手持GPS与GPSMapGIS在1∶5万水系沉积物测量中的应用

Application of Hand GPS and GPSMapGIS in Stream Sediment Survey of 1∶50000

阐述了GARMIN GPS Map 60CSx在1∶5万水系沉积物测量中的应用,较好地解决了直接用地形图定点而造成跑错沟,以及由于人为因素导致点位失真和采样随机性大的问题,提高了野外采样的效率。野外工作完成后,在室内利用GPSMapGIS软件将GPS航迹及点位按所需要的比例尺转换成对应的MapGIS可直接识别的文件,并将转换好的文件添加至设计底图,这样以来管理人员便能清晰直观的了解工作人员在野外采样时的进度及采样点的到位情况,对采样质量起到了很好的监控作用。

We systematically expatiated the application of GARMIN GPS Map 60CSx in stream sediment survey of 1：50 000.The channels pointing mistakes caused by using topographic map and other problems such as pointing distortion and sampling random caused by human factors can be avoided.It improves the efficiency of field sam pling.After completing field work, GPS track points can be converted to the file which MapGIS software can identi fy according to the required scale by using GPSMapGIS software.The converted file can be added to the designed base map by using MapGIS software,managers can easily know the progress in the field and accuracy of sampling through GPSMapGIS software.It plays a very good role in sampling quality monitoring.