Journal
MARINE GEODESY
Volume 33, Issue -, Pages 91-113Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01490419.2010.491028
Keywords
Satellite altimetry; calibration/validation; TOPEX/Poseidon; Jason-1; Jason-2/OSTM; sea level; GPS
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Funding
- National Aeronautics and Space Administration (NASA)
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We present a 17-year calibration record of precise (Jason-class) spaceborne altimetry from a California offshore oil platform (Harvest). Our analyses indicate that the sea-surface-height (SSH) biases for all three TOPEX/Poseidon (1992-2005) measurement systems are statistically indistinguishable from zero at the 15 mm level. In contrast, the SSH bias estimates for the newer Jason-1 mission (2001-present) and the Ocean Surface Topography Mission (2008-present) are significantly positive. In orbit for over eight years, the Jason-1 measurement system yields SSH biased by +94 +/- 15 mm. Its successor, OSTM/Jason-2, produces SSH measurements biased by +178 +/- 16 mm.
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