scholarly journals Trend analysis of selected water-quality data associated with salinity-control projects in the Grand Valley, in the lower Gunnison River basin, and at Meeker Dome, western Colorado

1996 ◽  
Keyword(s):  
Water Quality ◽  
Trend Analysis ◽  
River Basin ◽  
Quality Data ◽  
Water Quality Data ◽  
Salinity Control ◽  
Western Colorado

Techniques of trend analysis for monthly water-quality data

1981 ◽  
Author(s):  
Robert M. Hirsch ◽  
James Richard Slack ◽  
Richard A. Smith
Keyword(s):  
Water Quality ◽  
Trend Analysis ◽  
Quality Data ◽  
Water Quality Data

Compilation of water-quality data for Pueblo Reservoir and the upper Arkansas River Basin, Colorado, 1985-87

1991 ◽  
Author(s):  
Patrick Edelmann ◽  
Julie Altamore Scaplo ◽  
Don Anthony Colalancia ◽  
Brian B. Elson
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Quality Data ◽  
Arkansas River ◽  
Water Quality Data

Development of Dialog System Model for Eutrophication Control between Discharging River Basin and Receiving Water Body – Case Study of Lake Sagami (Japan)

1989 ◽  
Vol 21 (12) ◽  
pp. 1821-1824
Author(s):  
M. Suzuki ◽  
K. Chihara ◽  
M. Okada ◽  
H. Kawashima ◽  
S. Hoshino
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Expert System ◽  
River Basin ◽  
Water Body ◽  
Water Bodies ◽  
Quality Data ◽  
Pollution Load ◽  
Water Quality Data ◽  
Receiving Water

A computer program based on expert system software was developed and proposed as a prototype model for water management to control eutrophication problems in receiving water bodies (Suzuki etal., 1988). The system has several expert functions: 1. data input and estimation of pollution load generated and discharged in the river watershed; 2. estimation of pollution load run-off entering rivers; 3. estimation of water quality of receiving water bodies, such as lakes; and 4. assisting man-machine dialog operation. The program can be used with MS-DOS BASIC and assembler in a 16 bit personal computer. Five spread sheets are utilized in calculation and summation of the pollutant load, using multi-windows. Partial differential equations for an ecological model for simulation of self-purification in shallow rivers and simulation of seasonal variations of water quality in a lake were converted to computer programs and included in the expert system. The simulated results of water quality are shown on the monitor graphically. In this study, the expert system thus developed was used to estimate the present state of one typical polluted river basin. The river was the Katsura, which flows into Lake Sagami, a lake dammed for water supply. Data which had been actually measured were compared with the simulated water quality data, and good agreement was found. This type of expert system is expected to be useful for water management of a closed water body.

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