Application research

Atmosphere Climate Experiment Plus – ACE+

ACE+ is the response to ESA´s 2nd Call for Earth Explorer Opportunity Missions in 2001. ACE+ will considerably advance our knowledge about atmosphere physics and climate change processes. The mission will demonstrate a highly innovative approach using radio occultations for globally measuring profiles of humidity and temperature throughout the atmosphere and stratosphere.

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Realization of terrestrial and celestial reference systems using space geodetic observations

During the last 30 years a global network of stations equipped with instruments for high precision observation of artificial Earth satellites and very distant radio sources has been established. Some of the satellites are carrying payloads, for example radar altimeters, where the application requires that the radial component of the satellite orbit must be determined to a precision of five cm or better.

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