Effectiveness of Applying Morning Time Water Temperature Gradient for Evaluating Installed Aerating Circulation Facilities

Abstract

The effect of aerating circulation has been evaluated by water temperature gradient from surface layer to middle layer in the daytime. But it has not given an accurate evaluation of adequacy of water circulation induced by aerating, because the thermocline was extremely affected by solar energy. With the least affect from solar energy, water temperature gradient in the morning time gave a more distinct evaluation of adequacy of water circulation in the reservoir. In addition to that, a clear relationship between the gradient and flourish of Cyanobacteria was come out.