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Stochastic variation of water quality of the Passaic River
Author(s) -
Mehta B. M.,
Ahlert R. C.,
Yu S. L.
Publication year - 1975
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr011i002p00300
Subject(s) - autoregressive integrated moving average , streamflow , series (stratigraphy) , environmental science , water quality , autoregressive model , hydrology (agriculture) , time series , biochemical oxygen demand , statistics , mathematics , geology , ecology , drainage basin , geography , environmental engineering , geotechnical engineering , chemical oxygen demand , cartography , biology , paleontology , wastewater
The stochastic structures of some water quality time series were examined. These time series include daily observations in streamflow, water temperature, BOD, and dissolved oxygen deficit. Autoregressive integrated moving average (Arima) models were used to describe the random components of these time series. It was found that except for the BOD the Arima models could provide very satisfactory results.