Calibration and evaluation of satellite radar altimeter wave heights with <em>in situ</em> buoy data

Han Weixiao; Yang Jungang; Wang Jichao

doi:10.3969/j.issn.0253-4193.2016.11.007

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Han Weixiao, Yang Jungang, Wang Jichao. Calibration and evaluation of satellite radar altimeter wave heights with in situ buoy data[J]. Haiyang Xuebao, 2016, 38(11): 73-89. doi: 10.3969/j.issn.0253-4193.2016.11.007

Citation:

Han Weixiao, Yang Jungang, Wang Jichao. Calibration and evaluation of satellite radar altimeter wave heights with in situ buoy data[J]. Haiyang Xuebao, 2016, 38(11): 73-89. doi: 10.3969/j.issn.0253-4193.2016.11.007

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Calibration and evaluation of satellite radar altimeter wave heights with in situ buoy data

doi: 10.3969/j.issn.0253-4193.2016.11.007

1.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
2.
College of Science, China University of Petroleum, Qingdao 266580, China

Received Date: 2016-01-12
Rev Recd Date: 2016-03-01

Abstract

Abstract

Satellite altimetry is one of the important way to monitor significant wave height, this paper uses space-time matching method comparing SWH data of radar altimeters on board six satellites that are T/P, Jason-1, Envisat, Jason-2, Cryosat-2 and HY-2A with SWH data from NDBC buoys, and calibrates SWH data from radar altimeters. All radar altimeters data are chose from September 25, 1992 to September 1, 2015 for a period of 24 a. Matching result yields 53 NDBC buoys, including 7 oceanic buoys, evaluation of accuracy indicates RMSE between 0.4 m and 0.5 m, except T/P, after calibration, RMSE has significantly decreased, a maximum decline is 13.82%; the evaluation result of RMSE in 0.20-0.28 m for oceanic buoys, the evaluation of accuracy is better than all NDBC buoys; after calibration for SWH, there is a little bias between HY-2A satellite radar altimeter data and other 5 foreign satellite radar altimeter data.
- SWH,
- HY-2A,
- radar altimeter,
- buoy,
- evaluation,
- calibration

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References(27)

References

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