Hurricane Sandy at Fire Island, NY using a variable bottom roughness and vegetation drag over the barrier island.

Dates

Publication Date: 2022-02-24

Citation

Hegermiller, C., Warner, J.C., Olabarrieta, M., Sherwood, C.R., and Kalra, T.S., 2022, U.S. Geological Survey simulations of hydrodynamics and morphodynamics at Matanzas, FL during Hurricane Matthew (2016) and at Fire Island, NY during Hurricane Sandy (2012): U.S. Geological Survey data release, https://doi.org/10.5066/P9CKGQTX.

Summary

The Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST Warner and others, 2019; Warner and others, 2010) model was used to simulate ocean circulation, waves, and sediment transport to study barrier island breaches that occurred during Hurricane Matthew (2016) near Matazas FL, and Hurricane Sandy (2012) at Fire Island, NY. Hurricane Sandy was a Saffir-Simpson Category 2 hurricane that transited the Western Atlantic Ocean relatively far offshore of the US East Coast for five days until turning west to make landfall in New Jersey on 29 October 2012, causing extreme coastal erosion and flooding with destruction to residences and infrastructure along the East coast, particularly in the New York Bight. Maximum winds were ~50 m/s, [...]

Summary

The Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST Warner and others, 2019; Warner and others, 2010) model was used to simulate ocean circulation, waves, and sediment transport to study barrier island breaches that occurred during Hurricane Matthew (2016) near Matazas FL, and Hurricane Sandy (2012) at Fire Island, NY.

Hurricane Sandy was a Saffir-Simpson Category 2 hurricane that transited the Western Atlantic Ocean relatively far offshore of the US East Coast for five days until turning west to make landfall in New Jersey on 29 October 2012, causing extreme coastal erosion and flooding with destruction to residences and infrastructure along the East coast, particularly in the New York Bight. Maximum winds were ~50 m/s, minimum sea level pressure recorded was 940 mbar, maximum observed wave heights were ~10 m and storm surge was 3.5 m in NY City. During Sandy, barrier island breaching occurred at the site of a historical breach on an uninhabited section of Fire Island, NY. Research efforts have characterized the erosion, breaching, and recovery of Fire Island and post-storm LiDAR surveys provided topographic data for model initialization and comparison.

Hurricane Matthew was a Saffir-Simpson Category 5 hurricane that impacted the Caribbean Islands and US East Coast in early October 2016. The hurricane paralleled the U.S. South Atlantic coastline within 50 km for two days until landfall in South Carolina on 8 October 2016. Extensive flooding and coastal erosion due to extreme storm surge, waves, and rainfall were experienced. Maximum wind speeds were ~75 m/s, maximum observed wave heights were ~8 m , and maximum storm surge was reported to be ~3 m in parts of Florida. Breaching of a small barrier separating the ocean from the Intracoastal Waterway south of Matanzas, FL occurred on 7 October 2016. The barrier is 1.7 km long and less than 0.15 km wide, characterized by a sandy beach with houses and a paved road running along parts of the dune crest. The breach location is 2 km south of Matanzas Inlet. Pre-storm and post-storm topo-bathymetric LiDAR were available to capture hurricane-driven morphological changes.

The model employed a recently implemented infragravity wave model to represent the important effects of infragravity wave motions on nearshore water levels and sediment transport. The model simulated breaching. The breach simulated at Fire Island was 250 m west of the observed breach, whereas the breach simulated at Matanzas was within 100 m of the observed breach. Implementation of the vegetation module of COAWST to allow three-dimensional drag over dune vegetation at Fire Island improved model skill by decreasing flows across the back-barrier. Analysis of breach processes at Matanzas indicated that both far-field and local hydrodynamics influenced breach creation and evolution, including remotely generated waves and surge, but also surge propagation through back-barrier waterways. This work underscores the importance of resolving the complexity of nearshore and back-barrier systems when predicting barrier island change during extreme events. Further details are provided in Hegermiller et al., 2022.

This is a summary page for the collection of 4 sub pages.
-The first sub page is for the simualtion of Hurricane Matthew at Matanzas, FL.
-The second sub page is for the simulation of Hurricane Sandy at Fire Island, NY using a constant bottom roughness over the barrier island.
-The third sub page is for the simulation of Hurricane Sandy at Fire Island, NY using a variable bottom roughness over the barrier island.
-The fourth sub page is for the simulation of Hurricane Sandy at Fire Island, NY using a variable bottom roughness and vegetation drag over the barrier island.

Reference cited:
Hegermiller, C.A., Warner, J.C., Olabarrieta, M., Sherwood, C.R., and Kalra, T.S., 2002, Barrier island breach dynamics during Hurricanes Sandy and Matthew: Journal of Geophysical Research - Earth Surface, https://doi.org/10.1029/2021JF006307.

Warner, J.C., Armstrong, Brandy, He, Ruoying, and Zambon, J.B., 2010, Development of a coupled ocean-atmosphere-wave-sediment transport (COAWST) modeling system: Ocean Modelling, v. 35, issue 3, p. 230-244.

Warner, J.C., Ganju, N.K., Sherwood, C.R., Tarandeep, K., Aretxabaleta, A., He, R., Zambon, J., and Kumar, N., 2019, Coupled-Ocean-Atmosphere-Wave-Sediment Transport (COAWST) Modeling System: U.S. Geological Survey Software Release, 23 April 2019, https://doi.org/10.5066/P9NQUAOW. (URL for the specific version of the code used for these model results: https://code.usgs.gov/coawstmodel/COAWST/-/tags/COAWST_v3.7)

Contacts

Point of Contact :: John C Warner
Author :: Christie Hegermiller, John C Warner, Olabarrieta, Maitane, Christopher R Sherwood, Tarandeep S Kalra
Data Owner :: Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center
USGS Mission Area :: Natural Hazards
Distributor :: U.S. Geological Survey - ScienceBase

Attached Files

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FI_breach_grd53_mask_zobot.nc “Hydrodynamic model computational grid file.”		46.56 MB	application/x-netcdf
Sandy_breach_bcfull_grd40_coamps_zetawesteast_limit5.nc “Forcing applied at the boundaries of the computational grid.”		3.73 MB	application/x-netcdf
ocean_rst.nc “Initial conditions at the beginning of the simulation.”		522.2 MB	application/x-netcdf
breach_wilderness_veg_ISO.xml “ISO metadata.” Original ISO Metadata	View	302.51 KB	application/vnd.iso.19139-2+xml
breach_wilderness_veg.json “JSON file used for reading the Zarr formatted file from the s3 bucket.”		174.88 KB	application/json
breach_wilderness_veg.nc “Zarr formatted NetCDF file.”		43.06 GB	application/octet-stream
ana_humid.h “Circulation model header file for selecting the model modules.”		4.22 KB	text/x-c
ocean_sandy_inwave.in “Input file including hydrodynamic parameters.”		118.19 KB	text/plain
offbreach_coamps_full.spc2d “Wave boundary forcing file for wave module.”		276.66 KB	text/plain
sandy_inwave.h “Circulation model header file for selecting the model modules.”		3.27 KB	text/x-c
sediment_sandy_inwave.in “Input for sediment transport module.”		54.22 KB	text/plain
vegetation.in “Input for vegetation module.”		6.28 KB	text/plain
COAMPS_swrad_3hour_Sandy.nc “Input file for meteorological forcing(s) applied over the computational grid.”		645.83 MB	application/octet-stream
“Input file for meteorological forcing(s) applied over the computational grid.”		645.83 MB	application/octet-stream
“Input file for meteorological forcing(s) applied over the computational grid.”		645.83 MB	application/octet-stream
“Input file for meteorological forcing(s) applied over the computational grid.”		645.83 MB	application/octet-stream
“Input file for meteorological forcing(s) applied over the computational grid.”		645.83 MB	application/octet-stream
“Input file for meteorological forcing(s) applied over the computational grid.”		1.24 GB	application/octet-stream
readme_breach_wilderness_veg.txt “Readme describing the files.”		1.19 KB	text/plain

Related External Resources

Type: Citation

Warner, J.C., Armstrong, Brandy, He, Ruoying, and Zambon, J.B., 2010, Development of a coupled ocean-atmosphere-wave-sediment transport (COAWST) modeling system: Ocean Modelling, v. 35, issue 3, p. 230-244.	https://doi.org/10.1016/j.ocemod.2010.07.010

Type: Related Primary Publication

Hegermiller, C.A., Warner, J.C., Olabarrieta, M., Sherwood, C.R., and Kalra, T.S., 2002, Barrier island breach dynamics during Hurricanes Sandy and Matthew: Journal of Geophysical Research - Earth Surface, https://doi.org/10.1029/2021JF006307.	https://doi.org/10.1029/2021JF006307

Type: File Access

THREDDS server for simulations of hydrodynamics and morphodynamics at Matanzas, FL during Hurricane Matthew (2016) and at Fire Island, NY during Hurricane Sandy (2012)	https://geoport.usgs.esipfed.org/thredds/catalog/vortexfs1/usgs/Projects/breach/catalog.html

Type: Source Code

Warner, J.C., Ganju, N.K., Sherwood, C.R., Tarandeep, K., Aretxabaleta, A., He, R., Zambon, J., and Kumar, N., 2019, Coupled-Ocean-Atmosphere-Wave-Sediment Transport (COAWST) Modeling System: U.S. Geological Survey Software Release, 23 April 2019, https://doi.org/10.5066/P9NQUAOW. (URL for the specific version of the code used for these model results: https://code.usgs.gov/coawstmodel/COAWST/-/tags/COAWST_v3.7)	https://doi.org/10.5066/P9NQUAOW

Purpose

The model domain was developed to simulate US-East Coast for studying regional coastal response to storms or other natural phenomena. This dataset is a simulation of hydrodynamics and morphodynamics at Fire Island, NY during Hurricane Sandy (2012) using the COAWST modeling system. These results are from the local (~1-10 m resolution) domain of a multi-nested simulation. In this simulation, the vegetation module of COAWST was activated.

Hurricane Sandy at Fire Island, NY using a variable bottom roughness and vegetation drag over the barrier island.

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