GPS在沿海围垦动态监测中的应用

采用Ｍａｇｅｌｌａｎ ＰｏｒＭＡＲＫ Ｘ－ＣＭ手持ＧＰＳ接收机，以广东省湛江市通明海海为实验区，通过野外实地数据采集、室内数据差分后处理、与ＴＭ影像准等，探索了一套ＧＰＳ与遥感图像分析相结合、快速、准确析沿海围垦动态数据的工作流程。结果表明：ＧＰＳ应用于ＴＭ影像几何纠正，可提高ＴＭ影像几何纠正的精度，ＧＰＳ采集的数据可以辅助目视解译，提高目视解译精度：ＧＰＳ可以补充ＴＭ影像成像后最新的动态信息。

Application of GPS to Monitoring Dynamics of Reclaiming Coastal Land

Through accurate and multiple differential GPS (ProMARK X-CM),a program of dynamical monitoring reclaiming coastal land, concerning field data collection, data process and map match with TM image was established in study area, Tongming Sea of Zhangjiang and He'an Township of Xuwen County, Guangdong Province. The research results indicated that (1) Using GPS data as control points, the precision of geometric correction of TM image was raised. (2) Aided by the GPS data, the classification accuracy of TM image was improved. (3) The GPS could be able to collect current data of enclose tideland for cultivation engineering.