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Aubert, Alice H; Breuer, Lutz (2016): Continuous measurements at Schwingbachtal Studienlandschaft in the growing seasons 2013-2014 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.859204, Supplement to: Aubert, AH; Breuer, L (2016): New seasonal shift in in-stream diurnal nitrate cycles identified by mining high-frequency data. PLoS ONE, 11(4), e0153138, https://doi.org/10.1371/journal.pone.0153138

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Abstract:
The recent development of in-situ monitoring devices, such as UV-spectrometers, makes the study of short-term stream chemistry variation relevant, especially the study of diurnal cycles, which are not yet fully understood. Our study is based on high-frequency data from an agricultural catchment (Studienlandschaft Schwingbachtal, Germany). We propose a novel approach, i.e. the combination of cluster analysis and Linear Discriminant Analysis, to mine from these data nitrate behavior patterns. As a result, we observe a seasonality of nitrate diurnal cycles, that differs from the most common cycle seasonality described in the literature, i.e. pre-dawn peaks in spring. Our cycles appear in summer and the maximum and minimum shift to a later time in late summer/autumn. This is observed both for water- and energy-limited years, thus potentially stressing the role of evapotranspiration. This concluding hypothesis on the role of evapotranspiration on nitrate stream concentration, which was obtained through data mining, broadens the perspective on the diurnal cycling of stream nitrate concentrations.
Coverage:
Median Latitude: 50.503528 * Median Longitude: 8.562994 * South-bound Latitude: 50.495590 * West-bound Longitude: 8.550290 * North-bound Latitude: 50.516050 * East-bound Longitude: 8.599370
Date/Time Start: 2013-03-05T12:30:00 * Date/Time End: 2014-10-23T13:35:00
Comment:
In this publication, two growing seasons were studied, periods: 05 March 2013 12:45 to 24 September 2013 12:30 and 27 April 2014 00:00 to 23 October 2014 13:15.
The raw data base is named Schwingbachtal Studienlandschaft.
It was created by the Institute for Landscape Ecology and Resources Management (ILR), Research Centre for BioSystems, Land Use and Nutrition (IFZ), Justus Liebig University Giessen, Heinrich-Buff-Ring 26, Giessen, Germany.
If needed raw data (or other time periods, or complementary variables, or more detailed metadata) are available there, after request of a guest login.
Access: http://fb09-pasig.umwelt.uni-giessen.de:8081/
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
8 datasets

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Datasets listed in this publication series

  1. Aubert, AH; Breuer, L (2016): Continuous solar radiation measurement at Schwingbachtal Studienlandschaft, Germany (growing season 2013-2014). https://doi.org/10.1594/PANGAEA.859207
  2. Aubert, AH; Breuer, L (2016): Continuous discharge measurement at Schwingbachtal Studienlandschaft, Germany (growing season 2013-2014). https://doi.org/10.1594/PANGAEA.859200
  3. Aubert, AH; Breuer, L (2016): Continuous groundwater level measurement at Schwingbachtal Studienlandschaft, Germany (growing season 2013-2014). https://doi.org/10.1594/PANGAEA.859201
  4. Aubert, AH; Breuer, L (2016): Continuous nitrate measurements at Schwingbachtal Studienlandschaft, Germany (growing season 2013-2014). https://doi.org/10.1594/PANGAEA.859202
  5. Aubert, AH; Breuer, L (2016): Continuous precipitation measurement at Schwingbachtal Studienlandschaft, Germany (growing season 2013-2014). https://doi.org/10.1594/PANGAEA.859205
  6. Aubert, AH; Breuer, L (2016): Continuous soil moisture and soil temperature measurement at Schwingbachtal Studienlandschaft, Germany at 0.1 m depth (growing season 2013-2014). https://doi.org/10.1594/PANGAEA.859206
  7. Aubert, AH; Breuer, L (2016): Continuous air temperature measurement at Schwingbachtal Studienlandschaft, Germany (growing season 2013-2014). https://doi.org/10.1594/PANGAEA.859198
  8. Aubert, AH; Breuer, L (2016): Continuous water temperature measurement at Schwingbachtal Studienlandschaft, Germany (growing season 2013-2014). https://doi.org/10.1594/PANGAEA.859208