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The Earth Gravitational Model 1996: The NCCS: Resource for Development, Resource for the FutureFor centuries, men have attempted to understand the climate system through observations obtained from Earth's surface. These observations yielded preliminary understanding of the ocean currents, tides, and prevailing winds using visual observation and simple mechanical tools as their instruments. Today's sensitive, downward-looking radar systems, called altimeters, onboard satellites can measure globally the precise height of the ocean surface. This surface is largely that of the equipotential gravity surface, called the geoid - the level surface to which the oceans would conform if there were no forces acting on them apart from gravity, as well as having a significant 1-2- meter-level signal arising from the motion of the ocean's currents.
Document ID
Document Type
Date Acquired
August 20, 2013
Publication Date
July 1, 2002
Publication Information
Publication: 1999 NCCS Highlights
Subject Category
Distribution Limits
Work of the US Gov. Public Use Permitted.
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