ERDDAP > info > HF_Radar_L3_Historic

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
		data	graph		files	Near Real Time Surface Ocean Velocity		F   I   M	background			ICATMAR	HF_Radar_L3_Historic

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	acknowledgement	String	ICATMAR HF Radar Network has been established with the support of the European Maritime and Fisheries Fund, the European Maritime, Fisheries and Aquaculture Fund, the Government of Catalonia and funds from the Interreg POCTEFA AFLE program through the OPALE project (EFA146/03, 2025-2027). The network has been designed, implemented and managed through the efforts of: the Direcció General de Política Marítima i Pesca Sostenible (Government of Catalonia), the Institut de Ciències del Mar (CSIC, Barcelona), and Centre de Formation et de Recherche sur l'Environnement Marin (CEFREM, Perpignan).
attribute	NC_GLOBAL	area	String	Mediterranean Sea
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	citation	String	These data were collected and made freely available by ICATMAR and the programs that contribute to it. Data was collected by the Government of Catalonia and CEFREM (France), and processed by ICATMAR with the support of the European Maritime, Fisheries and Aquaculture Fund (EMFAF) and the Climatic Funds Program of the Government of Catalonia.
attribute	NC_GLOBAL	Conventions	String	CF-1.10, COARDS, ACDD-1.3, NCCSV-1.2
attribute	NC_GLOBAL	creator_name	String	ICATMAR
attribute	NC_GLOBAL	dataset_version	String	v2
attribute	NC_GLOBAL	date_created	String	2026-04-17T13:44:27Z
attribute	NC_GLOBAL	date_modified	String	2026-04-17T13:44:27Z
attribute	NC_GLOBAL	distribution_statement	String	These data follow Copernicus standards; they are public and free of charge. User assumes all risk for use of data. User must display citation in any publication or product using data. User must contact ICATMAR prior to any commercial use of data.
attribute	NC_GLOBAL	doi	String	https://doi.org/10.20350/digitalCSIC/18102
attribute	NC_GLOBAL	Easternmost_Easting	double	4.1983
attribute	NC_GLOBAL	geospatial_lat_max	double	43.2031
attribute	NC_GLOBAL	geospatial_lat_min	double	40.3141
attribute	NC_GLOBAL	geospatial_lat_resolution	String	0.027
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	4.1983
attribute	NC_GLOBAL	geospatial_lon_min	double	0.06352
attribute	NC_GLOBAL	geospatial_lon_resolution	String	0.03534
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	0.0
attribute	NC_GLOBAL	geospatial_vertical_min	double	0.0
attribute	NC_GLOBAL	geospatial_vertical_positive	String	down
attribute	NC_GLOBAL	geospatial_vertical_units	String	m
attribute	NC_GLOBAL	grid_mapping__ChunkSizes	uint	1024
attribute	NC_GLOBAL	grid_mapping_epsg_code	String	EPSG:4326
attribute	NC_GLOBAL	grid_mapping_inverse_flattening	double	298.257223563
attribute	NC_GLOBAL	grid_mapping_long_name	String	Coordinate Reference System
attribute	NC_GLOBAL	grid_mapping_longitude_of_prime_meridian	double	0.0
attribute	NC_GLOBAL	grid_mapping_name	String	latitude_longitude
attribute	NC_GLOBAL	grid_mapping_semi_major_axis	double	6378137.0
attribute	NC_GLOBAL	history	String	2026-04-17T13:44:27Z data collected.2026-04-17T13:44:27Z NetCDF file created
attribute	NC_GLOBAL	id	String	HFR_ICATMAR_Total_2026-04-17T13:44:27Z
attribute	NC_GLOBAL	infoUrl	String	www.icatmar.cat
attribute	NC_GLOBAL	institution	String	ICATMAR
attribute	NC_GLOBAL	institution_edmo_code	String	5801
attribute	NC_GLOBAL	keywords	String	aggregate, aggregate_quality_flag, catalan, circulation, cov, covariance, cspd_qc, currents, data, ddns_qc, density, depth, deviation, dilution, earth, Earth Science > Oceans > Ocean Circulation > Ocean Currents, eastward, flag, gdop, gdop_qc, geometrical, governance, institute, near, near real\\n time, northward, nortward, nrt, ocean, oceans, overall, precision, qcflag, quality, real, research, science, sea, seawater, standard, statistics, stdu, stdv, surface, surface_eastward_sea_water_velocity, surface_northward_sea_water_velocity, threshold, time, u, v, variance, vart_qc, velocity, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	L2_source_files	String	RDLm_CREU_2026_04_17_1100_l2b.ruv; RDLm_CREU_2026_04_17_1100_l2b.ruv; RDLm_AREN_2026_04_17_1100_l2b.ruv; RDLm_PBCN_2026_04_17_1100_l2b.ruv; RDLm_GNST_2026_04_17_1100_l2b.ruv; RDLm_TOSS_2026_04_17_1100_l2b.ruv; RDLm_SCAL_2026_04_17_1100_l2b.ruv; RDLm_CNET_2026_04_17_1100_l2b.ruv
attribute	NC_GLOBAL	license	String	HF radar sea surface current velocity dataset by ICATMAR 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/.
attribute	NC_GLOBAL	Northernmost_Northing	double	43.2031
attribute	NC_GLOBAL	processing_level	String	3B
attribute	NC_GLOBAL	publisher_email	String	info at icatmar.cat
attribute	NC_GLOBAL	publisher_name	String	ICATMAR
attribute	NC_GLOBAL	publisher_type	String	institution
attribute	NC_GLOBAL	publisher_url	String	https://icatmar.cat
attribute	NC_GLOBAL	radials_combination_averaging_radius	String	6100 m
attribute	NC_GLOBAL	radials_combination_distance_method	String	haversine version 1.0 release 2023-02-27 as defined in merge_radials 0.6
attribute	NC_GLOBAL	radials_combination_grid	String	hfradar_totals_grid_icatmar.nc version 2.1 release 2026-03-05
attribute	NC_GLOBAL	radials_combination_method	String	unweighted least squares
attribute	NC_GLOBAL	radials_combination_software	String	merge_radials version 0.6 release 2026-02-23
attribute	NC_GLOBAL	references	String	Quirós-Collazos, L.; Bueno-Herrero, C.; Martínez, J.; Llorach-Tó, G.; González-Haro, C.; Ribera-Altamir, J.; Ballabrera, J.; García-Ladona, E.; Isern-Fontanet, J.: Level 3 velocity products from ICATMAR High-Frequency Radar network. 2024, ICATMAR Technical Report, number 3, pp:27. https://doi.org/10.20350/digitalCSIC/17191
attribute	NC_GLOBAL	source	String	Surface ocean velocity field from HF-radar
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	40.3141
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v70
attribute	NC_GLOBAL	summary	String	Near Real Time Surface Ocean Velocity
attribute	NC_GLOBAL	testOutOfDate	String	now-3days
attribute	NC_GLOBAL	time_coverage_end	String	2026-04-17T11:00:00Z
attribute	NC_GLOBAL	time_coverage_resolution	String	PT1H
attribute	NC_GLOBAL	time_coverage_start	String	2023-04-04T08:00:00Z
attribute	NC_GLOBAL	title	String	Near Real Time Surface Ocean Velocity
attribute	NC_GLOBAL	Westernmost_Easting	double	0.06352
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.6805952E9, 1.7764236E9
attribute	time	axis	String	T
attribute	time	calendar	String	standard
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	time of measurement UTC
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z
variable	depth		float
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	actual_range	float	0.0, 0.0
attribute	depth	axis	String	Z
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	Depth of measurement
attribute	depth	positive	String	down
attribute	depth	standard_name	String	depth
attribute	depth	units	String	m
attribute	depth	valid_range	float	0.0, 0.0
variable	latitude		float
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	float	40.3141, 43.2031
attribute	latitude	axis	String	Y
attribute	latitude	grid_mapping	String	crs
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
attribute	latitude	valid_range	float	-90.0, 90.0
variable	longitude		float
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	float	0.06352, 4.1983
attribute	longitude	axis	String	X
attribute	longitude	grid_mapping	String	crs
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
attribute	longitude	valid_range	float	-180.0, 180.0
variable	u		float
attribute	u	_FillValue	float	9.96921E36
attribute	u	actual_range	float	-47.70853, 39.64842
attribute	u	ancillary_variables	String	qcflag, vart_qc, cspd_qc, ddns_qc, gdop_qc
attribute	u	colorBarMaximum	double	0.5
attribute	u	colorBarMinimum	double	-0.5
attribute	u	ioos_category	String	Currents
attribute	u	long_name	String	Surface Eastward Sea Water Velocity
attribute	u	standard_name	String	surface_eastward_sea_water_velocity
attribute	u	units	String	m s-1
attribute	u	valid_range	float	-10.0, 10.0
variable	v		float
attribute	v	_FillValue	float	9.96921E36
attribute	v	actual_range	float	-31.83847, 31.83973
attribute	v	ancillary_variables	String	qcflag, vart_qc, cspd_qc, ddns_qc, gdop_qc
attribute	v	colorBarMaximum	double	0.5
attribute	v	colorBarMinimum	double	-0.5
attribute	v	ioos_category	String	Currents
attribute	v	long_name	String	Surface Nortward Sea Water Velocity
attribute	v	standard_name	String	surface_northward_sea_water_velocity
attribute	v	units	String	m s-1
attribute	v	valid_range	float	-10.0, 10.0
variable	stdu		float
attribute	stdu	_FillValue	float	9.96921E36
attribute	stdu	actual_range	float	6.1E-4, 64.28253
attribute	stdu	ancillary_variables	String	qcflag, vart_qc
attribute	stdu	colorBarMaximum	double	0.1
attribute	stdu	colorBarMinimum	double	0.0
attribute	stdu	ioos_category	String	Statistics
attribute	stdu	long_name	String	Standard Deviation Of Surface Eastward Sea Water Velocity
attribute	stdu	units	String	m s-1
attribute	stdu	valid_range	float	-10.0, 10.0
variable	stdv		float
attribute	stdv	_FillValue	float	9.96921E36
attribute	stdv	actual_range	float	6.7E-4, 40.62386
attribute	stdv	ancillary_variables	String	qcflag, vart_qc
attribute	stdv	colorBarMaximum	double	0.1
attribute	stdv	colorBarMinimum	double	0.0
attribute	stdv	ioos_category	String	Statistics
attribute	stdv	long_name	String	Standard Deviation Of Surface Northward Sea Water Velocity
attribute	stdv	units	String	m s-1
attribute	stdv	valid_range	float	-10.0, 10.0
variable	gdop		float
attribute	gdop	_FillValue	float	9.96921E36
attribute	gdop	actual_range	float	0.115, 309.551
attribute	gdop	ancillary_variables	String	qcflag, gdop_qc
attribute	gdop	colorBarMaximum	double	0.1
attribute	gdop	colorBarMinimum	double	0.0
attribute	gdop	ioos_category	String	Statistics
attribute	gdop	long_name	String	Geometrical Dilution Of Precision
attribute	gdop	units	String	1
attribute	gdop	valid_range	float	-20.0, 20.0
variable	cov		float
attribute	cov	_FillValue	float	9.96921E36
attribute	cov	actual_range	float	-1691.56, 107.0723
attribute	cov	ancillary_variables	String	qcflag
attribute	cov	colorBarMaximum	double	50.0
attribute	cov	colorBarMinimum	double	0.0
attribute	cov	ioos_category	String	Statistics
attribute	cov	long_name	String	Covariance Of Surface Sea Water Velocity
attribute	cov	units	String	m2 s-2
attribute	cov	valid_range	float	-20.0, 20.0
variable	qcflag		byte
attribute	qcflag	_FillValue	byte	-127
attribute	qcflag	actual_range	byte	0, 4
attribute	qcflag	colorBarMaximum	double	10.0
attribute	qcflag	colorBarMinimum	double	0.0
attribute	qcflag	flag_meanings	String	no_qc_performed good_data probably_good_data potentially_correctable_bad_data bad_data value_changed value_below_detection nominal_value interpolated_value missing_value
attribute	qcflag	flag_values	byte	0, 1, 2, 3, 4, 5, 6, 7, 8, 9
attribute	qcflag	ioos_category	String	Quality
attribute	qcflag	long_name	String	Overall quality flag
attribute	qcflag	standard_name	String	aggregate_quality_flag
attribute	qcflag	units	String	1
attribute	qcflag	valid_range	byte	0, 9
variable	vart_qc		byte
attribute	vart_qc	_FillValue	byte	-127
attribute	vart_qc	actual_range	byte	0, 4
attribute	vart_qc	colorBarMaximum	double	10.0
attribute	vart_qc	colorBarMinimum	double	0.0
attribute	vart_qc	flag_meanings	String	no_qc_performed good_data probably_good_data potentially_correctable_bad_data bad_data value_changed value_below_detection nominal_value interpolated_value missing_value
attribute	vart_qc	flag_values	byte	0, 1, 2, 3, 4, 5, 6, 7, 8, 9
attribute	vart_qc	ioos_category	String	Statistics
attribute	vart_qc	long_name	String	Variance threshold quality flag
attribute	vart_qc	units	String	1
attribute	vart_qc	valid_range	byte	0, 9
variable	gdop_qc		byte
attribute	gdop_qc	_FillValue	byte	-127
attribute	gdop_qc	actual_range	byte	0, 4
attribute	gdop_qc	colorBarMaximum	double	10.0
attribute	gdop_qc	colorBarMinimum	double	0.0
attribute	gdop_qc	flag_meanings	String	no_qc_performed good_data probably_good_data potentially_correctable_bad_data bad_data value_changed value_below_detection nominal_value interpolated_value missing_value
attribute	gdop_qc	flag_values	byte	0, 1, 2, 3, 4, 5, 6, 7, 8, 9
attribute	gdop_qc	ioos_category	String	Quality
attribute	gdop_qc	long_name	String	GDOP threshold quality flag
attribute	gdop_qc	units	String	1
attribute	gdop_qc	valid_range	byte	0, 9
variable	ddns_qc		byte
attribute	ddns_qc	_FillValue	byte	-127
attribute	ddns_qc	actual_range	byte	1, 4
attribute	ddns_qc	colorBarMaximum	double	10.0
attribute	ddns_qc	colorBarMinimum	double	0.0
attribute	ddns_qc	flag_meanings	String	no_qc_performed good_data probably_good_data potentially_correctable_bad_data bad_data value_changed value_below_detection nominal_value interpolated_value missing_value
attribute	ddns_qc	flag_values	byte	0, 1, 2, 3, 4, 5, 6, 7, 8, 9
attribute	ddns_qc	ioos_category	String	Quality
attribute	ddns_qc	long_name	String	Data density threshold quality flag
attribute	ddns_qc	units	String	1
attribute	ddns_qc	valid_range	byte	0, 9
variable	cspd_qc		byte
attribute	cspd_qc	_FillValue	byte	-127
attribute	cspd_qc	actual_range	byte	1, 4
attribute	cspd_qc	colorBarMaximum	double	10.0
attribute	cspd_qc	colorBarMinimum	double	0.0
attribute	cspd_qc	flag_meanings	String	no_qc_performed good_data probably_good_data potentially_correctable_bad_data bad_data value_changed value_below_detection nominal_value interpolated_value missing_value
attribute	cspd_qc	flag_values	byte	0, 1, 2, 3, 4, 5, 6, 7, 8, 9
attribute	cspd_qc	ioos_category	String	Quality
attribute	cspd_qc	long_name	String	Velocity threshold quality flag
attribute	cspd_qc	units	String	1
attribute	cspd_qc	valid_range	byte	0, 9

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.