华北地区大范围精密水准和GPS垂直运动分析  

Vertical Motion Analysis of North China Using Large Area Precision Leveling and GPS Data

作　　者：吕健[1] 杨超[2] 

机构地区：[1]中国地震局第一监测中心,天津300180 [2]中交四航局第一工程有限公司,广州510500

出　　处：《华北地震科学》2015年第3期22-25,共4页North China Earthquake Sciences

基　　金：科技部基础工作专项:中国大陆现代垂直形变图集的编制与资料整编(2015FY210400);中国地震局第一监测中心科技创新主任基金(FMC2014008)

摘　　要：利用华北地区2005-2007年大面积水准观测数据和1999年以来364个GPS测站(包括流动站和连续站)观测数据,分别获取其速度场。结果表明,该地区大面积水准和GPS重叠地区的垂直运动趋势基本一致,大致以太行山构造带为界,西部地区以隆升运动为主,东部地区以下沉运动为主,个别地区大面积水准和GPS的差异性运动可能是由于观测资料的时间跨度不一致和测点分布不尽相同所致。Using large area precision leveling data of 2005--2007 and GPS data of 364 observation stations since 1999（including mobile stations and fixed stations）, the velocity field of North China is calculated respectively. The results show that the vertical motion trend of large area leveling and GPS＇s overlapping areas are basically the same. With Taihang Mountain tectonic zone roughly as boundary, the western region is mainly in uplifting motion while the eastern region is mainly in sinking motion. Some areas＇ large area leveling and GPS＇s vertical motion are different, may due to the time span of data inconsistencies and measuring points distribution.

关 键 词：华北地区 大面积水准 GPS 速度场 垂直运动 

分 类 号：P228.4[天文地球—大地测量学与测量工程] P315.7[天文地球—测绘科学与技术]