英国全国河流管理局正在研究利用卫星拍摄洪水泛滥河流照片,来建立电脑洪水泛滥预报系统。这种预报系统不但能提前4小时报警,而且预报非常准确。 这一系统含有10多年来对每次洪水泛滥情况绘制的地图以及卫星在洪水泛滥时对河流和洪水泛滥区所拍摄的照片。如果把这些卫星照片附加在原有的调查地图上时,电脑就能够 The National Rivers Authority of the United Kingdom is studying the use of satellites to photograph flood-infested rivers to establish a computer flood forecasting system. This forecast system not only can alarm 4 hours in advance, and the forecast is very accurate. The system contains maps of over 10 years of flooding each flooding and photographs of rivers and floodplains when satellites flood. If these satellite photos are attached to the original survey map, the computer will be able to