OPeNDAP Data Access Form for 200803061600_HFRadar_USEGC_6km_rtv_SIO.ncml
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dataset: 200803061600_HFRadar_USEGC_6km_rtv_SIO.ncml




  • NC_GLOBAL
    • netcdf_library_version: netcdf library version 3.6.1 of Feb 3 2008 23:15:25 $
    • format_version: HFRNet_1.0.0b2
    • product_version: HFRNet_1.1.01
    • Conventions: CF-1.1
    • title: Near-Real Time Surface Ocean Velocity
    • institution: Scripps Institution of Oceanography
    • source: Surface Ocean HF-Radar
    • history: 12-Mar-2008 22:26:19: NetCDF file created
    • 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.
    • creator_name: Mark Otero
    • creator_email: motero@mpl.ucsd.edu
    • creator_url: http://cordc.ucsd.edu/projects/mapping/
    • summary: Surface ocean velocities estimated from HF-Radar are representitive of the upper 0.3 - 2.5 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 HF-Radar Network and processed to create near-real time velocities (RTVs)
    • geospatial_lat_min: 21.7359600
    • geospatial_lat_max: 46.4944191
    • geospatial_lon_min: -97.8838501
    • geospatial_lon_max: -57.2312088
    • grid_resolution: 6km
    • grid_projection: equidistant cylindrical
    • regional_description: Unites States, East and Gulf Coast
  • DODS_EXTRA
    • Unlimited_Dimension: time
  • WcsMetadata:


  • time[ time= 0 ..0] (Type is Int32)
    • attributes
      • standard_name: time
      • units: seconds since 1970-01-01
      • calendar: gregorian
    lat[ lat= 0 ..459] (Type is Float32)
    • attributes
      • standard_name: latitude
      • units: degrees_north
    lon[ lon= 0 ..700] (Type is Float32)
    • attributes
      • standard_name: longitude
      • units: degrees_east
    u[ time= 0 ..0] [ lat= 0 ..459] [ lon= 0 ..700] (Grid of Int16 values)
    • attributes
      • standard_name: surface_eastward_sea_water_velocity
      • units: m s-1
      • _FillValue: -32768
      • scale_factor: 0.00999999978
      • ancillary_variables: DOPx
    v[ time= 0 ..0] [ lat= 0 ..459] [ lon= 0 ..700] (Grid of Int16 values)
    • attributes
      • standard_name: surface_northward_sea_water_velocity
      • units: m s-1
      • _FillValue: -32768
      • scale_factor: 0.00999999978
      • ancillary_variables: DOPy
    DOPx[ time= 0 ..0] [ lat= 0 ..459] [ lon= 0 ..700] (Grid of Int16 values)
    • attributes
      • long_name: longitudinal dilution of precision
      • comment: The longitudinal dilution of precision (DOPx) represents the contribution of the radars' configuration geometry to uncertainty in the eastward velocity estimate (u). DOPx is a direct multiplier of the standard error in obtaining the standard deviation for the eastward velocity estimate from the least squares best fit. DOPx and DOPy are commonly used to obtain the geometric dilution of precision (GDOP = sqrt(DOPx^2 + DOPy^2)), a useful metric for filtering errant velocities due to poor geometry.
      • _FillValue: -32768
      • scale_factor: 0.00999999978
    DOPy[ time= 0 ..0] [ lat= 0 ..459] [ lon= 0 ..700] (Grid of Int16 values)
    • attributes
      • long_name: latitudinal dilution of precision
      • comment: The latitudinal dilution of precision (DOPy) represents the contribution of the radars' configuration geometry to uncertainty in the northward velocity estimate (v). DOPy is a direct multiplier of the standard error in obtaining the standard deviation for the northward velocity estimate from the least squares best fit. DOPx and DOPy are commonly used to obtain the geometric dilution of precision (GDOP = sqrt(DOPx^2 + DOPy^2)), a useful metric for filtering errant velocities due to poor geometry.
      • _FillValue: -32768
      • scale_factor: 0.00999999978
    site_lat[ nSites= 0 ..26] (Type is Float32)
    • attributes
      • long_name: Contributing radar site latitudes
      • standard_name: latitude
      • units: degrees_north
    site_lon[ nSites= 0 ..26] (Type is Float32)
    • attributes
      • long_name: Contributing radar site longitudes
      • standard_name: longitude
      • units: degrees_east
    site_code[ nSites= 0 ..26] (Type is String)
    • attributes
      • long_name: Contributing radar site code
      • string_length: 25
    site_netCode[ nSites= 0 ..26] (Type is String)
    • attributes
      • long_name: Contributing radar site network affiliation code
      • string_length: 25
    procParams[ nProcParam= 0 ..6] (Type is Float32)
    • attributes
      • long_name: RTV processing parameters
      • comment: 01) Maximum GDOP threshold 02) Maximum speed threshold (cm s-1) 03) Minimum number of sites required 04) Minimum number of radials required 05) Maximum angular gap to interpolate radial data over (degrees, 0 = no interpolation) 06) Maximum gap in range to interpolate radial data over (range-resolution, 0 = no interpolation) 07) Spatial search radius for radial solutions (km)

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