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Simulating WAves Nearshore (SWAN) Regional Wave Model: Palau

Identification Information

Citation:

Citation Information:

Title: Simulating WAves Nearshore (SWAN) Regional Wave Model: Palau

Date:

Date: May 30, 2025
Date Type: creation (CI_DateTypeCode)
Identifier:
Code: swan_palau
Authority: org.pacioos

Responsible Party:

Individual Name: Ning Li
Organization Name: University of Hawaii at Manoa
Contact:

Contact Address:

Email: ningli@hawaii.edu
Contact Role: originator (CI_RoleCode)

Responsible Party:

Individual Name: Kwok Fai Cheung
Organization Name: University of Hawaii at Manoa
Contact:

Contact Address:

Email: cheung@hawaii.edu

Online Resource:

Linkage: http://www.soest.hawaii.edu/ore/people/faculty/kwok-fai-cheung/
Protocol: http
Function: information (CI_OnLineFunctionCode)
Contact Role: originator (CI_RoleCode)

Responsible Party:

Organization Name: Pacific Islands Ocean Observing System (PacIOOS)
Contact:

Contact Address:

Email: info@pacioos.org

Online Resource:

Linkage: http://pacioos.org
Protocol: http
Function: information (CI_OnLineFunctionCode)
Contact Role: publisher (CI_RoleCode)

Suggested data citation: Li, N. and K.F. Cheung. 2025. Simulating WAves Nearshore (SWAN) Regional Wave Model: Palau. [Indicate temporal subset used.] Distributed by the Pacific Islands Ocean Observing System (PacIOOS). http://pacioos.org/metadata/swan_palau.html. Accessed [date].

Abstract:

Simulating WAves Nearshore (SWAN) regional wave model 14-day hourly forecast for the Republic of Palau. The computation utilizes spatial resolution ranging from 3,000 m in the open ocean to 50 m at the shore, with model results interpolated to a 275-m grid for display and archive. This high-resolution model captures key coastal wave processes such as refraction, shoaling, breaking, and shadowing to provide a general indication of the nearshore environment. Boundary conditions are derived from global and regional WaveWatch III models operated by PacIOOS. Global wind forcing and polar ice coverage are provided by NOAA's Global Forecast System (GFS), while astronomical tide levels are defined using the Oregon State University Tidal Prediction Software (OTPS) to modulate wave transmission into reef lagoons. While considerable effort has been made to implement all model components in a thorough, correct, and accurate manner, various sources of uncertainty and error remain. As such, please use these data with the appropriate caution, especially for activities involving ocean safety or decision-making.

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.

Credit:

The Pacific Islands Ocean Observing System (PacIOOS) is funded through the National Oceanic and Atmospheric Administration (NOAA) as a Regional Association within the U.S. Integrated Ocean Observing System (IOOS). PacIOOS is coordinated by the University of Hawaii School of Ocean and Earth Science and Technology (SOEST). This forecast has been developed with support from the "Enhancing Climate Information and Knowledge Services for resilience in 5 island countries of the Pacific Ocean", referred to as UNEP CIS-Pac5, a USD 49.9 million program, led by the United Nations Environment Programme (UNEP) and funded by the Green Climate Fund (GCF). CIS-Pac5 seeks to establish integrated climate and ocean information systems and multi-hazard early warning systems in Cook Islands, Niue, Palau, Republic of Marshall Islands (RMI), and Tuvalu. The views expressed in this information product are those of the author(s) and the GCF cannot be held responsible for any use which may be made of the information contained therein. The forecast has been developed in collaboration with PacIOOS partners in the Republic of Palau. Special thanks to the Palau Weather Service, Palau Automated Land and Resources Information System (PALARIS), Palau National Emergency Management Office (NEMO), Coral Reef Research Foundation (CRRF), and numerous local contacts.

Point of Contact:

Responsible Party:

Individual Name: Ning Li
Organization Name: University of Hawaii at Manoa
Contact:

Contact Address:

Email: ningli@hawaii.edu
Contact Role: pointOfContact (CI_RoleCode)

Browse Graphic:


View full image

Image File: http://www.pacioos.hawaii.edu/metadata/browse/swan_palau.png

File Description:

Sample image.

Descriptive Keywords:

Keywords:

Keyword Type: theme (MD_KeywordTypeCode)

Keyword: Earth Science Oceans Ocean Waves Significant Wave Height
Keyword: Earth Science Oceans Ocean Waves Wave Period
Keyword: Earth Science Oceans Ocean Waves Wave Speed/Direction
Keyword: Earth Science Services Models Ocean General Circulation Models (OGCM)/Regional Ocean Models
Keyword: Earth Science Services Models Weather Research/Forecast Models

Keyword Thesaurus:

Citation Information:

Title: GCMD Science Keywords

Keywords:

Keyword Type: theme (MD_KeywordTypeCode)

Keyword: Models/Analyses Operational Models

Keyword Thesaurus:

Citation Information:

Title: GCMD Platform Keywords

Keywords:

Keyword Type: theme (MD_KeywordTypeCode)

Keyword: Not Applicable Not Applicable

Keyword Thesaurus:

Citation Information:

Title: GCMD Instrument Keywords

Keywords:

Keyword Type: place (MD_KeywordTypeCode)

Keyword: Ocean Pacific Ocean Western Pacific Ocean Micronesia Palau

Keyword Thesaurus:

Citation Information:

Title: GCMD Location Keywords

Keywords:

Keyword Type: project (MD_KeywordTypeCode)

Keyword: PacIOOS Pacific Islands Ocean Observing System

Keyword Thesaurus:

Citation Information:

Title: GCMD Project Keywords

Keywords:

Keyword Type: dataCenter (MD_KeywordTypeCode)

Keyword: PacIOOS Pacific Islands Ocean Observing System

Keyword Thesaurus:

Citation Information:

Title: GCMD Data Center Keywords

Keywords:

Keyword Type: theme (MD_KeywordTypeCode)

Keyword: latitude
Keyword: longitude
Keyword: sea_surface_wave_from_direction_at_variance_spectral_density_maximum
Keyword: sea_surface_wave_mean_from_direction
Keyword: sea_surface_wave_mean_period
Keyword: sea_surface_wave_period_at_variance_spectral_density_maximum
Keyword: sea_surface_wave_significant_height
Keyword: time

Keyword Thesaurus:

Citation Information:

Title: CF Standard Name Table v39

Aggregation Information:

Aggregate Dataset Name:

Citation Information:

Title: Pacific Islands Ocean Observing System (PacIOOS)

Association Type: largerWorkCitation (DS_AssociationTypeCode)

Initiative Type: project (DS_InitiativeTypeCode)

Aggregation Information:

Aggregate Dataset Identifier:

Code: Grid
Authority: Unidata Common Data Model

Association Type: largerWorkCitation (DS_AssociationTypeCode)

Initiative Type: project (DS_InitiativeTypeCode)

Resource Constraints:

Legal Constraints:

Use Limitation:

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.

Language:

eng

Topic Categories (MD_TopicCategoryCode):

Topic Category: oceans

Extent Information:

Spatial Temporal Extent:

Geographic Element:

Bounding Coordinates:

 
Westbound Longitude: 133.6°
Eastbound Longitude: 134.9°
Southbound Latitude: 6.4°
Northbound Latitude: 8.6°

Temporal Element:

Time Period:

Description: seconds
Begin Position: May 30, 2025
End Position: August 10, 2025

Services:

Service Identification:

Identifier: OPeNDAP

Service Type: THREDDS OPeNDAP

Contains Operation:

Operation Name: OPeNDAP Client Access

Online Resource:

Linkage: https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/swan_palau
Name: OPeNDAP
Protocol: OPeNDAP:OPeNDAP
Description: THREDDS OPeNDAP
Function: download (CI_OnLineFunctionCode)

Services:

Service Identification:

Identifier: OGC-WCS

Service Type: Open Geospatial Consortium Web Coverage Service (WCS)

Contains Operation:

Operation Name: GetCapabilities

Online Resource:

Linkage: https://pae-paha.pacioos.hawaii.edu/thredds/wcs/swan_palau?service=WCS&version=1.0.0&request=GetCapabilities
Name: OGC-WCS
Protocol: OGC:WCS
Description: Open Geospatial Consortium Web Coverage Service (WCS)
Function: download (CI_OnLineFunctionCode)

Services:

Service Identification:

Identifier: OGC-WMS

Service Type: Open Geospatial Consortium Web Map Service (WMS)

Contains Operation:

Operation Name: GetCapabilities

Online Resource:

Linkage: https://pae-paha.pacioos.hawaii.edu/thredds/wms/swan_palau?service=WMS&version=1.3.0&request=GetCapabilities
Name: OGC-WMS
Protocol: OGC:WMS
Description: Open Geospatial Consortium Web Map Service (WMS)
Function: download (CI_OnLineFunctionCode)

Services:

Service Identification:

Identifier: THREDDS_NetCDF_Subset

Service Type: THREDDS NetCDF Subset Service

Contains Operation:

Operation Name: NetCDFSubsetService

Online Resource:

Linkage: https://pae-paha.pacioos.hawaii.edu/thredds/ncss/swan_palau/dataset.html
Name: THREDDS_NetCDF_Subset
Protocol: UNIDATA:NCSS
Description: THREDDS NetCDF Subset Service
Function: download (CI_OnLineFunctionCode)

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Data Quality Information

Scope:

dataset

Lineage:

Statement:

2025-05-30T23:00:00Z New dataset; 2025-06-3023:00:00Z Added Ning Li as dataset creator and minor edits to dataset summary; added more details to the acknowledgements.

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Spatial Representation Information

Number Of Dimensions:

3

Axis Dimension Properties:

Dimension:

Dimension Name: column (MD_DimensionNameTypeCode)
Dimension Size: 521
Resolution: 0.00250 degrees_east

Dimension:

Dimension Name: row (MD_DimensionNameTypeCode)
Dimension Size: 881
Resolution: 0.00249 degrees_north

Dimension:

Dimension Name: temporal (MD_DimensionNameTypeCode)
Dimension Size: 1752
Resolution: 3600.0 seconds

Cell Geometry:

area (MD_CellGeometryCode)

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Content Information

Coverage Description:

Dimensions:

Dimension:

Attribute Name: pper
Attribute Type: float
Units: seconds
Descriptor:

peak wave period (sea_surface_wave_period_at_variance_spectral_density_maximum)

Dimension:

Attribute Name: mdir
Attribute Type: float
Units: degrees
Descriptor:

mean wave direction (sea_surface_wave_mean_from_direction)

Dimension:

Attribute Name: mper
Attribute Type: float
Units: seconds
Descriptor:

mean wave period (sea_surface_wave_mean_period)

Dimension:

Attribute Name: pdir
Attribute Type: float
Units: degrees
Descriptor:

peak wave direction (sea_surface_wave_from_direction_at_variance_spectral_density_maximum)

Dimension:

Attribute Name: shgt
Attribute Type: float
Units: meters
Descriptor:

significant wave height (sea_surface_wave_significant_height)

Dimension:

Attribute Name: lat
Attribute Type: double
Units: degrees_north
Descriptor:

latitude (latitude)

Dimension:

Attribute Name: lon
Attribute Type: double
Units: degrees_east
Descriptor:

longitude (longitude)

Dimension:

Attribute Name: time
Attribute Type: int
Units: hours since 1990-01-01 00-00-00
Descriptor:

time (time)

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Distribution Information

Distributor:

Distributor Contact:

Responsible Party:

Organization Name: Pacific Islands Ocean Observing System (PacIOOS)
Contact:

Contact Address:

Email: info@pacioos.org

Online Resource:

Linkage: http://pacioos.org
Protocol: http
Function: information (CI_OnLineFunctionCode)
Contact Role: publisher (CI_RoleCode)

Distributor Formats:

Name: OPeNDAP
Version: DAP/2.0

Distributor Transfer Options:

Online Resource:

Linkage: https://pae-paha.pacioos.hawaii.edu/thredds/wav_mod.html?dataset=swan_palau
Name: THREDDS Catalog
Protocol: UNIDATA:THREDDS
Description: This URL provides a catalog page for this dataset within THREDDS Data Server (TDS).
Function: download (CI_OnLineFunctionCode)

Online Resource:

Linkage: https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/swan_palau.html
Name: File Information
Protocol: http
Description: This URL provides a standard OPeNDAP html interface for selecting data from this dataset. Change the extension to .info for a description of the dataset.
Function: download (CI_OnLineFunctionCode)

Online Resource:

Linkage: http://pacioos.org/voyager/index.html?b=5.691145%2C130.901917%2C9.301368%2C137.598083&t=h&o=sfore:1:ft:d16
Name: PacIOOS Voyager (Google Maps API)
Protocol: http
Description: This URL provides a viewer and/or data access for this dataset.
Function: download (CI_PresentationFormCode)

Online Resource:

Linkage: http://pacioos.org/waves/model-palau/
Name: PacIOOS website
Protocol: http
Description: This URL provides a viewer and/or data access for this dataset.
Function: download (CI_PresentationFormCode)

Online Resource:

Linkage: https://pae-paha.pacioos.hawaii.edu/erddap/griddap/swan_palau
Name: ERDDAP
Protocol: ERDDAP:griddap
Description: This URL provides a viewer and/or data access for this dataset.
Function: download (CI_PresentationFormCode)

Online Resource:

Linkage: http://swanmodel.sourceforge.net
Name: Related URL
Protocol: http
Description: This URL provides additional information related to this dataset.
Function: information (CI_OnLineFunctionCode)

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Metadata Reference Information

File Identifier:

http://pacioos.org/metadata/iso/swan_palau.xml

Language:

eng

Character Set:

UTF8 (MD_CharacterSetCode)

Hierarchy Level:

dataset (MD_ScopeCode)

Hierarchy Level:

service (MD_ScopeCode)

Contact:

Responsible Party:

Individual Name: Ning Li
Organization Name: University of Hawaii at Manoa
Contact:

Contact Address:

Email: ningli@hawaii.edu
Contact Role: pointOfContact (CI_RoleCode)

Date Stamp:

July 29, 2025

Metadata Maintenance Information:

Maintenance And Update Frequency: unknown

Maintenance Note:

This record was translated from NcML using UnidataDD2MI.xsl Version 2.3.

Metadata Standard Name:

ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data

Metadata Standard Version:

ISO 19115-2:2009(E)

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Metadata Views

ISO Text-Only

International Organization for Standardization (ISO) in plain text

ISO XML

International Organization for Standardization (ISO) in Extensible Markup Language (XML)