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 data       graph  M    public HFR - NRT Surface Ocean Velocity by HFR-TirLig - 2016-present    ?   F   I   M   background (external link) RSS Subscribe
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HFR_TIRLIG_Total

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL acknowledgement String ISMAR HF Radar Network has been established within RITMARE, Jerico-Next and IMPACT projects. The network has been designed, implemented and managed through the efforts of ISMAR S.S. Lerici.
attribute NC_GLOBAL area String Mediterranean Sea
attribute NC_GLOBAL calibration_link String LIGW: carlo.mantovani@cnr.it; VIAR: carlo.mantovani@cnr.it; PFIN: carlo.mantovani@cnr.it
attribute NC_GLOBAL calibration_type String LIGW: APM; VIAR: APM; PFIN: APM
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL citation String These data were collected and made freely available by the Copernicus project and the programs that contribute to it. Data collected and processed by CNR-ISMAR within RITMARE, Jerico-Next and IMPACT projects.
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 contact String euhfrnode at azti.es
attribute NC_GLOBAL contributor_email String lorenzo.corgnati@sp.ismar.cnr.it; carlo.mantovani@cnr.it
attribute NC_GLOBAL contributor_name String Lorenzo Corgnati; Carlo Mantovani
attribute NC_GLOBAL contributor_role String metadata expert; HFR expert
attribute NC_GLOBAL Conventions String CF-1.6 Copernicus-InSituTAC-FormatManual-1.42 Copernicus-InSituTAC-SRD-1.5 Copernicus-InSituTAC-ParametersList-3.2.1, COARDS, ACDD-1.3
attribute NC_GLOBAL creator_name String EUHFRNODE
attribute NC_GLOBAL data_assembly_center String European HFR Node
attribute NC_GLOBAL data_assembly_center_email String euhfrnode at azti.es
attribute NC_GLOBAL data_character_set String utf8
attribute NC_GLOBAL data_language String eng
attribute NC_GLOBAL data_model_reference String http://www.marineinsitu.eu/wp-content/uploads/2018/02/HFR_Data_Model_Reference_Card_v1.pdf (external link)
attribute NC_GLOBAL data_type String HF radar total data
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 PI prior to any commercial use of data.
attribute NC_GLOBAL DoA_estimation_method String LIGW: Direction Finding; VIAR: Direction Finding; PFIN: Direction Finding
attribute NC_GLOBAL Easternmost_Easting double 10.49301
attribute NC_GLOBAL feature_type String surface
attribute NC_GLOBAL geospatial_lat_max double 44.42402
attribute NC_GLOBAL geospatial_lat_min double 43.25399
attribute NC_GLOBAL geospatial_lat_resolution double 0.018000461538461493
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 10.49301
attribute NC_GLOBAL geospatial_lon_min double 7.506987
attribute NC_GLOBAL geospatial_lon_resolution double 0.024883525000000004
attribute NC_GLOBAL geospatial_lon_units String degrees_east
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_name String latitude_longitude
attribute NC_GLOBAL grid_mapping_semi_major_axis double 6378137.0
attribute NC_GLOBAL grid_resolution String 2
attribute NC_GLOBAL infoUrl String http://www.ismar.cnr.it/ (external link)
attribute NC_GLOBAL institution String National Research Council - Institute of Marine Science
attribute NC_GLOBAL institution_edmo_code String 134
attribute NC_GLOBAL institution_references String http://www.ismar.cnr.it/ (external link)
attribute NC_GLOBAL keywords String currents, Earth Science, eastward, eastward_sea_water_velocity, euhfr, EWCS, EWCT, hf radar, HFR, hfr-tirlig-total, hfradar, latitude, lerici, longitude, marine, near real time, northward, northward_sea_water_velocity, Ocean Currents, ocean currents, oceans, QCflag, surface water
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String HF radar sea surface current velocity dataset by CNR-ISMAR 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 metadata_character_set String utf8
attribute NC_GLOBAL metadata_contact String lorenzo.corgnati at sp.ismar.cnr.it
attribute NC_GLOBAL metadata_language String eng
attribute NC_GLOBAL netcdf_format String netcdf4_classic
attribute NC_GLOBAL network String ISMAR_HFR_TirLig
attribute NC_GLOBAL Northernmost_Northing double 44.42402
attribute NC_GLOBAL owner String CNR ISMAR
attribute NC_GLOBAL platform_code String HFR-TirLig-Total
attribute NC_GLOBAL processing_level String 3B
attribute NC_GLOBAL project String RITMARE, Jerico-Next, IMPACT, SICOMAR Plus, EuroSea, Jerico-S3, SINAPSI
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:4806
attribute NC_GLOBAL references String http://marine.copernicus.eu http://www.marineinsitu.eu http://www.marineinsitu.eu/wp-content/uploads/2018/02/HFR_Data_Model_Reference_Card_v1.pdf (external link)
attribute NC_GLOBAL sensor String CODAR SeaSonde
attribute NC_GLOBAL site_code String HFR-TirLig
attribute NC_GLOBAL sourceUrl String https://thredds.hfrnode.eu:8443/thredds/dodsC/EUHFR_NRTcurrent_HFR-TirLig-Total_v2.2 (external link)
attribute NC_GLOBAL Southernmost_Northing double 43.25399
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String The data set consists of maps of total velocity of the surface current in the North-Western Tyrrhenian Sea and Ligurian Sea averaged over a time interval of 1 hour around the cardinal hour. Surface ocean velocities estimated by High Frequency (HF) Radar are representative of the 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 2023-05-30T14:00:00Z
attribute NC_GLOBAL time_coverage_resolution String PT1H
attribute NC_GLOBAL time_coverage_start String 2016-08-04T08:00:00Z
attribute NC_GLOBAL title String HFR - NRT Surface Ocean Velocity by HFR-TirLig - 2016-present
attribute NC_GLOBAL vocablaries String SDN_P01
attribute NC_GLOBAL Westernmost_Easting double 7.506987
dimension time   double nValues=58485, evenlySpaced=false, averageSpacing=1h 1m 19s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.4702976E9, 1.6854552E9
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   short nValues=1, onlyValue=0.0
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth actual_range short 0, 0
attribute depth axis String Z
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
dimension latitude   float nValues=66, evenlySpaced=true, averageSpacing=0.018000461538461493
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float 43.25399, 44.42402
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
attribute latitude valid_max float 90.0
attribute latitude valid_min float -90.0
dimension longitude   float nValues=121, evenlySpaced=true, averageSpacing=0.024883525000000004
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float 7.506987, 10.49301
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
attribute longitude valid_max float 180.0
attribute longitude valid_min float -180.0
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 coordsys String geographic
attribute EWCT data_mode String R
attribute EWCT ioos_category String Currents
attribute EWCT long_name String West-east current component
attribute EWCT sdn_P02_urn String SDN:P02::RFVL
attribute EWCT sdn_parameter_name String Eastward current velocity 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 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 coordsys String geographic
attribute NSCT data_mode String R
attribute NSCT ioos_category String Currents
attribute NSCT long_name String South-north current component
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 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 data_mode String R
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 data_mode String R
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 data_mode String R
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 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 data_mode String R
attribute GDOP long_name String Geometrical dilution of precision
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 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 OceanSITES quality flagging for position coordinates.
attribute POSITION_QC conventions String Copernicus Marine In Situ reference table 2
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
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 OceanSITES quality flagging for all QC tests.
attribute QCflag conventions String Copernicus Marine In Situ reference table 2
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 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 OceanSITES quality flagging for variance threshold QC test. Test not applicable to Direction Finding systems. The Temporal Derivative test is applied.Threshold set to 1.2 m/s.
attribute VART_QC conventions String Copernicus Marine In Situ reference table 2
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 OceanSITES quality flagging for GDOP threshold QC test. Threshold set to 2.
attribute GDOP_QC conventions String Copernicus Marine In Situ reference table 2
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 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 OceanSITES quality flagging for Data density threshold QC test. Threshold set to 3 radials.
attribute DDNS_QC conventions String Copernicus Marine In Situ reference table 2
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 OceanSITES quality flagging for Velocity threshold QC test. Threshold set to 1.2 m/s.
attribute CSPD_QC conventions String Copernicus Marine In Situ reference table 2
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

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.


 
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