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小编语:今年我国汛期提前,将出现降水偏多、恶劣天气增多的情况,各单位各部门要加强重点地区、部位、企业的汛期安全防范,及时整改消除隐患,严防自然灾害引发生产安全事故,这时我们不妨再了解一下防汛小常识。一、防汛基本知识1.什么是防汛防汛是指为防止和减轻洪水灾害,在洪水预报、防洪调度、防洪工程运用等方面进行的有关工作。汛的含义是指江河、湖泊等水域的季节性或周期性的涨水现象。2.降雨的特性降雨可按空气上升的原因,分为峰面雨、地形雨、对流雨和台风雨四类。24小时降雨强度与等级(单位:毫米)小雨小于10,中雨10~25,大雨20~50,暴雨50~
Xiaobian language: China’s flood season ahead of schedule, there will be more precipitation, severe weather conditions, all departments and units to strengthen the key areas, parts and businesses of flood control, timely rectification to eliminate hidden dangers and prevent natural disasters caused by production safety accidents , Then we may wish to find out about flood control tips. First, the basic knowledge of flood control 1. What is flood control Flood control refers to the prevention and mitigation of flood disasters, flood forecasting, flood control and flood control projects and other aspects of the work carried out. The meaning of flood refers to the seasonal or periodic water flooding in rivers, lakes and other waters. 2. The characteristics of rainfall According to the reasons for the rising of air, it can be divided into four categories: peak rain, topographical rain, convective rain and typhoon rain. 24 hours rainfall intensity and grade (unit: mm) light rain is less than 10, moderate rain 10 ~ 25, rain 20 ~ 50, heavy rain 50 ~