The temperature here averages 4.4 °C | 40.0 °F. The role of stratification on lakes' thermal response: The case of Lake Superior. The variation in the precipitation between the driest and wettest months is 81 mm | 3 inch. 0000143759 00000 n Evaluating and improving modeled turbulent heat fluxes across the North American Great Lakes. 188 51 0000007796 00000 n Hibbing ���ځ���\�ӂ��S����7��_ �c�٠ ��Jc ūd� 0000144988 00000 n Light may have triggered a period of net heterotrophy in Lake Superior. They operate during the ice-free months each year, and are typically deployed in … 0000004030 00000 n The 1998 step change is associated with a decrease in winter ice duration of 39 d (a 34% decline), an increase of ∼ 2–3°C in mean surface water temperature (July–September averages), and a 91% increase in July–August evaporation rates, reflecting an earlier start to the summer evaporation season. 0000013202 00000 n The largest freshwater lake in the world, Lake Superior's surface covers 31,700 square miles, and its cold waters reach a depth of 1,332 feet. Projected Influences of Changes in Weather Severity on Autumn-Winter Distributions of Dabbling Ducks in the Mississippi and Atlantic Flyways during the Twenty-First Century. 0000014240 00000 n • Recent increases in water temperature have mostly been driven by warming during the spring and summer months (see Figure 2). 0 0000016442 00000 n Two Harbors This is a degree above the long-term average surface water temperature high of 16 °C; it also took place a couple of weeks earlier than the long-term average high, which occurs in early September. Virginia Lake Ontario ice coverage: Past, present and future. 0000007088 00000 n h�bb�b`b``Ń3Υ� P 0000051560 00000 n Impact of Water Mixing and Ice Formation on the Warming of Lake Superior: A Model‐guided Mechanism Study. Surface Water Temperature: 41.9 °F; Wind: 12 mph out of the E (gusting to 15 mph) Last Updated: November 7, 2020 3:00pm CDT. 0000010842 00000 n 0000099413 00000 n 0000198632 00000 n Hermantown Above is a comparison of surface water temperatures from July 12 on the left and August 11 on the right. 0000002549 00000 n startxref Novel, direct observations of ice on Lake Superior during the high ice coverage of winter 2013–2014. Integrating Perspectives to Understand Lake Ice Dynamics in a Changing World. On the predictability of lake surface temperature using air temperature in a changing climate: A case study for Lake Tahoe (U.S.A.). Whereas in February the lowest value is measured with about 1.10°C | 33.98°F. Proctor • Since 1995, average surface water temperatures have increased slightly for each of the Great Lakes (see Figure 2). Although the linear trends are statistically significant and contribute to an understanding of environmental change, a careful examination of the trends shows important nonlinearities. Mitigating eutrophication and toxic cyanobacterial blooms in large lakes: The evolution of a dual nutrient (N and P) reduction paradigm. 0000144020 00000 n Marie, Lake Superior: The current water temperature 39.2 °F … 0000003477 00000 n Duluth 0000123151 00000 n For all sorts of lake-relatved recreation such as swimming boating,and fishing, this site provides mathematically generated instantaneous and 5-day predictions of lake surface water temperatures. 0000005474 00000 n The average water temperature in Lake Superior in winter reaches 3°C/37.4°F, in spring 2°C/35.6°F, in … Throughout the year, the water temperature in Lake Superior does not rise above 20°C/68°F and therefore is not suitable for comfortable swimming.
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