SEISAN KENKYU
Online ISSN : 1881-2058
Print ISSN : 0037-105X
ISSN-L : 0037-105X
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Numerical Simulation of Long-term Changes in Water Quality in Deep Lakes
Daisuke KITAZAWA
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2011 Volume 63 Issue 1 Pages 65-68

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Abstract

The effects of global warming on the water quality and ecosystem of Lake Biwa were predicted by carrying out numerical simulations in the cases when atmospheric temperature increases by 5 oC and does not change in the following 100 years. As a result, the overturn of waters occurred every year since the increasing rate of water temperature at water bottom during the stratified seasons was larger than that at water surface. The decrease in dissolved oxygen concentration due to decreasing solubility caused the release of nutrients from sediments and eutrophication, resulting in the further decrease in dissolved oxygen concentration.[This abstract is not included in the PDF]

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© 2011 Institute of Industrial Science The University of Tokyo
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