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Carolina Coastal Change Processes

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COAWST Modeling

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EXPERIMENTAL product. Please use with caution! This animation uses a GoogleMaps underlay and a series of images to create an animation showing wave heights and wind vectors.

Disclaimer : This is an EXPERIMENTAL product. The results presented here are for developmental purposes only, and not to be used for emergency planning or decisions involving the safety of human life and property. The methods and models discussed are in preliminary, developmental, stages and may be incorrect. The pages will be changed or removed without warning. The U.S. Geological Survey makes no representation as to the accuracy, correctness, or utility of any data, model, model results, or technique associated with these pages.

Modeling System

We are developing a Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system. The system is comprised of:

The modeling system is being developed to provide a coherent framework to investigate the targeted Tasks as outlined in the Approach section. The modeling system main descriptive site is .

The animation above can be selected to show color spatial patterns of sea surface temperature, sea surface height, suspended-sediment, or significant wave height. Additionally the animation can display vectors of wind or ocean surface currents. Data required to drive the modeling system include parametric wave parameters derived from Wave Watch III, wind and atmospheric surface inputs derived from the National Centers for Environmental Prediction (NCEP) North American Mesoscale and Global Forecasting System models, and climatology fields obtained from the Florida State University Center for Ocean-Atmospheric Predictions Studies (COAPS)  HYCOM model. The COAWST model above is run on a 5km (336x896) grid which encompasses the East Coast of the United States and the Gulf of Mexico. Several of the model output fields are available at hourly intervals via our THREDDS Data Server at

Timeseries plots of significant wave height

Timeseries plots of free surface
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This page last modified on Monday, 01-Apr-2019 15:50:06 EDT