EGU2020-17821, updated on 12 Jun 2020
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

The hydrogeology of the transboundary Yarmouk Gorge: a case study

‪Nimrod Inbar‬‏1,2, Christian siebert3, Josef Guttman4, Peter Möller5, Eliyahu Rosenthal6, Isabella Shentsis6, Marwan Raggad7, Elias Salameh8, and Fabien Magri9,10
‪Nimrod Inbar‬‏ et al.
  • 1Eastern R&D Center, Geophysics and Space Sciences, Ariel, Israel (
  • 2Physics Dpt. Ariel University, Ariel, Israel (
  • 3Dept. Catchment Hydrology, Helmholtz Center for Environmental Research UFZ, Halle, Germany
  • 4Hydrology Department, Mekorot, The National Water Company, Tel Aviv, Israel
  • 5Helmholtzentrum Potsdam, German Research Center for Geosciences GFZ, Section 3.4, Potsdam, Germany
  • 6The Porter School for the Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
  • 7The Inter-Islamic Network on Water Resources Development and Management, Amman-Jordan
  • 8University of Jordan, Amman, Jordan
  • 9Chair of Hydrogeology, Freie Universität Berlin, Berlin, Germany
  • 10Dept. FA 2, Federal Office for the Safety of Nuclear Waste Management (BfE), Berlin, Germany

The Lower Yarmouk Gorge (LYG) marks both hydrogeological and Geopolitical triple junction. It serves as a meeting point for groundwater flowing from the Syrian Haurn Plateau, the Jordanian Ajloun Mountain and the Israeli Golan Heights. It is also the natural outlet of the 6,833 km2 transboundary Yarmouk drainage basin, which was one of the main tributaries of the Jordan River. Within the gorge, springs and boreholes exhibits various water types flowing in a wide range of temperatures. For the three riparian states, the uncertainty of groundwater origin and flow paths imposes difficulties on the management of water flowing towards the Gorge. In last few years a series of studies have attempted to unveil some of the mystery. Numerical representation of rainfall field is a method developed in order to cope with the lack of data and contributed to the assessment of water consumption and aquifer discharge at the ungauged/unreported upstream parts of the basin (Shentsis et al., 2018 and 2019). Hydrochemistry of groundwater has been investigated in light of the natural processes in the larger Yarmouk Basin and a methodology was devalued for identifying different groundwater bodies in multi-aquifer systems (Möller et al., 2016; Rosenthal et al., 2020). Finally, a new structural model for the transboundary Lower Yarmouk Gorge has been suggested based on data from Israel and Jordan (Inbar et al., 2019) and several numerical simulations have been conducted for the study of this enigmatic fractured hydrothermal system (Magri et al., 2015 and 2016; Gurezki et al., 2016). Finally, it seems that currently we are a few steps closer towards a better understanding of this complex transboundary system and the lessons learned here can be used in other transboundary system around the world.

Inbar, N., E. Rosenthal, F. Magri, M. Alraggad, P. Möller, A. Flexer, J. Guttman, and C. Siebert (2019), Faulting patterns in the Lower Yarmouk Gorge potentially influence groundwater flow paths

Magri, F., N. Inbar, C. Siebert, E. Rosenthal, J. Guttman, and P. Möller (2015), Transient simulations of large-scale hydrogeological processes causing temperature and salinity anomalies in the Tiberias Basin

Magri, F., S. Möller, N. Inbar, P. Möller, M. Raggad, T. Rödiger, E. Rosenthal, and C. Siebert (2016), 2D and 3D coexisting modes of thermal convection in fractured hydrothermal systems - Implications for transboundary flow in the Lower Yarmouk Gorge

Möller, P., E. Rosenthal, N. Inbar, and F. Magri (2016), Hydrochemical considerations for identifying water from basaltic aquifers: The Israeli experience

Rosenthal, E., P. Möller, I. Shentsis, C. Siebert, F. Magri, J. Guttman, and N. Inbar (2020), Natural Processes determining the hydrochemistry of the groundwater in the Yarmouk basin

Shentsis, I., N. Inbar, E. Rosenthal, and F. Magri (2018), Numerical representation of rainfall field in basins of the Upper Jordan River and of the Yarmouk River

Shentsis, I., N. Inbar, E. Rosenthal, and F. Magri (2019), Assessing water consumption and aquifer discharge through springs based on the joint use of rain and flow data in the Yarmouk River Basin

How to cite: Inbar‬‏, ‪., siebert, C., Guttman, J., Möller, P., Rosenthal, E., Shentsis, I., Raggad, M., Salameh, E., and Magri, F.: The hydrogeology of the transboundary Yarmouk Gorge: a case study, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-17821,, 2020