国产高分数据在青海地区遥感解译泉点浅探

Briefly Explore of Remote Sensing Interpretation Spring Point UsingDomestic High-resolution Data in Qinghai

利用青海省国内高分辨率卫星数据,对祁连县、湟源县和玛沁县南部的泉水点进行了遥感解译。通过提取水体信息,结合以往相关数据,并协助现场验证,对多个泉水点进行了解释。在此基础上,总结了遥感解译泉水点的解译标志,包括断层泉、侵蚀泉、冻土边缘泉等,为水文地质、矿泉水靶区优选等提供基础数据。对于大涌水量、大流量的遥感影像泉水点,解译效果较好,而小涌水量、小流量的泉水点解译效果不佳。为了更好地服务于自然资源要素和生态条件的调查,建议反复进行泉点解译,并协助多光谱数据水文信息的遥感因子反演。

In this paper,we used the domestic high-resolution satellite data in Qinghai Province to carry out the remote sensing interpretation spring points in Qilian County,Huangyuan County and the southern part of Maqin County.By extracting the water body information,combining with the previous relevant data,and assisting the field verification,we interpreted many spring points.Then,we summarized some interpretation marks of remote sensing interpretation spring points,including fault spring,erosion spring,spring on the edge of frozen soil,which could provide basic data for hydrogeology,optimal selection of mineral water target area and so on.For the remote sensing image spring point with large inrush and large flow,the interpretation effect is good,but the interpretation effect of the spring point with small inrush and small flow is not good.In order to better serve the investigation of natural resource elements and ecological conditions,it is suggested that the interpretation of spring points should be carried out repeatedly,and the remote sensing factor inversion of hydrological information of multispectral data should be assisted.