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Wave Energy Period

Metadata Updated: March 15, 2024

Wave energy period is a sea state parameter, derived from the zeroth and first negative moments of the frequency spectrum. It is the period corresponding to the weighted average of the wave energy. Wave energy period values in this dataset are represented in seconds. The Wave Energy Resource Assessment project is a joint venture between NREL and Virginia Tech. NREL is the prime contractor and Virginia Tech is responsible for development of the models and estimating the wave resource. NREL also serves as an independent validator and also develops the final GIS-based display of the data. Data represent monthly summaries for the time period from January 1980 to December 2009 (30 years) for the following parameters: significant wave height (ssh), wave energy period (wep), and wave hindcast direction (dfp). For complete details regarding this study please read the full report, available here: A note about the data: Bathymetric effects are known to have a large effect on wave characteristics at depths shallower than approximately 20m (\~65 ft) on the Atlantic coast and 50 m (\~160 ft) on the Pacific coast. A variance between depths exists due to the feature differences for each continental shelf. The methodology used in this resource assessment precludes providing site-specific information to such developers. Reliable site-specific information in shallow waters can only be produced using results from models with higher spatial resolution that include shallow-water physics. The wave resource assessment group acknowledges that its results will not be accurate in the shallower waters of the inner continental shelf. These shallow water regions are located within the dark gray boundaries on the map.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Date February 29, 2024
Metadata Created Date January 24, 2022
Metadata Updated Date March 15, 2024
Reference Date(s) (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOS OCM

Additional Metadata

Resource Type Dataset
Metadata Date February 29, 2024
Metadata Created Date January 24, 2022
Metadata Updated Date March 15, 2024
Reference Date(s) (publication)
Responsible Party NOAA Office for Coastal Management (Point of Contact)
Contact Email
Guid gov.noaa.nmfs.inport:66214
Access Constraints Cite As: Office for Coastal Management, [Date of Access]: Wave Energy Period [Data Date Range],, Use Constraints: For coastal and ocean planning, Distribution Liability:
Bbox East Long 179.998
Bbox North Lat 63.03335
Bbox South Lat 16.96665
Bbox West Long -179.998
Coupled Resource
Frequency Of Update asNeeded
Harvest Object Id 7bbd8ace-bc7f-4d16-a891-66ded56232bf
Harvest Source Id c0121fd9-df15-4168-ac04-42f6e36a794d
Harvest Source Title NOS OCM
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-179.998, 16.96665], [179.998, 16.96665], [179.998, 63.03335], [-179.998, 63.03335], [-179.998, 16.96665]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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