El Niño, ice cover, and Great Lakes phosphorus: Implications for climate warming

摘要: Phosphorus concentrations in a 19-year record of the Lake Huron outflow (Laurentian Great Lakes North America) were negatively correlated with extent winter ice cover. The highest phosphorus (2–3 times higher than normal) occured during 1983,1987, and 1992 response to strong El Nino-related moderation air temperatures. 1983 temperature anomaly +2.5°C (the mildest record) is well within output predicted increaces by general circulation models for basin under 2× CO2 climate warming scenario. data from Nino years, when contrasted other years having near-normal temperatures cover, can thus serve identify some previously unanticipated impacts global on lake water quality. I suggest that may have important implications eutrophication control Lakes.