BCO-DMO ERDDAP
Accessing BCO-DMO data

Make A Graph

Dataset Title:	[SR2508 CTD profiles] - CTD profiles collected from R/V Sally Ride cruise SR2508 off the coast of California from April 8 to 21, 2025 (Microbial Activity and Chemoautotrophy in the Deep Sea: Who, How, and How Much?)
Institution:	BCO-DMO (Dataset ID: bcodmo_dataset_1004720_v1)
Range:	longitude = -126.743 to -122.545°E, latitude = 34.4352 to 37.1338°N, depth = 0.992 to 4694.13m, time = 2025-04-08T21:23:00Z to 2025-04-20T22:32:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form \| Files

To work correctly, this web page requires that JavaScript be enabled in your browser. Please:
1) Enable JavaScript in your browser:
      • Chrome: "Settings : Advanced : Privacy and security : Site Settings : JavaScript"
      • Firefox: (it should be always on!)"
      • Opera: "Settings : Websites : JavaScript"
      • Safari: "Safari : Preferences : Security : Enable JavaScript"
2) Reload this web page.

Graph Type:

X Axis:

Y Axis:

Color:

Constraints	Optional Constraint #1		Optional Constraint #2

Server-side Functions

distinct()

Hover here to see a list of options. Click on an option to select it.

Graph Settings

Marker Type:

Size:

Color:

Color Bar:

Continuity:

Scale:

Minimum:

Maximum:

N Sections:

Draw land mask:

Y Axis Minimum:

Maximum:

(Please be patient. It may take a while to get the data.)

Optional:
Then set the File Type: (File Type information)
and

or view the URL:
(Documentation / Bypass this form

)

Click on the map to specify a new center point.

Zoom:

Time range:

[The graph you specified. Please be patient.]

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 {
  file_name {
    String long_name "File_name";
    String units "unitless";
  }
  STNNBR {
    Int32 actual_range 1, 4;
    String long_name "Stnnbr";
    String units "unitless";
  }
  CASTNO {
    Int32 actual_range 1, 17;
    String long_name "Castno";
    String units "unitless";
  }
  DEPTH_BOTTOM {
    Int32 actual_range 103, 4704;
    String long_name "Depth_bottom";
    String units "meters (m)";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.74414738e+9, 1.74518832e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Iso_datetime_utc";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  DATE {
    String long_name "Date";
    String units "unitless";
  }
  time_unitless {
    String long_name "Time";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 34.4352, 37.1338;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -126.743, -122.545;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  CTDPRS {
    Float32 actual_range 1.0, 4781.0;
    String long_name "Ctdprs";
    String units "decibars (dbar)";
  }
  CTDPRS_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Ctdprs_flag_w";
    String units "unitless";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 0.992, 4694.13;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Ctddepth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  CTDDEPTH_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Ctddepth_flag_w";
    String units "unitless";
  }
  CTDTMP {
    Float32 actual_range 1.4847, 16.8976;
    String long_name "Ctdtmp";
    String units "degrees Celsius, ITS-90";
  }
  CTDTMP_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Ctdtmp_flag_w";
    String units "unitless";
  }
  CTDTMP2 {
    Float32 actual_range 1.4837, 16.9116;
    String long_name "Ctdtmp2";
    String units "degrees Celsius, ITS-90";
  }
  CTDTMP2_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Ctdtmp2_flag_w";
    String units "unitless";
  }
  CTDSAL {
    Float32 actual_range 32.5681, 34.7168;
    String long_name "Ctdsal";
    String units "PSU";
  }
  CTDSAL_FLAG_W {
    Int32 actual_range 2, 4;
    String long_name "Ctdsal_flag_w";
    String units "unitless";
  }
  CTDSAL2 {
    Float32 actual_range 32.5709, 34.6913;
    String long_name "Ctdsal2";
    String units "PSU";
  }
  CTDSAL2_FLAG_W {
    Int32 actual_range 2, 4;
    String long_name "Ctdsal2_flag_w";
    String units "unitless";
  }
  CTDOXY {
    Float32 actual_range 7.489, 303.628;
    String long_name "Ctdoxy";
    String units "micromoles per liter (umol/L)";
  }
  CTDOXY_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Ctdoxy_flag_w";
    String units "unitless";
  }
  CTDFLUOR {
    Float32 actual_range 0.024164, 5.3038;
    String long_name "Ctdfluor";
    String units "milligrams per cubic meter (mg/m^3)";
  }
  CTDFLUOR_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Ctdfluor_flag_w";
    String units "unitless";
  }
  CTDXMISS {
    Float32 actual_range 86.4523, 98.956;
    String long_name "Ctdxmiss";
    String units "percent transmission";
  }
  CTDXMISS_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Ctdxmiss_flag_w";
    String units "unitless";
  }
  PAR {
    Float32 actual_range -0.007396, 6991.1;
    String long_name "Par";
    String units "micromoles per square meter per second (umol/m^2/sec)";
  }
  PAR_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Par_flag_w";
    String units "unitless";
  }
  SPAR {
    Float32 actual_range 0.0059321, 2.6674;
    String long_name "Spar";
    String units "micromoles per square meter per second (umol/m^2/sec)";
  }
  SPAR_FLAG_W {
    Int32 actual_range 2, 4;
    String long_name "Spar_flag_w";
    String units "unitless";
  }
  SIGMA_THETA {
    Float32 actual_range 24.0411, 27.808;
    String long_name "Sigma_theta";
    String units "kilograms per cubic meter (kg/m^3)";
  }
  SIGMA_THETA_FLAG_W {
    Int32 actual_range 2, 4;
    String long_name "Sigma_theta_flag_w";
    String units "unitless";
  }
  SIGMA_THETA2 {
    Float32 actual_range 24.0432, 27.7875;
    String long_name "Sigma_theta2";
    String units "kilograms per cubic meter (kg/m^3)";
  }
  SIGMA_THETA2_FLAG_W {
    Int32 actual_range 2, 4;
    String long_name "Sigma_theta2_flag_w";
    String units "unitless";
  }
  SIGMA_T {
    Float32 actual_range 24.041, 27.7789;
    String long_name "Sigma_t";
    String units "kilograms per cubic meter (kg/m^3)";
  }
  SIGMA_T_FLAG_W {
    Int32 actual_range 2, 4;
    String long_name "Sigma_t_flag_w";
    String units "unitless";
  }
  SIGMA_T2 {
    Float32 actual_range 24.043, 27.7606;
    String long_name "Sigma_t2";
    String units "kilograms per cubic meter (kg/m^3)";
  }
  SIGMA_T2_FLAG_W {
    Int32 actual_range 2, 4;
    String long_name "Sigma_t2_flag_w";
    String units "unitless";
  }
  POTENTIAL_TMP {
    Float32 actual_range 1.1456, 16.8969;
    String long_name "Potential_tmp";
    String units "degrees Celsius";
  }
  POTENTIAL_TMP_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Potential_tmp_flag_w";
    String units "unitless";
  }
  POTENTIAL_TMP2 {
    Float32 actual_range 1.1444, 16.911;
    String long_name "Potential_tmp2";
    String units "degrees Celsius";
  }
  POTENTIAL_TMP2_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Potential_tmp2_flag_w";
    String units "unitless";
  }
  ALTIMETER {
    Float32 actual_range -13.76, 142.73;
    String long_name "Altimeter";
    String units "meters (m)";
  }
  ALTIMETER_FLAG_W {
    Int32 actual_range 2, 2;
    String long_name "Altimeter_flag_w";
    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.1004720.1";
    Float64 Easternmost_Easting -122.545;
    Float64 geospatial_lat_max 37.1338;
    Float64 geospatial_lat_min 34.4352;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -122.545;
    Float64 geospatial_lon_min -126.743;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 4694.13;
    Float64 geospatial_vertical_min 0.992;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2026-08-23T01:10:06Z (local files)
2026-08-23T01:10:06Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_1004720_v1.das";
    String infoUrl "https://osprey.bco-dmo.org/dataset/1004720";
    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 37.1338;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 34.4352;
    String summary "This dataset consists of CTD sensor data collected during the DARC Microbes Cruise on R/V Sally Ride (SR2508) from April 8 to April 21, 2025, off the coast of California.";
    String time_coverage_end "2025-04-20T22:32:00Z";
    String time_coverage_start "2025-04-08T21:23:00Z";
    String title "[SR2508 CTD profiles] - CTD profiles collected from R/V Sally Ride cruise SR2508 off the coast of California from April 8 to 21, 2025 (Microbial Activity and Chemoautotrophy in the Deep Sea: Who, How, and How Much?)";
    Float64 Westernmost_Easting -126.743;
  }
}

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.

ERDDAP, Version 2.22
Disclaimers | Privacy Policy | Contact