利用EGM96模型和DTM数据研究区域构造应力场  

Research on regional tectonic stress field based on EGM96 model and DTM data

作　　者：杨国林[1,2] 章传银[2] 党亚民[2] 

机构地区：[1]兰州交通大学,兰州730070 [2]中国测绘科学研究院,北京100039

出　　处：《测绘科学》2009年第6期26-28,共3页Science of Surveying and Mapping

摘　　要：地球内部物质分布决定地球外部重力场,探索地球内部的构造动力学机制,关键在于研究地球内部因素。通过地球重力场模型得到其构造应力场,可用于研究地球内部构造运动的驱动力。本文利用EGM96参考重力场模型及DTM数据,采用PALGrav1.0软件,获得参考重力场元中的重力异常和垂线偏差,分别计算同一区域的构造应力场,对比分析两种数据获得构造应力场的分布状况。As the substance distribution of earth interior determines the gravitational field of earth exterior, the study of the internal elements of the earth is of utmost importance for the exploration of the dynamic mechanism of geognostic. Knowledge of the tectonic stress field of the earth by analysing its gravity field model is of applicative value in studying the driving force of tectogenesis of interior earth. By applying the EGM96 reference gravity field model, DTM data and the PALGrav1. 0 software, gravity anomaly and vertical deflection in reference gravitational field were obtained. The tectonic stress field of the same region was calculated. The distribution of the tectonic stress field calculated from two kinds of data was compared.

关 键 词：EGM96 DTM PALGrav1.0 重力异常 垂线偏差 构造应力 

分 类 号：P223[天文地球—大地测量学与测量工程]