美国联邦应急管理署（FEMA）发布了一张用“洪峰基线海拔”（BFE）描绘洪涝频发重灾区轮廓的地图。
The Federal Emergency Management Agency (FEMA) publishes maps that designate Special Flood Hazard Areas delineated by a Base Flood Elevation (BFE).
这些影响常常会导致城市三大水问题的产生，即：水资源短缺，水环境污染和城市洪涝灾害频发。
These effects often lead to three water issues which are water shortage, water pollution and frequent flooding in urban areas.
这些影响常常会导致城市三大水问题的产生，即：水资源短缺，水环境污染和城市洪涝灾害频发。
These effects often lead to three water issues which are water shortage, water pollution and frequent flooding in urban areas.
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