1:100 Flood Map (1% chance of occurring in any year)

(Note: Updated inundation maps for 1:2 to 1:1000 floods are available from Alberta Environment and Parks (2020). The new draft maps can be viewed here: https://floods.alberta.ca/?app_code=FI&mapType=Draft) These inundation maps show whether a property is at risk for various sized river floods. The size of flood shown on this map has a 1/100 or a 1% chance of occurring in any year. The three distinct types of inundation shown on the maps are: o Inundation - Area flooded overland due to riverbank overtopping. o Isolated - Low lying areas that will not be wet from riverbank overtopping, but may experience groundwater seepage or stormwater backup. o Protected - Area protected by a permanent flood barrier. The flood areas shown are based on Alberta Environment and Parks most recent (2020) inundation maps. There is uncertainty inherent in predicting the effects of flood events, and this uncertainty increases for floods with less than a 1% chance of occurrence in any year. Any use of this data must recognizing the uncertainty with regards to the exact location and extent of flooding. More information on flood mapping for Calgary is available at https://calgary.ca/flood For Calgary's River Flood story, see: https://maps.calgary.ca/RiverFlooding/

(注：艾伯塔环境与公园厅（Alberta Environment and Parks）于2020年更新了针对2年一遇至1000年一遇洪水的淹没地图。新版草图地图可通过以下链接查阅：https://floods.alberta.ca/?app_code=FI&mapType=Draft)
本批淹没地图可用于评估某一物业是否面临不同规模河流洪水的淹没风险。本图所展示的洪水规模，其年发生概率为1/100（即1%）。
地图中涵盖三类截然不同的淹没类型：
- 漫溢淹没：因河岸漫顶导致的陆地洪水淹没区域；
- 孤立积水：不会因河岸漫顶受淹的低洼区域，但可能出现地下水渗渍或暴雨径流倒灌；
- 防护区域：由永久性防洪屏障保护的区域。
本次展示的洪水淹没区域基于艾伯塔环境与公园厅2020年发布的最新淹没地图。洪水灾害影响预测本身存在固有不确定性，且对于年发生概率低于1%的洪水，该不确定性会进一步增大。使用本数据集时，必须充分考量洪水精确位置与淹没范围相关的不确定性。
如需了解卡尔加里市洪水制图的更多信息，可访问：https://calgary.ca/flood
若需查看卡尔加里市河流洪水专题内容，请访问：https://maps.calgary.ca/RiverFlooding/