Comparing Inundation Maps Developed Using WHAFIS and STWAVE: A Case Study in Washington County, RI
In 2010, a report, Mapping the Zone, Improving Map Accuracy, was prepared by a FEMA flood map committee appointed by the National Academies' Water Sciences and Technology Board, which discussed theoretical and practical issues related to FEMA map accuracy. The present analysis presents a case s...
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ftunivrhodeislan:oai:digitalcommons.uri.edu:oce_facpubs-1082 2024-09-15T18:23:31+00:00 Comparing Inundation Maps Developed Using WHAFIS and STWAVE: A Case Study in Washington County, RI Grilli, Annette R. Spauding, Malcolm L. Schambach, Lauren Smith, Jane Bryant, Mary 2015-01-01T08:00:00Z https://digitalcommons.uri.edu/oce_facpubs/83 https://doi.org/10.1061/9780784480304.016 unknown DigitalCommons@URI https://digitalcommons.uri.edu/oce_facpubs/83 doi:10.1061/9780784480304.016 https://doi.org/10.1061/9780784480304.016 Ocean Engineering Faculty Publications text 2015 ftunivrhodeislan https://doi.org/10.1061/9780784480304.016 2024-08-21T00:09:34Z In 2010, a report, Mapping the Zone, Improving Map Accuracy, was prepared by a FEMA flood map committee appointed by the National Academies' Water Sciences and Technology Board, which discussed theoretical and practical issues related to FEMA map accuracy. The present analysis presents a case study, which addresses in particular one of their major concerns: The use of a 1-D model to solve a 2-D problem. Finding #2 in the report stated: "Coastal flood maps can be improved significantly through use of coupled two-dimensional storm surge and wave models and improved process models, which would yield more accurate base flood elevations". The study re-computes the 100-year inundation maps in Washington County, using two-dimensional models. The initial and boundary conditions for wave simulations are based on results of fully coupled 2-D surge and wave models, the advanced circuulation model (ADCIRC) and the phase-averaged steady state spectral wave model (STWAVE), respectively, from the North Atlantic Coast Comprehensive Study (NACCS) performed by the U.S. Army Corps of Engineers. Waves are simulated using STWAVE over a series of high-resolution grids in nearshore and overland areas. Results are mapped and compared with FEMA's maps and transects. Text North Atlantic University of Rhode Island: DigitalCommons@URI Coastal Structures and Solutions to Coastal Disasters 2015 147 160 |
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University of Rhode Island: DigitalCommons@URI |
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In 2010, a report, Mapping the Zone, Improving Map Accuracy, was prepared by a FEMA flood map committee appointed by the National Academies' Water Sciences and Technology Board, which discussed theoretical and practical issues related to FEMA map accuracy. The present analysis presents a case study, which addresses in particular one of their major concerns: The use of a 1-D model to solve a 2-D problem. Finding #2 in the report stated: "Coastal flood maps can be improved significantly through use of coupled two-dimensional storm surge and wave models and improved process models, which would yield more accurate base flood elevations". The study re-computes the 100-year inundation maps in Washington County, using two-dimensional models. The initial and boundary conditions for wave simulations are based on results of fully coupled 2-D surge and wave models, the advanced circuulation model (ADCIRC) and the phase-averaged steady state spectral wave model (STWAVE), respectively, from the North Atlantic Coast Comprehensive Study (NACCS) performed by the U.S. Army Corps of Engineers. Waves are simulated using STWAVE over a series of high-resolution grids in nearshore and overland areas. Results are mapped and compared with FEMA's maps and transects. |
format |
Text |
author |
Grilli, Annette R. Spauding, Malcolm L. Schambach, Lauren Smith, Jane Bryant, Mary |
spellingShingle |
Grilli, Annette R. Spauding, Malcolm L. Schambach, Lauren Smith, Jane Bryant, Mary Comparing Inundation Maps Developed Using WHAFIS and STWAVE: A Case Study in Washington County, RI |
author_facet |
Grilli, Annette R. Spauding, Malcolm L. Schambach, Lauren Smith, Jane Bryant, Mary |
author_sort |
Grilli, Annette R. |
title |
Comparing Inundation Maps Developed Using WHAFIS and STWAVE: A Case Study in Washington County, RI |
title_short |
Comparing Inundation Maps Developed Using WHAFIS and STWAVE: A Case Study in Washington County, RI |
title_full |
Comparing Inundation Maps Developed Using WHAFIS and STWAVE: A Case Study in Washington County, RI |
title_fullStr |
Comparing Inundation Maps Developed Using WHAFIS and STWAVE: A Case Study in Washington County, RI |
title_full_unstemmed |
Comparing Inundation Maps Developed Using WHAFIS and STWAVE: A Case Study in Washington County, RI |
title_sort |
comparing inundation maps developed using whafis and stwave: a case study in washington county, ri |
publisher |
DigitalCommons@URI |
publishDate |
2015 |
url |
https://digitalcommons.uri.edu/oce_facpubs/83 https://doi.org/10.1061/9780784480304.016 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Ocean Engineering Faculty Publications |
op_relation |
https://digitalcommons.uri.edu/oce_facpubs/83 doi:10.1061/9780784480304.016 https://doi.org/10.1061/9780784480304.016 |
op_doi |
https://doi.org/10.1061/9780784480304.016 |
container_title |
Coastal Structures and Solutions to Coastal Disasters 2015 |
container_start_page |
147 |
op_container_end_page |
160 |
_version_ |
1810463739472773120 |