Chlorophyll-a satellite data for the Estuary and the Gulf of St. Lawrence

The colour of seawater, seen from space, is used to estimate the chlorophyll content in the water. This pigment is an index of the biomass of microscopic algae. Compared to the Atlantic Ocean, the waters of the Estuary and Gulf of St. Lawrence are rather isolated and are strongly mixed with fresh water from many rivers.

The method for retrieving chlorophyll must be adapted to these specificities. This dataset presents the result of a method developed to find the concentration of chlorophyll-a derived by various satellites (5) in the estuary and the Gulf of St. Lawrence. The 2 satellites (AQUA and VIIRS) are still active and collect daily data.

This project is part of the Coastal Environmental Baseline Program Initiative under the Oceans Protection Plan of Fisheries and Oceans Canada.

USAGE NOTE : Some of the CSV files below are large. They have therefore been compressed to facilitate downloading. Once uncompressed, it is advised to open these files using programs such as Notepad ++, Sublime Text, MATLAB, RStudio, etc. Since Microsoft Excel is not suitable for the size of daily files (approximately 1,500,000 lines per file), it partially truncates the data.

Source identification:

Data

Fisheries And Oceans Canada. (2020). Données satellitaires de chlorophylle-a pour l'estuaire et le golfe du St-Laurent (Version 1) [Data set]. Observatoire Global du Saint-Laurent. https://doi.org/10.26071/OGSL-5MAK-9R77

Access and Use

Licence: Creative Commons Attribution 4.0

Data and Resources

Keywords

Dataset extent

Map data © OpenStreetMap contributors

Metadata Reference Date(s) June 23, 2022 (Creation)
June 23, 2022 (Revision)
Dataset Reference Date(s) August 04, 2020 (Creation)
January 05, 2022 (Revision)
Frequency of Update Quarterly

Responsible Party 1
Name
Julien Laliberté
Affiliation
Pêches et Océans Canada
Email
Julien.Laliberte@dfo-mpo.gc.ca
Role
  • Point of Contact
  • Resource Provider

Field Value
Title Chlorophyll-a satellite data for the Estuary and the Gulf of St. Lawrence
Description

The colour of seawater, seen from space, is used to estimate the chlorophyll content in the water. This pigment is an index of the biomass of microscopic algae. Compared to the Atlantic Ocean, the waters of the Estuary and Gulf of St. Lawrence are rather isolated and are strongly mixed with fresh water from many rivers.

The method for retrieving chlorophyll must be adapted to these specificities. This dataset presents the result of a method developed to find the concentration of chlorophyll-a derived by various satellites (5) in the estuary and the Gulf of St. Lawrence. The 2 satellites (AQUA and VIIRS) are still active and collect daily data.

This project is part of the Coastal Environmental Baseline Program Initiative under the Oceans Protection Plan of Fisheries and Oceans Canada.

USAGE NOTE : Some of the CSV files below are large. They have therefore been compressed to facilitate downloading. Once uncompressed, it is advised to open these files using programs such as Notepad ++, Sublime Text, MATLAB, RStudio, etc. Since Microsoft Excel is not suitable for the size of daily files (approximately 1,500,000 lines per file), it partially truncates the data.

Source identification:

Data

Fisheries And Oceans Canada. (2020). Données satellitaires de chlorophylle-a pour l'estuaire et le golfe du St-Laurent (Version 1) [Data set]. Observatoire Global du Saint-Laurent. https://doi.org/10.26071/OGSL-5MAK-9R77

Keywords
Ocean Variables Other
Scope Dataset
Status On Going
Resource Dates
Resource Date 1
Date
2020-08-04
Type
Creation
Resource Date 2
Date
2022-01-05
Type
Revision
Maintenance and update frequency Quarterly
Point of Contact
Point of Contact 1
Name
Julien Laliberté
Affiliation
Pêches et Océans Canada
Email
Julien.Laliberte@dfo-mpo.gc.ca
Role
Point of Contact
Responsible Party
Responsible Party 1
Name
Julien Laliberté
Affiliation
Pêches et Océans Canada
Email
Julien.Laliberte@dfo-mpo.gc.ca
Role
Resource Provider
Spatial Extent { "coordinates": [ [ [ -55.4, 51.9 ], [ -71.31, 51.9 ], [ -71.31, 45.19 ], [ -55.4, 45.19 ], [ -55.4, 51.9 ] ] ], "type": "Polygon" }
North Bounding Latitude 51.9
South Bounding Latitude 45.19
East Bounding Longitude -55.4
West Bounding Longitude -71.31
Temporal Extent
Begin
1997-09-04
Default Locale French
Citation identifier
Authority
doi.org
Code Space
10.26071
Code
/ogsl-5mak-9r77
Version
1
XML Metadata File Location https://ogsl.ca