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Dataset Title:	Bedford Basin BOP Spectral Level 2 Binned
Institution:	MEOPAR, OFI (Dataset ID: bb1_bop_spectral_level2_binned)
Information:	Summary \| License \| 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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.2573429067e+9, 1.7646898502e+9;
    String axis "T";
    String calendar "gregorian";
    String interpolation_methodology "linear";
    String ioos_category "Time";
    String long_name "time of measurement";
    String platform "BOP - Bio Optical Package/Profiler";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_vocabulary "https://vocab.nerc.ac.uk/collection/OG1/current/TIME/";
    String units "seconds since 1970-01-01T00:00:00Z";
    Float64 valid_max 4.0e+9;
    Float64 valid_min 1.0e+9;
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 0.0, 60.0;
    String axis "Z";
    String coordinate_reference_frame "urn:ogc:crs:EPSG::4326";
    String coverage_content_type "coordinate";
    String depth_vocabulary "https://vocab.nerc.ac.uk/collection/OG1/current/DEPTH/";
    String identifier "b_depth";
    String instrument "PLUSX50327, SATCTD7229";
    String ioos_category "Location";
    String long_name "Depth";
    String observation_type "measured and interpolated";
    String platform "BOP - Bio Optical Package/Profiler";
    String positive "down";
    String references "WGS84";
    String standard_name "depth";
    String units "m";
  }
  wavelength {
    Int16 actual_range 350, 850;
    String coverage_content_type "coordinate";
    String ioos_category "Optical Properties";
    String long_name "Wavelength of radiation";
    String standard_name "radiation_wavelength";
    String units "nm";
    Int16 valid_max 850;
    Int16 valid_min 350;
  }
  surface_irradiance {
    String comment "Readings taken at surface. Dark correction has been applied to this data.";
    String coverage_content_type "physicalMeasurement";
    String identifier "SATHSE0211_ES";
    String instrument "Satlantic HyperOCR Hyperspectral Radiometer";
    String ioos_category "Optical Properties";
    String long_name "Solar Irradiance at the surface per unit wavelength";
    String observation_type "measured";
    String platform "BOP - Bio Optical Package/Profiler";
    String standard_name "solar_irradiance_per_unit_wavelength";
    String units "uW/cm^2/nm";
  }
  acs_a {
    Float64 _FillValue -9999.9;
    Float64 colorBarMaximum 500.0;
    Float64 colorBarMinimum -500.0;
    String comment "Calculated according to the sensor user manual.";
    String coverage_content_type "physicalMeasurement";
    String identifier "SATACS0020_ACS_A";
    String instrument "WetLabs Spectral Absorption and Attenuation Sensor";
    String long_name "AC-S Absorption";
    Float64 missing_value -9999.9;
    String observation_type "measured";
    String platform "BOP - Bio Optical Package/Profiler";
    String standard_name "volume_scattering_function_of_radiative_flux_in_sea_water";
    String units "m-1";
  }
  acs_c {
    Float64 _FillValue -9999.9;
    Float64 colorBarMaximum 500.0;
    Float64 colorBarMinimum -500.0;
    String comment "Calculated according to the sensor user manual.";
    String coverage_content_type "physicalMeasurement";
    String identifier "SATACS0020_ACS_C";
    String instrument "WetLabs Spectral Absorption and Attenuation Sensor";
    String long_name "AC_S Attenuation";
    Float64 missing_value -9999.9;
    String observation_type "measured";
    String platform "BOP - Bio Optical Package/Profiler";
    String standard_name "volume_scattering_function_of_radiative_flux_in_sea_water";
    String units "m-1";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "CF-1.10, COARDS, ACDD-1.3";
    String creator_name "MEOPAR, OFI";
    String creator_type "institution";
    String creator_url "https://ceotr.ca/bbasin/";
    String description "Bedford Basin, Nova Scotia, has been host to frequent monitoring by the Department of Fisheries and Oceans (DFO) at the Bedford Institute of Oceanography (BIO) since the 1960s. This monitoring was formalized as the Bedford Basin Monitoring Program (BBMP), a weekly time series, in 1999. Dalhousie University joined the BBMP in 2008 to begin a bio-optical time series, beginning a close relationship between academic and government researchers.";
    String format_version "CEOTR BBasin Processing Code V2";
    String history 
"Observational data from a bbasin area
2025-12-16T05:04:37Z (local files)
2025-12-16T05:04:37Z http://data.ceotr.ca/griddap/bb1_bop_spectral_level2_binned.das";
    String infoUrl "https://ceotr.ca/bbasin/";
    String institution "MEOPAR, OFI";
    String iso_3166_country_code "CA";
    String keywords "absorption, ac-s, acs_a, acs_c, attenuation, basin, bedford, binned, bop, conductivity, data, density, department, depth, dfo, earth, Earth\\n            Science > Oceans > Salinity/Density > Density, Earth Science >\\n            Oceans > Ocean Optics > Radiance, Earth Science > Oceans >\\n            Salinity/Density > Salinity, Earth Science > Oceans > Ocean Pressure\\n            > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water\\n            Temperature, Earth Science > Oceans > Salinity/Density > Conductivity, fisheries, flux, function, irradiance, level, meopar, ocean, oceans, ofi, optical, optical properties, optics, per, pressure, properties, radiance, radiative, salinity, salinity/density, scattering, science, sea, seawater, solar, solar_irradiance_per_unit_wavelength, spectral, surface, surface_irradiance, temperature, time, unit, volume, volume_scattering_function_of_radiative_flux_in_sea_water, water, wavelength";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Creative Commons Attribution 4.0 Attribution https://creativecommons.org/licenses/by/4.0/";
    String odf_data_type "CTD";
    String organization "Coastal Environmental Observation Coastal Environmental Observation Technology and Research (CEOTR)";
    String platform "research vessel";
    String platform_type "research vessel";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String processing_level "level2_binned";
    String program "Bedford Basin Monitoring Program";
    String publisher_country "Canada";
    String publisher_email "ceotr@dal.ca";
    String publisher_institution "Coastal Environmental Observation Coastal Environmental Observation Technology and Research (CEOTR)";
    String source "Observational data from a bbasin area";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v84";
    String summary "Bedford Basin, Nova Scotia, has been host to frequent monitoring by the Department of Fisheries and Oceans (DFO) at the Bedford Institute of Oceanography (BIO) since the 1960s. This monitoring was formalized as the Bedford Basin Monitoring Program (BBMP), a weekly time series, in 1999. Dalhousie University joined the BBMP in 2008 to begin a bio-optical time series, beginning a close relationship between academic and government researchers. This dataset consists of data collected by a Bio Optical Profiler (BOP)which is a series of instruments mounted on a large cage. There are no measurements taken in August of each year as the vessel is away for maintenance. The Bedford Basin station (BB1) is at 44.693611 N, -63.640278 E and has a maximum depth of 73 m, though the instruments are typically only sent to 60 m. Calibration coefficients are available upon request.";
    String testOutOfDate "now-25days";
    String time_coverage_end "2025-12-02T15:37:30Z";
    String time_coverage_start "2009-11-04T13:55:06Z";
    String title "Bedford Basin BOP Spectral Level 2 Binned";
  }
}

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its projection 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. It makes 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.

griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][latitude][longitude]).

For details, see the griddap Documentation.

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