National geodatabase of tidal stream power resource in USA |
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| Authors: | Zafer Defne Kevin A. Haas Hermann M. Fritz Lide Jiang Steven P. French Xuan Shi Brennan T. Smith Vincent S. Neary Kevin M. Stewart |
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| Affiliation: | 1. School of Civil and Environmental Engineering, Georgia Institute of Technology, 210 Technology Circle, Savannah, GA 31407, USA;2. Center for Satellite Applications and Research, National Oceanic and Atmospheric Administration, Camp Springs, MD 20746, USA;3. Geographic Information Systems, Georgia Institute of Technology, 280 Ferst Dr NW, Atlanta, GA 30332, USA;4. Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA |
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| Abstract: | A geodatabase of tidal constituents is developed to present the regional assessment of tidal stream power resource in the USA. Tidal currents are numerically modeled with the Regional Ocean Modeling System (ROMS) and calibrated with the available measurements of tidal current speeds and water level surfaces. The performance of the numerical model in predicting the tidal currents and water levels is assessed by an independent validation. The geodatabase is published on a public domain via a spatial database engine with interactive tools to select, query and download the data. Regions with the maximum average kinetic power density exceeding 500 W/m2 (corresponding to a current speed of ～1 m/s), total surface area larger than 0.5 km2 and depth greater than 5 m are defined as hotspots and documented. The regional assessment indicates that the state of Alaska (AK) has the largest number of locations with considerably high kinetic power density, followed by, Maine (ME), Washington (WA), Oregon (OR), California (CA), New Hampshire (NH), Massachusetts (MA), New York (NY), New Jersey (NJ), North and South Carolina (NC, SC), Georgia (GA), and Florida (FL). |
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