Easier access to scientific data
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ERDDAP
Easier access to scientific data |
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Brought to you by NOAA NMFS SWFSC ERD |
| Dataset Title: | Bedford Basin Oxygen Winkler and Chlorophyll Data Grid View
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| Institution: | Ocean Frontier Institute (Dataset ID: bbts_water_samples_grid) |
| Information: | Summary
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Attributes {
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.2270528e+9, 1.7604864e+9;
String axis "T";
String calendar "standard";
String comment "Date of sampling for each water sample.";
String coverage_content_type "coordinate";
String ioos_category "Time";
String long_name "Time of observation.";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String time_precision "day";
String units "seconds since 1970-01-01T00:00:00Z";
Float64 valid_max 2.524608e+9;
Float64 valid_min 1.1991456e+9;
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float32 actual_range 1.0, 60.0;
String axis "Z";
String coverage_content_type "coordinate";
String ioos_category "Location";
String long_name "Depth";
String positive "down";
String standard_name "depth";
String units "m";
Float32 valid_max 65.0;
Float32 valid_min 1.0;
}
dissolved_o2 {
String ancillary_variables "oxygen_analysis_date";
Float64 colorBarMaximum 1.0;
Float64 colorBarMinimum 0.0;
String comment "Two replicate Winkler titrations averaged for each time/depth pair.";
String coverage_content_type "physicalMeasurement";
String ioos_category "Dissolved O2";
String long_name "Dissolved oxygen concentration (Winkler method)";
String standard_name "volume_fraction_of_oxygen_in_sea_water";
String units "ml/L";
}
chlorophyll_a_welschmeyer {
String ancillary_variables "chlorophyll_analysis_date chlorophyll_comments";
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
String comment "Three replicate fluorometric measurements averaged for each time/depth pair using the Welschmeyer method in the laboratory.";
String coverage_content_type "physicalMeasurement";
String ioos_category "Ocean Color";
String long_name "Chlorophyll-a concentration (Welschmeyer method)";
String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
String units "µg/l";
}
chlorophyll_a_acid {
String ancillary_variables "chlorophyll_analysis_date chlorophyll_comments";
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
String comment "Three replicate fluorometric measurements averaged for each time/depth pair using the acidification method in the laboratory.";
String coverage_content_type "physicalMeasurement";
String ioos_category "Ocean Color";
String long_name "Chlorophyll-a concentration (acidification method)";
String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
String units "µg/l";
}
NC_GLOBAL {
String acknowledgement "Data collected by the Ocean Frontier Institute in collaboration with the Bedford Institute of Oceanography.";
String cdm_data_type "Grid";
String comment "Latitude and Longitude may not be exact, as the platform is a research vessel that may drift slightly during sampling.";
String Conventions "CF-1.10, COARDS, ACDD-1.3";
String creator_email "ceotr@dal.ca";
String creator_institution "Ocean Frontier Institute";
String creator_name "OFI";
String creator_type "institution";
String creator_url "https://www.ofi.ca";
String history
"Lab data gathered from water samples from Bedford Basin, Nova Scotia.
2025-12-12T08:54:56Z (local files)
2025-12-12T08:54:56Z http://deverddap.ceotr.ca//erddap/griddap/bbts_water_samples_grid.das";
String id "bb1-oxygen-chlorophyll";
String infoUrl "https://ceotr.ocean.dal.ca/bbasin";
String institution "Ocean Frontier Institute";
String keywords "acid, acidification, basin, bedford, chemistry, chlorophyll, chlorophyll-a, chlorophyll_a_acid, chlorophyll_a_welschmeyer, color, concentration, data, depth, dissolved, dissolved o2, dissolved_o2, earth, Earth Science > Oceans >\\n Ocean\\n Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > Oxygen, fraction, frontier, institute, mass, mass_concentration_of_chlorophyll_a_in_sea_water, method, O2, ocean, ocean color, oceans, oxygen, science, sea, seawater, series, time, time\\n series, volume, volume_fraction_of_oxygen_in_sea_water, water, welschmeyer, winkler";
String keywords_vocabulary "GCMD Science Keywords";
String latitude "44.6917658";
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.";
String longitude "-63.6407906";
String platform "research vessel";
String platform_code "31";
String platform_name "Sigma T";
String platform_type "research vessel";
String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
String project "Bedford Basin Time Series";
String source "Discrete water samples collected weekly from the Bedford Basin (BB1) station.";
String sourceUrl "(local files)";
String standard_name_vocabulary "CF Standard Name Table v84";
String summary "Oxygen Winkler and Chlorophyll data otained through Winkler, Welschmeyer, and Acid methods. The samples used in this data were gathered as part of the Bedford Basin Time Series project. Samples are taken from the Bedford Basin station (BB1) at coordinates: 44.6917658333, -63.6407906667.";
String time_coverage_end "2025-10-15T00:00:00Z";
String time_coverage_start "2008-11-19T00:00:00Z";
String title "Bedford Basin Oxygen Winkler and Chlorophyll Data Grid View";
}
}
Data Access Protocol (DAP) and its
projection 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.
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.