Comparison of two multivariate classification models for contamination event detection in water quality time series

2014 ◽  
Vol 64 (5) ◽  
pp. 558-566 ◽  
Author(s):  
Nurit Oliker ◽  
Avi Ostfeld
Keyword(s):  
Water Quality ◽  
Time Series ◽  
Event Detection ◽  
Classification Models ◽  
Multivariate Classification ◽  
Contamination Event

Contamination event detection using multiple types of conventional water quality sensors in source water

2014 ◽  
Vol 16 (8) ◽  
pp. 2028-2038 ◽  
Author(s):  
Shuming Liu ◽  
Han Che ◽  
Kate Smith ◽  
Lei Chen
Keyword(s):  
Water Quality ◽  
Event Detection ◽  
Source Water ◽  
Contamination Event ◽  
Water Quality Sensors ◽  
Correlative Relationship

A correlative relationship between multiple types of conventional sensors can be used to detect a contamination event.

scholarly journals Event Detection from Water Quality Time Series

2007 ◽  
Author(s):  
Sean A. McKenna ◽  
David Hart ◽  
Katherine Klise ◽  
Victoria Cruz ◽  
Mark Wilson
Keyword(s):  
Water Quality ◽  
Time Series ◽  
Event Detection

Event Detection in Water Distribution Systems from Multivariate Water Quality Time Series

2012 ◽  
Vol 46 (15) ◽  
pp. 8212-8219 ◽  
Author(s):  
Lina Perelman ◽  
Jonathan Arad ◽  
Mashor Housh ◽  
Avi Ostfeld
Keyword(s):  
Water Quality ◽  
Time Series ◽  
Event Detection ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems

Algae Migration Characteristics in Fresh Water Red Tide

1993 ◽  
Vol 28 (7) ◽  
pp. 197-201 ◽  
Author(s):  
Dunchun Wang ◽  
Isao Somiya ◽  
Shigeo Fujii
Keyword(s):  
Water Quality ◽  
Time Series ◽  
Fresh Water ◽  
Field Data ◽  
Field Survey ◽  
Red Tide ◽  
Bottom Layer ◽  
Total Biomass ◽  
Quality Indices ◽  
Vertical Distributions

To understand the algae migration characteristics in the fresh water red tide, we performed a field survey in the Shorenji Reservoir located in Nabari City, Japan. From the analysis of the field data, it is found that the patterns of vertical distributions of the indices representing biomass are very different in the morning and the afternoon. Since some water quality indices have reverse fluctuations between the surface and the bottom layer in respect of the time series changes and the total biomass of the vertical water column is relatively constant, it is concluded that vertical and daily biomass variation of red tide alga is caused by its daily migration, that is the movement from the bottom layer to the surface in the morning and the reverse movement in the afternoon.

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