Hydrology

Stream whose water comes mainly from the aquifer it drains.

Rising of the groundwater level or of the piezometric surface due to a recharge after depletion.

Way in which the fluid particles move together during a flow.

Travel of rising water levels from upstream to downstream of a watercourse.

Value representing the force applied by water on a surface. We distinguish the hydrostatic pressure, exerted by water at rest, from the dynamic pressure, linked to a movement of water.

Study of precipitations, their nature (rain, snow, soft hail, fog), their distribution and the techniques used for their measurement. Rainfall, with the distribution of Earth's temperature, conditions terrestrial climates, the nature and functioning of ecosystems and their primary productivity. It is one of the factors conditioning the development of human societies.

Artificial rain event, representative of the local rainfall and to which it is possible to associate recurrence intervals.

Rain caused by the disturbance of a microphysical equilibrium occurring in clouds. Artificial rain can be produced by seeding clouds, with the introduction of ice-forming nucleuses of silver iodide.

Plain formed by the deposition of sediments from upstream erosion.

Science that studies lakes and open ponds, including hydrological phenomena, in relation with the environment.