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Dataset Title:  Realtime Conductivity,Temperature,D,CHL, Oxygen,pH measurements in Raritan
River by Rutgers Boathouse
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Institution:  Institute of Marine and Coastal Science, Rutgers   (Dataset ID: RARITAN_REALTIME_CTD_2017)
Range: depth = 1.015379 to 4.99m, time = 2017-04-14T00:00:30Z to 2020-06-04T00:01:05Z
Information:  Summary ? | License ? | Metadata | Background (external link) | Data Access Form
 
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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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.492128030214e+9, 1.5912288655e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "UTC Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  ox {
    Float32 _FillValue 9.999e+20;
    Float32 actual_range 0.56, 20.73104;
    String ioos_category "Dissolved O2";
    String long_name "Oxygen Concentration";
    Float32 missing_value 9.999e+20;
    String units "mg/l";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 _FillValue 9.999e+20;
    Float32 actual_range 1.015379, 4.99;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    Float32 missing_value 9.999e+20;
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  chlorophyll {
    Float32 _FillValue 9.999e+20;
    Float32 actual_range -0.4541379, 709.7148;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String ioos_category "Ocean Color";
    String long_name "Chlorophyll Concentration";
    Float32 missing_value 9.999e+20;
    String standard_name "concentration_of_chlorophyll_in_sea_water";
    String units "ug/l";
  }
  turbidity {
    Float32 _FillValue 9.999e+20;
    Float32 actual_range 1.577931, 33789.63;
    String ioos_category "Unknown";
    String long_name "Turbidity";
    Float32 missing_value 9.999e+20;
    String units "FNU";
  }
  oxsat {
    Float32 _FillValue 9.999e+20;
    Float32 actual_range 5.74, 204.3403;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved O2";
    String long_name "Oxygen Percent Saturation";
    Float32 missing_value 9.999e+20;
    String units "percent";
  }
  salinity {
    Float32 _FillValue 9.999e+20;
    Float32 actual_range 0.04, 11.07;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String ioos_category "Salinity";
    String long_name "Salinity";
    Float32 missing_value 9.999e+20;
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  }
  temperature {
    Float32 _FillValue 9.999e+20;
    Float32 actual_range -0.1527586, 31.82162;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Temperature";
    String long_name "Temperature";
    Float32 missing_value 9.999e+20;
    String units "Celsius";
  }
  pH {
    Float32 _FillValue 9.999e+20;
    Float32 actual_range 6.71, 10.07;
    Float64 colorBarMaximum 9.0;
    Float64 colorBarMinimum 7.0;
    String ioos_category "Salinity";
    String long_name "pH";
    Float32 missing_value 9.999e+20;
    String standard_name "sea_water_ph_reported_on_total_scale";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_name "Institute of Marine and Coastal Science, Rutgers";
    String creator_url "https://marine.rutgers.edu/main/";
    String defaultGraphQuery "time,depth,temperature&time>now-7day&.draw=markers&.marker=6%7C5";
    Float64 geospatial_vertical_max 4.99;
    Float64 geospatial_vertical_min 1.015379;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"File initialized on April 17, 2017 by EJH using read_EXO.py
2020-06-04T05:36:04Z (local files)
2020-06-04T05:36:04Z http://tds.marine.rutgers.edu/tabledap/RARITAN_REALTIME_CTD_2017.das";
    String infoUrl "https://marine.rutgers.edu/main/";
    String institution "Institute of Marine and Coastal Science, Rutgers";
    String keywords "boathouse, chemistry, chl, chlorophyll, coastal, color, concentration, concentration_of_chlorophyll_in_sea_water, conductivity, data, density, depth, dissolved, dissolved o2, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Salinity/Density > Salinity, institute, marine, measurements, O2, ocean, ocean color, oceans, oxsat, oxygen, percent, pH, practical, raritan, realtime, river, rutgers, salinity, saturation, science, sea, sea_water_practical_salinity, seawater, temperature, time, turbidity, water";
    String keywords_vocabulary "GCMD Science Keywords";
    Float64 Latitude 40.4887;
    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 Longitude -74.4337;
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "Realtime Conductivity,Temperature,D,CHL, Oxygen,pH measurements in Raritan River by Rutgers Boathouse";
    String time_coverage_end "2020-06-04T00:01:05Z";
    String time_coverage_start "2017-04-14T00:00:30Z";
    String title "Realtime Conductivity,Temperature,D,CHL, Oxygen,pH measurements in Raritan River by Rutgers Boathouse";
  }
}

 

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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