Chlorophyll-a data derived from satellite images for the Estuary and Gulf of St. Lawrence, since 1997 | Données de chlorophylle-a dérivées d'images satellitaires pour l'estuaire et le golfe du St-Laurent, depuis 1997
Fisheries and Oceans Canada | Pêches et Océans Canada
(Dataset ID: mpoChloroSatellitesCciSince1997v2)
This web page is using Leaflet
to display maps which are created on-the-fly by ERDDAP's
Web Map Server (WMS) version 1.3.0.
The control on the left of the map lets you zoom in (+) or out (-).
The control on the right manages the layers.
You can select different values for the data variable's dimension(s):
In theory, anyone can download, install, and use WMS client software. Some clients are:
To make a client work, you would install the software on your computer.
Then, you would enter the URL of the WMS service into the client.
For example, in ArcGIS (not yet fully working because it doesn't handle time!), use
"Arc Catalog : Add Service : Arc Catalog Servers Folder : GIS Servers : Add WMS Server".
In ERDDAP, this dataset has its own WMS service, which is located at
(Some WMS client programs don't want the ? at the end of that URL.)
of datasets available via WMS at this ERDDAP installation.
In practice, we haven't found any WMS clients that properly handle dimensions
other than longitude and latitude (e.g., time), a feature which is specified by the WMS
specification and which is utilized by most datasets in ERDDAP's WMS servers.
You may find that using
Make A Graph
and selecting the .kml file type (an OGC
standard) to load images into Google Earth provides
a good (non-WMS) map client.
of datasets with Make A Graph at this ERDDAP installation.
Web page authors can embed a WMS client in a web page. For the map above, ERDDAP is using
Leaflet, which is a very versatile WMS client.
Leaflet doesn't automatically deal with dimensions other than longitude and latitude
A person with a browser or a computer program can generate special WMS URLs. For example,