caa a22 4500 467919011 CHVBK 20180406152911.0 cr unu---uuuuu 170328e20060501xx s 000 0 eng 10.1007/s10584-005-9006-1 doi (NATIONALLICENCE)springer-10.1007/s10584-005-9006-1 The Warming of Lake Tahoe [Elektronische Daten] [Robert Coats, Joaquim Perez-Losada, Geoffrey Schladow, Robert Richards, Charles Goldman] Summary: We investigated the effects of climate variability on the thermal structure of Lake Tahoe, California-Nevada, 1970-2002, and with principal components analysis and step-wise multiple regression, related the volume-weighed average lake temperature to trends in climate. We then used a 1-dimensional hydrodynamic model to show that the observed trends in the climatic forcing variables can reasonably explain the observed changes in the lake. Between 1970 and 2002, the volume-weighted mean temperature of the lake increased at an average rate of 0.015 ∘C yr−1. Trends in the climatic drivers include 1) upward trends in maximum and minimum daily air temperature at Tahoe City; and 2) a slight upward trend in downward long-wave radiation. Changes in the thermal structure of the lake include 1) a long-term warming trend, with the highest rates near the surface and at 400 m; 2) an increase in the resistance of the lake to mixing and stratification, as measured by the Schmidt Stability and Birge Work; 3) a trend toward decreasing depth of the October thermocline. The long-term changes in the thermal structure of Lake Tahoe may interact with and exacerbate the well-documented trends in the lake's clarity and primary productivity. Springer Science+Business Media, Inc., 2006 Coats Robert Hydroikos Ltd., 2560 9th St., Ste. 216, 94710, Berkeley, California, USA aut Perez-Losada Joaquim Departament Fisica, Universitat de Girona, Girona, Spain aut Schladow Geoffrey Department of Civil and Environmental Engineering, University of California, 95616, Davis, California, USA aut Richards Robert Department of Environmental Science and Policy, University of California, 95616, Davis, California, USA aut Goldman Charles Department of Environmental Science and Policy, University of California, 95616, Davis, California, USA aut Climatic Change Springer Netherlands 76/1-2(2006-05-01), 121-148 0165-0009 76:1-2<121 2006 76 10584 https://doi.org/10.1007/s10584-005-9006-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10584-005-9006-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Coats Robert Hydroikos Ltd., 2560 9th St., Ste. 216, 94710, Berkeley, California, USA aut NATIONALLICENCE 700 1- Perez-Losada Joaquim Departament Fisica, Universitat de Girona, Girona, Spain aut NATIONALLICENCE 700 1- Schladow Geoffrey Department of Civil and Environmental Engineering, University of California, 95616, Davis, California, USA aut NATIONALLICENCE 700 1- Richards Robert Department of Environmental Science and Policy, University of California, 95616, Davis, California, USA aut NATIONALLICENCE 700 1- Goldman Charles Department of Environmental Science and Policy, University of California, 95616, Davis, California, USA aut NATIONALLICENCE 773 0- Climatic Change Springer Netherlands 76/1-2(2006-05-01), 121-148 0165-0009 76:1-2<121 2006 76 10584 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer