An Experiment in the Artificial Circulation of a Small Michigan Lake

摘要: Abstract The water of the hypolimnion West Lost Lake, a small Michigan trout lake, was pumped to surface with centrifugal pump and discharged into epilimnion during 10-day period in midsummer. volume displaced 20.7 percent lake volume. As pumping progressed thermocline lowered steadily thickness decreased. At conclusion pumping, had increased by 49.9 been surface. mean temperature remained essentially constant experiment. In 3-week following thermal conditions did not change appreciably. During conductivity alkalinity bottom water, dissolved oxygen rapidly. addition total phosphorus 2.8 micrograms per liter first 48 hours ...