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Dataset Title:  High Frequency (HF) Radar (Radial) Wave Data for San Juan Station Subscribe RSS
Institution:  CARICOOS   (Dataset ID: Radial_d47f_bb7f_4559)
Range: longitude = -66.139786 to -66.139786°E, latitude = 18.475067 to 18.475067°N, time = 2023-05-01T23:00:00Z to 2024-06-21T21:00:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
 
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.682982e+9, 1.7190036e+9;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "Universal Time Coordinated (UTC) Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  distance_from_origin {
    Float64 _FillValue -999.0;
    Float64 actual_range 6.04059, 30.20293;
    String ioos_category "Unknown";
    String long_name "Distance From Origin";
  }
  wave_height {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.39, 5.02;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String comment "wave model height in meters for every one of three waves";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Surface Waves";
    String long_name "wave model height in meters";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
    Float64 valid_max 100.0;
    Float64 valid_min 0.0;
  }
  wave_period {
    Float64 _FillValue -999.0;
    Float64 actual_range 3.0, 16.0;
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String comment "wave spectra period in seconds";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Surface Waves";
    String long_name "wave spectra period in seconds";
    String standard_name "sea_surface_wave_mean_period";
    String units "s";
    Float64 valid_max 100.0;
    Float64 valid_min 0.0;
  }
  wave_bearing {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 359.9;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String comment "wave from direction in degrees";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Surface Waves";
    String long_name "wave from direction in degrees";
    String standard_name "sea_surface_wave_from_direction";
    String units "degrees";
    Float64 valid_max 360.0;
    Float64 valid_min 0.0;
  }
  wind_bearing {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 359.8;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String comment "wind from direction in degrees";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Surface Waves";
    String long_name "wind from direction in degrees";
    String standard_name "sea_surface_wind_wave_from_direction";
    String units "degrees";
    Float64 valid_max 360.0;
    Float64 valid_min 0.0;
  }
  maximum_observable_wave_height {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.04, 2.12;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Sea Surface Wave Significant Height";
    String standard_name "sea_surface_wave_significant_height";
  }
  cross_spectra_averaged_count {
    Float64 _FillValue -999.0;
    Float64 actual_range 1.0, 7.0;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
    String long_name "Cross Spectra Averaged Count";
  }
  range_cell_result {
    Float64 _FillValue -999.0;
    Float64 actual_range 2.0, 10.0;
    String ioos_category "Unknown";
    String long_name "Range Cell Result";
  }
  LOND {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 0.0094678;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  LATD {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 0.2183089;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  doppler_points_used {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 52.0;
    String ioos_category "Unknown";
    String long_name "Doppler Points Used";
  }
  wave_method {
    Float64 _FillValue -999.0;
    Float64 actual_range 2.0, 2.0;
    String ioos_category "Surface Waves";
    String long_name "Wave Method";
  }
  vector_flag {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 1296.0;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Quality";
    String long_name "Vector Flag";
  }
  num_valid_source_wave_vectors {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 7.0;
    String ioos_category "Surface Waves";
    String long_name "Num Valid Source Wave Vectors";
  }
  standard_deviation_of_wave_heights {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 2.39;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
    String long_name "Standard Deviation Of Wave Heights";
  }
  mwht_flag {
    Float64 _FillValue -999.0;
    Float64 actual_range 1.0, 4.0;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Quality";
    String long_name "Mwht Flag";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue -999.0;
    Float64 actual_range -66.1397833, -66.1397833;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String short_name "lon";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 180.0;
    Float64 valid_min -180.0;
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue -999.0;
    Float64 actual_range 18.4750667, 18.4750667;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String short_name "lat";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
 }
  NC_GLOBAL {
    String AntennaBearing "44.0";
    String BraggHasSecondOrder "1";
    String BraggSmoothingPoints "2";
    String cdm_data_type "Other";
    String CoastlineSector "280.0 85.0   Start CW to Stop in Deg NCW";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String CTF "1.00";
    String CurrentVelocityLimit "150";
    String Distance "24.16235 km";
    String DopplerCells "512";
    Float64 Easternmost_Easting -66.1397833;
    String FileType "WVMD WVM9 \"Wave History\"";
    Float64 geospatial_lat_max 18.4750667;
    Float64 geospatial_lat_min 18.4750667;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -66.1397833;
    Float64 geospatial_lon_min -66.1397833;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-06-22T13:20:33Z (local files)
2024-06-22T13:20:33Z http://dm3.caricoos.org:8002/tabledap/Radial_d47f_bb7f_4559.das";
    String infoUrl "caricoos.org";
    String institution "CARICOOS";
    String keywords "averaged, cell, count, cross, cross_spectra_averaged_count, data, degrees, deviation, direction, distance, distance_from_origin, doppler, doppler_points_used, earth, Earth Science > Oceans > Ocean Waves > Significant Wave Height, Earth Science > Oceans > Ocean Waves > Wave Speed/Direction, flag, height, heights, LATD, latitude, local, LOND, longitude, maximum_observable_wave_height, mean, meters, method, model, mwht, mwht_flag, num, num_valid_source_wave_vectors, ocean, oceans, origin, period, points, quality, range, range_cell_result, result, science, sea, sea_surface_wave_from_direction, sea_surface_wave_mean_period, sea_surface_wave_significant_height, sea_surface_wind_wave_from_direction, seconds, significant, source, spectra, speed, standard, standard_deviation_of_wave_heights, statistics, surface, surface waves, time, used, valid, vector, vector_flag, vectors, wave, wave_bearing, wave_height, wave_method, wave_period, waves, wind, wind_bearing";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String Manufacturer "CODAR Ocean Sensors. SeaSonde";
    String MaximumWavePeriod "18.0";
    Float64 Northernmost_Northing 18.4750667;
    String Origin "18.4750667  -66.1397833";
    String PatternUUID "PatternUUID";
    String ProcessedTimeStamp "2023 10 31  21 28 55";
    String ProcessingTool 
"\"WaveModelFilter\" 4.0.4
\"SpectraToWavesModel\" 11.10.0
\"WaveModelForFive\" 11.8.0
\"WaveModelArchiver\" 13.2.1
\"AnalyzeSpectra\" 12.0.0";
    String RangeCell "8";
    String RangeCells "39";
    String RangeResolutionKMeters "3.02029 km";
    String Site "SBAY \"\"";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 18.4750667;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "wave_method, longitude, latitude";
    String summary "Ocean Wave Heights.";
    String time_coverage_end "2024-06-21T21:00:00Z";
    String time_coverage_start "2023-05-01T23:00:00Z";
    String TimeCoverage "0.250 hours";
    String TimeMarks "start";
    String TimeStamp "2023 10 01  00 00 00";
    String TimeZone "\"UTC\" +0.000 0";
    String title "High Frequency (HF) Radar (Radial) Wave Data for San Juan Station";
    String TransmitBandwidthKHz "-49.629688";
    String TransmitCenterFreqMHz "13.500000";
    String TransmitSweepRateHz "2.000000";
    String WaveBearingLimits "275.0 85.0   Start CW to Stop in Deg NCW";
    String WaveBraggNoiseThreshold "3.2";
    String WaveBraggPeakDropOff "100.0";
    String WaveBraggPeakNull "10.0";
    String WaveHeightLimit "20.0";
    String WaveMaximumWaveHeight "1.0";
    String WaveMaximumWavePeriodChange "7.00";
    String WaveMergeMethod "1   0 None, 1 Average, 2 Median, 3 Outlier";
    String WaveMinDopplerPoints "10";
    String WaveMinVectors "1";
    String WavePeriodSetLimit "10.0";
    String WaveReductionMethod "1   0 None, 1=Temporal, 2=Spatial, 3=Both";
    String WaveSaturationRatio "0.80";
    String WaveSecondOrderMethod "1    0/1 OnShore, 2 OffShore";
    String WaveSplitBraggRatio "31.60";
    String WaveUseInnerBragg "0   0 No, 1 Yes";
    Float64 Westernmost_Easting -66.1397833;
  }
}

 

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its selection constraints (external link).

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.


 
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