Feasibility Analysis of Performance Validation for Satellite Altimeters Using Tide Gauge and Deep-ocean Bottom Pressure Recorder

作者：Bin GUAN,Zhongmiao SUN,Xiaogang LIU,Zhenhe ZHAI,Xianping QIN

摘要：Independent of traditional approach of satellite altimeter calibration, the feasibility of altimeter validation using tide gauge located on solitary island at open sea (TGSI) and deep-ocean bottom pressure recorder (DBPR) separately is initially studied. Bias of Jason-3 sea surface height (SSH) and relative SSH bias (Δbias) between Jason-2 and Jason-3 is calculated using the data of tide gauge on Harvest oil platform, tide gauge No. 1890000 and DBPR No. 21419. The standard deviations of calculated SSH bias sequence are 3.98 cm, 2.87 cm and 8.61 cm respectively, and Δbias (Jason-3—Jason-2) is -3.62± 2.17 cm , -2.58±1.97 cm and -2.60±1.30 cm respectively. Comparing to the results reported by international calibration sites, the results show that Jason-3 SSH is 3.0 cm lower than that of Jason-2, the selected DBPR is appropriate to the calculation of relative SSH bias between Jason-2 and Jason-3, but it is not suitable for calibration or validation of single satellite, TGSI is appropriate to both.

發文機構：State Key Laboratory of Geo-information Engineering Institute of Geography Spatial Information Xi’an Research Institute of Surveying and Mapping

關鍵詞：satelliteALTIMETRYALTIMETERcalibrationTIDEgaugeDEEP-OCEANAssessmentandREPORTINGofTsunamisrelativebiaspressureRECORDER

分類號： TP3[自動化與計算機技術—計算機科學與技術]