Now that we have a basic understanding how the HTTP request to retrieve imagery from a WMS, we can begin exploring the interface Google Maps exposes for its map types, specifically the and. It rose to prominence when Google Maps adopted it in 2005. Web Mercator, Google Web Mercator, Spherical Mercator, WGS 84 Web Mercator or WGS 84/Pseudo-Mercator is a variant of the Mercator projection and is the de facto standard for Web mapping applications. Using a collection of satellite-based observations, scientists and visualizers stitched together months of observations of the land surface, oceans, sea ice, and clouds into a seamless, true-color mosaic of every square kilometer (0.386 square mile) of our planet. In the above request we are using EPSG:3857, also known as web mercator. This spectacular Blue Marble image is the most detailed true-color image of the entire Earth to date.

It is important to note that the coordinates for the BBOX parameter must be in the coordinate reference system specified by the spatial reference system(SRS).

Click Save or Save and Attach to add it to the drawing. Select a layer from the Available Layers list and click Add to map. Type in a URL, or click the Servers button and select a service from the server list.

Wms url world