Assessment of the cycle-to-cycle noise level of the Geosat follow-on, TOPEX, and Poseidon altimeters

From: Journal of Atmospheric and Oceanic Technology | Date: December 1, 2002| Author: | Copyright information

ABSTRACT

The Geodetic Satellite (Geosat) Follow-On (GFO), Ocean Topography Experiment (TOPEX), and Poseidon altimeter white-noise levels have been evaluated using a technique based on high-pass filtering of 1-Hz sea surface height time series. High-pass filtering removes the geoid and oceanography signals while revealing the random noise. This filtering technique is simpler to use than the repeat-track method, gives essentially the same results, and makes it easier to analyze much larger amounts of data to investigate subtle variations in noise levels. The new noise-level measurements ...

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