2010
DOI: 10.1029/2009wr008447
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Effect of sediment and nutrient loading on Lake Tahoe optical conditions and restoration opportunities using a newly developed lake clarity model

Abstract: [1] A quasi-two-dimensional lake clarity model (LCM) was developed to better understand the impacts of pollutant load on lake/reservoir water quality and to provide guidelines for lake/reservoir management and restoration. Though the LCM can be applied to any lake, the model was calibrated and validated using the available detailed data set of Lake Tahoe. The estimated and measured annual average Secchi depths demonstrate a very high degree of agreement with relative error of less than 6%. The sensitivity anal… Show more

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Cited by 33 publications
(52 citation statements)
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“…Declines in Lake Tahoe water quality have been observed during the last 50 years (Sahoo et al, 2010; (TERC, 2011). Eutrophication from atmospheric and terrestrial nitrogen (N) and phosphorus (P) inputs and light scattering by particulate inputs are the main causes of this decline (Jassby et al, 2003;Swift et al, 2006).…”
Section: Basin-wide Loading Estimatesmentioning
confidence: 99%
“…Declines in Lake Tahoe water quality have been observed during the last 50 years (Sahoo et al, 2010; (TERC, 2011). Eutrophication from atmospheric and terrestrial nitrogen (N) and phosphorus (P) inputs and light scattering by particulate inputs are the main causes of this decline (Jassby et al, 2003;Swift et al, 2006).…”
Section: Basin-wide Loading Estimatesmentioning
confidence: 99%
“…Lake Tahoe is world renowned for its natural beauty, crystal clear waters, and cobalt-blue color. However, long-term monitoring shows that the clarity of the lake as measured by secchi disks has declined by 10 m since 1968 and the lake's rate of primary productivity is increasing by about 5 % per year (Coats 2010;Sahoo et al 2010).…”
mentioning
confidence: 99%
“…4 Accumulated precipitation (red curve) at Tahoe City, California during the ARkStorm sequence with accumulated precipitation (red dots) during the 1997 AR storm sequence, as a reference. Blue (above freezing) and white (below freezing) areas indicate altitudes where precipitation falling as rain and snow, respectively, are expected to occur to as inputs to the Lake Clarity Model (Sahoo et al 2010) of Lake Tahoe, to evaluate the response of Lake Tahoe chemistry and clarity to the storm, during the storm and in several years thereafter. Broadly speaking, the lake was simulated to suffer some significant clarity impacts (as measured by Secchi disk), amounting to declines of [6 m less visibility in the lake in the year when ARkStorm occurs that might persist as[1 m clarity declines for four or more years afterward (Sahoo and Schladow, unpublished data).…”
Section: Quantifying the Scenariomentioning
confidence: 99%