1:750 Flood Map (0.13% 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 1/750 or a 0.13% 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：阿尔伯塔环境与公园部（2020年）提供了1:2至1:1000洪水规模的淹没地图更新。新的草案地图可在此查阅：https://floods.alberta.ca/?app_code=FI&mapType=Draft。）这些淹没地图展示了财产在各类河流洪水中的风险程度。地图上所示的洪水规模具有1/750或任何一年中0.13%的发生概率。

地图上所展示的三种不同类型的淹没情况如下：

o 淹没 - 由于河岸溢出而淹没的地面区域。

o 孤立 - 低洼地区，即使河岸溢出也不会被淹没，但可能经历地下水渗透或暴雨积水倒灌。

o 受保护 - 由永久性洪水屏障保护的区域。

展示的洪水区域基于阿尔伯塔环境与公园部最新的（2020年）淹没地图。预测洪水事件的影响固含有不确定性，且对于任何一年中发生概率低于1%的洪水，这种不确定性会进一步增强。使用此数据时，必须认识到与洪水确切位置和范围相关的这种不确定性。

有关卡尔加里的洪水制图更多信息，请访问https://calgary.ca/flood。

关于卡尔加里的河流洪水故事，请参阅https://maps.calgary.ca/RiverFlooding/。