Metocean: Historical collections

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Dataset Title:	Green Canyon Block 33
Institution:	Fugro, Inc (Dataset ID: GC33D15MCPRI)
Range:	longitude = -90.28267 to -90.28267°E, latitude = 27.946167 to 27.946167°N, depth = 15.0 to 15.0m, time = 1996-03-07T17:40:00Z to 1997-07-05T23:40:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| 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:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 8.262204e+8, 8.68146e+8;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "UTC Sample Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  ensemble_number {
    String _Unsigned "false";
    Byte actual_range -128, 127;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
    String long_name "Ensemble Number";
  }
  direction {
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.0, 360.0;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String comment "0-360 degrees, 360 is due north, 0 means no measurable current.";
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument";
    String ioos_category "Currents";
    String long_name "current direction towards";
    String platform "platform";
    String standard_name "direction_of_sea_water_velocity";
    String units "degree";
    Float64 valid_max 360.0;
    Float64 valid_min 0.0;
  }
  speed {
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.0, 0.35600000000000004;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument";
    String ioos_category "Currents";
    String long_name "ocean current speed";
    String platform "platform";
    String standard_name "sea_water_speed";
    String units "m/s";
    Float64 valid_max 400.0;
    Float64 valid_min 0.0;
  }
  eastings {
    Float64 _FillValue -9999.0;
    Float64 actual_range -0.349, 0.16399999999999998;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Currents";
    String long_name "Eastward Current Velocity";
    String name "eastings";
    String platform "platform";
    String standard_name "eastward_sea_water_velocity";
    String units "m s-1";
  }
  northings {
    Float64 _FillValue -9999.0;
    Float64 actual_range -0.16, 0.20199999999999999;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Currents";
    String long_name "Northward Current Velocity";
    String name "northings";
    String platform "platform";
    String standard_name "northward_sea_water_velocity";
    String units "m s-1";
  }
  temperature {
    Float64 _FillValue -9999.0;
    Float64 actual_range 6.2, 8.94;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Temperature";
    String long_name "Sea Water Temperature";
    String name "temperature";
    String platform "platform";
    String standard_name "sea_water_temperature";
    String units "degree_C";
  }
  salinity {
    Float64 _FillValue -9999.0;
    Float64 actual_range 34.61, 35.24;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Salinity";
    String long_name "Sea Water Salinity";
    String name "salinity";
    String platform "platform";
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue -9999.0;
    Float64 actual_range 15.0, 15.0;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String coverage_content_type "physicalMeasurement";
    Float64 fill_value -9999.0;
    String instrument "instrument";
    String ioos_category "Location";
    String long_name "distance from the sea surface";
    String name "depth";
    String platform "platform";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue -9999.0;
    Float64 actual_range 27.946166666666667, 27.946166666666667;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String comment "Latitude";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue -9999.0;
    Float64 actual_range -90.28266666666667, -90.28266666666667;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String comment "Longitude";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 360.0;
    Float64 valid_min -180.0;
  }
  platform {
    String ioos_category "Unknown";
    String long_name "Platform";
  }
  instrument {
    String ioos_category "Unknown";
    String long_name "Instrument";
    String serial_number "05721/11261";
  }
  crs {
    String epsg_code "EPSG:4326";
    String grid_mapping_name "latitude_longitude";
    Float64 inverse_flattening 298.257223563;
    String ioos_category "Unknown";
    String long_name "CRS";
    Float64 longitude_of_prime_meridian 0.0;
    Float64 semi_major_axis 6378137.0;
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=1|netcdflibversion=4.4.1.1|hdf5libversion=1.8.19";
    String cdm_data_type "Point";
    String Contract_Number "C16012";
    String contributor_email "devops@rpsgroup.com";
    String contributor_name "RPS";
    String contributor_role "editor";
    String contributor_role_vocabulary "https://vocab.nerc.ac.uk/collection/G04/current/";
    String contributor_url "https://www.rpsgroup.com/";
    String Conventions "CF-1.6, ACDD-1.3, IOOS-1.2, COARDS";
    String creator_address "6100 Hillcroft Avenue";
    String creator_city "Houston";
    String creator_country "USA";
    String creator_email "metoceansupport@fugro.com";
    String creator_institution "Fugro Inc";
    String creator_name "Rosemary Smith";
    String creator_phone "713-369-5600";
    String creator_postalcode "77081";
    String creator_sector "industry";
    String creator_state "Texas";
    String creator_type "institution";
    String creator_url "https://www.fugro.com/";
    String date_created "2020-01-09";
    String date_issued "2020-01-09";
    String date_metadata_modified "2020-01-09T13:48:36Z";
    String date_modified "2020-01-09";
    Float64 Easternmost_Easting -90.28266666666667;
    String featureType "Point";
    String geospatial_bounds "POINT (27.946166666666667 -90.28266666666667)";
    String geospatial_bounds_crs "EPSG:4326";
    String geospatial_bounds_vertical_crs "EPSG:5703";
    Float64 geospatial_lat_max 27.946166666666667;
    Float64 geospatial_lat_min 27.946166666666667;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -90.28266666666667;
    Float64 geospatial_lon_min -90.28266666666667;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 15.0;
    Float64 geospatial_vertical_min 15.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"Generated by convert_to_nc.py version 0.0.1
2024-05-17T10:33:23Z (local files)
2024-05-17T10:33:23Z https://gcoos5.geos.tamu.edu/tabledap/GC33D15MCPRI.das";
    String id "GC33D15MCPRI";
    String infoUrl "https://www.fugro.com/";
    String institution "Fugro, Inc";
    String instrument "Aanderaa RCM 7 / Aanderaa RCM 8";
    String instrument_vocabulary "GCMD Earth Science Keywords. Version 5.3.3";
    String keywords "block, canyon, circulation, crs, current, currents, data, density, depth, direction, direction_of_sea_water_velocity, distance, Earth Science > Oceans > Ocean Circulation > Ocean Currents, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Salinity, eastings, eastward, eastward_sea_water_velocity, ensemble, ensemble_number, fugro, green, inc, instrument, latitude, longitude, northings, northward, northward_sea_water_velocity, number, ocean, oceans, platform, practical, salinity, sample, sea, sea_water_practical_salinity, sea_water_speed, sea_water_temperature, seawater, speed, statistics, surface, temperature, time, towards, velocity, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "These data may be redistributed and used without restriction.";
    String Location "Green Canyon Block 33";
    String Measurement_Depth "589m";
    String naming_authority "edu.tamucc.gulfhub";
    Float64 Northernmost_Northing 27.946166666666667;
    String Position "27 56.77'N, 90 16.96'W";
    String processing_level "QA'ed and checked by Oceanographer";
    String program "GUMBO Project";
    String project "GUMBO Project";
    String publisher_address "6300 Ocean Drive, Unit 5869";
    String publisher_city "Corpus Christi";
    String publisher_country "USA";
    String publisher_email "info@gcoos.org";
    String publisher_institution "Harte Research Institute, Texas A&M University Corpus Christi";
    String publisher_name "Gulf of Mexico Coastal Ocean Observing System (GCOOS)";
    String publisher_phone "(361) 825 3454";
    String publisher_postalcode "78412";
    String publisher_state "Texas";
    String publisher_type "group";
    String publisher_url "gcoos.org";
    String sea_name "Gulf of Mexico";
    String source "Single point current meter";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 27.946166666666667;
    String standard_name_vocabulary "CF Standard Name Table v67";
    String subsetVariables "depth, latitude, longitude, platform, instrument, crs";
    String summary 
"Program of current, temperature and salinity observations at 5m and 15m above the sea bed, 5 moorings, March 1996 to July 1997
";
    String time_coverage_duration "P1Y3M28DT6H0M0S";
    String time_coverage_end "1997-07-05T23:40:00Z";
    String time_coverage_resolution "PT30M";
    String time_coverage_start "1996-03-07T17:40:00Z";
    String Time_Zone "UTC";
    String title "Green Canyon Block 33";
    String Water_Depth "604";
    Float64 Westernmost_Easting -90.28266666666667;
  }
}

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.

(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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