NNR条件,ITRF和全球板块运动模型  

NNR CONDITION,ITRF AND GLOBAL PLATE MOTION MODEL

作　　者：张西光[1] 吕志平[1] 赵冬青[1] 

机构地区：[1]信息工程大学测绘学院,郑州450052

出　　处：《大地测量与地球动力学》2007年第3期39-43,共5页Journal of Geodesy and Geodynamics

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.

关 键 词：无净旋转(NNR No-Net-Rotation) 国际大地参考系(ITRF International TERRESTRIAL Reference Frame) 欧拉矢量 NNR-NUVEL1A 板块运动 

分 类 号：P227[天文地球—大地测量学与测量工程] P541[天文地球—测绘科学与技术]