Record Display for the EPA National Library Catalog

RECORD NUMBER: 24 OF 33

Main Title Simulation of water quality in streams and canals : theory and description of the QUAL-1 mathematical modeling system. /
CORP Author Texas Water Development Board. Systems Engineering Division.; Texas Water Development Board, Austin.
Publisher TWDB,
Year Published 1971
Report Number PB202975
Stock Number PB-202 975
OCLC Number 43305572
Additional Subjects ( Water quality ; Mathematical prediction) ; ( Rivers ; Mathematical models) ; ( Water resources ; Texas) ; Computerized simulation ; Input output routines ; Heat transfer ; Air water interactions ; Biochemical oxygen demand ; Dissolved gases ; Waste water ; Minerals ; Diffusion theory ; Tables(Data) ; FORTRAN ; QUAL-1 computer program ; FORTRAN 4 programming language
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EMBD MF PB 202 975 NRMRL/GWERD Library/Ada,OK 06/04/2004
NTIS  PB-202 975 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 2 microfiches (64 frames) : negative, illustrations ; 10 x 15 cm.
Abstract
The report presents the theory and description of the QUAL-I Mathematical Modeling System which is a set of interrelated quality routing models for predicting the temporal and spatial distribution of temperature, biochemical oxygen demand and dissolved oxygen, and conservative minerals within a segment of a river basin. The governing differential equation is solved by an implicit-finite-difference technique under the assumption that advection along the longitudinal axis of the stream is the primary mode of transport. Model application results are presented. (Author)