Geographia Technica, Issue no. 1/2011, pp. 57-71

FRÉDERIC DUMAY, IMPACT OF THE PARAMETERS OF A MORPHOLOGICAL AND MORPHOMETRIC OF MEGA-OBSTACLE ON THE FIELD SHELTER

Boualem REMINI, Monique MAINGUET

ABSTRACT: The morphometric parameters of topographic barriers have an influence on the formation of the shelter area in the wake downwind of the obstacle. This is based on Meteosat images where the wind flow around the rock formations of the Sahara and Sahel is clearly visible. To support this assertion, correlations between the area of shelter and the following parameters: area, shape, elongation, flattening, faces the wind and the front of the obstacle to the wind was conducted topographic. It appears that the altitude of the massif has no significant effect on the area of shelter.


Keywords: Sahara-Sahel, topographic obstacle, wind circulation, morphometric parameters, shelter area, Meteosat satellite images .

Full article here