Hebal , Aziz2025-06-012025-06-012024http://dspace.univ-skikda.dz:4000/handle/123456789/4830Precipitation includes all meteoric waters that fall on the surface of the earth, both in liquid and solid forms (drizzle, sleet, hail), and deposited or occult precipitations (dew, frost, hoarfrost...) caused by temperature or pressure changes. The most commonly used precipitation measurement devices are: – Pluviometers; – Pluviographs; – Snow gauges; – Radars. Point analysis concerns the series of measurements from a given point, i.e., a single station. From a series of point measurements, two types of graphs can be constructed: the rainfall height curve and the hyetogram.enPublication pédagogique