ERDDAP > info > EUHFR_NRTcurrent_HFR-CALYPSO-Total

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	M	files	Near Real Time Surface Ocean Total Velocity by HFR-CALYPSO-Total		F   I   M	background			CNR-IAS	EUHFR_NRTcurrent_HFR-CALYPSO-Total

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	acknowledgement	String	Surface current data were obtained by the HF radar network installed as part of the CALYPSO, CALYPSO FollowOn, and CALYPSO SOUTH projects under partial sponsorship of the EU Operational Programme Italia‑Malta 2007‑2013. The network is managed by the University of Malta (Dr Adam Gauci), the University of Palermo (Prof. Giuseppe Ciraolo and Dr Fulvio Capodici), the CNR-IAS (Dr. Salvatore Aronica) and the ARPA-Sicilia (Dr. Salvatore Campanella). More information can be obtained from: http://calypsosouth.eu
attribute	NC_GLOBAL	area	String	Sicily-Malta Channel
attribute	NC_GLOBAL	calibration_link	String	BARK: adam.gauci@um.edu.mt, CENC: adam.gauci@um.edu.mt, LAPS: adam.gauci@um.edu.mt, LICA: fulvio.capodici@unipa.it, MRAG: salvatore.aronica@cnr.it, fulvio.capodici@unipa.it, POZZ: fulvio.capodici@unipa.it, SOPU: adam.gauci@um.edu.mt
attribute	NC_GLOBAL	calibration_type	String	BARK: APM, CENC: APM, LAPS: APM, LICA: APM, MRAG: APM, POZZ: APM, SOPU: APM
attribute	NC_GLOBAL	cdm_data_type	String	Grid
attribute	NC_GLOBAL	citation	String	These data were collected and made freely available by the EuroGOOS European HFR Node. Surface current data were obtained by the HF radar network installed as part of the CALYPSO, CALYPSO FollowOn, and CALYPSO SOUTH projects under partial sponsorship of the EU Operational Programme Italia‑Malta 2007‑2013. The network is managed by the University of Malta (Dr Adam Gauci), the University of Palermo (Prof. Giuseppe Ciraolo and Dr Fulvio Capodici), the CNR-IAS (Dr. Salvatore Aronica) and the ARPA-Sicilia (Dr. Salvatore Campanella). More information can be obtained from: http://calypsosouth.eu
attribute	NC_GLOBAL	comment	String	Total velocities are derived using least square fit that maps radial velocities measured from individual sites onto a cartesian grid. The final product is a map of the horizontal components of the ocean currents on a regular grid in the area of overlap of two or more radar stations.
attribute	NC_GLOBAL	contributor_email	String	adam.gauci@um.edu.mt; giuseppe.ciraolo@unipa.it; fulvio.capodici@unipa.it, salvatore.aronica@cnr.it, scampanella@arpa.sicilia.it
attribute	NC_GLOBAL	contributor_name	String	Adam Gauci; Giuseppe Ciraolo; Fulvio Capodici, Salvatore Aronica, Salvatore Campanella
attribute	NC_GLOBAL	contributor_role	String	Project manager; Project manager; Project manager; Project manager; Project manager;
attribute	NC_GLOBAL	Conventions	String	CF-1.11, EuroGOOS European HFR Node, COARDS, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	lorenzo.corgnati at sp.ismar.cnr.it
attribute	NC_GLOBAL	creator_name	String	Lorenzo Corgnati
attribute	NC_GLOBAL	creator_type	String	person
attribute	NC_GLOBAL	creator_url	String	https://www.hfrnode.eu/
attribute	NC_GLOBAL	data_assembly_center	String	European HFR Node
attribute	NC_GLOBAL	data_character_set	String	utf8
attribute	NC_GLOBAL	data_language	String	eng
attribute	NC_GLOBAL	data_mode	String	R
attribute	NC_GLOBAL	data_type	String	HF radar total current data
attribute	NC_GLOBAL	date_created	String	2026-02-21T18:51:18Z
attribute	NC_GLOBAL	date_modified	String	2026-02-21T18:51:18Z
attribute	NC_GLOBAL	distribution_statement	String	These data 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 PI prior to any commercial use of data.
attribute	NC_GLOBAL	doa_estimation_method	String	BARK: Direction Finding, CENC: Direction Finding, LAPS: Direction Finding, LICA: Direction Finding, MRAG: Direction Finding, POZZ: Direction Finding, SOPU: Direction Finding
attribute	NC_GLOBAL	Easternmost_Easting	double	15.3651
attribute	NC_GLOBAL	format_version	String	v3
attribute	NC_GLOBAL	geospatial_lat_max	double	36.87775
attribute	NC_GLOBAL	geospatial_lat_min	double	35.74225
attribute	NC_GLOBAL	geospatial_lat_resolution	double	0.027035714285714295
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	15.3651
attribute	NC_GLOBAL	geospatial_lon_min	double	13.6949
attribute	NC_GLOBAL	geospatial_lon_resolution	double	0.03340399999999999
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	history	String	Data collected at 2026-02-21T18:00:00Z. netCDF file created at 2026-02-21T18:51:18Z by the European HFR Node.
attribute	NC_GLOBAL	id	String	HFR-CALYPSO-Total_2026-02-21T18:00:00Z
attribute	NC_GLOBAL	infoUrl	String	https://www.hfrnode.eu/
attribute	NC_GLOBAL	institution	String	CNR-IAS
attribute	NC_GLOBAL	institution_edmo_code	String	708, 1051, 5684, 5527
attribute	NC_GLOBAL	institution_references	String	https://www.calypsosouth.eu/, https://www.calypsosouth.eu, https://www.unipa.it/, https://www.ias.cnr.it/istituto/sedi/capo-granitola/
attribute	NC_GLOBAL	keywords	String	calypso, CCOV, circulation, cnr, cnr-ias, council, covariance, CSPD_QC, currents, data, DDNS_QC, density, depth, deviation, dilution, earth, Earth Science > Oceans > Ocean Circulation > Ocean Currents, eastward, EWCS, EWCT, flag, frequency, gdop, GDOP_QC, geometrical, HF, hf radar, hfr, hfr-calypso-total, hfradar, high, ias, latitude, longitude, national, near, near real time, northward, NSCS, NSCT, ocean, ocean currents, oceans, overall, position, POSITION_QC, precision, QCflag, quality, radar, real, research, science, scr-hf, sea, seawater, standard, surface, surface water, surface_eastward_sea_water_velocity, surface_northward_sea_water_velocity, threshold, time, total, variance, VART_QC, velocity, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	last_calibration_date	String	BARK: 2020-09-28T00:00:00Z, CENC: 2021-06-02T00:00:00Z, LAPS: 2020-07-15T00:00:00Z, LICA: 2021-06-17T00:00:00Z, MRAG: 2025-01-23T00:00:00Z, POZZ: 2021-08-19T00:00:00Z, SOPU: 2018-07-11T00:00:00Z
attribute	NC_GLOBAL	license	String	HF radar sea surface current velocity dataset 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	manufacturer	String	BARK: Codar, CENC: Codar, LAPS: Codar, LICA: Codar, MRAG: Codar, POZZ: Codar, SOPU: Codar
attribute	NC_GLOBAL	metadata_character_set	String	utf8
attribute	NC_GLOBAL	metadata_contact	String	lorenzo.corgnati at sp.ismar.cnr.it
attribute	NC_GLOBAL	metadata_date_stamp	String	2026-02-21T18:51:18Z
attribute	NC_GLOBAL	metadata_language	String	eng
attribute	NC_GLOBAL	naming_authority	String	eu.hfrnode
attribute	NC_GLOBAL	netcdf_format	String	NETCDF4_CLASSIC
attribute	NC_GLOBAL	netcdf_version	String	4.9.3
attribute	NC_GLOBAL	network	String	HFR-CALYPSO
attribute	NC_GLOBAL	Northernmost_Northing	double	36.87775
attribute	NC_GLOBAL	platform_code	String	HFR-CALYPSO-Total
attribute	NC_GLOBAL	processing_level	String	3B
attribute	NC_GLOBAL	project	String	CALYPSO, CALYPSO FO, CALYPSO SOUTH
attribute	NC_GLOBAL	publisher_email	String	euhfrnode at azti.es
attribute	NC_GLOBAL	publisher_name	String	European HFR Node
attribute	NC_GLOBAL	publisher_type	String	institution
attribute	NC_GLOBAL	publisher_url	String	https://www.hfrnode.eu/
attribute	NC_GLOBAL	qc_manual	String	Recommendation Report 2 on improved common procedures for HFR QC analysis: https://dx.doi.org/10.25607/OBP-944
attribute	NC_GLOBAL	reference_system	String	EPSG:4326
attribute	NC_GLOBAL	references	String	Recommendation Report 2 on improved common procedures for HFR QC analysis: https://dx.doi.org/10.25607/OBP-944
attribute	NC_GLOBAL	sensor_model	String	BARK: Codar, CENC: Codar, LAPS: Codar, LICA: Codar, MRAG: Codar, POZZ: Codar, SOPU: Codar
attribute	NC_GLOBAL	site_code	String	HFR-CALYPSO
attribute	NC_GLOBAL	software_name	String	EU_HFR_NODE_NRTprocessor
attribute	NC_GLOBAL	software_version	String	v3
attribute	NC_GLOBAL	source	String	coastal structure
attribute	NC_GLOBAL	source_platform_category_code	String	17
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	35.74225
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v70
attribute	NC_GLOBAL	summary	String	The data set consists of real-time continuous coastal ocean surface current maps in the Malta Channel (Western Mediterranean) averaged over a time interval of 1 hour around the cardinal hour, measured by the coastal High-Frequency Radars. Surface ocean velocities estimated by HF Radar are representative of the upper upper 0.3‑2.5 meters of the ocean.
attribute	NC_GLOBAL	testOutOfDate	String	now-1day
attribute	NC_GLOBAL	time_coverage_duration	String	PT1H
attribute	NC_GLOBAL	time_coverage_end	String	2026-02-21T18:00:00Z
attribute	NC_GLOBAL	time_coverage_resolution	String	PT1H
attribute	NC_GLOBAL	time_coverage_start	String	2022-11-22T13:00:00Z
attribute	NC_GLOBAL	title	String	Near Real Time Surface Ocean Total Velocity by HFR-CALYPSO-Total
attribute	NC_GLOBAL	topic_category	String	oceans
attribute	NC_GLOBAL	update_interval	String	void
attribute	NC_GLOBAL	Westernmost_Easting	double	13.6949
dimension	time		double	nValues=24607, evenlySpaced=false, averageSpacing=1h 9m 29s
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.669122E9, 1.7716968E9
attribute	time	ancillary_variables	String	TIME_QC
attribute	time	axis	String	T
attribute	time	calendar	String	standard
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Time
attribute	time	sdn_P02_urn	String	SDN:P02::AYMD
attribute	time	sdn_parameter_name	String	Elapsed time (since 1950-01-01T00:00:00Z)
attribute	time	sdn_parameter_urn	String	SDN:P01::ELTJLD01
attribute	time	sdn_uom_name	String	Days
attribute	time	sdn_uom_urn	String	SDN:P06::UTAA
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
dimension	depth		float	nValues=1, onlyValue=0.0
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	actual_range	float	0.0, 0.0
attribute	depth	ancillary_variables	String	DEPTH_QC
attribute	depth	axis	String	Z
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	Depth
attribute	depth	positive	String	down
attribute	depth	references	String	sea_level
attribute	depth	sdn_P02_urn	String	SDN:P02::AHGT
attribute	depth	sdn_parameter_name	String	Depth below surface of the water body
attribute	depth	sdn_parameter_urn	String	SDN:P01::ADEPZZ01
attribute	depth	sdn_uom_name	String	Metres
attribute	depth	sdn_uom_urn	String	SDN:P06::ULAA
attribute	depth	standard_name	String	depth
attribute	depth	units	String	m
dimension	latitude		float	nValues=43, evenlySpaced=true, averageSpacing=0.027035714285714295
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	float	35.74225, 36.87775
attribute	latitude	ancillary_variables	String	POSITION_QC
attribute	latitude	axis	String	Y
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	sdn_P02_urn	String	SDN:P02::ALAT
attribute	latitude	sdn_parameter_name	String	Latitude north
attribute	latitude	sdn_parameter_urn	String	SDN:P01::ALATZZ01
attribute	latitude	sdn_uom_name	String	Degrees north
attribute	latitude	sdn_uom_urn	String	SDN:P06::DEGN
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
dimension	longitude		float	nValues=51, evenlySpaced=true, averageSpacing=0.03340399999999999
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	float	13.6949, 15.3651
attribute	longitude	ancillary_variables	String	POSITION_QC
attribute	longitude	axis	String	X
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	sdn_P02_urn	String	SDN:P02::ALAT
attribute	longitude	sdn_parameter_name	String	Longitude east
attribute	longitude	sdn_parameter_urn	String	SDN:P01::ALONZZ01
attribute	longitude	sdn_uom_name	String	Degrees east
attribute	longitude	sdn_uom_urn	String	SDN:P06::DEGE
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	GDOP		double	time, depth, latitude, longitude
attribute	GDOP	_FillValue	double	-32.767
attribute	GDOP	ancillary_variables	String	QCflag GDOP_QC
attribute	GDOP	colorBarMaximum	double	0.1
attribute	GDOP	colorBarMinimum	double	0.0
attribute	GDOP	comment	String	The Geometric Dilution of Precision (GDOP) is the coefficient of the uncertainty, which relates the uncertainties in radial and velocity vectors. The GDOP is a unit-less coefficient, which characterizes the effect that radar station geometry has on the measurement and position determination errors. A low GDOP corresponds to an optimal geometric configuration of radar stations, and results in accurate surface current data. Essentially, GDOP is a quantitative way to relate the radial and velocity vector uncertainties. Setting a threshold on GDOP for total combination avoids the combination of radials with an intersection angle below a certain value. GDOP is a useful metric for filtering errant velocities due to poor geometry.
attribute	GDOP	long_name	String	Geometrical dilution of precision
attribute	GDOP	sdn_parameter_name	String	Dilution of precision
attribute	GDOP	sdn_parameter_urn	String	SDN:S06::S0600236
attribute	GDOP	sdn_uom_name	String	Dimensionless
attribute	GDOP	sdn_uom_urn	String	SDN:P06::UUUU
attribute	GDOP	units	String	1
attribute	GDOP	valid_max	double	20.0
attribute	GDOP	valid_min	double	-20.0
variable	DDNS_QC		byte	time, depth, latitude, longitude
attribute	DDNS_QC	_FillValue	byte	-127
attribute	DDNS_QC	colorBarMaximum	double	10.0
attribute	DDNS_QC	colorBarMinimum	double	0.0
attribute	DDNS_QC	comment	String	Data Density Threshold QC Test - Test applies to each vector. Threshold=[minimum number of contributing radial velocities=3]
attribute	DDNS_QC	conventions	String	EuroGOOS European HFR Node
attribute	DDNS_QC	flag_meanings	String	no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable 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	long_name	String	Data density threshold quality flag
attribute	DDNS_QC	units	String	1
attribute	DDNS_QC	valid_max	byte	9
attribute	DDNS_QC	valid_min	byte	0
variable	CSPD_QC		byte	time, depth, latitude, longitude
attribute	CSPD_QC	_FillValue	byte	-127
attribute	CSPD_QC	colorBarMaximum	double	10.0
attribute	CSPD_QC	colorBarMinimum	double	0.0
attribute	CSPD_QC	comment	String	Velocity Threshold QC Test - Test applies to each vector. Threshold=[maximum velocity=1.0 (m/s)]
attribute	CSPD_QC	conventions	String	EuroGOOS European HFR Node
attribute	CSPD_QC	flag_meanings	String	no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable 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	long_name	String	Velocity threshold quality flag
attribute	CSPD_QC	units	String	1
attribute	CSPD_QC	valid_max	byte	9
attribute	CSPD_QC	valid_min	byte	0
variable	VART_QC		byte	time, depth, latitude, longitude
attribute	VART_QC	_FillValue	byte	-127
attribute	VART_QC	colorBarMaximum	double	10.0
attribute	VART_QC	colorBarMinimum	double	0.0
attribute	VART_QC	comment	String	Variance Threshold QC Test not applicable to Direction Finding systems. Temporal Derivative QC Test - Test applies to each vector. Threshold=[velocity difference threshold=1.0 (m/s)]
attribute	VART_QC	conventions	String	EuroGOOS European HFR Node
attribute	VART_QC	flag_meanings	String	no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable 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	long_name	String	Variance threshold quality flag
attribute	VART_QC	units	String	1
attribute	VART_QC	valid_max	byte	9
attribute	VART_QC	valid_min	byte	0
variable	GDOP_QC		byte	time, depth, latitude, longitude
attribute	GDOP_QC	_FillValue	byte	-127
attribute	GDOP_QC	colorBarMaximum	double	10.0
attribute	GDOP_QC	colorBarMinimum	double	0.0
attribute	GDOP_QC	comment	String	GDOP Threshold QC Test - Test applies to each vector. Threshold=[GDOP threshold=20.0]
attribute	GDOP_QC	conventions	String	EuroGOOS European HFR Node
attribute	GDOP_QC	flag_meanings	String	no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable 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	long_name	String	GDOP threshold quality flag
attribute	GDOP_QC	units	String	1
attribute	GDOP_QC	valid_max	byte	9
attribute	GDOP_QC	valid_min	byte	0
variable	QCflag		byte	time, depth, latitude, longitude
attribute	QCflag	_FillValue	byte	-127
attribute	QCflag	colorBarMaximum	double	10.0
attribute	QCflag	colorBarMinimum	double	0.0
attribute	QCflag	comment	String	Overall QC Flag - Test applies to each vector. Test checks if all QC tests are passed.
attribute	QCflag	conventions	String	EuroGOOS European HFR Node
attribute	QCflag	flag_meanings	String	no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable 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	long_name	String	Overall quality flag
attribute	QCflag	units	String	1
attribute	QCflag	valid_max	byte	9
attribute	QCflag	valid_min	byte	0
variable	EWCT		double	time, depth, latitude, longitude
attribute	EWCT	_FillValue	double	-32.767
attribute	EWCT	ancillary_variables	String	QCflag VART_QC CSPD_QC DDNS_QC GDOP_QC
attribute	EWCT	colorBarMaximum	double	0.5
attribute	EWCT	colorBarMinimum	double	-0.5
attribute	EWCT	long_name	String	Surface eastward sea water velocity
attribute	EWCT	sdn_P02_urn	String	SDN:P02::RFVL
attribute	EWCT	sdn_parameter_name	String	Eastward velocity of water current in the water body
attribute	EWCT	sdn_parameter_urn	String	SDN:P01::LCEWZZ01
attribute	EWCT	sdn_uom_name	String	Metres per second
attribute	EWCT	sdn_uom_urn	String	SDN:P06::UVAA
attribute	EWCT	standard_name	String	surface_eastward_sea_water_velocity
attribute	EWCT	units	String	m s-1
attribute	EWCT	valid_max	double	10.0
attribute	EWCT	valid_min	double	-10.0
variable	NSCT		double	time, depth, latitude, longitude
attribute	NSCT	_FillValue	double	-32.767
attribute	NSCT	ancillary_variables	String	QCflag VART_QC CSPD_QC DDNS_QC GDOP_QC
attribute	NSCT	colorBarMaximum	double	0.5
attribute	NSCT	colorBarMinimum	double	-0.5
attribute	NSCT	long_name	String	Surface northward sea water velocity
attribute	NSCT	sdn_P02_urn	String	SDN:P02::RFVL
attribute	NSCT	sdn_parameter_name	String	Northward current velocity in the water body
attribute	NSCT	sdn_parameter_urn	String	SDN:P01::LCNSZZ01
attribute	NSCT	sdn_uom_name	String	Metres per second
attribute	NSCT	sdn_uom_urn	String	SDN:P06::UVAA
attribute	NSCT	standard_name	String	surface_northward_sea_water_velocity
attribute	NSCT	units	String	m s-1
attribute	NSCT	valid_max	double	10.0
attribute	NSCT	valid_min	double	-10.0
variable	EWCS		double	time, depth, latitude, longitude
attribute	EWCS	_FillValue	double	-32.767
attribute	EWCS	ancillary_variables	String	QCflag VART_QC
attribute	EWCS	colorBarMaximum	double	0.1
attribute	EWCS	colorBarMinimum	double	0.0
attribute	EWCS	long_name	String	Standard deviation of surface eastward sea water velocity
attribute	EWCS	sdn_P02_urn	String	SDN:P02::RFVL
attribute	EWCS	sdn_parameter_name	String	Eastward current velocity standard deviation in the water body
attribute	EWCS	sdn_parameter_urn	String	SDN:P01::SDEWZZZZ
attribute	EWCS	sdn_uom_name	String	Metres per second
attribute	EWCS	sdn_uom_urn	String	SDN:P06::UVAA
attribute	EWCS	units	String	m s-1
attribute	EWCS	valid_max	double	10.0
attribute	EWCS	valid_min	double	-10.0
variable	NSCS		double	time, depth, latitude, longitude
attribute	NSCS	_FillValue	double	-32.767
attribute	NSCS	ancillary_variables	String	QCflag VART_QC
attribute	NSCS	colorBarMaximum	double	0.1
attribute	NSCS	colorBarMinimum	double	0.0
attribute	NSCS	long_name	String	Standard deviation of surface northward sea water velocity
attribute	NSCS	sdn_P02_urn	String	SDN:P02::RFVL
attribute	NSCS	sdn_parameter_name	String	Northward current velocity standard deviation in the water body
attribute	NSCS	sdn_parameter_urn	String	SDN:P01::SDNSZZZZ
attribute	NSCS	sdn_uom_name	String	Metres per second
attribute	NSCS	sdn_uom_urn	String	SDN:P06::UVAA
attribute	NSCS	units	String	m s-1
attribute	NSCS	valid_max	double	10.0
attribute	NSCS	valid_min	double	-10.0
variable	CCOV		double	time, depth, latitude, longitude
attribute	CCOV	_FillValue	double	-2147.483647
attribute	CCOV	ancillary_variables	String	QCflag
attribute	CCOV	colorBarMaximum	double	50.0
attribute	CCOV	colorBarMinimum	double	0.0
attribute	CCOV	long_name	String	Covariance of surface sea water velocity
attribute	CCOV	sdn_uom_name	String	Square metres per second squared
attribute	CCOV	sdn_uom_urn	String	SDN:P06::SQM2
attribute	CCOV	units	String	m2 s-2
attribute	CCOV	valid_max	double	10.0
attribute	CCOV	valid_min	double	-10.0
variable	POSITION_QC		byte	time, depth, latitude, longitude
attribute	POSITION_QC	_FillValue	byte	-127
attribute	POSITION_QC	colorBarMaximum	double	10.0
attribute	POSITION_QC	colorBarMinimum	double	0.0
attribute	POSITION_QC	comment	String	Quality flagging for position coordinates.
attribute	POSITION_QC	conventions	String	EuroGOOS European HFR Node
attribute	POSITION_QC	flag_meanings	String	no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value
attribute	POSITION_QC	flag_values	byte	0, 1, 2, 3, 4, 5, 6, 7, 8, 9
attribute	POSITION_QC	long_name	String	Position quality flag
attribute	POSITION_QC	units	String	1
attribute	POSITION_QC	valid_max	byte	9
attribute	POSITION_QC	valid_min	byte	0

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.