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Results tagged with flood
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user 35779
A flood is an overflow of water that submerges land which is usually dry. Within GIS we often want to model a flood with terrain models.
5
votes
Generate flood map using qgis
This is a good video that provides you with a walkthrough on generating a flood inundation map, QGIS Flood Risk Mapping Walkthrough. Also, you can find additional case study here …
- 12.1k
2
votes
Increasing Flood Plain
Flood extents are typically estimated by comparing models of water surfaces and ground surfaces. … Water surface profiles for a given flood event (for example, 50-year flood) are created by a hydraulic engineer or hydrologist using tools like HEC-GeoRAS. …
- 12.1k
0
votes
Determining flood extents based on a daily flow?
I would look into HAZUS Flood Model
The Hazus Flood Model allows planners and other practitioners to carry out a wide range of flood hazard analyses, including:
Studies of specific return intervals … The riverine flood hazard analysis module uses characteristics, such as frequency, discharge and ground elevation to estimate flood depth, flood elevation and flow velocity (simplified). …
- 12.1k