Recent climatic trends in nearshore water temperatures in the St. Lawrence Great Lakes
Article Abstract:
Recent climatic trends have been studied by assessing nearshore water temperatures in the St. Lawrence Great Lakes, and varying support was found to favor a warming trend at five of seven sites. In this region, the observational evidence for climatic change has been mostly limited to changes in lake-ice conditions. Long-term trends in water temperatures had not been found. The new approach was helpful for determining interyear variability in the timing of the 4-degree-Celsius termperature of maximum density. The new data do not go back far enough to show whether trends are part of an unresolvable natural cycle or forced by anthropogenic activity.
Publication Name: Limnology and Oceanography
Subject: Earth sciences
ISSN: 0024-3590
Year: 1999
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Effect of gas bubbles on the diffusive flux of methane in anoxic paddy soil
Article Abstract:
Actual measurements of methane fluxes are compared to calculations based on concentration gradients in microcosms of rice paddy soil. The effect of gas bubbles on methane concentration gradients is also examined, and evidence for a transport process other than molecular diffusion, such as bioirrigation, in the upper soil layers is discussed.
Publication Name: Limnology and Oceanography
Subject: Earth sciences
ISSN: 0024-3590
Year: 1998
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