Team » Katja Trachte

Prof. Dr. Katja Trachte

Temporary Chair of Climatology

Room Unistr. 104, 2.24

Phone +49 (0)234 32 – 28383

E-mail: katja.trachte(at)rub(dot)de

Office hours: by arrangement

ORCID: 0000-0003-4269-9668

ResearcherID: M-7310-2015


  • Cloud and precipitation dynamics
  • Boundary-layer processes
  • Interactions between land surface and atmosphere
  • Climate change in tropical mountainous areas
  • Numerical modelling


  • PhD 02/2011 "Cold air drainage flows and their relation to the formation of nocturnal convective clouds at the eastern Andes of South Ecuador"
  • Diploma thesis (2006) "Sensitivitätsstudie zur raumzeitlichen Niederschlagssimulation über dem Alpenraum mit dem Mesoskalenmodell ARPS"


  • Wilhelm-Lauer-Award, Academy of Science and Literature Mainz, for outstanding PhD Thesis
  • Award of the Marburger Geographical Society for PhD Thesis

Publications with peer-review

Bendix, J., A. Fries, J. Zarate, K. Trachte, R. Rollenbeck et al. (2016): RADARNET-SUR First Rain Radar Network in Tropical High Mountains. Bulletin of the American Meteorological Society, DOI:

Makowski Giannoni, S.; Trachte, K.; Rollenbeck, R.; Lehnert, L.; Fuchs, J. & Bendix, J. (2016): Atmospheric salt deposition in a tropical mountain rainforest at the eastern Andean slopes of south Ecuador – Pacific or Atlantic origin?. Atmospheric chemistry and physics 16, 10241-10261 DOI:

Lehnert, L.; Wesche, K.; Trachte, K.; Reudenbach, C. & Bendix, J. (2016): Climate variability rather than overstocking causes recent large scale cover changes of Tibetan pastures. Scientific Reports 6, 24367 DOI:

Campozano, L.; Celleri, R.; Trachte, K.; Bendix, J. & Samaniego, E. (2016): Rainfall and Cloud Dynamics in the Andes: A Southern Ecuador Case Study. Advances in Meteorology 2016(ID 3192765), 15 DOI:

Rollenbeck, R.; Trachte, K. & Bendix, J. (2015): A new class of quality controls for micrometeorological data in complex tropical environments. J. of Atmos. and Ocean techn.. J. of Atmos. and Ocean techn. Vol 33(No 1), 169-183 DOI:

Makowski Giannoni, S.; Rollenbeck, R.; Trachte, K. & Bendix, J. (2014): Natural or anthropogenic? On the origin of atmospheric sulfate deposition in the Andes of southeastern Ecuador. Atmospheric Chemistry and Physics 14, 11297– 11312 DOI:

Li, Y.; Zhang, S.; Thies, B.; Trachte, K. & Bendix, J. (2014): Spatio-temporal detection of fog / low stratus top height over the geostationary satellite data as a precondition for ground fog detection – a feasibility study. Atmospheric Research 151, 212-223.

Wilcke, W.; Leimer, S.; Peters, T.; Emck, P.; Rollenbeck, R.; Trachte, K.; Valarezo, C. & Bendix, J. (2013): The nitrogen cycle of tropical montane forest in Ecuador turns inorganic under environmental change. Global Biogeochemical Cycles 27(4), 1194-1204. 

Breuer, L., J.-F. Exbrayat, I. Plesca, W. Buytaert, T. Ehmann, T. Peters, E. Timbe, K. Trachte & D. Windhorst (2013): Global climate change impacts on local climate and hydrology. In: J. Bendix, E. Beck, A. Bräuning, F. Makeschin, R. Mosandl, S. Scheu & W. Wilcke (eds.): Ecosystem Services, Biodiversity and Environmental Change in a Tropical Mountain Ecosystem of South Ecuador. Springer, Berlin, 20-34.

Trachte, K. & Bendix, J. (2012): Katabatic flows and their relation to the formation of convective clouds - idealized case studies. Journal of Applied Meteorology and Climatology 51, 1531-1546. 

Bendix, J.; Trachte, K.; Palacios, E.; Rollenbeck, R.; Göttlicher, D.; Nauss, T. & Bendix, A. (2011): El Niño meets La Niña - anomalous rainfall patterns in the "traditional" El Niño region of southern Ecuador. Erdkunde 65(2), 151-167. 

Trachte, K.; Rollenbeck, R. & Bendix, J. (2010): Nocturnal convective cloud formation under clear?sky conditions at the eastern Andes of South Ecuador. Journal of Geophysical Research - Atmosphere 115, 1-15 DOI:

Trachte, K.; Nauss, T. & Bendix, J. (2010): The impact of different terrain configurations on the formation and dynamics of katabatic flows: Idealised case studies. Boundary-Layer Meteorology 134, 307-325 DOI:

Bendix, J.; Trachte, K.; Cermak, J.; Rollenbeck, R. & Nauss, T. (2009): Formation of convective clouds at the foothills of the tropical eastern Andes (South Ecuador). Journal of Applied Meteorology and Climatology 48, 1-17.

Publications without peer-review

Trachte, K. & J. Bendix (2015) Recent trends in temperature and precipitation obtained by the high resolution Climate Indicator System (hrCIS) for South Ecuador. In: MRp|SE Newsletter, Issue 4. Laboratory for Climatology and Remote Sensing (LCRS), University of Marburg, Germany. DOI:

Trachte, K. & J. Bendix (2014) Effects of land surface models on the occurrence and intensity of precipitation. In: MRp|SE Newsletter, Issue 1. Laboratory for Climatology and Remote Sensing (LCRS), University of Marburg, Germany. DOI:

Rollenbeck, R., K. Trachte & J. Bendix (2013): Impacts of environmental change on climate and ecosystem. In: TMF-Newsletter No. 19 - DFG-Research Unit 816. DOI:

Trachte, K., R. Rollenbeck, & J. Bendix (2012): Advances in climate change research of the study area. In: TMF-Newsletter No. 17 - DFG-Research Unit 816. DOI:

Wilcke, W., S. Leimer, R. Rollenbeck, K. Trachte, J. Bendix & C. Valarezo (2012): Nitogen cycling became increasingly inorganic in the last decade. In: TMF-Newsletter No. 17 - DFG-Research Unit 816. DOI:

Trachte, K. (2011): Nocturnal convective clouds. In: TMF-Newsletter No. 14 - DFG-Research Unit 816. DOI: lcrs/for816.cit.1031.

Trachte, K. & R. Rollenbeck (2010): Modelling and remote sensing. In: TMF-Newsletter No. 9 - DFG-Research Unit 816. DOI: 10.5678/lcrs/for816.cit.1002.

Trachte, K., R. Rollenbeck & J. Bendix (2009): Regional climate model runs confirm hypothesis. In: TMF-Newsletter No. 7 - DFG-Research Unit 816. DOI: