An OWL ontology for modelling groundwater Systems
A groundwater inhibitor not storing or conducting any water. No groundwaterflow in this layer.
An underground layer of rock, which is capable of storing and conducting groundwater.
A groundwater inhibitor that restricts the flow and storage of groundwater. It has a low permeability, but it does allow a low groundwaterflow.
Sand with a hydraulic conductivity of around 10^-3 m/s.
A confined groundwater body is a groundwater body. Groundwater inhibitors are both above and below the aquifer holding the groundwater body, causing it to be under pressure so that when the aquifer is penetrated by a well, the water will rise above the top of the aquifer.
Water leaving the groundwater system by evaporation.
Sand with a hydraulic conductivity of around 10^-4 to 10^-5 m/s.
An aquifer consisting of solid rock which has significant fractures and and fissures trough which the groundwater flows.
A distinct volume of groundwater within an aquifer or system of aquifers, which is hydraulically isolated from nearby groundwater bodies.
Water entering the groundwater system by groundwater flow from a neighbouring groundwater system. Inflow from surface water bodies is also considered here.
An underground rock/soil layer inhibiting the flow and the storage of groundwater.
Water leaving the groundwater system by groundwater flow, draining into another groundwater system, a surface water body or to the surface as a spring.
A component of the hydrolocial cycle. Describes a certain flux of water in the system.
Infiltration from the surface. Mainly water from precipitation infiltrating into the groundwater system.
An aquifer consisting of karstified carbonate rock. The groundwater flows through karsts.
Sand with a hydraulic conductivity of around 10^-3 to 10^-4 m/s.
An aquifer consisting of unconsolidated rock or solid rock of which the pores are flown through by water. Porous aquifers typically occur in sand and sandstone.
A soil type with a high effective porosity.
A granular material composed of finely divided mineral particles.Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt.
A granular material of a size between sand and clay, composed mostly of broken grains of quartz.
Sand with a hydraulic conductivity of around 10^-5 to 10^-6 m/s. Containing a certain amount of silt.
An underground layer of soil / rock.
A type of soil with certain properties.
Solid rock that may be impermeable or fractured.
Pore volume available for groundwater flow.
A property of the soil.