联合多代卫星测高数据确定中国近海稳态海面地形模型  

The Determination of Quasi-stationary Sea Surface Topography over China Sea by Using Multi-altimeter Data

作　　者：邓凯亮[1] 暴景阳[1,2] 章传银[3] 刘雁春[1] 许军[1] 唐岩[1] 

机构地区：[1]海军大连舰艇学院海测工程系,辽宁大连116018 [2]国家海洋局第一海洋研究所,山东青岛266061 [3]中国测绘科学研究院,北京100039

出　　处：《测绘学报》2009年第2期114-119,共6页Acta Geodaetica et Cartographica Sinica

基　　金：国家自然科学基金(40671161);国家测绘局测绘科技发展基金(2001-01-02)

摘　　要：联合多代测高卫星(Geosat GM和ERS-1/168,TOPEX/Poseidon(简称T/P)、变轨T/P,ERS-2,GFO)数据,基于强制改正法得到中国近海2′×2′格网分辨率的平均海面高模型;然后以EIGEN-GL04C重力场模型为参考模型,基于测高垂线偏差法精化得到中国近海2′×2′格网分辨率的测高大地水准面模型;最后联合移去-恢复技术和Gauss滤波技术,采用几何域法得到中国近海2′×2′格网分辨率的测高海面地形。利用中国沿岸长期验潮站平均海面高程信息,由直接推算法与平差法得出1985国家高程基准相对于所建测高大地水准面的垂直偏差分别为23.62±5.38cm与22.33±1.07cm,与海洋学方法和GPS/水准方法得到的近期结果相近[1～2];扣除各自垂直偏差后的比较表明,由上述两种方法得到的海面地形模型的精度分别为±5.38cm与±5.23cm。Multi-satellite altimeter （Geosat GM, ERS-1/168, TOPEX/Poseidon （T/P）, new T/P, ERS-2 and GFO） data is used to determine Mean Sea Surface（MSS） model and Altimetry Geoid model with a spatial resolution of 2 ＇ over China sea and adjacent seas. The MSS model is obtained using compelling-correction method. And the Altimetry Geoid model is calculated using Altimetry Deflection of the Vertical taking the global gravity field model EIGEN- GL04Cas reference model. At last based on the combination of the technique of remove-restore and the method of Gauss filtering, an Altimeter Sea Surface Topography（SST） model over China sea and adjacent sees with a spatial resolution of 2＇ is obtained based on the geometric method. The mean sea level heights at some permanent tidal stations along Chinese coast are taken as reference data, based on the direct calculation method and adjustment method, the respective vertical shift of the origin of the 1985 notional height datum with respect to the Altimetry Geaid model is 23.62±5.33cm and 22.33±1.07cm, which is close to the results calculated by the ocean circulation method and GPS/Leveling method. After deducting the respective vertical shift, the comparison indicates that the respective accuracy of the SST Model is ±5.38 cm end ±5. 23 cm through the above two kinds of methods.

关 键 词：测高卫星 几何域法 稳态海面地形 

分 类 号：P229[天文地球—大地测量学与测量工程]