Agostina Ortiz


Research Assistant in the Research Group “Geomorphology and Environmental Systems”

Research interests/regions

  • High mountain systems and geophysics
  • High mountain permafrost; periglacial and paraglacial processes and their interactions
  • Surface morphology, internal structure and composition of taluses and blockslopes
  • Application of geophysical methodologies (Electrical Resistivity Tomography, Refraction Seismic Tomography, Ground Penetrating Radar) to determine the geomorphic and hydrological significance of high mountain permafrost of said periglacial landforms
  • Water storage capacities and hydrologic relevance of taluses and blockslopes in the Dry Andes of Argentina

Teaching (at National University of San Juan and Bonn University)

  • March 2023: Master-Excursion to Argentina (Joint supervision with Prof. Dr. L. Schrott)
  • Teaching in “Geophysics applied to geotechnics", Geophysics Master Program. 2019-2021.
  • Teaching in “Electrical Prospecting", Geophysics Master Program. 2019-2021.
  • Teaching assistant in Applied Geology II" Principles of sedimentary basins analysis", Geophysics Master Program. 2016.
  • Teaching in Analytic Geometry, Geophysics Master Program. 2015-2019.
  • Teaching assistant in Earth´s Physics, Geophysics Master Program. 2015.
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Diana Agostina Ortiz

0.031 (156)

Meckenheimer Allee 166

53115 Bonn

Office hours: by arrangement

PhD Project

PhD-Thesis: “Estudio Geofísico del permafrost Andino en taludes y laderas de bloques en la Cuenca de Agua Negra, Provincia de San Juan, República Argentina- Deteccion, Distribucion y Significado hidrologico-" 

My PhD project aims to contribute to the knowledge of hydrogeology from the detection, distribution and characterization of mountain permafrost in the Agua Negra Basin in San Juan Province (Argentina). For its study I propose the application of 3 geophysical techniques: Seismic Refraction Tomography, Resistive Electrical Tomography and GPR (Ground Penetrating Radar) as well as a deep geomorphological analysis in two dominant periglacial landforms, taluses and block slopes. This study will make it possible to determine with great precision the distribution of permafrost in the Arid Andes of Argentina, as well as the influence on the permafrost of said landforms, climatic, lithological and topographic conditions. This characterization will allow a more precise estimate of the solid-state water reserve contained in the aforementioned periglacial geoforms. The doctoral thesis is part of the DFG-funded project "Spatial occurrence and hydrological significance of Andean permafrost, Agua Negra, Argentina (HyPerm)".

Detection, Distribution, and Internal Structure of Andean Permafrost in Taluses and Block-slopes - Agua Negra Basin, Argentina

Ortiz, D.A., Stammler, M.A., Köhler, T., Schrott, L. and Trombotto-Liaudat, D (2022)

Conference Poster at MGM22

Permafrost distribution and ice content of blockslopes and taluses: contribution to the hydrological system of the Agua Negra basin, Dry Andes of Argentina

Ortiz, D.A., Köhler, T., Stammler, M.A., Villarroel, C.D., Trombotto-Liaudat, D. and Schrott, L. (2022)

Conference Poster at VIII Congreso Argentino de Cuaternario y Geomorphología 2022

Andean Permafrost in Taluses and Blockslopes in the Agua Negra Catchment, Argentina - Distribution and Hydrological Significance

Stammler, M.A., Ortiz, D.A., Köhler, T. and Schrott, L. (2022)

Conference Presentation at EGU General Assembly 2022

Investigating the spatial occurence and hydrological significance of permafrost in talus and blockslopes in the Agua Negra catchment / Argentina

Köhler, T., Stammler, M.A., Ortiz, D.A. and Schrott, L. (2022)

Conference Poster at XXI Congreso Geológico Argentino 2022

Low-enthalpy geothermal energy resources in the Central Andes of Argentina: A case study of the Pismanta system

Christiansen, R., Clavel, F., Gonzalez, M., Garcia H., Ortiz D.A., Ariza J.P., Martinez, P. and Wohnlich, S. (2021)

Renewable Energy, 177, 1234-1252. DOI:

Internal structure of a large, complex rock glacier and its significance in hydrological and dynamic behavior: A case study in the semi-arid Andes of Argentina

Villarroel, C.D., Ortiz, D.A., Forte, A.P., Tamburini Beliveau, G., Ponce, D., Imhof, A. and López, A. (2021)

Permafrost and Periglacial Processes, PPP2132. DOI:

Active layer and permafrost thickness in rock glaciers derived from geophysical methods in semiarid Andes of Argentina

Villarroel, C., Forte, A.P., Ortiz, D., Tamburini Beliveau, G. and Guell, A. (2020)

Geomorphology. 365, 107249. DOI:

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