HFR - NRT Surface Ocean Velocity, Alaskan North Slope, 6km Resolution - 2020-present

Surface ocean velocities estimated from High Frequency (HF)-Radar are representative of the upper 2.4 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 6km resolution grid of the Alaskan North Slope to produce near real-time surface current maps.

Simple

Date (Creation)
2023-11-14
Citation identifier
HFR_US_ALASKA_Total

data-erddap.emodnet-physics.eu

Cited responsible party
Organisation name Individual name Electronic mail address Role

EUHFRNODE

 		Originator

Lisa Hazard; Hugh Roarty; Mark Otero

hfrnet.administrators@sio.ucsd.edu; hfrnet.administrators@sio.ucsd.edu; hfrnet.administrators@sio.ucsd.edu

contributor
Credit

HFR-US-Alaska HF Radar Network has been established within the Integrated Ocean Observing System (IOOS) program.
Point of contact
Organisation name Individual name Electronic mail address Role

EUHFRNODE

 		Point of contact
Theme

  • 6km

  • alaskan

  • center

  • circulation

  • coastal

  • component

  • cordc

  • current

  • currents

  • data

  • density

  • development

  • deviation

  • dilution

  • earth

  • east

  • eastward

  • EWCS

  • EWCT

  • flag

  • frequency

  • gdop

  • geometrical

  • HF

  • hf radar

  • hfradar

  • high

  • near

  • near real time

  • near-real

  • north

  • northward

  • nrt

  • NSCS

  • NSCT

  • observing

  • ocean

  • ocean currents

  • oceans

  • onc

  • overall

  • position

  • precision

  • QCflag

  • quality

  • radar

  • real

  • research

  • resolution

  • science

  • scr-hf

  • sea

  • seawater

  • slope

  • south

  • south-north

  • standard

  • surface

  • surface water

  • threshold

  • uaf

  • variance

  • velocity

  • water

  • west

  • west-east

GCMD Science Keywords

  • Earth Science > Oceans > Ocean Circulation > Ocean Currents
project

  • Integrated Ocean Observing System (IOOS)

CF Standard Name Table v70

  • time

  • depth

  • latitude

  • longitude

  • eastward_sea_water_velocity

  • northward_sea_water_velocity
Use limitation

HF radar sea surface current velocity dataset by CORDC is licensed under a Creative Commons Attribution 4.0 International License. You should have received a copy of the license along with this work. If not, see https://creativecommons.org/licenses/by/4.0/.

Association Type
Larger work citation
Initiative Type
Project
Aggregate Datasetindentifier
Grid
Association Type
Larger work citation
Initiative Type
Project
Language
English
Topic category
  • Geoscientific information
N
S
E
W
thumbnail




Begin date
2020-07-24T00:00:00Z
End date
2022-12-13T02:00:00Z

Vertical extent

Minimum value
-0.0
Maximum value
-0.0
Number of dimensions
4
Dimension name
Column
Dimension size
318
Resolution
0.14345993690851735  deg{east}
Dimension name
Row
Dimension size
113
Resolution
0.05394  deg{north}
Dimension name
Vertical
Dimension size
1
Dimension name
temporal
Dimension size
6254
Resolution
12049.89604989605  s
Cell geometry
Area

Distributor

Distributor contact
Organisation name Individual name Electronic mail address Role

ETT S.p.A. - People and Technology

ETT Ricerca

marco.alba@ettsolutions.com

Distributor
Distributor format
Name Version

OPeNDAP

DAP/2.0
OnLine resource
Protocol Linkage Name

order

 		https://data-erddap.emodnet-physics.eu/erddap/griddap/HFR_US_ALASKA_Total.html

Data Subset Form
OnLine resource
Protocol Linkage Name

order

 		https://data-erddap.emodnet-physics.eu/erddap/griddap/HFR_US_ALASKA_Total.graph

Make-A-Graph Form
Content type
Physical measurement
Name

EWCT
Type name

double
Description

West-east current component
Name

NSCT
Type name

double
Description

South-north current component
Name

EWCS
Type name

double
Description

Standard deviation of surface eastward sea water velocity
Name

NSCS
Type name

double
Description

Standard deviation of surface northward sea water velocity
Name

GDOP
Type name

double
Description

Geometrical dilution of precision
Name

POSITION_QC
Type name

byte
Description

Position quality flag
Name

QCflag
Type name

byte
Description

Overall quality flag
Name

VART_QC
Type name

byte
Description

Variance threshold quality flag
Name

GDOP_QC
Type name

byte
Description

GDOP threshold quality flag
Name

DDNS_QC
Type name

byte
Description

Data density threshold quality flag
Name

CSPD_QC
Type name

byte
Description

Velocity threshold quality flag

Metadata

File identifier
HFR_US_ALASKA_Total XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2023-11-24T14:59:44
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)
Metadata author
Organisation name Individual name Electronic mail address Role

ETT S.p.A. - People and Technology

ETT Ricerca

marco.alba@ettsolutions.com

Point of contact
 
 

Overviews

Spatial extent

thumbnail

Keywords

6km EWCS EWCT HF Integrated Ocean Observing System (IOOS) NSCS NSCT QCflag alaskan center circulation coastal component cordc current currents data density development deviation dilution earth east eastward flag frequency gdop geometrical hf radar hfradar high near near real time near-real north northward nrt observing ocean ocean currents oceans onc overall position precision quality radar real research resolution science scr-hf sea seawater slope south south-north standard surface surface water threshold uaf variance velocity water west west-east
CF Standard Name Table v70

depth eastward_sea_water_velocity latitude longitude northward_sea_water_velocity time
GCMD Science Keywords

Earth Science > Oceans > Ocean Circulation > Ocean Currents


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