Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.153
IF 5-year value: 5.460
IF 5-year
CiteScore value: 7.8
SNIP value: 1.623
IPP value: 4.91
SJR value: 2.092
Scimago H <br class='widget-line-break'>index value: 123
Scimago H
h5-index value: 65

  02 Jul 2020

02 Jul 2020

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

Deep desiccation of soils observed by long-term high-resolution measurements on a large inclined lysimeter

Markus Merk, Nadine Goeppert, and Nico Goldscheider Markus Merk et al.
  • Institute of Applied Geosciences (AGW), Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany

Abstract. Availability of long-term and high-resolution measurements of soil moisture is crucial when it comes to understanding all sorts of changes to past soil moisture variations and the prediction of future dynamics. This is particularly true in a world struggling against climate change and its impacts on ecology and economy. Feedback mechanisms between soil moisture dynamics and meteorological influences are key factors when it comes to understanding the occurrence of drought events. We used long-term high-resolution measurements of soil moisture on a large inclined lysimeter at a test site near Karlsruhe, Germany. The measurements indicate (i) a seasonal evaporation depth of over two meters. Statistical analysis and linear regressions indicate (ii) a significant decrease in soil moisture levels over the past two decades. This decrease is most pronounced at the start and the end of the vegetation period. Furthermore, Bayesian change point detection revealed (iii), that this decrease is not uniformly distributed over the complete observation period. Largest changes occur at tipping points during years of extreme drought, with significant changes to the subsequent soil moisture levels. This change affects not only the overall trend in soil moisture, but also the seasonal dynamics. A comparison to modeled data showed (iv) that the occurrence of deep desiccation is not merely dependent on the properties of the soil but is spatially heterogeneous. The study highlights the importance of soil moisture measurements for the understanding of soil moisture fluxes in the vadose zone.

Markus Merk et al.

Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for authors/editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Markus Merk et al.

Markus Merk et al.


Total article views: 380 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
280 84 16 380 19 20
  • HTML: 280
  • PDF: 84
  • XML: 16
  • Total: 380
  • BibTeX: 19
  • EndNote: 20
Views and downloads (calculated since 02 Jul 2020)
Cumulative views and downloads (calculated since 02 Jul 2020)

Viewed (geographical distribution)

Total article views: 279 (including HTML, PDF, and XML) Thereof 278 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
Latest update: 22 Jan 2021
Publications Copernicus