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Dataset Title:  UNH Great Bay Buoy, N.H. Corrected Suna Nitrate Data   RSS
Institution:  University of New Hampshire - Ocean Process Analysis Laboratory   (Dataset ID: GREAT_BAY_TS_corrected_nitrate_csv)
Range: longitude = -70.86 to -70.86°E, latitude = 43.07 to 43.07°N, depth = 2.0 to 2.0m, time = 2017-06-29T00:00:00Z to 2017-11-03T22:00:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background | Subset | Data Access Form
 
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Y Axis: 
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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 {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4986944e+9, 1.5097464e+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 units "seconds since 1970-01-01T00:00:00Z";
  }
  mooring_site_desc {
    String ioos_category "Identifier";
    String long_name "Mooring Site Desc";
  }
  Temp {
    Float32 actual_range 11.18, 26.034;
    String ioos_category "Temperature";
    String long_name "Temperature";
    String standard_name "sea_water_temperature";
    String units "celsius";
  }
  Sal {
    Float32 actual_range 15.36, 30.5;
    String ioos_category "Salinity";
    String long_name "Saliinity";
    String standard_name "sea_water_salinity";
    String units "psu";
  }
  Nitrate_umol {
    Float32 actual_range -9.4, 82.2175;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved Nutrients";
    String long_name "microMole Concentration Of Nitrate In Sea Water";
    Float32 missing_value -999.0;
    String standard_name "mole_concentration_of_nitrate_in_sea_water";
    String units "umol";
  }
  Nitrate {
    Float32 actual_range -0.13166, 1.1516;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved Nutrients";
    String long_name "Mg/Liter Concentration Of Nitrate In Sea Water";
    Float32 missing_value -999.0;
    String standard_name "mole_concentration_of_nitrate_in_sea_water";
    String units "mg L-1";
  }
  Absorbance254nm {
    String ioos_category "Dissolved Nutrients";
    String long_name "Absorbance254nm";
  }
  Absorbance350nm {
    String ioos_category "Dissolved Nutrients";
    String long_name "Absorbance350nm";
  }
  Bromide {
    Int16 actual_range 0, 0;
    String ioos_category "Unknown";
    String long_name "Bromide";
    Int16 missing_value -999;
    String units "mg L-1";
  }
  Spectrum_Average {
    Float64 actual_range 2889.8, 15006.05;
    String ioos_category "Statistics";
    String long_name "Spectrum Average";
    Float64 missing_value -999.0;
  }
  Relative_Humidity {
    Float32 actual_range 0.0, 26.2;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 20.0;
    String ioos_category "Meteorology";
    String long_name "Relative Humidity";
    Float32 missing_value -999.0;
    String standard_name "relative_humidity";
    String units "percent";
  }
  RMSE_fit {
    Float32 actual_range 1.2e-4, 0.0013516;
    String ioos_category "Unknown";
    String long_name "RMSE Fit";
    Float32 missing_value -999.0;
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 43.07, 43.07;
    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 -70.86, -70.86;
    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";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Byte actual_range 2, 2;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  water_depth {
    Byte actual_range 4, 4;
    String ioos_category "Location";
    String long_name "Water Depth";
    String units "m";
  }
  year {
    Int16 actual_range 2017, 2017;
    String ioos_category "Time";
    String long_name "Year";
  }
  month {
    Byte actual_range 6, 11;
    String ioos_category "Time";
    String long_name "Month";
  }
  day {
    Byte actual_range 1, 31;
    String ioos_category "Time";
    String long_name "Day";
  }
  hour {
    Byte actual_range 0, 23;
    String ioos_category "Time";
    String long_name "Hour";
  }
  minute {
    Byte actual_range 0, 45;
    String ioos_category "Time";
    String long_name "Minute";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station, longitude, latitude";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "tom.gregory@unh.edu";
    String creator_name "Tom Gregory";
    String creator_type "insitution";
    String creator_url "https://eos.unh.edu/ocean-process-analysis-laboratory";
    String defaultGraphQuery "time,Nitrate_umol&time%3E=max(time)-7days&.draw=lines&.color=0x000000";
    Float64 Easternmost_Easting -70.86;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 43.07;
    Float64 geospatial_lat_min 43.07;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.86;
    Float64 geospatial_lon_min -70.86;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 2.0;
    Float64 geospatial_vertical_min 2.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2020-09-29T22:53:07Z (local files)
2020-09-29T22:53:07Z http://www.neracoos.org/tabledap/GREAT_BAY_TS_corrected_nitrate_csv.das";
    String infoUrl "http://www.neracoos.org/nutrientobservatory";
    String institution "University of New Hampshire -  Ocean Process Analysis Laboratory";
    String keywords "absorbance254nm, absorbance350nm, altimetry, assurance, atmosphere, atmospheric, average, bay, bromide, chemistry, concentration, control, corrected, data, day, depth, desc, dissolved, dissolved nutrients, earth, Earth Science > Atmosphere > Atmospheric Water Vapor > Humidity, Earth Science > Oceans > Ocean Chemistry > Nitrate, fit, great, hampshire, hour, humidity, identifier, laboratory, latitude, longitude, meteorology, minute, mole, mole_concentration_of_nitrate_in_sea_water, month, mooring, mooring_site_desc, n02, net, nitrate, Nitrate_umol, no3, nutrients, observations, ocean, oceans, quality, relative, relative_humidity, rmse, RMSE_fit, sal, satellite, science, sea, seawater, site, spectrum, Spectrum_Average, station, statistics, Temp, temperature, time, university, vapor, water, water_depth, year";
    String keywords_vocabulary "GCMD Science Keywords";
    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 neracoos_data_provider "UNH";
    Float64 Northernmost_Northing 43.07;
    String publisher_email "info@neracoos.org";
    String publisher_name "Northeastern Regional Association of Coastal and Ocean Observing Systems (NERACOOS)";
    String publisher_phone "(603) 319-1785";
    String publisher_url "http://www.neracoos.org/";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 43.07;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "station, year, month";
    String summary "Need Quality Assurance (QA)/Quality Control (QC) notes. Nitrate observations corrected - From SUNA sensors";
    String time_coverage_end "2017-11-03T22:00:00Z";
    String time_coverage_start "2017-06-29T00:00:00Z";
    String title "UNH Great Bay Buoy, N.H. Corrected Suna Nitrate Data";
    Float64 Westernmost_Easting -70.86;
  }
}

 

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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