Comment calculer la pente topographique sur une carte ? Par Mme Ruault-Djerrab.

This video explains quickly and very clearly how to calculate the topographic slope on a map. To make this calculation, some prior knowledge is necessary: ​​knowing what are the contour lines, the equidistance and the scale of a map. All these notions are explained in my other videos (see links below). This video has been put online for beginners in geology, in particular in License 1 and 2 at the University, or for high school students in science. Useful links to my other videos: What is the equidistance of a map? :    • C'est quoi l'équidistance d'une carte ? Ex...   What is the scale of a map? :    • C'est quoi l'échelle d'une carte ? Explica...   For more details on sedimentary geology, consult the site: http://djerrab-geologie-guelma.e-mons... To see all the photos featured in my videos (and more), check out my new photo site: https://adjerrab.wixsite.com/photo-ge...