Wave Power Average Annual Maximum Anomaly, 2000-2013 - Hawaii

Wave power is a major environmental forcing mechanism in Hawaii that influences a number of marine ecosystem processes including coral reef community development, structure, and persistence. By driving mixing of the upper water column, wave forcing can also play a role in nutrient availability and ocean temperature reduction during warming events. Wave forcing in Hawaii is highly seasonal, with winter months typically experiencing far greater wave power than that experienced during the summer months. This layer represents the annual average of the maximum anomaly of wave power (kW/m) from 2000-2013. Data were obtained from the University of Hawaii at Manoa (UH) School of Ocean and Earth Science and Technology (SOEST) SWAN model (Simulating WAves Nearshore) following Li et al. (2016).

Hourly 500-m SWAN model runs of wave power were converted to maximum daily wave power from 1979-2013 and then averaged over each month from 1979-2013, creating a monthly time series from which monthly climatologies were made. Time series of anomalies were calculated by quantifying the number and magnitude of events from the maximum daily data set that exceeded the maximum climatological monthly mean. Pixels were removed directly adjacent to coastlines owing to the model being too coarse to handle extreme refraction and dissipation. Nearshore map pixels with no data were filled with values from the nearest neighboring valid offshore pixel by using a grid of points and the Near Analysis tool in ArcGIS then converting points to raster.

The average annual maximum wave power anomaly was calculated by taking the average of the annual maximum wave power values in exceedance of the maximum monthly climatological wave power from 2000-2013 for each 500-m grid cell.

Data and Resources

Field Value
access_constraints []
bbox-east-long -154.6395224787197
bbox-north-lat 22.34241287859609
bbox-south-lat 18.79565273726957
bbox-west-long -160.33883160356046
contact-email kappel@nceas.ucsb.edu
coupled-resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
dataset-reference-date [{"type": "creation", "value": "2017-03-14"}, {"type": "issued", "value": "2017-03-14"}, {"type": "revision", "value": "2017-03-14"}]
graphic-preview-description Sample image.
graphic-preview-file http://pacioos.org/metadata/browse/hi_otp_all_wave_anom_max.png
guid hi_otp_all_wave_anom_max
licence []
lineage 2017-03-14T00:00:00Z OGC web services (WMS and WFS) enabled by PacIOOS via GeoServer. Original data from source provider may have been reformatted, reprojected, or adjusted in other ways to optimize these capabilities.
metadata-date 2024-11-14
metadata-language eng
metadata_type geospatial
old-spatial {"type": "Polygon", "coordinates": [[[-160.33883160356046, 18.79565273726957], [-154.6395224787197, 18.79565273726957], [-154.6395224787197, 22.34241287859609], [-160.33883160356046, 22.34241287859609], [-160.33883160356046, 18.79565273726957]]]}
resource-type dataset
responsible-party [{"name": "National Center for Ecological Analysis and Synthesis (NCEAS)", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-160.33883160356046, 18.79565273726957], [-154.6395224787197, 18.79565273726957], [-154.6395224787197, 22.34241287859609], [-160.33883160356046, 22.34241287859609], [-160.33883160356046, 18.79565273726957]]]}
spatial-data-service-type Open Geospatial Consortium Web Coverage Service (WCS)
spatial_harvester true
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • aquatic ecosystems
  • biosphere
  • central pacific ocean
  • coastal areas
  • coastal processes
  • continent
  • coral reef
  • coral reefs
  • earth science
  • ecosystems
  • hawaii
  • hawaiian islands
  • human dimensions
  • human settlements
  • marine ecosystems
  • north america
  • ocean
  • ocean waves
  • oceans
  • pacific islands ocean observing system
  • pacific ocean
  • pacioos
  • reef
  • reef habitat
  • united states of america
  • wave power
isopen False
metadata_created 2025-09-23T15:15:11.633027
metadata_modified 2025-09-23T15:15:11.633034
notes Wave power is a major environmental forcing mechanism in Hawaii that influences a number of marine ecosystem processes including coral reef community development, structure, and persistence. By driving mixing of the upper water column, wave forcing can also play a role in nutrient availability and ocean temperature reduction during warming events. Wave forcing in Hawaii is highly seasonal, with winter months typically experiencing far greater wave power than that experienced during the summer months. This layer represents the annual average of the maximum anomaly of wave power (kW/m) from 2000-2013. Data were obtained from the University of Hawaii at Manoa (UH) School of Ocean and Earth Science and Technology (SOEST) SWAN model (Simulating WAves Nearshore) following Li et al. (2016). Hourly 500-m SWAN model runs of wave power were converted to maximum daily wave power from 1979-2013 and then averaged over each month from 1979-2013, creating a monthly time series from which monthly climatologies were made. Time series of anomalies were calculated by quantifying the number and magnitude of events from the maximum daily data set that exceeded the maximum climatological monthly mean. Pixels were removed directly adjacent to coastlines owing to the model being too coarse to handle extreme refraction and dissipation. Nearshore map pixels with no data were filled with values from the nearest neighboring valid offshore pixel by using a grid of points and the Near Analysis tool in ArcGIS then converting points to raster. The average annual maximum wave power anomaly was calculated by taking the average of the annual maximum wave power values in exceedance of the maximum monthly climatological wave power from 2000-2013 for each 500-m grid cell.
num_resources 13
num_tags 34
title Wave Power Average Annual Maximum Anomaly, 2000-2013 - Hawaii