Simulating WAves Nearshore (SWAN) Regional Wave Model: Manua, American Samoa

Simulating WAves Nearshore (SWAN) regional wave model 7-day output with a 5-day hourly forecast for the Manua Islands (Ofu, Olosega, and Tau) of American Samoa at approximately 275-m resolution. This high-resolution model is utilized to capture shallow water effects and nearshore coastal dynamics such as refracting, shoaling, and smaller scale shadowing. It is run directly after the Samoa regional WaveWatch III (WW3) wave model (ww3_samoa) has completed. Please note that some of the nested model setup is still in the testing and validation phase. While considerable effort has been made to implement all model components in a thorough, correct, and accurate manner, numerous sources of error are possible. As such, please use these data with the caution appropriate for any ocean related activity.

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Metadata Date

2026-05-06

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Distribution Formats
  • OPeNDAP (Version: DAP/2.0 )
Distributor University of Hawaii at Manoa
Point of Contact Kwok Fai Cheung
University of Hawaii at Manoa
cheung@hawaii.edu
Online Resource
Originator Kwok Fai Cheung
University of Hawaii at Manoa
cheung@hawaii.edu
Online Resource
Publisher Pacific Islands Ocean Observing System (PacIOOS)
info@pacioos.org
Online Resource
Dataset Point of Contact Pacific Islands Ocean Observing System (PacIOOS)
info@pacioos.org
General Documentation

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Associated Documentation Pacific Islands Ocean Observing System (PacIOOS)
Date(s) creation: 2019-08-20
issued: 2019-08-20
revision: 2025-01-15
creation: 2019-08-20
issued: 2019-08-20
revision: 2025-01-15
creation: 2019-08-20
issued: 2019-08-20
revision: 2025-01-15
creation: 2019-08-20
issued: 2019-08-20
revision: 2025-01-15
creation: 2019-08-20
issued: 2019-08-20
revision: 2025-01-15
Purpose PacIOOS provides timely, reliable, and accurate ocean information to support a safe, clean, productive ocean and resilient coastal zone in the U.S. Pacific Islands region.
Use Limitations The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, University of Hawaii, PacIOOS, NOAA, State of Hawaii nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
Time Period 2019-07-19T21:00:00Z to 2026-05-12T18:00:00Z
Spatial Bounding Box Coordinates N: -14.05° S: -14.35° E: 190.65° W: 190.25°
Theme keywords GCMD Science Keywords
  • Earth Science Services > Models > Ocean General Circulation Models (OGCM)/Regional Ocean Models
  • Earth Science Services > Models > Weather Research/Forecast Models
  • Earth Science > Oceans > Ocean Waves > Significant Wave Height
  • Earth Science > Oceans > Ocean Waves > Wave Period
  • Earth Science > Oceans > Ocean Waves > Wave Speed/Direction

GCMD Platform Keywords
  • Models/Analyses > > Operational Models

GCMD Instrument Keywords
  • Not Applicable > Not Applicable

CF Standard Name Table v39
  • sea_surface_wave_significant_height
  • sea_surface_wave_mean_period
  • sea_surface_wave_mean_from_direction
  • sea_surface_wave_period_at_variance_spectral_density_maximum
  • sea_surface_wave_from_direction_at_variance_spectral_density_maximum
  • forecast_period
  • longitude
  • latitude
  • depth
  • time
  • forecast_reference_time
Data Center keywords GCMD Data Center Keywords
  • PacIOOS > Pacific Islands Ocean Observing System
Place keywords GCMD Location Keywords
  • Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Manua
  • Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Ofu
  • Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Olosega
  • Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Tau
Project keywords GCMD Project Keywords
  • PacIOOS > Pacific Islands Ocean Observing System
Use Constraints The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, University of Hawaii, PacIOOS, NOAA, State of Hawaii nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
Lineage Statement 2019-08-20T00:00:00Z New dataset. 2023-02-01T19:46:00Z Floating-point precision adjusted for lat and lon variables to ensure regular grid spacing. 2025-01-15T22:15:00Z Dates moved forward by one day to correct for leap year in model runs for March 1 through December 31, 2024. 2025-05-08T21:00:00Z Modified standard_name of mdir and pdir variables from sea_surface_wave_from_direction to sea_surface_wave_mean_from_direction and sea_surface_wave_from_direction_at_variance_spectral_density_maximum to indicate mean and peak wave directions. Modified standard_name of mper variable from sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment to sea_surface_wave_mean_period.
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