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Short Citation:
Office for Coastal Management, 2023: Wave Direction,

Item Identification

Title: Wave Direction
Status: Completed

Wave hindcast direction represents the direction of peak in directionally-resolved wave energy flux. Wave hindcast direction values in this dataset are represented in degrees. 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.


To support ocean planning activities pursuant to the Executive Order Regarding the Ocean Policy to Advance the Economic, Security, and Environmental Interests of the United States, the Energy Policy Act, the National Environmental Policy Act, the Rivers and Harbors Act, and the Coastal Zone Management Act.


Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
ISO 19115 Topic Category
ISO 19115 Topic Category
ISO 19115 Topic Category
ISO 19115 Topic Category
None alternative energy planning
None coastal energy planning
None environment
None environmental
None environmental energy planning
None farming
None marine cadastre
None marine spatial planning
None national
None ocean energy planning
None oceans
None offshore energy planning
None planningCadastre
None renewable energy planning
None United States
None wave energy planning
None wave energy production

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
None Atlantic
None Pacific

Physical Location

City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: Map (digital)
Distribution Liability:

Data Set Credit: Department of Energy National Renewable Energy Laboratory, NOAA National Centers for Coastal Ocean Science, Bureau of Ocean Energy Management, NOAA Office for Coastal Management

Support Roles

Point of Contact

CC ID: 1117304
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address:
Phone: (843) 740-1202


Currentness Reference: Publication Date

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1117314
W° Bound: -179.933
E° Bound: 179.933
N° Bound: 63
S° Bound: 17

Access Information

Security Class: Unclassified
Data Use Constraints:

For coastal and ocean planning

Distribution Information

Distribution 1

CC ID: 1117305
Download URL:

Distribution 2

CC ID: 1121392
Download URL:

Ocean Reports

Technical Environment


Version 6.2 (Build 9200) ; Esri ArcGIS

Data Quality


The attributes in this dataset are believed to be accurate.

Horizontal Positional Accuracy:

Maximum scale of intended use is 1:80,000.

Completeness Report:

Spatial and attribute properties are believed to be complete, although attribute information has been simplified. Geometric thresholds from original data are preserved. No tests have been completed for exhaustiveness.

Conceptual Consistency:

These data are believed to be logically consistent. Geometry is topologically clean.



Wave Hindcast Direction Monthly and Annual Summaries

CC ID: 1117311
Contact Name: Department of Energy (DOE), National Renewable Energy Laboratory (NREL), Alliance for Sustainable Energy, LLC (ALLIANCE)
Extent Type: Discrete
Extent Start Date/Time: 2018-08-01
Citation URL:
Citation URL Name: Source Online Linkage
Citation URL Description:

URL where the source data were originally accessed.

Source Contribution:

Wave Hindcast Direction Monthly and Annual Summaries

Process Steps

Process Step 1

CC ID: 1117312

(1) Downloaded the data from the link above. Downloaded monthly and annual summaries for significant wave height, wave energy period, and wave hindcast direction. Data were only available for download in polygon Shapefile format. (2) Projected data to WGS 1984 World Mercator (ID: 3395).

Process Date/Time: 2018-08-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity Wave Direction (Annual Mean)

Catalog Details

Catalog Item ID: 66212
GUID: gov.noaa.nmfs.inport:66212
Metadata Record Created By: Brianna Key
Metadata Record Created: 2021-12-22 13:58+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-05-30 18:10+0000
Metadata Record Published: 2021-12-22
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-12-22
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-12-22