BCO-DMO ERDDAP
Accessing BCO-DMO data

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Dataset Title:	[BVAL CTD profiles (BATS Validation cruises)] - Two decibar averaged CTD profiles collected during BATS Validation (BVAL) cruises from April 1991 through July 2023 (Bermuda Atlantic Time-series Study)
Institution:	BCO-DMO (Dataset ID: bcodmo_dataset_939210_v7)
Range:	longitude = -74.1672 to -59.649°E, latitude = 19.2252 to 41.5234°N, depth = 1.9 to 6009.2m, time = 1991-04-29T14:30:00Z to 2023-07-12T00:25:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| 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 {
  ID {
    Int32 actual_range 50001001, 50060025;
    String long_name "Id";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 6.729354e+8, 1.6891215e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Iso_datetime_utc_deployed";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  ISO_DateTime_UTC_recovered {
    Float64 actual_range 6.7293864e+8, 1.68912474e+9;
    String ioos_category "Time";
    String long_name "Iso_datetime_utc_recovered";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  Vessel {
    String long_name "Vessel";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 19.2252, 41.5234;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude_deployed";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -74.1672, -59.649;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude_deployed";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Latitude_recovered {
    Float32 actual_range 19.2254, 41.5234;
    String long_name "Latitude_recovered";
    String units "degrees_north";
  }
  Longitude_recovered {
    Float32 actual_range -74.1605, -59.627;
    String long_name "Longitude_recovered";
    String units "degrees_east";
  }
  Cruise_type {
    String long_name "Cruise_type";
    String units "unitless";
  }
  Cruise_num {
    Int32 actual_range 50001, 50060;
    String long_name "Cruise_num";
    String units "unitless";
  }
  Cast {
    Int32 actual_range 1, 50;
    String long_name "Cast";
    String units "unitless";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 1.9, 6009.2;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  QF_Depth {
    Int32 actual_range 2, 2;
    String long_name "Qf_depth";
    String units "unitless";
  }
  Pressure {
    Float32 actual_range 2.0, 6132.0;
    String long_name "Pressure";
    String units "decibars (dbar)";
  }
  QF_Pressure {
    Int32 actual_range 2, 2;
    String long_name "Qf_pressure";
    String units "unitless";
  }
  Temperature {
    Float32 actual_range 1.955, 29.961;
    String long_name "Temperature";
    String units "degrees Celsius";
  }
  QF_Temperature {
    Int32 actual_range 2, 9;
    String long_name "Qf_temperature";
    String units "unitless";
  }
  Salinity {
    Float32 actual_range 33.458, 37.33;
    String long_name "Salinity";
    String units "PSU";
  }
  QF_Salinity {
    Int32 actual_range 2, 9;
    String long_name "Qf_salinity";
    String units "unitless";
  }
  Oxygen {
    Float32 actual_range 111.59, 283.06;
    String long_name "Oxygen";
    String units "micromole per kilogram (umol/kg)";
  }
  QF_Oxygen {
    Int32 actual_range 2, 9;
    String long_name "Qf_oxygen";
    String units "unitless";
  }
  BAC {
    Float32 actual_range 0.341, 1.797;
    String long_name "Bac";
    String units "reciprocal meters (1/m)";
  }
  QF_BAC {
    Int32 actual_range 2, 9;
    String long_name "Qf_bac";
    String units "unitless";
  }
  Flu {
    Float32 actual_range -0.048, 2.763;
    String long_name "Flu";
    String units "relative fluorescence units (RFU)";
  }
  QF_Flu {
    Int32 actual_range 2, 9;
    String long_name "Qf_flu";
    String units "unitless";
  }
  PAR {
    Float32 actual_range 0.0, 4497.74;
    String long_name "Par";
    String units "microeinsteins per meter squared per second (uE/m2/s)";
  }
  QF_PAR {
    Int32 actual_range 2, 9;
    String long_name "Qf_par";
    String units "unitless";
  }
  Date_deployed {
    Int32 actual_range 19910429, 20230712;
    String long_name "Date_deployed";
    String units "unitless";
  }
  Date_recovered {
    Int32 actual_range 19910429, 20230712;
    String long_name "Date_recovered";
    String units "unitless";
  }
  Time_deployed {
    Int32 actual_range 0, 2359;
    String long_name "Time_deployed";
    String units "unitless";
  }
  Time_recovered {
    Int32 actual_range 0, 2357;
    String long_name "Time_recovered";
    String units "unitless";
  }
  Decimal_Year_deployed {
    Float32 actual_range 1991.325, 2023.526;
    String long_name "Decimal_year_deployed";
    String units "unitless";
  }
  Decimal_Year_recovered {
    Float32 actual_range 1991.325, 2023.526;
    String long_name "Decimal_year_recovered";
    String units "unitless";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_url "https://www.bco-dmo.org/";
    String defaultDataQuery "&amp;time&lt;now";
    String doi "10.26008/1912/bco-dmo.939210.7";
    Float64 Easternmost_Easting -59.649;
    Float64 geospatial_lat_max 41.5234;
    Float64 geospatial_lat_min 19.2252;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -59.649;
    Float64 geospatial_lon_min -74.1672;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 6009.2;
    Float64 geospatial_vertical_min 1.9;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2025-01-05T06:46:52Z (local files)
2025-01-05T06:46:52Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_939210_v7.das";
    String infoUrl "https://www.bco-dmo.org/dataset/939210";
    String institution "BCO-DMO";
    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.";
    Float64 Northernmost_Northing 41.5234;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 19.2252;
    String summary "Data presented here are 2 dbar CTD for BATS Validation (BVAL) cruises from Jun 1991 (BVAL cruise #50016) through July 2023 (BVAL cruise #50060). Profiles of primary CTD measurements (Pressure, Depth, Temperature, and Salinity) are reported along with auxiliary data for dissolved oxygen, beam attenuation coefficient, relative fluorescence, and photosynthetic Active Radiation (PAR). Profiles were collected using a standard Sea-Bird SBE-09 plus CTD. Data are processed following the methods of Knap et al., 1997 with the final product being reported as two decibar averages and all profiles. It should be noted that the two decibar profiles are reported for the downcast only and bottle marker data collected on the upcast are presented with the bottle data.";
    String time_coverage_end "2023-07-12T00:25:00Z";
    String time_coverage_start "1991-04-29T14:30:00Z";
    String title "[BVAL CTD profiles (BATS Validation cruises)] - Two decibar averaged CTD profiles collected during BATS Validation (BVAL) cruises from April 1991 through July 2023 (Bermuda Atlantic Time-series Study)";
    Float64 Westernmost_Easting -74.1672;
  }
}

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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