Reservoirs as sentinels of catchments: the Rappbode Reservoir Observatory (Harz Mountains, Germany)

Rinke, Karsten; Kuehn, Burkhard; Bocaniov, Serghei A.; Wendt‐Potthoff, Katrin; Büttner, Olaf; Tittel, Jörg; Schultze, Martin; Herzsprung, Peter; Rönicke, Helmut; Rink, Karsten; Rinke, Kristine; Dietze, Maren; Matthes, Marco; Paul, Lothar; Friese, Kurt

doi:10.1007/s12665-013-2464-2

Cited by 71 publications

(58 citation statements)

References 34 publications

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“…We demonstrate our density approach with the example of Rappbode Reservoir (Germany; for details on this reservoir, see Rinke et al, 2013, and references therein); its low electrical conductivity indicates low concentrations of solutes. From chemical analysis of a surface sample from 19 November 2010, we knew the major cations were calcium (13.8 mg L −1 ) and sodium (9.3 mg L −1 ), while major anions were bicarbonate (28.07 mg L −1 ), sulfate (18.5 mg L −1 ) and chloride (16.8 mg L −1 ) (see Table 1).…”

Section: Rappbode Reservoirmentioning

confidence: 99%

A practical approach to lake water density from electrical conductivity and temperature

Moreira

Schultze

Rahn

et al. 2016

Hydrol. Earth Syst. Sci.

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Abstract. Density calculations are essential to study stratification, circulation patterns, internal wave formation and other aspects of hydrodynamics in lakes and reservoirs. Currently, the most common procedure is the use of CTD (conductivity, temperature and depth) profilers and the conversion of measurements of temperature and electrical conductivity into density. In limnic waters, such approaches are of limited accuracy if they do not consider lake-specific composition of solutes, as we show. A new approach is presented to correlate density and electrical conductivity, using only two specific coefficients based on the composition of solutes. First, it is necessary to evaluate the lake-specific coefficients connecting electrical conductivity with density. Once these coefficients have been obtained, density can easily be calculated based on CTD data. The new method has been tested against measured values and the most common equations used in the calculation of density in limnic and ocean conditions. The results show that our new approach can reproduce the density contribution of solutes with a relative error of less than 10 % in lake waters from very low to very high concentrations as well as in lakes of very particular water chemistry, which is better than all commonly implemented density calculations in lakes. Finally, a web link is provided for downloading the corresponding density calculator.

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Section: Rappbode Reservoirmentioning

confidence: 99%

A practical approach to lake water density from electrical conductivity and temperature

Moreira

Schultze

Rahn

et al. 2016

Hydrol. Earth Syst. Sci.

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“…We briefly discuss very recent EES works related to the Lake Taihu dealing with remote sensing approaches for large-scale and long-term lake observation, on-site lake monitoring (Rinke et al 2013), water quality assessment, and basic research to provide a context for the present Thematic Issue. provide useful information about nitrate source discrimination and N cycle process.…”

Section: Lakes In China-taihumentioning

confidence: 99%

“…Quality of surface waters is a severe problem worldwide (Dimberg and Bryhn 2014;Harmon et al 2014;Christia et al 2014;Renjith et al 2013;Sedlacek et al 2013;Antunes et al 2013;Rinke et al 2013;Watchorn et al 2013;George et al 2013) but particularly important to China because of the water resources use from the huge rivers originating in the Tibetan plateau flowing through the North China Plain into the Pacific Ocean. The water quality issue includes nutrients Wu et al 2013), in particular phosphorus (Chen and Zhao 2014;Yuan et al 2014;Zhu et al 2013;Liu and Chang 2013) and many other pollutants.…”

Section: Introductionmentioning

confidence: 99%

Thematic Issue: Water of the Taihu Lake

Sun

et al. 2015

Environ Earth Sci

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“…Eutrophication of surface waters is a severe problem worldwide (Dimberg and Bryhn 2014;Harmon et al 2014;Christia et al 2014;Renjith et al 2013;Sedlacek et al 2013;Antunes et al 2013;Rinke et al 2013;Watchorn et al 2013;George et al 2013;Ivashechkin et al 2004) but particularly important to China because of the use of water resources from the huge rivers originating in the Tibetan plateau flowing through the North China Plain into the Pacific Ocean. The water quality issue includes nutrients (Ji et al 2014;Wu et al 2013) and phosphorus (Chen et al 2014;Yuan et al 2014;Zhu et al 2013;Liu and Chang 2013;Marjore et al 2013).…”

mentioning

confidence: 99%