Sacramento soil moisture accounting model

 Simulation process, such as the Sacramento model, should understand the physical. Definition of Tension Water and Free Water. The simplest way to ... of residual moisture was natural to any particular environment. This soil moisture accounting, this moisture can be considered as permanently resident.


Saline Intrusion

 The saltwater infiltration of freshwater aquifers in coastal areas, when groundwater is withdrawn faster than it is being recharged.



 The concentration of dissolved salt in a given volume of water is called salinity.

Salt marsh

 Salt marsh during low tide, mean low tide, high tide and very high tide (spring tide). A salt marsh or salt marsh, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open salt water or brackish water that is regularly flooded by the tides.

Salt Water

 Water that has a high level of salt, such as in oceans and seas.

Saltwater intrusion

 Saltwater intrusion is the movement of saline water into freshwater aquifers, which can lead to contamination of drinking water sources and other consequences. Saltwater intrusion occurs naturally to some degree in most coastal aquifers, owing to the hydraulic connection between groundwater and seawater.


Sanitary landfill

 Sanitary landfills are sites where waste is isolated from the environment until it is safe. 

Sanitary sewers

 Underground pipes that carry off only domestic or industrial waste, not storm water.

Saturated air

Saturated air that contains the maximum amount of water vapour that is possible at the given temperature and pressure, i.e. air in which the relative humidity is 100%.

Saturated zone

 The zone below the Water Table in which all pore spaces are filled with ground water. The water table is the top of the zone of saturation in an unconfined aquifer. Also referred to as the Phreatic Zone.