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 the 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 two satellites (AQUA and VIIRS) are still active and collect daily data.
NOTE OF USE: The gridded data are available for viewing and downloading via the ERDDAP platform, and the original non-gridded files are included in CSV format in the resources.
This dataset is the first version of the model. To access later versions, please refer to this link.
This project is part of the Coastal Environmental Baseline Program Initiative under the Oceans Protection Plan of Fisheries and Oceans Canada.
Data and resources
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A pdf that explains the algorithm in R to generate the dataPDF Open
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Gridded data that can be downloaded and viewed in ERDDAPERDDAP Open
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Gridded data that can be downloaded and viewed in ERDDAPERDDAP Open
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Gridded data that can be downloaded and viewed in ERDDAPERDDAP Open
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Gridded data that can be downloaded and viewed in ERDDAPERDDAP Open
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Gridded data that can be downloaded and viewed in ERDDAPERDDAP Open
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Gridded data that can be downloaded and viewed in ERDDAPERDDAP Open
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Original non-gridded CSV filesHTML Open
Additional information
| DOI | https://doi.org/10.26071/ogsl-5mak-9r77 |
|---|---|
| Temporal extent | 1997-09-04 – ongoing |
| Vertical extent | 0.0 – 0.0 m |
| Date (creation) | 1997-09-04 |
| Date (publication) | 2020-08-04 |
| Date (revision) | 2024-08-05 |
| Status | onGoing |
| Update frequency | asNeeded |
| Metadata language | fr |
| Projects | Coastal Environmental Baseline Program |
| License | Creative Commons Attribution 4.0 |
| Source metadata | ISO 19115 XML |
| Last updated | 2026-07-31 |
| Created | 2026-07-31 |
| API | package_show |