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…in the fluid can be used as a chemical tracer, and characteristics such as temperature are physical tracers. Tracers may be artificially introduced, like dye trac …hy to deduce flow patterns in the ocean. Common examples include potential temperature, salinity, and concentration of CFCs, tritium (introduced to the ocean surf

models to predict changes in mean annual global temperature (58, 108). global temperature and other climate variables, rising CO₂ can influence

…ercentage of the oxygen that would dissolve in the water at the prevailing temperature and salinity (both of which affect the solubility of oxygen in water; see…

…oxygen [[uptake]] by [[micro-organism]]s in a sample of water at a fixed [[temperature]] (20°C) and over a given period of time in the dark. The test generally t

…at the same time depends on the wind velocity, not higher than 5 Km/h, the temperature and the solar radiation. In Puerto Berrío, the mean annual evaporation is …st the following water quality parameters: BOD, COD, suspended solids, pH, temperature, dissolved oxygen, discharge, hydro-biological data and coliform bacteria.

…cal, chemical and biological variables. Some of the physical variables are temperature, color, turbidity and suspended solids; to the group of chemical variables …g the status quo of the surface water resources regarding five parameters: temperature, pH, chemical oxygen demand, dissolved oxygen and turbidity. Based on these

T: temperature …value of K1 was obtained from the BOD-DO model and was then corrected by a temperature coefficient of ?=1,08 (Thomann and Müller, 1987) as follows:

*Rounds, Stewart, Wood, Tamara, Lynch Dennis. Modeling Discharge, Temperature, and Water Quality in the Tualatin River, Oregon. Water United States Geolo