Preprints
https://doi.org/10.5194/essd-2022-304
https://doi.org/10.5194/essd-2022-304
 
07 Oct 2022
07 Oct 2022
Status: this preprint is currently under review for the journal ESSD.

Integrated ecohydrological hydrometric and stable water isotope data of a drought-sensitive mixed land use lowland catchment

Doerthe Tetzlaff1,2, Aaron Smith1, Lukas Kleine1,2, David Dubbert1, Jonas Freymueller1, Hauke Daempfling1, and Chris Soulsby3 Doerthe Tetzlaff et al.
  • 1IGB Leibniz Institute of Freshwater Ecology and Inland Fisheries Berlin, Berlin, Germany
  • 2Humboldt University Berlin, Berlin, Germany
  • 3Northern Rivers Institute, School of Geosciences, University of Aberdeen, UK

Abstract. Data from long-term experimental catchments are the foundation of hydrological sciences and are crucial to benchmark process understanding, observe trends and natural cycles, and are prerequisites for testing predictive models. Integrated data sets which capture all compartments of our landscapes are particularly important in times of land use and climate change. Here, we present ecohydrological data measured at multiple spatial scales which allow to characterise so called “blue” water fluxes (which supply groundwater recharge and support streamflow generation) and “green” water fluxes (which sustain vegetation growth). There are two particular unique aspects to this data set though: a) we measured water stable isotopes in the different landscape compartments (that is in precipitation, surface water, soil, ground- and plant water); and b) conducted this monitoring during the extreme drought of 2018 in Central Europe. Stable water isotopes are so useful in hydrology as they provide “fingerprints” of the pathways water took when moving through a catchment. Thus, isotopes allow to evaluate the dynamic relationships between water storage changes and fluxes, which is fundamental to understanding how catchments respond to hydroclimate perturbations or abrupt land use conversion. Second, as we provide the data until 2020 one can also investigate recovery of water stores and fluxes after extreme droughts. Last but not least: lowland headwaters are often understudied systems despite them providing important ecosystem services such as groundwater and drinking water provision and management for forestry and agriculture.

Doerthe Tetzlaff et al.

Status: open (until 02 Dec 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2022-304', Anonymous Referee #1, 18 Nov 2022 reply
    • AC1: 'Reply on RC1', Doerthe Tetzlaff, 25 Nov 2022 reply

Doerthe Tetzlaff et al.

Data sets

Integrated ecohydrological hydrometric and stable water isotope data of a drought-sensitive mixed land use lowland catchment Doerthe Tetzlaff1,2, Aaron Smith1, Lukas Kleine1,2, David Dubbert 1, Jonas Freymuller1, Hauke Daempfling 1 and Chris Soulsby3 https://fred.igb-berlin.de/data/package/622

Doerthe Tetzlaff et al.

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Short summary
We present a comprehensive set of ecohydrological hydrometric and stable water isotope data of 2 years of data. The data set is unique as the different compartments of the landscape were sampled and the effects of a prolonged drought (2018–2020) was captured with a marked negative rainfall anomaly (the most severe regional drought of the 21st century). Thus, the data allow the drought effects on water storage, flux and age dynamics and persistence lowland landscapes to be investigated.