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Dataset Title:  Gulf of Maine WBTS CTD Observations Subscribe RSS
Institution:  University of New Hampshire/University of Maine/NERACOOS   (Dataset ID: WBTS_CTD)
Range: longitude = -69.866 to -69.866°E, latitude = 42.86 to 42.86°N, time = 2004-10-29T00:00:00Z to 2024-03-14T00:00:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | 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:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Station_ID {
    String ioos_category "Identifier";
    String long_name "Station Identifier";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 42.86, 42.86;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -69.866, -69.866;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.099008e+9, 1.7103744e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    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";
  }
  Day_Of_Year {
    Int32 actual_range 3, 352;
    String ioos_category "Time";
    String long_name "Day of Year";
  }
  Depth {
    Int16 _FillValue 32767;
    Int16 actual_range 1, 257;
    String ioos_category "Location";
    String long_name "Depth of reading";
    String units "meters";
  }
  Temperature {
    Float64 actual_range 3.676, 22.351;
    String ioos_category "Temperature";
    String long_name "Temperature";
    String units "celsius";
  }
  Salinity {
    Float32 actual_range 30.0624, 34.8234;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String units "PSU";
  }
  Chlorophyll {
    Float32 actual_range 0.0, 12.10027;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String ioos_category "Ocean Color";
  }
 }
  NC_GLOBAL {
    String acknowledgment "Data collection was supported by multiple awards to NERACOOS, the University of New Hampshire and the University of Maine from various funding agencies, including NSF, NOAA and BOEM.";
    String cdm_data_type "Point";
    String contributor_email "shawn.shellito@unh.edu";
    String contributor_name "University of New Hampshire";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_country "USA";
    String creator_email "shawn.shellito@unh.edu";
    String creator_institution "Ocean Process and Analysis Lab (OPAL) - University of New Hampshire";
    String creator_name "Shawn Shellito";
    String creator_role "pi";
    String creator_sector "academic";
    String creator_type "person";
    Float64 Easternmost_Easting -69.866;
    String featureType "Point";
    Float64 geospatial_lat_max 42.86;
    Float64 geospatial_lat_min 42.86;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -69.866;
    Float64 geospatial_lon_min -69.866;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-10-18T12:27:16Z (local files)
2024-10-18T12:27:16Z http://data.neracoos.org/tabledap/WBTS_CTD.das";
    String infoUrl "https://www.sentinelmonitoring.org/";
    String institution "University of New Hampshire/University of Maine/NERACOOS";
    String keywords "Biodiversity, Calanus, fluorescence, Gulf of Maine, plankton, salinity, temperature, time series";
    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 42.86;
    String program "NERACOOS";
    String project "Coastal Ocean Observing and Analysis (COOA) and Coastal Carbon Group (CCG) - University of New Hampshire; NERACOOS ISMN (Integrated Sentinel Monitoring Network); MBON (Marine Biodiversity Observation Network) Gulf of Maine CTD Observations: Wilkinson Basin Time Series Station (WBTS)";
    String publisher_country "USA";
    String publisher_email "dpugh@gmri.org";
    String publisher_name "Northeastern Regional Association of Coastal and Ocean Observing Systems (NERACOOS)";
    String publisher_type "institution";
    String publisher_url "http://www.neracoos.org/";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 42.86;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "Depth, Salinity, Chlorophyll";
    String summary "The R/V Gulf Challenger system comprised a Sea-Bird Electronics (SBE) 25Plus CTD, an SBE-55 Sampling Rosette with six four-liter Niskin bottles, a dedicated Hawboldt Industries SPR 1424/S Science winch, and a SBE-33 real-time monitoring and sampling deck unit. The system provided high resolution vertical profiling of hydrographic properties (e.g. conductivity, salinity, temperature). The raw CTD data and bottle trips were acquired by SBE Seasave on a Windows 7 workstation and were processed from hex files to cnv files.  Post cruise data processing was completed on a Windows 7 machine running SEABIRD SBE DATA Processing version 7.22.5 At most stations, Niskin bottles were used to capture water samples at depths of  2, 10, 20 and 40 meters. To measure chlorophyll a concentration at discrete depths, duplicate, 100 mL or 500-550 mL subsamples were collected from Nisken bottles at the surface, 10, 20 and 40 meters. Water was filtered immediately on the vessel using glass fiber filters (GF/F) and polycarbonate membrane filters with pore sizes of 0.7 µm and 0.1µm. Chlorophyll a concentrations were calculated were using equations in Strickland and Parsons (1972). Prior to 2014, IOP profilers calibrated annually were used to measure water column stimulated fluorescence along with discrete chlorophyll concentration measurements. After 2014, the nominal chlorophyll a readings from stimulated fluorescence measured with a Wetlabs Wetstar Chorophyll Fluorometer S/N WSS-164 were corrected with chlorophyll concentrations measured from bottle samples.";
    String time_coverage_end "2024-03-14T00:00:00Z";
    String time_coverage_start "2004-10-29T00:00:00Z";
    String title "Gulf of Maine WBTS CTD Observations";
    Float64 Westernmost_Easting -69.866;
  }
}

 

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.

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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