[ABSTRACT] The understanding of hydrological processes is crucial for the evaluation of the surface and groundwater system, and for appropriate management of the available surface water and groundwater resources, both in terms of quality and quantity.This research presents the application of remote sensing technology to monitor hydrologic processes of glacier,snow, frozen soil, surface water and precipitation as well as a discussion of the use of remote sensing technology in monitoring water resources. The purposes of this study are to bring the glacier, frozen soil, snow, groundwater and surface water into an integrated hydrological cycle system to identify the water sources and proportions, and to probe into the hydrological processes in each of the landscape zones, glacier areas changes and its impacts on catchment-scale water resources during the melting period. For monitoring of hydrological land surface processes, topographic map (1976), LANDSAT TM/ETM+, ASTER GDEM (30m) were used as original data, the cloud-free and gap free data were used for producing LANDSAT TM/ETM+ Tasseled Cap Transformation (TCT) indexes such as TC-Wetness, TC-Brightness, TC-Greenness. These indexes were employed to extract surface water, glacier and snow areas to quantitatively monitor water resource change during 1976-2015. The results are expected to provide an insight into water resources dynamic change and its management in arid regions.
展开▼
