05 - 08 2022    Guest researcher at the Applied Geodynamics Laboratory (AGL), Bureau for Economic Geology, University of Texas at Austin. (DAAD Postdoc scholarship)

09/2018 Woldstedt Prize of the German Quaternary Association (dissertation prize of the DEUQUA)

Since 05/2012 Scientific co-worker at Freie Universität Berlin, Department of Earth Sciences, Physical Geography, Workgroup Prof. Dr. Böse

2011 Student tutor for soil science at Humboldt-Universität zu Berlin, Faculty of Agriculture and Horticulture, Workgroup Prof. Dr. Zeitz

2007 – 2011 Student co-worker at Humboldt-Universität zu Berlin, Geomorphology Lab, Workgroup Prof. Dr. Schröder

2008 – 2012 M.Sc. studies at Humboldt-Universität zu Berlin: Physical Geography. Thesis: Ecopedological implications caused by fluoride immissions in the surroundings of Paranam, Suriname.

2005 – 2008 B.Sc. studies at Humboldt-Universität zu Berlin: Geography.

Winter semester 2019/2020
Methods of Physical Geography - Laboratory course

Winter semester 2018/2019
Introduction to geographic information systems for archaeologists - Seminar

Summer semester 2018
Project-related work and teaching research project: Landscape development and geoarchaeological investigations on the Germanic-Roman battlefield Harzhorn, district Northeim - Seminar and field work

Summer semester 2016
Project-related work - Quaternary landscape development in northern Germany - Field training

Summer semester 2015
Introduction to geomorphology and soil geography - Seminar

Winter semester 2014/15
Methods of Physical Geography - Laboratory course

Winter semester 2013/14
Methods of Physical Geography - Laboratory course

Summer semester 2013
Project: Research on the genesis of the glacial landscape Barnim - Seminar and field work

Winter semester 2012/13
Methods of Physical Geography - Laboratory course

• Routes of Interaction: Interregional Contacts between the Northern Horn of Africa and the Nile Region

• Stratigraphische und geochronologische Untersuchungen zum Quartär Nordost-Deutschlands

• Archäologische und geoarchäologische Untersuchungen am germanisch-römischen Schlachtfeld Harzhorn, Ldkr. Northeim

Articles in peer reviewed journals

• Kirsten, F., Starke, J., Bauriegel, A., Müller, R., Jouaux, J., Lüthgens, C., Sinapius, R., and Hardt, J., 2024: Age, composition and spatial distribution of sandy loess in north‐eastern Germany (Fläming, Brandenburg), Earth Surf Processes Landf, https://doi.org/10.1002/esp.5885.
  https://onlinelibrary.wiley.com/doi/epdf/10.1002/esp.5885
• Hardt, J., Dooley, T. P., and Hudec, M. R., 2024: Physical modeling of ice-sheet-induced salt movements using the example of northern Germany, Earth Surface Dynamics, 12, 559–579. https://doi.org/10.5194/esurf-12-559-2024

• Pfeiffer, K., Hardt, J., Breninek, C., Nir, N., Gerlach, I., Raue, D. und Schütt, B., 2023: Routes of interaction across northern central Tigray (Ethiopia) between 2nd and 1st millennium BCE: Interdisciplinary research in the Rama area. Journal of Global Archaeology, 2023(04), S.162–203. https://doi.org/10.34780/dt6n-6d15

• Hardt, J., Nir, N., Schütt, B., 2023. Combining Historical Maps, Travel Itineraries and Least-Cost Path Modelling to Reconstruct Pre-Modern Travel Routes and Locations in Northern Tigray (Ethiopia). The Cartographic Journal, 1-17.  https://doi.org/10.1080/00087041.2022.2150363
• Hardt, J., Nir, N., Lüthgens, C., Menn, T.M., Schütt, B., 2023. Palaeoenvironmental research at Hawelti–Melazo (Tigray, northern Ethiopia) – insights from sedimentological and geomorphological analyses. E&G Quaternary Sci. J. 72, 37-55. https://doi.org/10.5194/egqsj-72-37-2023
• Lüthgens, C., Hardt, J., 2022. Ice dynamics in the SW sector of the Scandinavian Ice Sheet (SIS) – a fresh perspective from the classical area of the Weichselian glaciation in northern Brandenburg. DEUQUA Spec. Pub. 4, 29-39. https://doi.org/10.5194/deuquasp-4-29-2022
• Liu, S.-H., Lüthgens, C., Hardt, J., Hebenstreit, R., Böse, M., Frechen, M., 2022. Late Quaternary formation of the Miaoli Tableland in northwest Taiwan, an interplay of tectonic uplift and fluvial processes dated by OSL. Quaternary Research, 1-22. https://doi.org/10.1017/qua.2022.52

• Nadav, N., Stahlschmidt, M., Busch, R., Lüthgens, C., Schütt, B., Hardt, J. (2022). Footpaths: Pedogenic and geomorphological long-term effects of human trampling. Catena Volume 215, ScienceDirect. https://doi.org/10.1016/j.catena.2022.106312
• Nykamp, M., Hauschulz, S., Hardt, J., Knitter, D., May, J., Hoelzmann, P., (2022). The landscape of the Late Bronze Age royal tomb of Seddin (NE Germany): linking geomorphology, archaeology, and historic evidence. Journal of Maps, 1-11. https://doi.org/10.1080/17445647.2021.2020178
• Hardt, J., Norden, B., Bauer, K., Toelle, O. & Krambach, J. (2021): Surface cracks - geomorphological indicators for late Quaternary halotectonic movements in Northern Germany. Earth Surface Processes and Landforms, 1– 21. Available from: https://doi.org/10.1002/esp.5226
• Busch, R., Hardt, J., Nir, N., & Schütt, B. (2021): Modeling Gully Erosion Susceptibility to Evaluate Human Impact on a Local Landscape System in Tigray, Ethiopia. Remote Sensing, 13(10), 2009. https://doi.org/10.3390/rs13102009
• Nir, N., Knitter, D., Hardt, J., and Schütt, B. (2021): Human movement and gully erosion: Investigating feedback mechanisms using Frequency Ratio and Least Cost Path analysis in Tigray, Ethiopia: PLOS ONE, v. 16, no. 2: e0245248. https://doi.org/10.1371/journal.pone.0245248
• Nykamp, M., Hardt, J., Hoelzmann, P., May, J., and Reimann, T. (2021): Towards timing and stratigraphy of the Bronze Age burial mound royal tomb (Königsgrab) of Seddin (Brandenburg, northeastern Germany): E&G Quaternary Sci. J., v. 70, no. 1, p. 1-17. https://doi.org/10.5194/egqsj-70-1-2021
• Lüthgens, C., Hardt, J., and Böse, M. (2020): Proposing a new conceptual model for the reconstruction of ice dynamics in the SW sector of the Scandinavian Ice Sheet (SIS) based on the reinterpretation of published data and new evidence from optically stimulated luminescence (OSL) dating: E&G Quaternary Sci. J., v. 69, no. 2, p. 201-223. https://doi.org/10.5194/egqsj-69-201-2020
• Hardt, J. (2017): Weichselian phases and ice dynamics of the Scandinavian Ice Sheet in northeast Germany: a reassessment based on geochronological and geomorphological investigations in Brandenburg. E&G Quaternary Sciience Journal 66, 101-102. [Thesis Abstract] http://dx.doi.org/10.5194/egqsj-66-101-2017
• Hardt, J., Lüthgens, C., Hebenstreit, R., Böse, M., (2016): Geochronological (OSL) and geomorphological investigations at the presumed Frankfurt ice marginal position in northeast Germany. Quaternary Science Reviews 154, 85-99. http://dx.doi.org/10.1016/j.quascirev.2016.10.01
• Hardt, J., Böse, M., (2016): The timing of the Weichselian Pomeranian ice marginal position south of the Baltic Sea: A critical review of morphological and geochronological results. Quaternary International (in press). http://dx.doi.org/10.1016/j.quaint.2016.07.044
• Hardt, J., Hebenstreit, R., Lüthgens, C., Böse, M., 2015: High-resolution mapping of ice-marginal landforms in the Barnim region, northeast Germany. Geomorphology 250, 41-52. http://dx.doi.org/10.1016/j.geomorph.2015.07.045
• Böse, M., Hebenstreit, R., Hardt, J., 2013: A deformation till at Hohuan Shan, Taiwan. Quaternary International. http://dx.doi.org/10.1016/j.quaint.2013.11.019

Dissertation

• Hardt, J. (2017): Weichselian phases and ice dynamics of the Scandinavian Ice Sheet in Northeast Germany - A reassessment based on geochronological and geomorphological investigations in Brandenburg.
  http://www.diss.fu-berlin.de/diss/receive/FUDISS_thesis_000000104286

Conference contributions

• Pfeiffer, K., Hardt, J., 2023: Routes of Interaction: Archaeological-geographical studies of pathway networks in the northern Horn of Africa.  Safa - Biennial Meeting of the Society of Africanist Archaeologists, June 1-6, 2023, Houston, Texas. (poster presentation)
• Hardt, J., Norden, B., Bauer, K., Dooley, T., and Hudec, M.: Ice sheet induced salt tectonics – the example of surface cracks in northern Germany, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-15122, https://doi.org/10.5194/egusphere-egu23-15122, 2023. (Oral presentation)
• Hardt, J., Busch, R., Nir, N., and Pfeiffer, K.: Routes of Interaction – Research on pre-modern route-setting, pedogenic and geomorphic effects of trampling, and feedback mechanisms between pathways and gully erosion in the Northern Ethiopian Highlands (Tigray), EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-14877, https://doi.org/10.5194/egusphere-egu23-14877, 2023. (PICO presentation)
• Böse, M., Hebenstreit, R., and Hardt, J.: The lowermost ELA in the Central Mountain Range of Taiwan during the LGM - dated with TCN, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-85, https://doi.org/10.5194/egusphere-egu23-85, 2023. (Poster presentation)

• Hardt, J., Dooley, T., Hudec, M.: Ice sheet induced salt movements in Northern Germany - combining geomorphological investigations and physical modeling to understand the involved mechanisms. Applied Geodynamics Laboratory Consortium Annual Meeting 2022, Austin, Texas, November 10-11, 2022. (Online presentation)

• Hardt, J. (2021): Surface Cracks – Landforms in Northern Germany Indicate Ice Sheet Induced Late Quaternary Halotectonic Movements. Virtual DEUQUA 2021, 30.09.2021-01.10.2021 (oral presentation).
• Hardt, J., Hoelzmann, P., Geschwinde, M., Lönne, P., Schatte, T., Meyer, M. (2018): The Harzhorn Incident – investigating the influence of soil parameters on the distribution of archaeological artefacts at a Germanic-Roman battlefield-site in Central Germany. Central European Conference on Geomorphology and Quaternary Sciences, 23. - 27.09.2018, Gießen. (poster presentation)
• Böse, M., Hardt, J., Lüthgens, C. (2017): The Weichselian phases of the Scandinavian Ice Sheet in northeast Germany revisited. Geophysical Research Abstracts Vol. 19, EGU2017-4411, EGU General Assembly 2017.
• Hardt, J., Lüthgens, C, Böse, M., 2016. Geomorphologische und Geochronologische Studien zur Frankfurt-Phase im Raum Barnim (Brandenburg, NE-Deutschland). DEUQUA 2016, 38. Hauptversammlung der deutschen Quartärvereinigung, 25.-30.09.2014, Dresden. (oral presentation)
• Hardt, J., Lüthgens, C., Böse, M., 2016: The Frankfurt phase - Geomorphological and geochronological investigations to reassess a "classical" ice marginal position in NE Germany. 10th International Young Geomorphologists Workshop, 27.-29.05.2016, Werbellinsee. (poster presentation)
• Böse, M., Lüthgens, C., Nitzsche, C. & Hardt, J. (2016): The disappearance of a “classical“ ice marginal position in NE-Germany: the Frankfurt phase puzzle. - Geophysical Research Abstracts Vol. 18, EGU2016-1951, EGU General Assembly 2016.
• Hardt, J., Nitzsche, C., Lüthgens, C., Böse, M., 2015: OSL-Dating of glaciofluvial sediments in the Barnim region (Brandenburg) - new insights in the Frankfurt ice marginal position. German Luminescence- and ESR-Meeting, 06.-08.11.2015, Berlin. (poster presentation)
• Hardt, J., Lüthgens, C., Böse, M., 2015: Geomorphologische und Geochronologische (OSL) Studien in der Umgebung der Frankfurter Eisrandlage im Raum Barnim (Brandenburg). AK Geomorphologie 2015, 03.10.-04.10.2015, Berlin. (poster presentation)
• Hebenstreit, R., Hardt, J., Böse, M., 2015: New evidence for Quaternary glaciations in Taiwan and a recalculation of the equilibrium line altitude. XIX INQUA Congress, Nagoya, p. T01428. (poster)
• Hardt, J., Böse, M., 2015: Geomorphologische und Geochronologische Untersuchungen der lobusförmigen Rückenstrukturen im Bereich des mittleren Barnim (Brandenburg) - neue Einsichten in den Eisrückzug während der Frankfurt-Phase. 79. Tagung der Arbeitsgemeinschaft Norddeutscher Geologen, 26.-29.05.2015, Güstrow. (oral presentation).  http://issuu.com/geozon/docs/lung-heft1-ngt
• Böse, M. & Hardt, J., 2015: About Weichselian Ice-Marginal Positions South of the Baltic Sea - Stratigraphy and Critical Discussion of Age Estimates. - Geophysical Research Abstracts Vol. 17, EGU2015-4696, EGU General Assembly 2015
• Hardt, J., Lüthgens, C, Böse, M., 2014: Geochronological analyses (OSL) of glaciofluvial sediments in the proximity of the Frankfurt ice marginal position on the Barnim till plain (Brandenburg). German Luminescence- and ESR-Meeting, 14.-16.11.2014, Gießen. (poster presentation)

• Hardt, J., Böse, M., 2014: Hochaufgelöste Geländemodelle als Werkzeug zur Neubewertung von Glaziallandschaften – das Beispiel der Frankfurter Eisrandlage im Raum Barnim (NO-Deutschland). DEUQUA 2014, 37. Hauptversammlung der deutschen Quartärvereinigung, 24.-29.09.2014, Innsbruck.
  http://www.uibk.ac.at/iup/verlagsverzeichnis/conferenceseries.html (oral presentation)
• Hardt, J., Böse, M., 2014: Late Quaternary ice sheet dynamics in northeastern Germany – new insights in the formation of the Frankfurt ice marginal position based on the analysis of a high resolution LiDAR digital elevation model. INQUA Peribaltic working group symposium, 16.-22.08.2014, Latvia. (oral presentation)
• Hardt, J., 2014: The Frankfurt ice marginal position in the Barnim area - reinterpretation of the genesis of a glacial landscape on basis of the interpretation of a high resolution LiDAR-DEM. 8th Young Geomorphologists Workshop, 23.-25.05.2014, Usedom. (oral presentation)
• Hardt, J., Böse, M., Hebenstreit, R., Lüthgens, C., 2014: New insights into palaeoglaciological processes in northeastern Germany by analysis of a LiDAR DEM: using high-resolution elevation data to reassess the geomorphology of the Barnim till plain. EGU General Assembly 2014, 27.04.-02.05.2014,  Vienna. Geophysical Research Abstracts Vol. 16, EGU2014-351. (poster presentation)

Public presentations

• Hardt, J. (2016): Geomorphologische, geochronologische und fernerkundliche Untersuchungen der Glaziallandschaft Barnim: oder vom Sandkorn zur Landschaft. Vortragsreihe des Vereins Märkische Eiszeitstraße, Eberswalde, 20.01.2016.
• Hardt, J. (2014): Untersuchungen zur Neubewertung der Glaziallandschaft in der Umgebung Frankfurter Eisrandlage im Raum Barnim. Colloquium der Geomorphologie des Geographischen Instituts der Humboldt-Universität zu Berlin, 17.12.2014.

Edited journal volumes

• Schröder, H.; Hardt, J., Waniek, M. 2010: Die Böden Surinames. 
  Arbeitsberichte des Geographischen Instituts der HU Berlin Band 156.

• Schröder, H.; Hardt, J. et al., 2010: Suriname - Bericht zur Hauptexkursion 2009. 
  Arbeitsberichte des Geographischen Instituts der HU Berlin Band 157.

• Makki, M.; Frielinghaus, M.; Hardt, J. et al (Hrsg.), 2010: Boden des Jahres 2010 - Stadtböden. Berlin und seine Böden. Berliner Geographische Arbeiten 117.

M.Sc. Thesis

• Hardt, J., 2012: Ökopedologische Folgen durch Fluoridimmissionen in der Umgebung von Paranam (Suriname).