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ERDDAP > tabledap > Make A Graph ?

Institution:  U.S. Geological Survey   (Dataset ID: pswl-oly)
Range: longitude = -122.90534 to -122.90534°E, latitude = 47.051243 to 47.051243°N, depth = 0.23206428 to 6.6004786m, time = 2018-11-05T08:00:00Z to 2019-12-22T04:45:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5414048e+9, 1.5769899e+9;
    String axis "T";
    String calendar "proleptic_gregorian";
    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";
  timestamp {
    Int32 actual_range -2147483648, 1576961100;
    String ioos_category "Time";
    String long_name "Seconds since 1970-01-01T00:00:00";
    String units "s";
  temperature {
    Float64 _FillValue NaN;
    Float64 actual_range 6.692, 19.99;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Temperature";
    String long_name "Sea Water Temperature";
    String standard_name "sea_water_temperature";
    String units "degree_C";
  depthtmp {
    Float64 _FillValue NaN;
    Float64 actual_range 0.23530560000000003, 6.7488816;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String standard_name "depth";
  pressure {
    Float64 _FillValue NaN;
    Float64 actual_range 2.3080009105086385, 66.18402610966368;
    String ioos_category "Pressure";
    String long_name "Pressure of water at pressure transducer";
    String units "kilopascal";
  conductivity {
    Float64 _FillValue NaN;
    Float64 actual_range 9405.7, 40088.22;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum 30.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Electrical Conductivity";
    String standard_name "sea_water_electrical_conductivity";
    String units "uS cm-1";
  salinity {
    Float64 _FillValue NaN;
    Float64 actual_range 7.525319999742887, 30.29626243470183;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Practical Salinity";
    String standard_name "sea_water_practical_salinity";
    String units "1";
  density {
    Float64 _FillValue NaN;
    Float64 actual_range 1.005583978971492, 1.023079253460106;
    Float64 colorBarMaximum 28.0;
    Float64 colorBarMinimum 20.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Density";
    String standard_name "sea_water_density";
    String units "kg m-3";
  g {
    Float64 _FillValue NaN;
    Float64 actual_range 9.808863917161679, 9.808863917161679;
    String ioos_category "Unknown";
    String long_name "Gravitational acceleration";
    String units "m s-2";
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range 0.23206428431988918, 6.600478682435821;
    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";
  waterlevel {
    Float64 _FillValue NaN;
    Float64 actual_range -2.4269357156801106, 3.941478682435821;
    String ioos_category "Sea Level";
    String long_name "Water level relative to NAVD88";
    String units "m";
  lpwaterlevel {
    Float64 _FillValue NaN;
    Float64 actual_range -0.6597514884233499, 3.3691233668244513;
    String ioos_category "Sea Level";
    String long_name "Low-pass filtered water level relative to NAVD88. 5th order Butterworth filter with cutoff frequency of 1/48h.";
    String units "m";
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 47.0512439, 47.0512439;
    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 -122.9053391, -122.9053391;
    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";
  feature_type_instance {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "station code";
    String _NCProperties "version=2,netcdf=4.7.1,hdf5=1.10.5";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "feature_type_instance, latitude, longitude";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_name "U.S. Geological Survey";
    String creator_url "";
    Float64 Easternmost_Easting -122.9053391;
    Float64 elev_offset -2.659;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 47.0512439;
    Float64 geospatial_lat_min 47.0512439;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -122.9053391;
    Float64 geospatial_lon_min -122.9053391;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 6.600478682435821;
    Float64 geospatial_vertical_min 0.23206428431988918;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"Generated using
2024-07-19T07:06:27Z (local files)
    String infoUrl "";
    String institution "U.S. Geological Survey";
    String keywords "01t00, 1/48h, 1970-01-01t00, 48h, 5th, acceleration, butterworth, code, conductivity, cutoff, data, density, depth, depthtmp, earth, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Conductivity, Earth Science > Oceans > Salinity/Density > Density, Earth Science > Oceans > Salinity/Density > Salinity, electrical, feature_type_instance, fifth, filter, filtered, frequency, geological, gravitational, identifier, latitude, level, longitude, low, low-pass, lpwaterlevel, navd88, ocean, oceans, olympia, order, pass, practical, pressure, provisional, pswl, relative, revision, salinity, science, sea, sea level, sea_water_density, sea_water_electrical_conductivity, sea_water_practical_salinity, sea_water_temperature, seawater, seconds, since, station, subject, survey, temperature, time, timestamp, transducer, US, water, waterlevel, with";
    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 naming_authority "gov.usgs.cmgp";
    Float64 Northernmost_Northing 47.0512439;
    String original_folder "pswl";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 47.0512439;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "g, latitude, longitude, feature_type_instance";
    String testOutOfDate "now-1day";
    String time_coverage_end "2019-12-22T04:45:00Z";
    String time_coverage_start "2018-11-05T08:00:00Z";
    Float64 Westernmost_Easting -122.9053391;


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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