中文摘要：

针对不同国家和地区高程基准不一致的问题,该文采用GOCE重力场模型和GPS/水准数据对高程基准统一的方法进行了研究,分析了基于GOCE的不同重力场模型用于计算亚太区域（110°E~180°E,50°S~50°N）高程基准偏差的差异,基于重力场模型GECO,利用亚太区域36个验潮站附近的GPS/水准点数据计算的平均海平面与大地水准面垂直偏差的平均值为0.416m,利用日本沿岸5个GPS/水准点数据计算的高程基准与大地水准面垂直偏差的平均值为0.185m,利用澳大利亚沿岸4个GPS/水准点数据计算的高程基准与大地水准面垂直偏差的平均值为0.41m。

英文摘要：

Aiming at the problem that the height datum unification is different in different countries and regions,the method for height datum unification was studied by using Earth＇s gravity field model from GOCE and GPS/levelling data.Different gravity field models based on GOCE were used to compute the deformation of height datums in Asia-Pacific region（110°E~180°E,50°S~50°N）.Finally,based on GECO gravity field model,the mean vertical deviation between mean sea level obtained by each of 36GPS/levelling points in Asia-Pacific region and geoid was 0.416 m,the mean vertical deviation between height datum computed by each of 5GPS-levelling points along the Japanese coast and geoid was 0.185 m,and the mean vertical between height datum computed by each of 4GPS-levelling points along the Australian coast and geoid was 0.41 m.