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Global Attributes:	Conventions: ACDD-1.3,CF-1.7 id: 202502150000siohfruwlsltamonthusegc6km date_created: 2025-03-13T00:24:33Z source: surface ocean velocity field from hf-radar program: Integrated Ocean Observing System (IOOS) title: Near-Real Time Month Average Surface Ocean Velocity, U.S. East and Gulf Coast, 6km Resolution summary: Surface ocean velocities estimated from 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 U.S. East and Gulf Coast to produce hourly near real-time surface current maps. The month average is computed from all available hourly near real-time surface current maps for the given month. instrument: Earth Remote Sensing Instruments, Active Remote Sensing, Profilers/Sounders, Radar Sounders, Doppler RADAR keywords: Earth Science, Oceans, Sea Surface, Coastal Processes, Marine Environment Monitoring, Ocean Circulation, Ocean Currents, Wind-Driven Circulation, Atlantic Ocean, North Atlantic Ocean, Gulf of Mexico geospatial_lat_min: 21.73596 geospatial_lat_max: 46.49442 geospatial_lon_min: -97.88385 geospatial_lon_max: -57.23121 processing_level: Near real-time dataset with automated data acquisition and processing quality control history: 2025-03-13T00:24:33Z hfrnet ltaSaveNetcdf: Writing values to file references: Terrill, E. et al., 2006. Data Management and Real-time Distribution in the HF-Radar National Network. Proceedings of the MTS/IEEE Oceans 2006 Conference, Boston MA, September 2006. institution: Coastal Observing Research and Development Center, Scripps Institution of Oceanography creator_type: group creator_name: HFRNet Administrators creator_email: hfrnet.administrators@sio.ucsd.edu creator_url: http://cordc.ucsd.edu/projects/mapping/ naming_authority: edu.ucsd.cordc standard_name_vocabulary: CF Standard Name Table, Version 51 keywords_vocabulary: Global Change Master Directory (GCMD) Keywords, Version 14.1 instrument_vocabulary: Global Change Master Directory (GCMD) Keywords, Version 8.6 format_version: 1.1.00 product_version: 2.0.00

Variables:	lat: Array of 32 bit Reals [lat = 0..459] lat: standard_name: latitude units: degrees_north _ChunkSizes: 460
	lon: Array of 32 bit Reals [lon = 0..700] lon: standard_name: longitude units: degrees_east _ChunkSizes: 701
	depth: 32 bit Real depth standard_name: depth units: m bounds: depth_bnds comment: Nominal depth (and corresponding bounds) based on contributing radars
	depth_bnds: Array of 32 bit Reals [nv = 0..1] nv: _ChunkSizes: 2
	wgs84: 8 bit Byte wgs84 _Unsigned: false grid_mapping_name: latitude_longitude longitude_of_prime_meridian: 0.0 semi_major_axis: 6378137.0 inverse_flattening: 298.257223563
	processing_parameters: 8 bit Byte processing_parameters _Unsigned: false long_name: Methods and parameters used to compute average current combine_method_name: Unweighted Least Squares combine_method_description: Method used to compute hourly total solutions from radial velocities min_temporal_coverage: 21 min_temporal_coverage_description: Minimum number of days required to compute monthly statistics max_hdop: 1.25 max_hdop_description: Maximum allowed hourly vector HDOP
	time: Array of 32 bit Integers [time = 0..156] time: standard_name: time units: seconds since 1970-01-01 calendar: gregorian bounds: time_bnds _ChunkSizes: 1024
	time_bnds: Array of 32 bit Integers [time = 0..156][nv = 0..1] time: nv: _ChunkSizes: 1, 2
	u_mean: Grid time: lat: lon: standard_name: surface_eastward_sea_water_velocity long_name: mean eastward surface velocity units: m s-1 _FillValue: -32767 scale_factor: 0.01 grid_mapping: wgs84 coordinates: depth cell_methods: depth: mean time: mean (interval: 1 hour comment: 1 hour average) ancillary_variables: n_obs _ChunkSizes: 1, 460, 701
	v_mean: Grid time: lat: lon: standard_name: surface_northward_sea_water_velocity long_name: mean northward surface velocity units: m s-1 _FillValue: -32767 scale_factor: 0.01 grid_mapping: wgs84 coordinates: depth cell_methods: depth: mean time: mean (interval: 1 hour comment: 1 hour average) ancillary_variables: n_obs _ChunkSizes: 1, 460, 701
	u_var: Grid time: lat: lon: standard_name: surface_eastward_sea_water_velocity long_name: eastward surface velocity variance units: m2 s-2 _FillValue: -32767 scale_factor: 1.0E-4 grid_mapping: wgs84 coordinates: depth cell_methods: depth: mean time: variance (interval: 1 hour comment: 1 hour average) ancillary_variables: n_obs _ChunkSizes: 1, 460, 701
	v_var: Grid time: lat: lon: standard_name: surface_northward_sea_water_velocity long_name: northward surface velocity variance units: m2 s-2 _FillValue: -32767 scale_factor: 1.0E-4 grid_mapping: wgs84 coordinates: depth cell_methods: depth: mean time: variance (interval: 1 hour comment: 1 hour average) ancillary_variables: n_obs _ChunkSizes: 1, 460, 701
	u_min: Grid time: lat: lon: standard_name: surface_eastward_sea_water_velocity long_name: minimum eastward surface velocity units: m s-1 _FillValue: -32767 scale_factor: 0.01 grid_mapping: wgs84 coordinates: depth cell_methods: depth: mean time: minimum (interval: 1 hour comment: 1 hour average) ancillary_variables: n_obs _ChunkSizes: 1, 460, 701
	v_min: Grid time: lat: lon: standard_name: surface_northward_sea_water_velocity long_name: minimum northward surface velocity units: m s-1 _FillValue: -32767 scale_factor: 0.01 grid_mapping: wgs84 coordinates: depth cell_methods: depth: mean time: minimum (interval: 1 hour comment: 1 hour average) ancillary_variables: n_obs _ChunkSizes: 1, 460, 701
	u_max: Grid time: lat: lon: standard_name: surface_eastward_sea_water_velocity long_name: maximum eastward surface velocity units: m s-1 _FillValue: -32767 scale_factor: 0.01 grid_mapping: wgs84 coordinates: depth cell_methods: depth: mean time: maximum (interval: 1 hour comment: 1 hour average) ancillary_variables: n_obs _ChunkSizes: 1, 460, 701
	v_max: Grid time: lat: lon: standard_name: surface_northward_sea_water_velocity long_name: maximum northward surface velocity units: m s-1 _FillValue: -32767 scale_factor: 0.01 grid_mapping: wgs84 coordinates: depth cell_methods: depth: mean time: maximum (interval: 1 hour comment: 1 hour average) ancillary_variables: n_obs _ChunkSizes: 1, 460, 701
	n_obs: Grid time: lat: lon: standard_name: number_of_observations units: count _FillValue: -32767 grid_mapping: wgs84 coordinates: depth cell_methods: time: sum (interval: 1 hour) _ChunkSizes: 1, 460, 701

For questions or comments about this dataset, contact the administrator of this server [Tom Cook] at: tmcook@ucsd.edu

For questions or comments about the OPeNDAP service bundled with the TDS, email THREDDS support at: support-thredds@unidata.ucar.edu

DDS:

Dataset {
    Float32 lat[lat = 460];
    Float32 lon[lon = 701];
    Float32 depth;
    Float32 depth_bnds[nv = 2];
    Byte wgs84;
    Byte processing_parameters;
    Int32 time[time = 157];
    Int32 time_bnds[time = 157][nv = 2];
    Grid {
     ARRAY:
        Int16 u_mean[time = 157][lat = 460][lon = 701];
     MAPS:
        Int32 time[time = 157];
        Float32 lat[lat = 460];
        Float32 lon[lon = 701];
    } u_mean;
    Grid {
     ARRAY:
        Int16 v_mean[time = 157][lat = 460][lon = 701];
     MAPS:
        Int32 time[time = 157];
        Float32 lat[lat = 460];
        Float32 lon[lon = 701];
    } v_mean;
    Grid {
     ARRAY:
        Int16 u_var[time = 157][lat = 460][lon = 701];
     MAPS:
        Int32 time[time = 157];
        Float32 lat[lat = 460];
        Float32 lon[lon = 701];
    } u_var;
    Grid {
     ARRAY:
        Int16 v_var[time = 157][lat = 460][lon = 701];
     MAPS:
        Int32 time[time = 157];
        Float32 lat[lat = 460];
        Float32 lon[lon = 701];
    } v_var;
    Grid {
     ARRAY:
        Int16 u_min[time = 157][lat = 460][lon = 701];
     MAPS:
        Int32 time[time = 157];
        Float32 lat[lat = 460];
        Float32 lon[lon = 701];
    } u_min;
    Grid {
     ARRAY:
        Int16 v_min[time = 157][lat = 460][lon = 701];
     MAPS:
        Int32 time[time = 157];
        Float32 lat[lat = 460];
        Float32 lon[lon = 701];
    } v_min;
    Grid {
     ARRAY:
        Int16 u_max[time = 157][lat = 460][lon = 701];
     MAPS:
        Int32 time[time = 157];
        Float32 lat[lat = 460];
        Float32 lon[lon = 701];
    } u_max;
    Grid {
     ARRAY:
        Int16 v_max[time = 157][lat = 460][lon = 701];
     MAPS:
        Int32 time[time = 157];
        Float32 lat[lat = 460];
        Float32 lon[lon = 701];
    } v_max;
    Grid {
     ARRAY:
        Int16 n_obs[time = 157][lat = 460][lon = 701];
     MAPS:
        Int32 time[time = 157];
        Float32 lat[lat = 460];
        Float32 lon[lon = 701];
    } n_obs;
} HFR/USEGC/6km/LTA/USEGC-month-LTA-6km.nc;

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