摘要
GPS技术可以确定验潮站水准点的地壳垂直形变,结合验潮数据获得的海平面相对变化,可以确定海平面的绝对变化。采用我国3个沿海验潮站两期GPS观测数据,计算了这些点位的地壳垂直运动速率。提出要监测验潮站的地壳垂直运动,最好采用多年连续GPS观测数据。
By using high precision GPS data and tide gauge data,the absolute change of local sea level is monitored.The rate of vertical land movement is obtained from GPS data of two periods at 3 tide gauge stations.The height variety is calculated with the data.It shows that the GPS data obtained only from several periods are not enough to get precision rate of vertical land movement and it is best to adopt GPS data of many continuous years.
出处
《海洋测绘》
2004年第3期5-8,共4页
Hydrographic Surveying and Charting
基金
国家自然科学基金资助项目(40274002)。
关键词
全球定位系统
GPS
验潮站
海平面
地壳垂直运动
global positioning system(GPS)
tide gauge station
mean sea level
vertical crust movement
