Real-Time Flood Mapping on Client-Side Web Systems Using HAND Model
The height above nearest drainage (HAND) model is frequently used to calculate properties of the soil and predict flood inundation extents. HAND is extremely useful due to its lack of reliance on prior data, as only the digital elevation model (DEM) is needed. It is close to optimal, running in line...
| Autors principals: | , |
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| Format: | Article |
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Multidisciplinary Digital Publishing Institute
2021
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| Accés en línia: | https://hdl.handle.net/1721.1/133190 |
| _version_ | 1826188741831557120 |
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| author | Hu, Anson Demir, Ibrahim |
| author_facet | Hu, Anson Demir, Ibrahim |
| author_sort | Hu, Anson |
| collection | MIT |
| description | The height above nearest drainage (HAND) model is frequently used to calculate properties of the soil and predict flood inundation extents. HAND is extremely useful due to its lack of reliance on prior data, as only the digital elevation model (DEM) is needed. It is close to optimal, running in linear or linearithmic time in the number of cells depending on the values of the heights. It can predict watersheds and flood extent to a high degree of accuracy. We applied a client-side HAND model on the web to determine extent of flood inundation in several flood prone areas in Iowa, including the city of Cedar Rapids and Ames. We demonstrated that the HAND model was able to achieve inundation maps comparable to advanced hydrodynamic models (i.e., Federal Emergency Management Agency approved flood insurance rate maps) in Iowa, and would be helpful in the absence of detailed hydrological data. The HAND model is applicable in situations where a combination of accuracy and short runtime are needed, for example, in interactive flood mapping and supporting mitigation decisions, where users can add features to the landscape and see the predicted inundation. |
| first_indexed | 2024-09-23T08:04:22Z |
| format | Article |
| id | mit-1721.1/133190 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T08:04:22Z |
| publishDate | 2021 |
| publisher | Multidisciplinary Digital Publishing Institute |
| record_format | dspace |
| spelling | mit-1721.1/1331902021-11-01T14:36:55Z Real-Time Flood Mapping on Client-Side Web Systems Using HAND Model Hu, Anson Demir, Ibrahim The height above nearest drainage (HAND) model is frequently used to calculate properties of the soil and predict flood inundation extents. HAND is extremely useful due to its lack of reliance on prior data, as only the digital elevation model (DEM) is needed. It is close to optimal, running in linear or linearithmic time in the number of cells depending on the values of the heights. It can predict watersheds and flood extent to a high degree of accuracy. We applied a client-side HAND model on the web to determine extent of flood inundation in several flood prone areas in Iowa, including the city of Cedar Rapids and Ames. We demonstrated that the HAND model was able to achieve inundation maps comparable to advanced hydrodynamic models (i.e., Federal Emergency Management Agency approved flood insurance rate maps) in Iowa, and would be helpful in the absence of detailed hydrological data. The HAND model is applicable in situations where a combination of accuracy and short runtime are needed, for example, in interactive flood mapping and supporting mitigation decisions, where users can add features to the landscape and see the predicted inundation. 2021-10-27T18:01:47Z 2021-10-27T18:01:47Z 2021-04-11 2021-04-23T13:33:44Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133190 Hydrology 8 (2): 65 (2021) PUBLISHER_CC http://dx.doi.org/10.3390/hydrology8020065 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ application/pdf Multidisciplinary Digital Publishing Institute Multidisciplinary Digital Publishing Institute |
| spellingShingle | Hu, Anson Demir, Ibrahim Real-Time Flood Mapping on Client-Side Web Systems Using HAND Model |
| title | Real-Time Flood Mapping on Client-Side Web Systems Using HAND Model |
| title_full | Real-Time Flood Mapping on Client-Side Web Systems Using HAND Model |
| title_fullStr | Real-Time Flood Mapping on Client-Side Web Systems Using HAND Model |
| title_full_unstemmed | Real-Time Flood Mapping on Client-Side Web Systems Using HAND Model |
| title_short | Real-Time Flood Mapping on Client-Side Web Systems Using HAND Model |
| title_sort | real time flood mapping on client side web systems using hand model |
| url | https://hdl.handle.net/1721.1/133190 |
| work_keys_str_mv | AT huanson realtimefloodmappingonclientsidewebsystemsusinghandmodel AT demiribrahim realtimefloodmappingonclientsidewebsystemsusinghandmodel |