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ERDDAP > tabledap > Make A Graph ?

Dataset Title:  Water Quality Monitor Data (WQM)   RSS
Institution:  Marine Institute   (Dataset ID: imi_wqm_data)
Range: longitude = -9.26629 to -9.26629°E, latitude = 53.22733 to 53.22733°N
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form
Graph Type:  ?
X Axis: 
Y Axis: 
Constraints ? Optional
Constraint #1 ?
Constraint #2 ?
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")
Graph Settings
Marker Type:   Size: 
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   
(Please be patient. It may take a while to get the data.)
Then set the File Type: (File Type information)
or view the URL:
(Documentation / Bypass this form ? )
    Click on the map to specify a new center point. ?
Time range:           -   +  
[The graph you specified. Please be patient.]


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 {
  instrument_id {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Instrument Id";
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 53.22733, 53.22733;
    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";
    Float64 actual_range -9.26629, -9.26629;
    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";
    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";
  time {
    String _CoordinateAxisType "Time";
    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";
  hhmmss {
    String ioos_category "Unknown";
    String long_name "HHMMSS";
  mmddyy {
    String ioos_category "Unknown";
    String long_name "MMDDYY";
  salinity {
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 8.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Practical Salinity";
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  temperature {
    String ioos_category "Temperature";
    String long_name "Sea Surface Temperature";
    String stanadard_name "sea_water_temperature";
    String units "degree_C";
  chlorophyll {
    String ioos_category "Optical Properties";
    String standard_name "mass_concentration_of_chlorophyll_in_sea_water";
    String units "ug/l";
  conductivity {
    String ioos_category "Unknown";
    String long_name "Conductivity";
    String units "microSiemens/cm";
  dissolved_oxygen {
    String ioos_category "Dissolved O2";
    String long_name "dissolved_oxygen";
    String units "ml/l";
  turbidity {
    String ioos_category "Optical Properties";
    String standard_name "sea_water_turbidity";
    String units "NTU";
  pressure {
    String ioos_category "Pressure";
    String long_name "sea water pressure";
    String standard_name "sea_water_pressure";
    String units "dbar";
  rawchl {
    String ioos_category "Unknown";
    String long_name "Rawchl";
  rawdo {
    String ioos_category "Unknown";
    String long_name "Rawdo";
  rawturb {
    String ioos_category "Unknown";
    String long_name "Rawturb";
  volts {
    String ioos_category "Unknown";
    String long_name "Volts";
  qflag {
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Quality";
    String long_name "Qflag";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "instrument_id, longitude, latitude";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Marine Institute";
    String creator_url "";
    Float64 Easternmost_Easting -9.26629;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 53.22733;
    Float64 geospatial_lat_min 53.22733;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -9.26629;
    Float64 geospatial_lon_min -9.26629;
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2022-09-27T13:20:57Z (Cassandra)
    String infoUrl "";
    String institution "Marine Institute";
    String keywords "altimetry, chl, chlorophyll, cond, data, depth, hhmmss, identifier, institute, instrument, instrument_id, laboratory, latitude, longitude, marine, meter, mmddyy, nephelometric, ntu, pres, pressure, qflag, quality, rawchl, rawdo, rawturb, sal, satellite, temperature, time, turbidity, units, volts, water, wqm";
    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 53.22733;
    String sourceUrl "(Cassandra)";
    Float64 Southernmost_Northing 53.22733;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "instrument_id,latitude,longitude";
    String summary "Water Quality Monitor Data. Marine Institute";
    String title "Water Quality Monitor Data (WQM)";
    Float64 Westernmost_Easting -9.26629;


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{?query}
For example,,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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