夏哲仁, 石磐, 李迎春. 高分辨率区域重力场模型DQM2000[J]. 武汉大学学报 ( 信息科学版), 2003, 28(S1): 124-128.
引用本文: 夏哲仁, 石磐, 李迎春. 高分辨率区域重力场模型DQM2000[J]. 武汉大学学报 ( 信息科学版), 2003, 28(S1): 124-128.
XIA Zheren, SHI Pan, LI Yingchun. A New Series of High Resolution Earth's Gravity Field Models DQM2000[J]. Geomatics and Information Science of Wuhan University, 2003, 28(S1): 124-128.
Citation: XIA Zheren, SHI Pan, LI Yingchun. A New Series of High Resolution Earth's Gravity Field Models DQM2000[J]. Geomatics and Information Science of Wuhan University, 2003, 28(S1): 124-128.

高分辨率区域重力场模型DQM2000

A New Series of High Resolution Earth's Gravity Field Models DQM2000

  • 摘要: 基于局部积分谱权综合法,选择国外重力场模型OSU91A和EGM96作为基础模型,利用中国地域20'×20'、15'×15'、10'×10'和5'×5'平均重力异常,解算了一组高分辨率地球重力场系列模型DQM2000,即DQM2000A、DQM2000B、DQM2000C和DQM2000D,其完整阶次分别为540、720、1080和2160,采用内部符合和外部检核的方法以评价新模型的精度。

     

    Abstract: This paper presentes a new series of high-resolution earth's gravity field models DQM2000 computed by the method of regional integral correct ion with frequency weight and their accuracy comparison.Based on the OSU91A and EGM96 models and the regional mean gravity anomalies of 20'×20',15'×15',10'×10' and 5'×5'in China,the improved models DQM2000A,DQM2000B,DQM2000C and DQM2000D,whose complete degrees and orders are up to 540,720,1 080 and 2 160 respectively,are developed.

     

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