一、問題的提出如何根据測站水位,就能較准确地了解在它附近的洪水淹沒区(如堤防、街道、房屋、交通要道、工矿企业、农业区……等)是防汛斗爭中必須要解决的一个問題。过去我們往往收到了水情电报,不够了解洪水对当地危害程度,同时測站也很难具体地向有关部門逐一說明洪水淹沒地区。如能正确确定警戒水位和保証水位,同时这种警戒水位和保証水位相应于当 First, the question raised How to be based on the station level, you can more accurately understand the flood near it in the area (such as embankments, streets, houses, transport routes, industrial and mining enterprises, agricultural areas ... ...) is a must in flood control struggle A problem to be solved. In the past, we often received hydrological telegrams, not enough to understand the extent of the flood damage to the local, but also the station is also difficult to specific to the relevant departments one by one to explain the flood inundated areas. If we can correctly determine the warning level and ensure the water level, while the warning level and ensure that the water level corresponds to when