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RESERVOIR SEDIMENTATION WITH RANDOM DEPOSITS 1
Author(s) -
Phien Huynh Ngoc,
Arbhabhirama Anat,
Chenyapanich Pinit
Publication year - 1980
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1980.tb02493.x
Subject(s) - sediment , sedimentation , sequence (biology) , hydrology (agriculture) , transformation (genetics) , distribution (mathematics) , volume (thermodynamics) , geology , soil science , geomorphology , mathematics , geotechnical engineering , chemistry , physics , mathematical analysis , biochemistry , quantum mechanics , gene
The accumulated volume of sediment in reservoris is investigated in this paper using a statistical method. Based on the fact that sediment load and river discharge are highly correlated, a relationship between them is established. With longer records of stream flows, this relationship will serve either as a data generation mechanism which produces a sediment S‐sequence having the same length as the river discharge Q‐sequence, or as a transformation of variables, by which the distribution of S is transferred from the distribution of Q. The mean and variance of the sediment volume accumulated in the design life of a reservoir are then derived, assuming the S‐ and Q‐sequences follow the log‐normal distribution. Finally, case studies are given for illustrating the proposed method.