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OLS Field Name OLS Field Data
Main Title Generalized Initial Conditions for the Stochastic Model for Pollution and Dissolved Oxygen in Streams.
Author Moushegia, Richard H. ; Krutchkof, Richard G. ;
CORP Author Virginia Polytechnic Inst., Blacksburg. Water Resources Research Center.
Year Published 1969
Report Number Bull-28; OWRR-A-027-VA; 01775,; 16090-08/69
Stock Number PB-188 095
Additional Subjects ( Water pollution ; Mathematical models) ; ( Rivers ; Oxygen) ; Initial value problems ; Probability density functions ; Statistical distributions ; Stochastic processes ; Mathematical prediction ; Computer programs ; Biochemical oxygen demand ; Dissolved oxygen ; Dissolved gases
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-188 095 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 93p
Abstract A stochastic model was developed and used to predict the biochemical oxygen demand (BOD) and dissloved oxygen (DO) concentrations at several points downstream of a waste discharge. The model used provided a joint density function for both pollution and and dissolved oxygen with given initial conditions. The initial conditions were generalized to permit the output for one stream segment to be the initial conditions for the succeeding stream segment. Interest was focused on the measurement of the marginal distribution of BOD and DO along a stream stretch whose parameters may change at known locations. A computer program assisted in the calculations to obtain marginal distributions. The program allowed for changes in parameter values between one stream segment and the next and could predict distributions for any intermediate locations along the river. The application of this study lay in the analysis of an entire stream stretch to determine if it was healthy for the users within certain preset probabilistic standards. (Author)
PUB Date Free Form Aug 69,
Category Codes 8H; 13B; 903; 911
NTIS Prices PC A05 MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326510618
Origin NTIS
Type CAT