摘要
分析了由ITRF2000计算得到的两种板块运动模型的差异,认为ITRF2000在1mm/a的精度水平内,与NNR-NUVEL1A是匹配的,即满足NNR条件;仅仅根据全球地壳旋转角动量和是否为零不足以判定ITRF框架能否满足NNR条件。
Through the analysis of the difference between two plate motion models computed from ITRF2000,it is concluded that ITRF2000 is aligned with NNR-NUVEL1A at 1 mm/a level, i. e. , it satisfies NNR condition;it is not enough to judge whether ITRF satisfies NNR condition just according to if the sum of global angular momentum is zero or not.
出处
《大地测量与地球动力学》
CSCD
北大核心
2007年第3期39-43,共5页
Journal of Geodesy and Geodynamics
