ERDDAP > tabledap > Make A Graph

Dataset Title:	Backyard Buoys - PacIOOS - Marshall Islands: Majuro (Smart Mooring)
Institution:	MICS   (Dataset ID: backyardbuoys_majuro_smart)
Range:	longitude = 171.20166 to 171.20224°E, latitude = 7.150967 to 7.151667°N, depth = 1.0 to 1.0m, time = 2025-01-27T23:21:32Z to 2025-02-25T10:20:05Z
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Subset | Data Access Form | Files

 

Graph Type:  lines linesAndMarkers markers X Axis:  time latitude longitude depth sea_water_temperature Y Axis:  time latitude longitude depth sea_water_temperature Color:  time latitude longitude depth sea_water_temperature   Constraints Optional Constraint #1 Optional Constraint #2 location_id time buoy_id latitude longitude depth sea_water_temperature     != =~ <= >= = < >     != =~ <= >= = < >     location_id time buoy_id latitude longitude depth sea_water_temperature     != =~ <= >= = < >     != =~ <= >= = < >     location_id time buoy_id latitude longitude depth sea_water_temperature     != =~ <= >= = < >     != =~ <= >= = < >     location_id time buoy_id latitude longitude depth sea_water_temperature     != =~ <= >= = < >     != =~ <= >= = < >     location_id time buoy_id latitude longitude depth sea_water_temperature     != =~ <= >= = < >     != =~ <= >= = < >       Server-side Functions  distinct() orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" location_id time buoy_id latitude longitude depth sea_water_temperature location_id time buoy_id latitude longitude depth sea_water_temperature location_id time buoy_id latitude longitude depth sea_water_temperature location_id time buoy_id latitude longitude depth sea_water_temperature ")   Graph Settings Marker Type:  None Plus X Dot Square Filled Square Circle Filled Circle Up Triangle Filled Up Triangle Borderless Filled Square Borderless Filled Circle Borderless Filled Up Triangle  Size:  3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Color:  Color Bar:  BlackBlueWhite BlackGreenWhite BlackRedWhite BlackWhite BlueWhiteRed BlueWideWhiteRed LightRainbow Ocean OceanDepth Rainbow Rainbow2 Rainfall ReverseRainbow RedWhiteBlue RedWhiteBlue2 RedWideWhiteBlue Spectrum Topography TopographyDepth WhiteBlueBlack WhiteGreenBlack WhiteRedBlack WhiteBlack YellowRed KT_algae KT_amp KT_balance KT_curl KT_deep KT_delta KT_dense KT_gray KT_haline KT_ice KT_matter KT_oxy KT_phase KT_solar KT_speed KT_tempo KT_thermal KT_turbid EK80  Continuity:  Continuous Discrete  Scale:  Linear Log    Minimum:   Maximum:   N Sections:  2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Y Axis Minimum:   Maximum:    Ascending Descending Linear Log   Redraw the Graph (Please be patient. It may take a while to get the data.)   Optional: Then set the File Type: .asc .csv .csvp .csv0 .dataTable .das .dds .dods .esriCsv .fgdc .geoJson .graph .help .html .htmlTable .iso19115 .itx .json .jsonlCSV1 .jsonlCSV .jsonlKVP .mat .nc .ncHeader .ncCF .ncCFHeader .ncCFMA .ncCFMAHeader .nccsv .nccsvMetadata .ncoJson .odvTxt .parquet .parquetWMeta .subset .tsv .tsvp .tsv0 .wav .xhtml .kml .smallPdf .pdf .largePdf .smallPng .png .largePng .transparentPng (File Type information) and or view the URL: (Documentation / Bypass this form )

 

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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.
   

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  location_id {
    String cf_role "timeseries_id";
    String description "Backyard Buoys Location ID";
    String ioos_category "Identifier";
    String long_name "Location Id";
    String units "1";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.738020092e+9, 1.740478805e+9;
    String axis "T";
    String calendar "gregorian";
    String description "time of sampling";
    String gts_ingest "true";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String timezone "UTC";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  buoy_id {
    String description "Backyard Buoys Sofar Spotter Buoy ID";
    String gts_ingest "false";
    String ioos_category "Identifier";
    String long_name "Buoy Id";
    String units "1";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 7.150967, 7.151667;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude";
    String gts_ingest "true";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 171.201667, 171.202233;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude";
    String gts_ingest "true";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 actual_range 1.0, 1.0;
    String axis "Z";
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String description "Z-coordinate of observation in vertical distance below reference. Down is positive. (reference is sea surface)";
    String gts_ingest "true";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  sea_water_temperature {
    Float64 actual_range 27.88, 28.8;
    String ancillary_variables "sea_water_temperature_qc_agg sea_water_temperature_qc_gross_range_test sea_water_temperature_qc_rate_of_change_test sea_water_temperature_qc_spike_test sea_water_temperature_qc_flat_line_test";
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    String description "Sea Water Temperature";
    String gts_ingest "true";
    String ioos_category "Temperature";
    String long_name "Sea Water Temperature";
    String standard_name "sea_water_temperature";
    String units "degree_C";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "location_id, latitude, longitude";
    String citation "MICS. 2025. backyardbuoys_majuro. Backyard Buoys. https://backyardbuoys.org/erddap/Backyard Buoys - PacIOOS - Marshall Islands: Majuro (Smart Mooring)";
    String contributor_name "Backyard Buoys, NSF";
    String contributor_role "publisher, funder";
    String contributor_role_vocabulary "https://vocab.nerc.ac.uk/collection/G04/current/";
    String contributor_url "https://backyardbuoys.org/, https://new.nsf.gov/funding/initiatives/convergence-accelerator/";
    String Conventions "CF-1.10, ACDD-1.3, IOOS-1.2, COARDS";
    String creation_date "2025-07-17";
    String creator_country "United States";
    String creator_email "dua@atollconservation.org";
    String creator_institution "MICS";
    String creator_name "Marshall Islands Conservation Society and Ajeltake Community Development Association";
    String creator_sector "non_profit";
    String creator_type "institution";
    String creator_url "https://www.atollconservation.org/";
    String defaultDataQuery "time,latitude,longitude,sea_water_temperature,depth&time>=max(time)-30days";
    String defaultGraphQuery 
"time,sea_water_temperature,depth
        &time>=max(time)-30days
\t&.draw=markers
        &.vars=time|sea_water_temperature|depth
        &.yRange=||true
        &.marker=11|3";
    Float64 Easternmost_Easting 171.202233;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 7.151667;
    Float64 geospatial_lat_min 7.150967;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 171.202233;
    Float64 geospatial_lon_min 171.201667;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 1.0;
    Float64 geospatial_vertical_min 1.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String gts_ingest "true";
    String history 
"Making the files
2025-07-19T17:15:13Z (local files)
2025-07-19T17:15:13Z https://erddap.backyardbuoys.org/tabledap/backyardbuoys_majuro_smart.das";
    String infoUrl "https://backyardbuoys.org/";
    String institution "MICS";
    String ioos_regional_association "PacIOOS";
    String ioos_regional_association_url "https://www.pacioos.hawaii.edu/";
    String keywords "agg, aggregate, aggregate_quality_flag, association, backyardbuoys, buoy, buoy_id, change, data, density, direction, directional, earth, earth science &gt, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, Earth Science > Oceans > Ocean Waves > Significant Wave Height, Earth Science > Oceans > Ocean Waves > Wave Period, Earth Science > Oceans > Ocean Waves > Wave Spectra, Earth Science > Oceans > Ocean Waves > Wave Speed/Direction, flag, flat, flat_line_test_quality_flag, foundation, gross, gross_range_test_quality_flag, height, identifier, latitude, line, location_id, longitude, maximum, mean, source, spectra, spectral, speed, spike, spike_test_quality_flag, spread, station, statistics, surface, surface waves, systems, temperature, test, tests, time, variance, wave, wave period, wave spectra, wave speed/direction, waves, with";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "https://creativecommons.org/licenses/by-nc/4.0/deed.en";
    String location_id "majuro";
    String location_name "Majuro";
    String naming_authority "wmo";
    Float64 Northernmost_Northing 7.151667;
    String platform "buoy";
    String platform_description "Sofar Spotter Buoy, moored";
    String platform_vocabulary "https://mmisw.org/ont/ioos/platform";
    String program "Backyard Buoys";
    String program_url "https://backyardbuoys.org/";
    String project "Backyard Buoys";
    String publisher_country "United States";
    String publisher_email "setht1@uw.edu";
    String publisher_institution "Backyard Buoys";
    String publisher_name "Seth Travis";
    String publisher_type "institution";
    String publisher_url "https://backyardbuoys.org/";
    String quality_control_method "https://ioos.noaa.gov/ioos-in-action/wave-data/";
    String region "Marshall Islands";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 7.150967;
    String standard_name_vocabulary "CF Standard Name Table v85";
    String subsetVariables "buoy_id";
    String summary "Surface wave and water conditions, as collected as part of the Backyard Buoys program";
    String testOutOfDate "now-30days";
    String time_coverage_end "2025-02-25T10:20:05Z";
    String time_coverage_start "2025-01-27T23:21:32Z";
    String title "Backyard Buoys - PacIOOS - Marshall Islands: Majuro (Smart Mooring)";
    Float64 Westernmost_Easting 171.201667;
  }
}

 

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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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