Citation:
Citation Information:
Title:
Near-Real Time Subtidal Surface Ocean Velocity, Hawaiian Islands, 1km Resolution
Date:
Date: January 1, 2012
Date Type:
creation
(CI_DateTypeCode)
Identifier:
Code:
hfradar_ushi_1km_25hravg
Authority:
us.ioos.hfradar
Responsible Party:
Organization Name:
U.S. Integrated Ocean Observing System (IOOS) High Frequency Radar Network (HFRNet)
Contact:
Contact Address:
Email:
data.ioos@noaa.gov
Online Resource:
Linkage: https://hfradar.ioos.us
Protocol:
http
Function:
information
(CI_OnLineFunctionCode)
Contact Role:
originator
(CI_RoleCode)
Responsible Party:
Individual Name:
Pierre Flament
Organization Name:
University of Hawaii at Manoa
Contact:
Contact Address:
Email:
pflament@hawaii.edu
Online Resource:
Linkage: https://www.oceanphysics.org/wiki/index.php?n=Staff.PierreFlament
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:
resourceProvider
(CI_RoleCode)
Responsible Party:
Organization Name:
NOAA National Data Buoy Center (NDBC)
Contact:
Contact Address:
Email:
webmaster.ndbc@noaa.gov
Online Resource:
Linkage: https://www.ndbc.noaa.gov
Protocol:
http
Function:
information
(CI_OnLineFunctionCode)
Contact Role:
publisher
(CI_RoleCode)
Suggested data citation: U.S. Integrated Ocean Observing System (IOOS) High Frequency Radar Network (HFRNet), P. Flament, and Pacific Islands Ocean Observing System (PacIOOS). 2012, updated 2025. Near-Real Time Subtidal Surface Ocean Velocity, Hawaiian Islands, 1km Resolution. [Indicate temporal subset used.] Distributed by the NOAA National Data Buoy Center (NDBC). http://pacioos.org/metadata/hfradar_ushi_1km_25hravg.html. Accessed [date].
Abstract:
Surface ocean velocities estimated from HF-Radar (HFR) are representative of the upper 0.5 meters of the ocean. The main objective of near-real time processing is to produce the best product from available data at the time of processing. Radial velocity measurements are obtained from individual radar sites through the U.S. HF-Radar Network. Hourly radial data are processed by unweighted least squares on a 1km resolution grid of the Hawaiian Islands to produce near real-time surface current maps. The subtidal current is estimated by applying a 25 hour moving average filter to the hourly surface current maps for the most recent 90 days.
Point of Contact:
Responsible Party:
Organization Name:
U.S. Integrated Ocean Observing System (IOOS) High Frequency Radar Network (HFRNet)
Contact:
Contact Address:
Email:
data.ioos@noaa.gov
Online Resource:
Linkage: https://hfradar.ioos.us
Protocol:
http
Function:
information
(CI_OnLineFunctionCode)
Contact Role:
pointOfContact
(CI_RoleCode)
Browse Graphic:
View full image
Image File: http://www.pacioos.hawaii.edu/metadata/browse/hfradar_ushi_1km_25hravg.png
File Description:
Sample image.
Browse Graphic:
View full image
Image File: http://www.pacioos.hawaii.edu/metadata/browse/hfradar_ushi_1km_25hravg.2.png
File Description:
Photo of one of the instrument sites. Credit: PacIOOS/Fiona Langenberger.
Descriptive Keywords:
Keywords:
Keyword Type:
theme
(MD_KeywordTypeCode)
Keyword: Earth Science Oceans Ocean Circulation Ocean Currents
Keyword: Earth Science Spectral/Engineering Radio Wave
Keyword Thesaurus:
Citation Information:
Title:
GCMD Science Keywords
Keywords:
Keyword Type:
theme
(MD_KeywordTypeCode)
Keyword: In Situ Land-based Platforms Radio Transmitters
Keyword Thesaurus:
Citation Information:
Title:
GCMD Platform Keywords
Keywords:
Keyword Type:
theme
(MD_KeywordTypeCode)
Keyword: Earth Remote Sensing Instruments Active Remote Sensing Profilers/Sounders Radar Sounders SCR-HF Surface Current Radar
Keyword Thesaurus:
Citation Information:
Title:
GCMD Instrument Keywords
Keywords:
Keyword Type:
place
(MD_KeywordTypeCode)
Keyword: Continent North America United States Of America Hawaii
Keyword: Ocean Pacific Ocean Central Pacific Ocean Hawaiian Islands Big Island
Keyword: Ocean Pacific Ocean Central Pacific Ocean Hawaiian Islands Hawaii Island Hilo
Keyword: Ocean Pacific Ocean Central Pacific Ocean Hawaiian Islands Oahu Honolulu
Keyword: Ocean Pacific Ocean Central Pacific Ocean Hawaiian Islands Oahu Waianae
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: depth
Keyword: latitude
Keyword: longitude
Keyword: surface_eastward_sea_water_velocity
Keyword: surface_northward_sea_water_velocity
Keyword: time
Keyword Thesaurus:
Citation Information:
Title:
CF Standard Name Table v39
Language:
eng
Topic Category:
oceans
Extent Information:
Spatial Temporal Extent:
Geographic Element:
Bounding Coordinates:
Westbound Longitude: -163.14439°
Eastbound Longitude: -151.95649°
Southbound Latitude: 16.22039°
Northbound Latitude: 24.91687°
Temporal Element:
Time Period:
Description: seconds
Begin Position: October 14, 2025
End Position: now
Services:
Service Identification:
Identifier: OPeNDAP
Service Type:
THREDDS OPeNDAP
Contains Operation:
Operation Name:
OPeNDAP Client Access
Online Resource:
Linkage: https://dods.ndbc.noaa.gov/thredds/dodsC/hfradar_ushi_1km_25hravg
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://dods.ndbc.noaa.gov/thredds/wcs/hfradar_ushi_1km_25hravg?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: THREDDS_NetCDF_Subset
Service Type:
THREDDS NetCDF Subset Service
Contains Operation:
Operation Name:
NetCDFSubsetService
Online Resource:
Linkage: https://dods.ndbc.noaa.gov/thredds/ncss/grid/hfradar_ushi_1km_25hravg/dataset.html
Name:
THREDDS_NetCDF_Subset
Protocol:
UNIDATA:NCSS
Description:
THREDDS NetCDF Subset Service
Function:
download
(CI_OnLineFunctionCode)
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