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Dataset Title:	Environmental Monitors on Lobster Traps. 1880-01-16 to 2017-05-16
Institution:	NOAA Northeast Fisheries Science Center (Dataset ID: eMOLT_historical)
Range:	longitude = -73.05 to -60.21°E, latitude = 39.55 to 46.36°N, depth = -3.7 to 405.3m, time = 1880-01-16T06:23:00Z to 2017-05-16T15:12:00Z
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 {
  platform_code {
    String long_name "platform_code";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range -2.83882182e+9, 1.49494752e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String source_name "time (UTC)";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 39.55, 46.36;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "latitude (degrees_north)";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -73.05, -60.21;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "longitude (degrees_east)";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range -3.7, 405.3;
    String axis "Z";
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String source_name "depth (m)";
    String standard_name "depth";
    String units "m";
  }
  sea_water_temperature {
    Float32 actual_range -25.8, 27.2;
    String long_name "Sea Water Temperature";
    String units "°C";
  }
 }
  NC_GLOBAL {
    String acknowledgment "NOAA Northeast Consortium and Northeast Cooperative Research";
    String cdm_data_type "Point";
    String citation "Manning, James (2018). Water Temperature collected from Commercial Lobster Traps in Gulf of Maine and Southern New England Shelf from 1880-01-16 to 2017-05-16 (NCEI Accession 0162412). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0162412";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String DOI "https://doi.org/10.1080/1755876X.2009.11020106";
    Float64 Easternmost_Easting -60.21;
    String ERDDAP_metadata_link "https://comet.nefsc.noaa.gov/erddap/info/eMOLT/index.html";
    String featureType "Point";
    Float64 geospatial_lat_max 46.36;
    Float64 geospatial_lat_min 39.55;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -60.21;
    Float64 geospatial_lon_min -73.05;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 405.3;
    Float64 geospatial_vertical_min -3.7;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2025-10-23T01:26:35Z (local files)
2025-10-23T01:26:35Z http://erddap.emodnet-physics.eu/tabledap/eMOLT_historical.das";
    String infoUrl "http://emolt.org/";
    String institution "NOAA Northeast Fisheries Science Center";
    String keywords "sea_water_temperature, temperature";
    String license "CC-BY";
    String NCEI_Accession "0162412";
    Float64 Northernmost_Northing 46.36;
    String Program_data_page "https://www.fisheries.noaa.gov/region/new-england-mid-atlantic#science";
    String source_summary_url "https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.nodc:0162412";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 39.55;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "platform_code";
    String summary "Bottom temperature data from lobster traps sites the the Gulf of Maine and the South New England Bight. 1880-01-16 to 2017-05-16";
    String time_coverage_end "2017-05-16T15:12:00Z";
    String time_coverage_start "1880-01-16T06:23:00Z";
    String title "Environmental Monitors on Lobster Traps. 1880-01-16 to 2017-05-16";
    Float64 Westernmost_Easting -73.05;
  }
}

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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