WSP00277

• File Number: 8210.470
• Description: Pacific Southwest Interagency Committee
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 12/1/1967
• Author: Unknown
• Title: Report of the Water Management Technical Subcommittee - Glossary of Water Management Terms - December 1967
• Water Supply Pro - Doc Type: Report/Study

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PACIFIC SOUTHWEST INTER-AGENCY COOI~

SEDn.m:N'l' LOAD--The total sed:lment, including bedload, being moved by
a stream at a specified cross section.

SEDn.m:N'l' STORAGE--The, accUlllUla.tion, in a reservoir, of sed:lment that
; would be carried downstream in the absence of the reservoir.

SE;EPAGE--The gradual movement or oozing of a fluid in to or out of
, a porous medium.

SEPARABLE COSTS--Costs which could beamitted from total project cost if
one purpose of the project should be deleted.

SERVICE AREA--The geographic area served by the function or functions
under consideration.

S:(MULATIOl'I ANALYSIS--A study of a physical system by use of synthetic
data that is assumed to reasonab~ approx:lma.te the true, though
unknown, data. See STOCHASTIC HYDROLOOY.

SmGLE-PORPOSE STUDY--A study made to detem1ne what features would be
necessary to s~ any single function of those included in a
multipurpose project. These studies are done pr:tmariJ.y to facilitate
cost allocation.

SQIL CLASSlFICATION--The systEllllatic arrangement of soils into groups or
categories on the basis of their characteristics.

SP.ECIFIC COSTS--Costs of facilities that exclusively serve only one
project purpose. '

STAGE--The vertical distance of the water surface in a lake, stream,
or estuary above or below a fixed ;reference point.

S~ PROJECT FLOOD-,-A hypothetical flood representing the most
critical 1'lood runoff volume and peak discharge that may be expected
fran the most severe canbination 01' meteorologic and hydrologic
conditions that are considered reasonab~ characteristic for the
hydrologic region involved, excluding extremeJ.;y rare canbinations.

STOCHASTIC HYDROLOOY--The manipulation of statistical' characteristics
01' hydrologic variables to solve hydrologic problems, on the basis
of the stochastic properties of the variables. A stochastic variable
is a chance variable or one whose value is determined by a probability
function. Thus, stochastic hydrOlogy utilizes the statistical parameters
of' a sample to provide a description of a hypothetical parent population
fran which other samples o1'anydesired length can be drawn.