Preprints
https://doi.org/10.5194/essd-2021-315
https://doi.org/10.5194/essd-2021-315

  07 Oct 2021

07 Oct 2021

Review status: this preprint is currently under review for the journal ESSD.

Spatial and seasonal patterns of water isotopes in northeastern German lakes

Bernhard Aichner1, David Dubbert2, Christine Kiel3, Katrin Kohnert3, Igor Ogashawara3, Andreas Jechow2,3, Sarah-Faye Harpenslager1, Franz Hölker2, Jens Christian Nejstgaard3, Hans-Peter Grossart3,4, Gabriel Singer2,5, Sabine Wollrab3, and Stella Angela Berger3 Bernhard Aichner et al.
  • 1Leibniz Institute of Freshwater Ecology and Inland Fisheries, Dep. 2 Ecosystem Research, Müggelseedamm 301, Berlin, Germany
  • 2Leibniz Institute of Freshwater Ecology and Inland Fisheries, Dep. 1 Ecohydrology, Müggelseedamm 310, Berlin, Germany
  • 3Leibniz Institute of Freshwater Ecology and Inland Fisheries, Dep. 3 Experimental Limnology, Zur alten Fischerhütte 2, D-16775 Stechlin
  • 4Potsdam University, Institute for Biochemistry and Biology, Maulbeerallee, D-14469 Potsdam, Germany
  • 5Department of Ecology, Innsbruck University, Technikerstrasse 25, A-6020 Innsbruck, Austria

Abstract. Water isotopes (δ2H and δ18O) were analyzed in samples collected in lakes associated to riverine systems in northeastern Germany throughout 2020. The dataset (Aichner et al., 2021) is derived from water samples collected at a) lake shores (sampled in March and July 2020); b) buoys which were temporarily installed in deep parts of the lake (sampled monthly from March to October 2020); c) multiple spatially distributed spots in four selected lakes (sampled in September 2020); d) the outflow of Müggelsee (sampled biweekly from March 2020 to January 2021). At shores, water was sampled with a pipette from 40–60 cm below water surface and directly transferred into a measurement vial, while at deeper parts of the lake a Limnos water sampler was used to obtain samples from 1 m below surface. Isotope analysis was conducted at IGB Berlin, using a Picarro L2130-i cavity ring-down spectrometer. The data give information about the seasonal isotope amplitude in the sampled lakes and about spatial isotope patterns in different branches of the associated riverine systems.

Bernhard Aichner et al.

Status: open (until 02 Dec 2021)

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Bernhard Aichner et al.

Data sets

Water isotope values from northeastern German lake systems Aichner, B., Dubbert, D., Kiel, C., Kohnert, K., Ogashawara, I., Jechow, A., Harpenslager, S. F., Hölker, F., Singer, G., Grossart, H. P., Nejstgaard, J. C., Wollrab, S., Berger, S. A. https://www.pangaea.de/tok/1da04ef79674dd9169df42db2368107323ee4ef4

Bernhard Aichner et al.

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Short summary
Water isotopes were measured along transects and in the form of time series in northeastern German lakes. The spatial patterns within the data and their seasonal variability are related to morphological and hydrological properties of the studied lake systems. They are further useful for the understanding of biogeochemical and ecological characteristics of these lakes.