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ERDDAP > tabledap > Make A Graph ?

Dataset Title:  Physical Ice Sampling Data Subscribe RSS
Institution:  Centre for Earth Observation Science, University of Manitoba   (Dataset ID: physical_ice_61b5_9ec0_ae15)
Range: longitude = -128.4651 to -128.4651°E, latitude = 74.35792 to 74.35792°N, time = 2010-09-27 to 2010-09-27
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
 
Graph Type:  ?
X Axis: 
Y Axis: 
Color: 
-1+1
 
Constraints ? Optional
Constraint #1 ?
Optional
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: 
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.)
 
Optional:
Then set the File Type: (File Type information)
and
or view the URL:
(Documentation / Bypass this form ? )
    Click on the map to specify a new center point. ?
Zoom: 
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 {
  Site_ID {
    Byte actual_range 1, 1;
    String ioos_category "Identifier";
    String long_name "Site ID";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 74.357918, 74.357918;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "Latitude_DecDeg";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -128.465103, -128.465103;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "Longitude_DecDeg";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.2855456e+9, 1.2855456e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date";
    String source_name "Date";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  Time_UTC {
    String ioos_category "Time";
    String long_name "Time UTC";
  }
  Depth_Top_cm {
    Byte actual_range 0, 55;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String standard_name "depth";
  }
  Depth_Bot_cm {
    Byte actual_range 5, 60;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String standard_name "depth";
  }
  SAL_PSU {
    Float32 _FillValue -9999.0;
    Float32 actual_range 0.0, 2.4;
    String ioos_category "Salinity";
    String long_name "SAL PSU";
  }
  Cond_mS_cm {
    Float32 _FillValue -9999.0;
    Float32 actual_range 0.01899, 3.46;
    String ioos_category "Unknown";
    String long_name "Cond M S Cm";
  }
  Temp_C {
    Float32 _FillValue -9999.0;
    Float32 actual_range 13.7, 14.1;
    String ioos_category "Unknown";
    String long_name "Temp C";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Centre for Earth Observation Science, University of Manitoba";
    String creator_type "institution";
    String creator_url "https://umanitoba.ca/ceos/";
    String data_curator "CanWIN";
    String data_curator_affiliation "Centre for Earth Observation Science";
    Float64 Easternmost_Easting -128.465103;
    String featureType "Point";
    Float64 geospatial_lat_max 74.357918;
    Float64 geospatial_lat_min 74.357918;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -128.465103;
    Float64 geospatial_lon_min -128.465103;
    String geospatial_lon_units "degrees_east";
    String history 
"2022-05-27T18:30:02Z (local files)
2022-05-27T18:30:02Z http://CanWINerddap.ad.umanitoba.ca/tabledap/physical_ice_61b5_9ec0_ae15.das";
    String infoUrl "https://umanitoba.ca/ceos/";
    String institution "Centre for Earth Observation Science, University of Manitoba";
    String keywords "altimetry, centre, cond, Cond_mS_cm, data, date, depth, Depth_Bot_cm, Depth_Top_cm, earth, ice, identifier, laboratory, latitude, longitude, manitoba, observation, physical, practical, psu, sal, SAL_PSU, salinity, sampling, satellite, science, site, Site_ID, Temp_C, temperature, time, Time_UTC, unit, university";
    String license "Creative Commons Attribution 4.0 International";
    Float64 Northernmost_Northing 74.357918;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 74.357918;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "Site_ID, latitude, longitude, time, Time_UTC";
    String summary "Physical Ice Sampling Data. Centre for Earth Observation Science, University of Manitoba data from a local source.";
    String time_coverage_end "2010-09-27";
    String time_coverage_start "2010-09-27";
    String title "Physical Ice Sampling Data";
    Float64 Westernmost_Easting -128.465103;
  }
}

 

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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