基于ITRF2005的全球板块运动模型  

Global Plate Motion Model Based on ITRF2005

作　　者：荣敏 周巍 

机构地区：[1]61363部队

出　　处：《海洋测绘》2009年第1期1-3,共3页Hydrographic Surveying and Charting

基　　金：国家自然科学基金项目(40474014)

摘　　要：基于最新的国际地球参考架ITRF2005的速度场,构建了一个新的现时板块运动模型ITRF2005VEL,比以往用空间测量技术或地质、地球物理资料建立的板块运动模型更精确和更全面地反映现时全球板块运动的特点。求解了ITRF2005VEL的现时板块运动参数;然后与地学板块运动模型NNR-NUVEL1A相比两者基本一致。表明:最近三百万年内全球板块运动总体上是稳定的。Based on the latest ITRF2005 velocity field, a new present time plate motion model ITRF2005VEL has been established. It is compared with the global plate motion models which are based on space techniques and geological and geophysical data, the new model is more precise and comprehensive in describing the feature of global plate motion. The instantaneous plate motion parameters of ITRF2005VEL can be calculated, and show it agrees well with NNR-NUVEL1 A. This remarkable agreement between two models shows that current plate motions are generally steady during recent 3 million years.

关 键 词：空间大地测量 ITRF2005VEL 欧拉矢量 NNR-NUVEL1A 板块运动 

分 类 号：P228[天文地球—大地测量学与测量工程]