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Global Calibration of Jason-2 by Multi-Mission Crossover Analysis

机译:通过多任务交叉分析对Jason-2进行全球校准

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摘要

Multi-mission altimeter observations are successfully used for global cross calibration of altimeters. The approach utilizes a least squares adjustment minimizing single and dual satellite crossover differences as well as consecutive differences of the radial component of single satellites. The method is applied to obtain a characterization of the radial errors of the first year of OSTM/Jason-2 data. A mean relative range bias of about 7.5 ± 0.2 cm with respect to Jason-1 was computed. The radial errors show increased auto-correlation at the orbit revolution period, which is related to geographically correlated error pattern with up to about 2 cm amplitude.
机译:多任务高度计观测已成功用于高度计的全局交叉校准。该方法利用最小二乘平差最小化单卫星和双卫星交叉差异以及单卫星径向分量的连续差异。该方法用于获得OSTM / Jason-2数据第一年的径向误差的特征。计算出相对于Jason-1的平均相对范围偏差约为7.5±0.2 cm。径向误差在轨道旋转周期显示出增加的自相关,这与具有高达约2 cm振幅的地理相关误差模式有关。

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