论文部分内容阅读
盐湖湖水矿化度高低与其含铀量呈明显的正相关性,因此,盐湖矿化度可作为评价盐湖水含铀度的间接标志.为解决盐湖不同水域矿化度快速、精细识别,以柴达木盆地尕斯库勒含铀盐湖为例,基于高分辨率SPOT5卫星数据开展了盐湖水体矿化度遥感估测.对盐湖不同矿化度卤水进行光谱测试,总结了不同矿化度卤水在可见-红外谱段的光谱识别特征,基于该特征构建了SPOT5数据的多维矿化度估测指数,运用比值+主成分分析法估测了湖水的矿化度信息,发现了盐湖东部水域高矿化度环形异常现象,找出了隐藏在湖水水域的矿化度变异部位,为含铀盐湖富矿水域的快速定位提供了重要依据.
Therefore, the salinity of salt lake can be used as an indirect indicator to evaluate the degree of uranium content in salt lake water.In order to solve the problem of rapid and fine salinization of salt water in different waters of the Salt Lake, Taking the Gascule uranium salt lake in Damu Basin as an example, remote sensing of salt water salinity was carried out on the basis of high resolution SPOT5 satellite data.The spectra of brine with different salinities of salt lake were measured, Based on this feature, the multi-dimensional salinity estimation index of SPOT5 data was constructed. The ratio + principal component analysis was used to estimate the salinity information of the lake water, and the mineralization information of the lake in the eastern part of the salt lake was found. Degree of anomalous circular anomalies, to find out the hidden parts of the lake salinity variation, for the uranium salt lake rich waters rapid positioning provides an important basis.