ERDDAP
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Easier access to data
| Dataset Title: | Hourly Freshwater Discharge Data of the St. Lawrence River at Quebec City Calculated by the Qmec Model | Débits horaires d'eau douce du fleuve Saint- Laurent à la hauteur de la ville de Québec calculé par le modèle Qmec 
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| Institution: | Institut des sciences de la mer de Rimouski (Dataset ID: ismerDebitsQuebecHoraire) |
| Range: | time = 1962-01-01T05:00:00Z to 2025-01-01T04:00:00Z |
| Information: | Summary
| License
| Metadata
| Background
| Data Access Form
| Files
|
![[The graph you specified. Please be patient.]](https://erddap.cioos.ca/erddap/tabledap/ismerDebitsQuebecHoraire.png?time,Discharge&time%3E=2024-12-17T04%3A00%3A00Z&.draw=lines&.color=0x000000&.bgColor=0xffffffff)
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Attributes {
s {
time {
String _CoordinateAxisType "Time";
Float64 actual_range -2.524428e+8, 1.735704e+9;
String axis "T";
String coverage_content_type "coordinate";
String ioos_category "Time";
String long_name "Time";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String time_precision "1970-01-01T00:00:00Z";
String units "seconds since 1970-01-01T00:00:00Z";
}
Discharge {
Int32 actual_range -67600, 62300;
String comment "The accuracy of the discharge calculation is in the order of the hundred m3/s";
String comment_fr "La précision du calcul du débit est de l'ordre de la centaine de m3/s";
String long_name "Hourly discharge";
Int32 missing_value 2147483647;
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/RFDSCH03/";
String nerc_standard_name "riverine_discharge_of_water";
String standard_name "riverine_discharge_of_water_by_water_level_gauge_and_calculation_from_level";
String units "m3 s-1";
}
Water_level_Neuville {
Float32 actual_range -0.73, 6.48;
String latitude "46.6965";
String long_name "Water level";
String longitude "-71.572833";
Float32 missing_value NaN;
String units "m";
}
Water_level_St_Francois {
Float32 actual_range -0.61, 7.69;
String latitude "46.9965";
String long_name "Water level";
String longitude "-70.808167";
Float32 missing_value NaN;
String units "m";
}
}
NC_GLOBAL {
String cdm_data_type "Other";
String Conventions "COARDS, CF-1.11, ACDD-1.3, NCCSV-1.2";
String creator_email "daniel_bourgault@uqar.ca";
String creator_name "Daniel Bourgault";
String creator_type "person";
String defaultDataQuery "&time>=min(time)";
String defaultGraphQuery "&time>=max(time)-15days&.draw=lines&.bgColor=0xffffffff";
String history
"Date and time were transformed to ISO8601 format and converted from Eastern Standard Time to UTC
2026-08-18T00:42:50Z (local files)
2026-08-18T00:42:50Z http://erddap.cioos.ca/tabledap/ismerDebitsQuebecHoraire.das";
String infoUrl "https://www.ismer.ca/";
String institution "Institut des sciences de la mer de Rimouski";
String keywords "discharge, freshwater, Quebec City, St. Lawrence River";
String keywords_fr "débit, Rivière Saint-Laurent, eau douce, ville de Québec";
String license "Creative Commons Attribution 4.0 International license CC-BY 4.0.";
String licenseUrl "https://creativecommons.org/licenses/by/4.0/";
String model_boundary_east "Saint-François I.O. - station 03100";
String model_boundary_east_info "https://www.marees.gc.ca/fr/stations/03100";
String model_boundary_east_latitude "46.9965";
String model_boundary_east_longitude "-70.808167";
String model_boundary_west "Neuville - Station 03280";
String model_boundary_west_info "https://www.marees.gc.ca/fr/stations/03280";
String model_boundary_west_latitude "46.6965";
String model_boundary_west_longitude "-71.572833";
String model_reference_1
"Bourgault D and Matte P (2020a) A physically-based method for real-time monitoring of tidal river discharges from water level observations
with an application to the St. Lawrence River Journal of Geophysical Research – Oceans 125 e2019JC015992\"";
String model_reference_1_doi "https://doi.org/10.1029/2019JC015992";
String model_reference_2 "Bourgault D and Matte P (2020b) Qmec : a Matlab code to compute tidal river discharge from water level [Source Code]";
String model_reference_2_doi "https://doi.org/10.24433/CO.7299598.v2";
String nerc_standard_name_vocabulary "BODC Parameter Usage Vocabulary v1226";
String related_dataset "https://erddap.ogsl.ca/erddap/tabledap/ismerDebitsQuebecJournalier.html";
String related_identifiers_1 "https://doi.org/10.1029/2019JC015992";
String related_identifiers_1_title "Bourgault D and Matte P (2020a) A physically-based method for real-time monitoring of tidal river discharges from water level observations with an application to the St. Lawrence River Journal of Geophysical Research – Oceans 125 e2019JC015992";
String related_identifiers_2 "https://doi.org/10.24433/CO.7299598.v2";
String related_identifiers_2_title "Bourgault D and Matte P (2020b) Qmec : a Matlab code to compute tidal river discharge from water level [Source Code]";
String revision_date "2025-04-24";
String sourceUrl "(local files)";
String standard_name_vocabulary "CF Standard Name Table v84";
String summary "Hourly freshwater discharge data of the St. Lawrence River at Quebec City (river transect where discharge is calculated: 46.7779°N,-71.2409°E to 46.7695°N,-71.2216°E) as computed by the hydrodynamic model called Qmec developed by Bourgault and Matte (2020a, 2020b).";
String summary_fr "Débits horaires d'eau douce du Saint-Laurent au niveau de la ville de Québec (transecte de rivière où le débit est calculé : 46.7779°N,-71.2409°E to 46.7695°N,-71.2216°E) déterminé par le modèle hydrodynamique Qmec développé par Bourgault et Matte (2020a, 2020b).";
String time_coverage_end "2025-01-01T04:00:00Z";
String time_coverage_start "1962-01-01T05:00:00Z";
String title "Hourly Freshwater Discharge Data of the St. Lawrence River at Quebec City Calculated by the Qmec Model | Débits horaires d'eau douce du fleuve Saint-Laurent à la hauteur de la ville de Québec calculé par le modèle Qmec";
String version "2";
}
}
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selection constraints.
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.