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Dataset Title:	High Frequency (HF) Radar (Mean) Wave Data for San Juan Station
Institution:	CARICOOS   (Dataset ID: Mean_847a_dde4_02e4)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Subset | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum    or a List of Values	Maximum
time (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2023-05-01T23:00:00Z	2024-11-10T02:00:00Z
wave_height (wave model height in meters, m)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.52	3.87
wave_period (s)	!= =~ <= >= = < >		!= =~ <= >= = < >		3.66	14.95
wave_bearing (degrees)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	359.9
wind_bearing (degrees)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.2	359.3
maximum_observable_wave_height	!= =~ <= >= = < >		!= =~ <= >= = < >		0.05	0.88
cross_spectra_averaged_count	!= =~ <= >= = < >		!= =~ <= >= = < >		6.0	63.0
distance_from_origin	!= =~ <= >= = < >		!= =~ <= >= = < >		NaN
range_cell_result	!= =~ <= >= = < >		!= =~ <= >= = < >		3.0	10.0
LOND (Longitude, degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	0.0
LATD (Latitude, degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	0.0
doppler_points_used	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	52.0
wave_method	!= =~ <= >= = < >		!= =~ <= >= = < >		2.0
vector_flag	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0 1.0 16.0 48.0 64.0 80.0 208.0 1280.0 1281.0
num_valid_source_wave_vectors	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	63.0
standard_deviation_of_wave_heights	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	1.03
mwht_flag	!= =~ <= >= = < >		!= =~ <= >= = < >		1.0 4.0
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-66.1397833
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		18.4750667

 

Server-side Functions

distinct()

orderBy orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax (" time wave_height wave_period wave_bearing wind_bearing maximum_observable_wave_height cross_spectra_averaged_count distance_from_origin range_cell_result LOND LATD doppler_points_used wave_method vector_flag num_valid_source_wave_vectors standard_deviation_of_wave_heights mwht_flag longitude latitude time wave_height wave_period wave_bearing wind_bearing maximum_observable_wave_height cross_spectra_averaged_count distance_from_origin range_cell_result LOND LATD doppler_points_used wave_method vector_flag num_valid_source_wave_vectors standard_deviation_of_wave_heights mwht_flag longitude latitude time wave_height wave_period wave_bearing wind_bearing maximum_observable_wave_height cross_spectra_averaged_count distance_from_origin range_cell_result LOND LATD doppler_points_used wave_method vector_flag num_valid_source_wave_vectors standard_deviation_of_wave_heights mwht_flag longitude latitude time wave_height wave_period wave_bearing wind_bearing maximum_observable_wave_height cross_spectra_averaged_count distance_from_origin range_cell_result LOND LATD doppler_points_used wave_method vector_flag num_valid_source_wave_vectors standard_deviation_of_wave_heights mwht_flag longitude latitude time wave_height wave_period wave_bearing wind_bearing maximum_observable_wave_height cross_spectra_averaged_count distance_from_origin range_cell_result LOND LATD doppler_points_used wave_method vector_flag num_valid_source_wave_vectors standard_deviation_of_wave_heights mwht_flag longitude latitude ")

File type: (more info) .asc - View OPeNDAP-style ISO-8859-1 comma-separated text. .csv - Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). .csvp - Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. .csv0 - Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. .das - View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). .dds - View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). .dods - OPeNDAP clients use this to download the data in the DODS binary format. .esriCsv - Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). .fgdc - View the dataset's UTF-8 FGDC .xml metadata. .geoJson - Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. .graph - View a Make A Graph web page. .help - View a web page with a description of tabledap. .html - View an OPeNDAP-style HTML Data Access Form. .htmlTable - View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. .iso19115 - View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. .itx - Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. .json - View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). .jsonlCSV - View a UTF-8 JSON Lines CSV file (missing value = 'null'; times are ISO 8601 strings). .jsonlKVP - View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). .mat - Download a MATLAB binary file. .nc - Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. .ncHeader - View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. .ncCF - Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). .ncCFHeader - View the UTF-8 header (the metadata) for the .ncCF file. .ncCFMA - Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). .ncCFMAHeader - View the UTF-8 header (the metadata) for the .ncCFMA file. .nccsv - Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. .nccsvMetadata - View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. .ncoJson - Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. .odvTxt - Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). .subset - View an HTML form which uses faceted search to simplify picking subsets of the data. .tsv - Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). .tsvp - Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. .tsv0 - Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. .wav - Download a .wav audio file. All columns must be numeric and of the same type. .xhtml - View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. .kml - View a .kml file, suitable for Google Earth. .smallPdf - View a small .pdf image file with a graph or map. .pdf - View a standard, medium-sized .pdf image file with a graph or map. .largePdf - View a large .pdf image file with a graph or map. .smallPng - View a small .png image file with a graph or map. .png - View a standard, medium-sized .png image file with a graph or map. .largePng - View a large .png image file with a graph or map. .transparentPng - View a .png image file (just the data, without axes, landmask, or legend).

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.682982e+9, 1.731204e+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";
  }
  wave_height {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.52, 3.87;
    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 3.66, 14.95;
    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 0.2, 359.3;
    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 0.05, 0.88;
    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 6.0, 63.0;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
    String long_name "Cross Spectra Averaged Count";
  }
  distance_from_origin {
    Float64 _FillValue -999.0;
    String ioos_category "Unknown";
    String long_name "Distance From Origin";
  }
  range_cell_result {
    Float64 _FillValue -999.0;
    Float64 actual_range 3.0, 10.0;
    String ioos_category "Unknown";
    String long_name "Range Cell Result";
  }
  LOND {
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 0.0;
    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, 0.0;
    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, 1281.0;
    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, 63.0;
    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, 1.03;
    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 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 
"2024-11-21T21:46:03Z (local files)
2024-11-21T21:46:03Z http://dm3.caricoos.org:8002/erddap/tabledap/Mean_847a_dde4_02e4.html";
    String infoUrl "caricoos.org";
    String institution "CARICOOS";
    String keywords "averaged, caricoos, cell, coordinated, 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, fajardo, flag, frequency, height, heights, HF, hf radar, hfradar, high, LATD, latitude, 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, radar, 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, station, statistics, surface, surface waves, time, universal, 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 "2024 08 31  21 28 52";
    String ProcessingTool 
"\"WaveModelFilter\" 4.0.4
\"SpectraToWavesModel\" 11.10.0
\"WaveModelForFive\" 11.8.0
\"WaveModelArchiver\" 13.2.1
\"AnalyzeSpectra\" 12.0.0";
    String RangeCells "39";
    String Site "SBAY \"\"";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 18.4750667;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "distance_from_origin, wave_method, vector_flag, mwht_flag, longitude, latitude";
    String summary "Ocean Wave Heights.";
    String testOutOfDate "now-1day";
    String time_coverage_end "2024-11-10T02:00:00Z";
    String time_coverage_start "2023-05-01T23:00:00Z";
    String TimeCoverage "0.250 hours";
    String TimeMarks "start";
    String TimeStamp "2024 08 01  00 00 00";
    String TimeZone "\"UTC\" +0.000 0";
    String title "High Frequency (HF) Radar (Mean) 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 "3   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;
  }
}

 

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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 Data Access Protocol (DAP) and its selection constraints.

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.

• (easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
• (easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
• (not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

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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