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在格陵兰,为了扩延测量资料序列的不足对径流进行模拟是必要的。但由于缺少有关的地表水和冰下水径流的资料,详细地勾绘格陵兰冰盖的水文流域还存在着一定的困难。为了绘制局部的表面特征图,我们已经用到了低太阳角的陆地卫星资料。同时,在改进对流域的描述及径流的模拟方面也起到了积极的作用。目前,来自直升飞机测量的电磁反射信息(EMR)正用于冰川底部的地形制图,并取得了一些进展。这一信息还将用于计算流域内的水力资源以及估计流域范围内未来变化的可能性。
In Greenland, it is necessary to simulate runoff in order to extend the measurement data sequence. However, due to the lack of information on surface water and ice runoff, there are still some difficulties in elaborating the hydrological catchment of the Greenland ice sheet in detail. In order to map the local surface features, we have used terrestrial satellite data at low solar angles. At the same time, it also played a positive role in improving the description of the watershed and the simulation of runoff. Currently, electromagnetic reflection information (EMR) from helicopter measurements is being used for topographic mapping of the bottom of the glacier and some progress has been made. This information will also be used to calculate the water resources within the basin and to assess the likelihood of future changes within the basin.