depression storage

depression storage

[di′presh·ən ‚stȯr·ij]
(hydrology)
Water retained in puddles, ditches, and other depressions in the surface of the ground.

depression storage

The quantity of storm water that is lost as a result of minor surface depressions in the ground.
Mentioned in ?
References in periodicals archive ?
imp]--impervious EMC--event mean concentration depression storage [D.
Surface depression storage includes impervious ([D.
The depression storage used in this model is the average of dry and wet weather, which is determined as 0.
Water inputs to the root zone include effective rainfall (the fraction of total rain that infiltrates the soil after losses to leaf interception, surface runoff and depression storage, and evaporation) and irrigation (vineyard only).
Effective rainfall: Fraction of total rain that infiltrates the soil after losses to leaf interception, surface runoff, depression storage and evaporation.
Water inputs to the root zone: Include effective rainfall (the fraction of total rain that infiltrates the soil after losses to leaf interception, surface runoff, depression storage, and evaporation) and irrigation (in vineyards only in this study).
The rough treatment had 5% surface cover, had previously been cultivated across slope with a tractor-drawn chisel plough, and had received 27 mm of rainfall since cultivation, but furrows still contained substantial depression storage.
Volume of depression storage was calculated using a modified algorithm from Moore and Larson (1979) and was the volume held on the plot when runoff from the whole plot reached the outlet.
SWIM runs down the capacity of depression storage with cumulative rainfall to a minimum value at a specified rate.
The model works with basic hydrologic parameters such as catchment area, percent of impervious area, depression storage for impervious areas, and the Soil Conservation Service (SCS) number for pervious areas.
The hydrologic parameters in the P8 model were adjusted using the area's known catchment area, percent of impervious area, depression storage, and the soil type.
That is, longer storm events tend to minimize the effects of depression storage and to increase runoff from previous areas.