نتایج جستجو برای: copernicus
تعداد نتایج: 2074 فیلتر نتایج به سال:
Abstract The Copernicus Climate Change Service (C3S) provides open and free access to state-of-the-art climate data tools for use by governments, public authorities, private entities around the world. It is fully funded European Union implemented Centre Medium-Range Weather Forecasts (ECMWF) together with in Europe elsewhere. With over 120,000 registered users worldwide, C3S has rapidly become ...
Introduction: The limits on effective rover operations based on command/response latency need additional exploration. One of the chief operations of scientific instrumentation depends on proper placement of the rover to conduct such operations. This placement begins with driving to the site of interest, then approaching the target of interest, and finally deploying the instrumentation. Our goal...
Crater rays are formed during a cratering event as target material is ballistically ejected to distances of many crater radii forming narrow, generally high albedo, approximately linear features extending outward from the crater. The nature of crater rays was examined for the lunar crater Copernicus using new information on, the composition of surface material (from near-IR reflectance measurem...
As part of the Copernicus programme of the European Union (EU), the European Space Agency (ESA) has developed and is currently operating the Sentinel-2 mission that is acquiring high spatial resolution optical imagery. This paper provides a description of the calibration activities and the current status of the mission products validation activities. Measured performances, from the validation a...
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