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Precision Comparison of the Earth Gravity Field Models of EGM96 and EGM2008
Author(s): 
Pages: 55-57
Year: Issue:  2
Journal: Hydrographic Surveying and Charting

Keyword:  地球重力场模型球谐函数重力异常垂线偏差EGM96EGM2008;
Abstract: 给出了由地球重力场模型计算重力异常和垂线偏差的公式,利用36阶、360阶EGM96、EGM2008地球重力场模型计算了国内某地区格网点重力异常和地面垂线偏差,并将其与实测数据进行比较,从而对这两种模型的精度进行了分析和比较.结果表明,在表示国内某地区格网点重力异常时,EGM2008模型精度较高;在表示地面垂线偏差时,两种模型的精度相当.
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