我国高精度GPS陆海垂直运动监测网的数据处理

Data Processing of High Precise GPS Network for Monitoring Vertical Movement between Continent and Sea

为了分离海平面与验潮站所在陆地的垂直运动并获得海平面变化的绝对信息 ,对由沿海 5个验潮站组成的高精度 GPS陆海垂直运动监测网的 1998年一期观测数据 ,采用 GAMIT和 GL OBK软件进行了处理 ,并顾及了影响高程因素中由于方位不对称引起的大气延迟及改进的 Niell模型。最终 GPS监测网达到了毫米级的高程精度。

In order to separate vertical movements between continent and sea, so to obtain the absolute vertical movement of sea level ,we set up a high accuracy GPS network along the coast to monitor the movement .The GPS observation data were processed with high accuracy GPS software. GAMIT and GLOBK, in which atmospheric delay caused by azimuthal asymmetric and improved Niell model have been taken into account.In final,the height accuracy of the GPS monitoring network reached millimeter level.