ICS07.060 CCSA47 DB4401/T281—2024 城镇内涝气象风险等级 Meteorologicalrisklevelsofurbanwaterlogging 2024—10—14发布 2024—11—14实施DB4401 广州市地方标准 广州市市场监督管理局发布 DB4401/T281—2024 I目次 前言.................................................................................III 1范围................................................................................1 2规范性引用文件......................................................................1 3术语与定义..........................................................................1 4符号和缩略语........................................................................2 5城镇内涝等级划分....................................................................2 6内涝降雨等级划分....................................................................3 7潜在内涝风险等级划分................................................................4 8综合内涝易发等级划分................................................................4 9内涝气象风险等级划分................................................................5 参考文献...............................................................................6