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Dataset Title:  Monthly freshwater runoffs of the St. Lawrence at the height of Quebec city |
Débits mensuels d'eau douce du Saint-Laurent à hauteur de la ville de Québec
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Institution:  Fisheries and Oceans Canada | Pêches et Océans Canada   (Dataset ID: mpoDebitsEauMensuels)
Range: time = 1955-01-01 to 2024-03-01
Information:  Summary ? | License ? | Metadata | Background (external link) | Data Access Form | Files
 
Graph Type:  ?
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Y Axis: 
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Constraints ? Optional
Constraint #1 ?
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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.")
 
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   Minimum:   Maximum:   N Sections: 
Y Axis Minimum:   Maximum:   
 
(Please be patient. It may take a while to get the data.)
 
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Then set the File Type: (File Type information)
and
or view the URL:
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    [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 -4.733856e+8, 1.7092512e+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";
  }
  runoffs {
    Float32 _FillValue NaN;
    Float32 actual_range 7822.0, 25752.0;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String long_name "freshwater_runoffs";
    String units "m^3/s";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.10, ACDD-1.3";
    String creator_name "Denis Lefaivre";
    String creator_type "institution";
    String defaultGraphQuery "lines";
    String history 
"2024-04-14T04:35:58Z (local files)
2024-04-14T04:35:58Z https://erddap.ogsl.ca/tabledap/mpoDebitsEauMensuels.das";
    String infoUrl "https://catalogue.ogsl.ca/fr/dataset/ca-cioos_84a17ffc-4898-4261-94de-4a5ea2a9258d";
    String institution "Fisheries and Oceans Canada | Pêches et Océans Canada";
    String institution_identifier "https://ror.org/02qa1x782";
    String keywords "freshwater, runoffs";
    String keywords_fr "débits, eau douce";
    String license "Open Government Licence - Canada | Licence du gouvernement ouvert - Canada";
    String licenseUrl "https://open.canada.ca/en/open-government-licence-canada";
    String related_datasets "https://erddap.ogsl.ca/erddap/tabledap/mpoDebitsEauQuotidiens.html";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "This dataset presents the monthly mean runoff estimated using an empirical relationship between the St. Lawrence River discharge and the water-level at Neuville with the Bourgault and Koutitonsky (1999) method. The uncertainty is +/- 2100 m3/s at 95%. | Ce jeu de données présente les débits mensuel d'eau douce calculés à partir d'une relation empirique entre le débit du fleuve Saint-Laurent et le niveau d'eau à Neuville  selon la méthode de Bourgault et Koutitonsky (1999). L'incertitude est de +/- 2100 m3/s à 95%.";
    String time_coverage_end "2024-03-01";
    String time_coverage_start "1955-01-01";
    String title "Monthly freshwater runoffs of the St. Lawrence at the height of Quebec city | Débits mensuels d'eau douce du Saint-Laurent à hauteur de la ville de Québec";
    String update_frequency "Monthly | Mensuel";
  }
}

 

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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