U.S. Geological Survey simulations of hydrodynamics and morphodynamics in Cape Cod Bay, MA: Sandwich Jan - April 2021

Dates

Publication Date: 2022-12-07

Citation

Warner, J.C., 2022, U.S. Geological Survey simulations of hydrodynamics and morphodynamics in Cape Cod Bay, MA: U.S. Geological Survey data release, https://doi.org/10.5066/P9I45J6Z.

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 in Cape Cod Bay, MA. Larger scale simulations of the US East Coast (Warner and Kalra, 2022) were used to drive numerical grids covering the Gulf of Maine (~1000m resolution) with a two-way nested downscaled region into Cape Cod Bay (~250m resolution). Results were analyzed to investigate bay-scale dynamics of net transport, seafloor elevation changes, and net sediment fluxes. Those results were further used to drive a coastal scale grid that stretched along ~17km of the coast from the Cape Cod Canal to Sandy Neck Beach. This nearshore grid had cross-shore [...]

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 in Cape Cod Bay, MA. Larger scale simulations of the US East Coast (Warner and Kalra, 2022) were used to drive numerical grids covering the Gulf of Maine (~1000m resolution) with a two-way nested downscaled region into Cape Cod Bay (~250m resolution). Results were analyzed to investigate bay-scale dynamics of net transport, seafloor elevation changes, and net sediment fluxes. Those results were further used to drive a coastal scale grid that stretched along ~17km of the coast from the Cape Cod Canal to Sandy Neck Beach. This nearshore grid had cross-shore resolution that varied from 2 m at the coast to approximately 30m at the offshore, and 20 m alongshore resolution. The simulation used the InWave infragravity group wave model coupled to a three-dimensional ocean model. InWave transports the wave action density, with wave rollers and dissipation due to bottom friction and wave breaking. Surface forcings were obtained from NOAA North American Mesoscale model data set (NCEI, 2004) including surface winds, air temperature, short wave and long wave radiation, relative humidity, atmospheric pressure, and precipitation. The seafloor was initialized with a uniform 2m thick distribution of sediment consisting of a constant 0.125mm grain size with a 8.7mm/s settling velocity, erosion rate of 1.0d-4 kg/m2/s, and a 0.14 N/m2 critical threshold of erosion. Simulations were performed for a time period from January 1, 2021 to April 30, 2021 and included several large storm events.

Reference cited:
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce, NCEI DSI 6173, gov.noaa.ncdc:C00630, https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ncdc:C00630.

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., Kalra, T.S., 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.

Warner, J.C., and Kalra, T.S., 2022, Collection of COAWST model forecast for the US East Coast and Gulf of Mexico: U.S. Geological Survey data release, https://doi.org/10.5066/P903KPBJ.

Contacts

Point of Contact :: John C Warner
Distributor :: U.S. Geological Survey - ScienceBase
USGS Program :: Coastal and Marine Hazards and Resources Program
Publisher :: U.S. Geological Survey
SDC Data Owner :: Woods Hole Coastal and Marine Science Center
USGS Mission Area :: Natural Hazards

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Canal2Bharb_grd2.nc		56.43 MB	application/x-netcdf
sandwich_janapr2021_average.nc		62.51 MB	application/x-netcdf
CCBay_META_Sandwich_final.xml “ISO metadata.” Original ISO Metadata	View	241.49 KB	application/vnd.iso.19139-2+xml
		1.01 GB	application/octet-stream
ocean_sand2scort.in		153.68 KB	text/plain
sand2scort.h		2.91 KB	text/x-c
sediment_sand2scort.in		54.26 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: File Access

THREDDS server for simulations of hydrodynamics and morphodynamics in Cape Cod Bay, MA	http://geoport.usgs.esipfed.org/thredds/catalog/vortexfs1/usgs/Projects/MICS_SciBase/Sandwich_JanApr2021/Output_full/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

This is a collection of hydrodynamic circulation and sediment transport simulations at Sandwich, MA for Jan - April 2021. These simulations were designed to simulate coastal erosion and storm impacts along western Cape Cod Bay.

U.S. Geological Survey simulations of hydrodynamics and morphodynamics in Cape Cod Bay, MA: Sandwich Jan - April 2021

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