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Finalized projects

ASIRIS

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A GNSS station with a reflectometry receiver was set up at Kongsfjorden (Spitsbergen), 78°54’14’’N, 11°52’37’’E, 512m above ellipsoid (WGS-84). This permanent station is operated by GFZ in collaboration with NPI (Norwegian Polar Institute) at the Zeppelin mountain outpost. It accumulates a data set since summer 2013 observing reflections over the fjord and the adjacent land surface. more to: ASIRIS

ATMO-CHAMP/GRACE

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The research project ATMO-CHAMP/GRACE was funded within the GEOTECHNOLOGIEN programme of BMBF (2009-2011). more to: ATMO-CHAMP/GRACE

COPS-GRID

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The research projects COPS-GRID ("High-resolution Reanalyses and Impact Studies for Improving Process Understanding and Precipitation Forecast Skill based on the COPS Data Set") followed by APRO-GRAVAR ("Assimilation and Process Studies for selected COPS IOPs using GPS STD and radar radial velocities in the WRF-Var system") were funded within the DFG priority programme "Quantitative precipitation forecast, SPP 1167). more to: COPS-GRID

German- Indonesian Tsunami Early Warning System

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Within the GITEWS project a feasibility study for satellite-based tsunami detection utilizing GNSS-R measurements was performed. more to: German- Indonesian Tsunami Early Warning System

GARCA

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GARCA was a scientific study, funded by the European Space Agency ESA. It was contributing to the preparation of the GEROS-ISS [1] Mission for the application of the innovative GNSS-Reflectometry (GNSS-R) aboard the International Space Station. Within GEROS-ISS signals from the Global Navigation Satellite Systems (GNSS) are foreseen to be exploited for Remote sensing of Ocean, Ice and Land surfaces but also for atmosphere/ionosphere sounding on a near-global scale to derive information on Climate Change. more to: GARCA

CHAMP RO

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The German geoscience satellite CHAMP was launched on July 15, 2000 from the Russian COSMODROME Plesetsk, Russia (62.50 N, 40.30 E) into an almost circular, near polar orbit with an initial altitude of 454 km (eccentricity=0.004, inclination=87.2°). The scientific project was under lead from GFZ. The main goals are the determination Earth's gravity and magnetic field and the application of the GPS Radio Occultation (RO) technique for precise atmospheric sounding on a global scale. more to: CHAMP RO

GEOHALO

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GEOHALO was a geoscientific mission aboard the German research aircraft HALO, which was realized in 2012. Part of the mission were GNSS remote sensing measurements for the determination of the sea surface height of the Mediterranean Sea. more to: GEOHALO

Gfg²

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Gfg², funded by the European Union, is an international research-related project with focus on the use of GNSS (Global Navigation Satellite Systems) for Earth Observation in a more general sense. more to: Gfg²

GNSS+R 2015

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The 8th workshop on GNSS reflectometry (GNSS+R 2015) will take place at the Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences in Potsdam on May 11–13, 2015. more to: GNSS+R 2015

GPS-SIDS

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Disko Bay is situated west of the Greenland coast. Near by the port of Godhavn (69.2717° N; 53.5435° W) a GPS Reflectometry setup was installed. On a cliff about 670 m above sea level, observations over the bay were recorded for several months (in winter season 2008/09). Regular changes of the ocean surface due to ocean tides and sea-ice coverage could be examined with reflection data. This study has been initiated by ESA connected to further measurements of dry snow properties at Dome-C, East Antarctica. more to: GPS-SIDS

GORS Receiver

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The GNSS receiver for occultation, reflectometry and scatterometry (GORS) has been designed and developed within the framework of the GITEWS project (German Indonesian Tsunami Early Warning System Project, 2006 bis 2009) by the Russian-American manufacturer JAVAD GNSS for the project partners GFZ and DLR. more to: GORS Receiver

IDEAL-GRACE

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The research project IDEAL-GRACE is funded within the DFG priority program 1257 "Mass Transports and and Mass Distribution in the Earth system. Within the project the influence of atmospheric data and their errors to determination of GRACE based geoid models is investigated. more to: IDEAL-GRACE

OpenGPS

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The "OpenGPS" receiver is a GFZ-developed research instrument focusing on the scientific exploitation of reflected GPS signals. Its hardware and software concept is based on the "OpenSourceGPS" project initiated by C. Kelley in 2001. more to: OpenGPS

PMARS

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A prominent feature of climate change is an increase in the frequency of extreme weather situations (like droughts or flooding events). Therefore observations of water level and soil moisture are required in order to improve the hydrological models, especially in areas with agricultural background like Morocco to better understand and predict these events. more to: PMARS

Walchensee Experiment

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Fahrenberg is a mountain in the Bavarian Alps (47.61° N; 11.32° E). Its summit rises 1625 m above mean sea level. At the foot of the moutain lake Walchensee spreads on an area of about 16 km² with a lake level of about 800 m above mean sea level. The vicinity of lake and mountain offers an ideal location for Reflectometry experiments with the GORS receiver. more to: Walchensee Experiment

WISDOM

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WISDOM - Water-related Information System for the Sustainable Development of the Mekong Delta WISDOM more to: WISDOM

Zeppelin

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In October 2010 and September 2012 two airship flight campaigns for GNSS reflectometry (GNSS-R) were organized by GFZ in cooperation with DLR and Zeppelin Luftschifftechnik (ZLT). The flights were performed in the Lake Constance region near Friedrichshafen, Southern Germany. more to: Zeppelin

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