Analysis of Snow Depth, Snow Melt and Runoff based on Photogrammetry

Abstract

This paper presents the analysis of snow depth, snow melt and runoff using aerial photographs.In the first place, the natural topographic features were divided into several waves of different wave length, using a digital terrain model. Then, the relations of the local topographic and climate components to the snow depth and the amount of snow melting were examined.In the next place, the runoff analysis was made by the following method : The direction and the period of flow of snow melt were expressed by vectors using a vector model of the whole basin, from which the course and the total time of flow between a given point and the outlet of river were deduced.