FZJ), with the participation of the GFZ, combines a satellite observation system and a related data infrastructure. The project now received the highest rating by a committee of the German Science Council. The Science Council advises the German Government on the development of science and research. more to: AtmoSat



FORMOSAT-3/COSMIC is a joint Taiwan-U.S. project. The scientific foundation for FORMOSAT-3/COSMIC is the radio occultation (limb sounding) technique which was developed by the Jet Propulsion Laboratory (JPL) and Stanford University in the late 1960s to study planetary atmospheres. more to: COSMIC RO



GEROS-ISS is an innovative experiment for climate research, which was proposed within a call of the European Space Agency ESA 2011 for installation at the International Space Station ISS. The proposal of the international team from Germany, Sweden, Spain, U.S., Denmark, and Switzerland was the only selected from ESA out of about 25 submitted proposals for further studies. more to: GEROS-ISS



Coupling processes between the ionosphere and the neutral atmosphere play an important role for the dynamics of the upper atmosphere. Recent progress in understanding the related processes has been achieved since low-Earth orbiting satellites provide continuous accurate measurements of thermospheric and ionospheric parameters like mass density, zonal winds and electron density profiles, respectively. Within this project, we plan to observe the global sporadic E occurrence in quantity and also in its quality. more to: GISELA

GNSS Soil Moisture


The estimation of the soil moisture with GNSS's data seems to be a promising methodology to obtain field averages of soil moisture at high temporal resolution. more to: GNSS Soil Moisture

GNSS Remote Sensing with Small Satellites


A major motivation for the small satellite activities at GFZ was the extremely successful GPS radio occultation experiment aboard the CHAMP satellite. Later, the application of GNSS-R within future generation Tsunami Early warning systems was investigate in more details as part of the GITEWS project. more to: GNSS Remote Sensing with Small Satellites

GNSS Tomography


The GNSS tomography is an attempt to utilize the existing infrastructure of GNSS satellites and networks of geodetic reference stations for meteorological applications. Small deviations of the GNSS signals due to the atmospheric water vapour are used to evaluate the amount of water vapour between a GNSS satellite and each single GNSS ground station. more to: GNSS Tomography



The objective of the U.S.-German GRACE satellite mission (Gravity Recovery and Climate Experiment) is to map the global gravity field with unprecedented accuracy. more to: GRACE RO



The Global Climate Observing System (GCOS) Reference Upper Air Network (GRUAN) of the World Meteorological Organization (WMO) is an international observing network, designed to meet climate requirements. Upper air observations within the GRUAN network will provide long-term high-quality climate records. more to: GRUAN



G-TERN stands for „GNSS Transpolar Earth Reflectometry moNitoring system“. It is an innovative climate research experiment, which was proposed within the recent ESA call for Earth Explorer missions (9). G-TERN was proposed by an international team of 25 scientists from 11 countries and an industry consortium of 7 partners. The proposal was submitted June 15, 2017. The mission is jointly coordinated by Estel Cardellach (IEEC, Spain) and Jens Wickert (GFZ). The industry consortium is led by OHB, Germany. more to: G-TERN



The Meteorological Operational satellite programme (MetOp) is Europe's first polar-orbiting satellite system dedicated to operational meteorology. The data are used to monitor climate and improve weather forecasting. MetOp is a series of three satellites to be launched sequentially over 14 years and forms the space segment of EUMETSAT's Polar System (EPS). The satellite MetOp-A was launched October 19, 2006 and MetOp-B September 17, 2012. MetOp-C is expected to be launched in 2018. more to: MetOp-GRAS



The abbreviation MuSE stands for "Multi-satellite ionosphere-plasmasphere electron density reconstruction". It is an ionosphere/plasmasphere related research project of the DFG within the priority program 1788 "Dynamic Earth". more to: MuSE

Ocean Winds


Current meteorological models dramatically fail to resolve the fast storm growth evolutions in severe weather events. This fact is caused by the lack of high-resolution observational data in the current operational Data Assimilation (DA) systems and deficiencies in the collection of real-time data from inner core of hurricanes. This fact is due to the heavy clouds and intense precipitations. more to: Ocean Winds



The aim of this project is to retrieve main parameters of sea ice (i.e. thickness, concentration, surface roughness and ice permitivity). These parameters can be combined to help characterize different ice types including new ice, young ice, thin first-year ice, first-year ice, and multiyear ice. Sea ice thickness is a key parameter for classification and characterization of sea ice masses, which influence the temperature and circulation pattern of both the ocean and atmosphere and thus can be used for analysis of the Earth’s climate. more to: ReGID



The GPS radio occultation data of the German TanDEM-X satellite are analysed and globally distributed vertical atmospheric profiles (bending angles, refractivity, temperature, water vapor) are derived and provided for the international user community. TanDEM-X was launched June 21, 2010 and forms together with TerraSAR-X (launch July 15, 2007) an unique tandem-satellite configuration. more to: TanDEM-X RO



TerraSAR-X is a German satellite for Earth Observation, which was launched on July 14, 2007. The mission duration was foreseen to be 5 years. TerraSAR-X carries an innovative high resolution x-band sensor for imaging with resolution up to 1 m. more to: TerraSAR-X RO

Zusatzinformationen / Extras

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