PMpitoisuus

Pm-pitoisuus is a Finnish term used in the field of hydrology and water resources management. It refers to the static or dynamic water content or storage in a water body, such as a lake, river, or groundwater system. The term is derived from the Finnish words "pmm" meaning pressure head, and "pitoisuus" meaning concentration or content.

In hydrology, pm-pitoisuus is used to describe the volume of water in a particular body of water, usually expressed in cubic meters or megaliters. It can be measured directly from measurements of water level and the cross-sectional area of the water body, or by calculating the storage volume using formulae that account for factors like the water table and saturation level.

Pm-pitoisuus is an important parameter in various water management applications. It is used to assess water resources availability, monitor water quality, and predict water levels and flows during floods or droughts. Hydrologists and water resource managers also rely on pm-pitoisuus data to develop models that simulate the behavior of water systems under different climate and land use scenarios.

In Finland, pm-pitoisuus is often used in conjuction with other indicators, such as precipitation, evaporation, and snow cover, to gain insights into the regional hydrological cycle. More widely, the concept of pm-pitoisuus can be applied in various hydrological contexts, including the management of reservoirs, modeling of water scarcity and FI alarms of droughts, and the assessment of water availability for agriculture and other human uses.