Marc Walther

Hydrologist
JProf., Dr. rer. nat.


Contact

Phone: +49 341 235 1054
Fax: +49 341 235 1939
Email: Marc Walther

Department of Environmental Informatics
Helmholtz Centre for Environmental Research - UFZ
Permoserstrasse 15
Building 7.2, Room 110 Sitemap
04318 Leipzig, Germany

Marc Walther

Research

Research Team Complex Groundwater Systems

Topics of interest

  • Water in (semi-)arid regions
  • Groundwater quantity and quality in coastal areas
  • Numerical modeling in the saturated and unsaturated zone
  • Simulation of groundwater flow and transport processes
  • Density driven and variable viscosity flow in porous media
  • Parameterization, interpolation and mesh generation in concurrence with hydro-geological structuring


Current Projects

Urban Catchments: Chaohu

Subproject in BMBF-funded project: Urban Catchments.

Runtime 12/2016 - 12/2018.

ESTIMATE

DFG funded CAWR-Project (TUD Institute for Groundwater Management, Professorships Groundwater Management & Contaminant Hydrology; UFZ Deparment Monitoring and Exploration Technologies) to understand influence of internal and external stressors on contaminant source zone formation and their implications for final plume extension.

Project runtime 03/2018-02/2021


MARZIPAN

DFG funded CAWR-Project (TUD Chair of Forest Biometrics and Forest Systems Analysis, UFZ Deparment Environmental Informatics) to gain information on subsurface aquifer structures from surface vegetation patterns.

Project runtime 07/2018-06/2021


INCIDENT


DFG funded CAWR-Project (TUD Chair of Groundwater Management, TUD Chair of Urban Water Management, UFZ Department Monitoring and Exploration Technologies) to deduct optimal groundwater monitoring strategies from sewer structure characteristics.

Projekt runtime 01/2019-12/2021


Project participation

01/2009 - 08/2013

International Water Research Alliance Saxony (IWAS): Groundwater modeling in coastal arid regions

09/2013 - 09/2015

ANGUS+: Impacts of the use of the geological subsurface for energy storage in the form of gas and heat in the context of a transition to renewable energy sources


Reviewed Publications

  • Sun, Q., Zheng, T., Zheng, X., Chang, Q., Walther, M., 2019. Influence of a subsurface cut-off wall on nitrate contamination in an unconfined aquifer. Journal of Hydrology 575, 234–243. https://doi.org/10.1016/j.jhydrol.2019.05.030
  • Engelmann, C., Händel, F., Binder, M., Yadav, P.K., Dietrich, P., Liedl, R., Walther, M., 2019. The fate of DNAPL contaminants in non-consolidated subsurface systems – Discussion on the relevance of effective source zone geometries for plume propagation. Journal of Hazardous Materials 375, 233–240. https://doi.org/10.1016/j.jhazmat.2019.04.083
  • Vollberg, F., Walther, M., Gärdes, A., Moosdorf, N., 2019. Modeling the Potential of Submarine Groundwater Discharge to Facilitate Growth of Vibrio cholerae Bacteria. Hydrology 6, 14. https://doi.org/10.3390/hydrology6020039
  • Jurado, A., Walther, M., Díaz-Cruz, M.S., 2019. Occurrence, fate and environmental risk assessment of the organic microcontaminants included in the Watch Lists set by EU Decisions 2015/495 and 2018/840 in the groundwater of Spain. Science of The Total Environment 663, 285–296. https://doi.org/10.1016/j.scitotenv.2019.01.270
  • Yu, L., Wu, X., Zheng, X., Zheng, T., Xin, J., Walther, M., 2019. An index system constructed for ecological stress assessment of the coastal zone: A case study of Shandong, China. J. Environ. Manage. 232, 499–504. https://doi.org/10.1016/j.jenvman.2018.11.084
  • Zinner, M., Rink, K., Jäkel, R., Feldhoff, K., Grunzke, R., Fischer, T., Song, R., Walther, M., Jejkal, T., Kolditz, O., Nagel, W.E., 2018. Revision Control and Automatic Documentation for the Development Numerical Models for Scientific Applications. Int. J. Adv. Softw. 11, 214–226.
  • Jing, M., Heße, F., Kumar, R., Wang, W., Fischer, T., Walther, M., Zink, M., Zech, A., Samaniego, L., Kolditz, O., Attinger, S., 2018. Improved regional-scale groundwater representation by the coupling of the mesoscale Hydrologic Model (mHM v5.7) to the groundwater model OpenGeoSys (OGS). Geosci. Model Dev. 11, 1989–2007. https://doi.org/10.5194/gmd-11-1989-2018
  • Miegel, K., Gräff, T., Franck, C., Salzmann, T., Bronstert, A., Walther, M., Oswald, S.E., 2017. Auswirkungen des Sturmhochwassers der Ostsee am 4./5. Januar 2017 auf das renaturierte Niedermoor „Hütelmoor und Heiligensee“ an der deutschen Ostseeküste. Hydrol. und Wasserbewirtschaftung 61, 232–243. doi:10.5675/HyWa_2017,4_2
  • Walther, M., Graf, T., Kolditz, O., Liedl, R., Post, V., 2017. How Significant is the Slope of the Sea-side Boundary for Modelling Seawater Intrusion in Coastal Aquifers? J. Hydrol. doi:10.1016/j.jhydrol.2017.02.031
  • Schulz, S., Walther, M., Michelsen, N., Rausch, R., Dirks, H., Al-Saud, M., Merz, R., Kolditz, O., Schüth, C., 2017. Improving large-scale groundwater models by considering fossil gradients. Adv. Water Resour. 103, 32–43. doi:10.1016/j.advwatres.2017.02.010
  • Selle, B., Gräff, T., Salzmann, T., Oswald, S.E., Walther, M., Miegel, K., 2016. Untersuchung eines renaturierten Mooreinzugsgebiets an der mecklenburgischen Ostseeküste - Teil II: Salzdynamik und Wasserhaushalt. Hydrol. und Wasserbewirtschaftung 60, 259–269, doi:10.5675/HyWa_2016,4_2.
  • Zhi, G., Chen, Y., Liao, Z., Walther, M., Yuan, X. (2016). Comprehensive assessment of eutrophication status based on Monte Carlo–triangular fuzzy numbers model: site study of Dongting Lake, Mid-South China. Environ. Earth Sci. 75, 1011. doi:10.1007/s12665-016-5819-7
  • Stoeckl, L., Walther, M., Graf, T., (2016). A new numerical benchmark of a freshwater lens. Water Resour. Res. doi:10.1002/2015WR017989
  • Fischer, T., Naumov, D., Sattler, S., Kolditz, O., and Walther, M. (2015). GO2OGS 1.0: a versatile workflow to integrate complex geological information with fault data into numerical simulation models, Geosci. Model Dev., 8, 3681-3694, doi:10.5194/gmd-8-3681-2015
  • Bilke, L., Fischer, T., Helbig, C., Krawczyk, C., Nagel, T., Naumov, D., Paulick, S., Rink, K., Sachse, A., Schelenz, S., Walther, M., Watanabe, N., Zehner, B., Ziesch, J., Kolditz, O. (2014). TESSIN VISLab—laboratory for scientific visualization. Environmental Earth Sciences. doi:10.1007/s12665-014-3785-5
  • Walther, M., Bilke, L., Delfs, J.-O., Graf, T., Grundmann, J., Kolditz, O., Liedl, R. (2014). Assessing the saltwater remediation potential of a three-dimensional, heterogeneous, coastal aquifer system. Environmental Earth Sciences. doi:10.1007/s12665-014-3253-2
  • Walther, M., Solpuker, U., Böttcher, N., Kolditz, O., Liedl, R., Schwartz, F. W. (2013). Description and Verification of a Novel Flow and Transport Model for Silicate-Gel Emplacement. Journal of Contaminant Hydrology, 157, 1–10. doi:10.1016/j.jconhyd.2013.10.007
  • Walther, M., Bilke, L., Delfs, J.-O., Graf, T., Grundmann, J., Kolditz, O., Liedl, R. (2013). Visualizing Saline Intrusion in a Three-Dimensional, Heterogeneous, Coastal Aquifer. In Workshop on Visualisation in Environmental Sciences (EnvirVis). Leipzig.
  • Kolditz, O., Bauer, S., Bilke, L., Böttcher, N., Delfs, J.-O., Fischer, T., Görke, U. J., Kalbacher, T., Kosakowski, G., McDermott, C. I., Park, C. H., Radu, F., Rink, K., Shao, H., Shao, H. B., Sun, F., Sun, Y. Y., Singh, A. K., Taron, J., Walther, M., Wang, W., Watanabe, N., Wu, Y., Xie, M., Xu, W., Zehner, B. (2012). OpenGeoSys: an open-source initiative for numerical simulation of thermo-hydro-mechanical/chemical (THM/C) processes in porous media. Environmental Earth Sciences. doi:10.1007/s12665-012-1546-x
  • Walther, M., Delfs, J.-O., Grundmann, J., Kolditz, O., Liedl, R. (2012). Saltwater intrusion modeling: Verification and application to an agricultural coastal arid region in Oman. Journal of Computational and Applied Mathematics, 236(18), 4798–4809. doi:10.1016/j.cam.2012.02.008
  • Walther, M., Böttcher, N., Liedl, R. (2012). A 3D interpolation algorithm for layered tilted geological formations using an adapted inverse distance weighting approach. In ModelCare2011, Models - Repositories of Knowledge (pp. 119–126). Leipzig: IAHS Publ. 355 (2012) ISBN 978-1-907161-34-6, 374 Link.
  • Kolditz, O., Görke, U.-J., Shao, H., Wang, W. (Ed.) (2012). Thermo-Hydro-Mechanical-Chemical Processes in Porous Media: Benchmarks and Examples (Lecture Notes in Computational Science and Engineering). Springer. Link
  • Kalbacher, T., Delfs, J.O., Shao, H., Wang, W., Walther, M., Samaniego, L., Schneider, C., Musolff, A., Centler, F., Sun, F., Hildebrandt, A., Liedl, R., Borchardt, D., Krebs, P., Kolditz, O. (2011). The IWAS-ToolBox: Software coupling for an integrated water resources management. Environmental Earth Sciences, 65(5), 1367–1380. doi:10.1007/s12665-011-1270-y
  • Walther, M., Fank, J., Reimann, T. (2010). Tiefengestaffeltes Wasserprobennahmesystem zur spezifischen Beprobung der ungesättigten Zone, dem Kapillarsaum und der gesättigten Zone. Grundwasser, 15(1), 19–32. doi:10.1007/s00767-009-0129-6


Contributions to Conferences / Proceedings

Link

Journal Reviewer 

Advances in Water Resources (ADWR)
Hydrology and Earth System Sciences (HESS)
Environmental Earth Sciences (EES)
Hydrogeology Journal
Water - Open Access Journal
Grundwasser


Academic Profile

10/2002 - 11/2008

Diploma study in Hydrology at TU Dresden

09/2005 - 08/2006

Study abroad at Uppsala Universitet (Sweden)

09/2007 - 12/2007

Internship geobild Stolpen

04/2008 - 05/2008

Internship JOANNEUM RESEARCH Graz

11/2008

Diploma Hydrology: "Untersuchung von Wasserfluss und Stofftransport im Übergangsbereich zwischen gesättigter und ungesättigter Zone im Labor‐ und Feldmaßstab am Beispiel der SUIR‐Beprobungsvorrichtung in Wagna, Österreich." (Award Preis Hydrogeology der FH-DGG 2010)

01/2009 - 02/2014

Scientific research & teaching staff at the Institute of Groundwater Management at Technische Universität Dresden

PhD Thesis "Variable-Density Flow Processes in Porous Media On Small, Medium and Regional Scales" (Award "Dresdner Grundwasserforschungspreis 2015" together with Dr. Aki Sebastian Ruhl)

08/2010 - 08/2013

Guest scientist at the Helmholtz-Zentrum for Environmental Research, Leipzig, Department of Environmental Informatics

02/2014 - 09/2015

Guest scientist at the Institute for Groundwater Management at the Technische Universität Dresden

since 09/2013 - ongoing

Scientific research staff at the Helmholtz-Zentrum for Environmental Research, Leipzig, Department of Environmental Informatics

since 10/2015

Junior-Professorship for Contaminant Hydrology at Technische Universität Dresden in joint appointment with UFZ Leipzig


    Teaching

For any teaching related activities, please see my website at the Technische Universität Dresden.