You are here: Home PIK Members Dr. Susanne Grossman-Clarke

Dr. Susanne Grossman-Clarke

Senior Scientist

Research Domain II: Climate Impacts and Vulnerabilities


Adjunct Professor

Arizona State University, Global Institute of Sustainability, Tempe, AZ, USA



Potsdam Institute for Climate Impact Research (PIK)

P.O. Box 60 12 03

14412 Potsdam, Germany

Phone: +49-331-288-20728


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Research Interests

Regional climate modeling in urban areas.

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Research Projects


“Urban Climate and Heat Stress in Mid-latitude Cities in View of Climate Change” (UCaHS, 2012-2015). Sponsor: Deutsche Forschungsgemeinschaft (DFG). Principle Investigator of PIK sub-project. DFG Research Group 1736 under the lead of Prof. Dieter Scherer, Technical University Berlin.


“Vulnerability to Urban Climate Change: A System Dynamics Analysis” (UVCC, 2008-2014). Sponsor: National Science Foundation (USA), BCS - BE: Dynamic Coupled Natural and Human Systems. Co- Principal Investigator, in collaboration with Arizona State University.

“Collaborative Research: Influence of Urbanization on Weather in the Arid Phoenix Metropolitan Area” (2007-2011). Sponsor: National Science Foundation (USA), Physical and Dynamic Meteorology. Principal Investigator, in collaboration with the National Center for Atmospheric Research and King’s College London.

“Using Regional Atmospheric Modeling to Investigate Heavy Monsoon Rainfall Events in Arizona and Socioeconomic Implications” (2008-2009). Sponsor: Science Foundation Arizona, USA. Co- Principal Investigator, in collaboration with the University of Arizona.

“Real-time Weather Forecast for Arizona” (2005-2008). Sponsor: Salt River Project (USA). Principal Investigator, in collaboration with the University of Arizona.

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Academic Degrees

Ph.D. (2000)

University of Potsdam, Germany. "Modeling the response of canopy transpiration of a wheat crop to elevated atmospheric CO2 with consideration of water and nitrogen limitations.”

Diplom (1987)

Physics, Humboldt University, Berlin, Germany. "Studies on channel guided low energetic magnesium-ions in silicon using Deep Level Transient Spectroscopy.”


Previous Appointments

2004 - 2011     Assistant Research Professor and Senior Sustainability Scientist, Arizona State University, Global Instit. of Sustainability, USA.

2000 - 2004     Post-Doctoral Research Associate, Arizona State University, USA.

1993 - 1998     Research Scientist, Potsdam-Institute for Climate Impact Research, Germany.

1991 - 1992     Research Scientist, Academy of Science, Germany.



Faculty Fellowship National Center for Atmospheric Research (NCAR), Advanced Study Program (2008).

Prize of the German Academy of Science Leopoldina, for the promotion of Eastern German scientists (1996).

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Peer- reviewed


Trusilova, K., Schubert, S., Wouters, H., Früh, B., Grossman-Clarke, S., Demuzere, M., Becker, P. (2015) The urban land use in the COSMO-CLM model: a comparison of three parameterizations for Berlin. Meteorologische Zeitschrift, doi: 10.1127/metz/2015/0587.


Volkholz, J., Grossman-Clarke, S., Hattermann, F.F. and U. Böhm (2014) Evaluation of water balance components in the Elbe river catchment simulated by the regional climate model CCLM. Meteorologische Zeitschrift, 23(5): 511 - 525, doi: 10.1127/metz/2014/0487.

Grossman-Clarke, S., Schubert, S., Clarke, T.R. and S.H. Harlan (2014): Extreme summer heat in Phoenix, Arizona (USA) under global climate change (2041-2070). Die Erde 145 (1-2): 105-117, doi: 10.12854/erde-144-8.

Schubert, S. and S. Grossman-Clarke (2014) Evaluation of the coupled COSMO-CLM/DCEP model with observations from BUBBLE. Q.J.R. Meteorol. Soc., 2014, doi:10.1002/qj.2311.


Schubert, S. and S. Grossman-Clarke (2013) The Influence of Green Areas and Roof Albedos on Air Temperatures during Extreme Heat Events in Berlin, Germany. Meteorologische Zeitschrift (doi:10.1127/0941-2948/2013/0393).

Loridan, T., Lindberg, F., Jorba, O., Kotthaus, S., Grossman-Clarke, S., Grimmond, C.S.B. (2013) High Resolution Simulation of the Variability of Surface Energy Balance Fluxes Across Central London with Urban Zones for Energy Partitioning. Boundary-Layer Meteorology, DOI: 10.1007/s10546-013-9797-y.


Aggarwal, R. M., Guhathakurta, S., Grossman-Clarke, S. and V. Lathey (2012) How Do Variations in Urban Heat Islands in Space and Time Influence Household Water Use? The Case of Phoenix, Arizona. Water Resources Research, 48, DOI: 10.1029/2011WR010924.

Schubert, S., Grossman-Clarke, S. and A. Martilli (2012) A Two-canyon radiation scheme for urban canopy models.  Boundary Layer Meteorology, DOI: 10.1007/s10546-012-9728-3.

Ruddell, D.M., Harlan, S. L., Grossman-Clarke, S., Chowell, G. (2012) Scales of Perception: Public Awareness of Regional and Neighborhood Climates. Climatic Change, 111, 581-607.


Grossman-Clarke, S., Stefanov, W. L. and Zehnder, J. A. (2011) Urban Weather, Climate and Air Quality Modeling: Increasing Resolution and Accuracy Using Improved Urban Morphology, in Urban Remote Sensing: Monitoring, Synthesis and Modeling in the Urban Environment (ed X. Yang), John Wiley & Sons, Ltd, Chichester, UK. 305-319, DOI: 10.1002/9780470979563.ch21.

Myint, S. W., Gober, P., Brazel, A., Grossman-Clarke, S. and Q. Weng (2011) Per-pixel vs. object-based classification of urban landcover extraction using high spatial resolution imagery. Remote Sensing of Environment.115(5):1145-1161.

Chen, F., Kusaka, H., Bornstein, R., Ching, J., Grimmond, S., Grossman-Clarke, S., Loridan, T., Manning, W.K., Martilli, A., Miao, S., Sailor, D., Salamanca, F., Taha, H., Tewari, M., Wang, X., Wyszogrodzki, A.A. and C. Zhang (2011):  The integrated WRF/urban modeling system: development, evaluation, and applications to urban environmental problems. Int. J. Climatol. 31: 273–288.


Grossman-Clarke, S., Zehnder, J. A., Loridan, T. and S.C.B. Grimmond (2010) Contribution of Land Use Changes to Near Surface Air Temperatures during recent Summer Extreme Heat Events in the Phoenix Metropolitan Area. Journal of Applied Meteorology and Climatology, 49 (8), pp. 1649-1664.

Loridan, T., Grimmond, C.S.B. , Grossman-Clarke, S., Chen, F., Tewari, M., Manning, K., Martilli, A., Kusaka, H. and M. Best (2010) Input parameters, trade-offs and responsiveness of the urban parameterization in WRF: an offline evaluation using the MOSCEM optimization algorithm. Quarterly Journal of the Royal Meteorological Society the Quarterly Journal of the Royal Meteorological Society, 136 (649), pp. 997-1019.

Gober, P., A.J. Brazel, R. Quay, S. Myint, S. Grossman-Clarke, A. Miller and S. Rossi (2010). Using watered landscapes to manipulate urban heat island effects: How much water will it take to cool Phoenix? Journal of the American Planning Association. 76(1).


Zehnder, J.A. and S. Grossman-Clarke. 2009. Urban meteorological modeling. In: Steinebach, G., S. Guhathakurta, and H. Hagen. (Eds.) Visualizing Sustainable Planning. (pp. 93-108). Springer.

Ruddell, DM, Harlan, SL, Grossman-Clarke, S, Byuntajev, A. (2009) Risk and Exposure to Extreme Heat in Microclimates of Phoenix, AZ. In ‘Geospatial Contributions to Urban Hazard and Disaster Analysis’. Eds. Showalter, S. and L. Yongmei (pp. 179-202). Springer.

Grossman-Clarke, S, Liu, Y, Zehnder, JA, Fast JD, 2008. Simulation of the Urban Planetary Boundary Layer in an Arid Metropolitan Area. Journal of Applied Meteorology and Climatology. 47:752-768.

Silva, H., Bhardwaj, R, Phelan, P., Golden, J.S. and S. Grossman-Clarke (2008). Development of a Zero-Dimensional Mesoscale Thermal Model for Urban Climate. Journal of Applied Meteorology & Climatology. DOI: 10.1175/2008JAMC1962.1.

Brazel, A, Gober, P, Lee, SJ, Grossman-Clarke, S, Zehnder, JA, Hedquist, B, Comparri, E, 2007. Dynamics and determinants of regional urban heat island change (1990-2004) within Metropolitan Phoenix, Arizona, USA. Climate Research, 33: 171-182.

Lee, SM, Fernando, HJS, Grossman-Clarke, S, 2006. MM5-SMOKE-CMAQ as a modeling tool for 8-h ozone regulatory enforcement: application to the state of Arizona. Environmental Modeling and Assessment 1420-2026 (Print) 1573-2967 (Online), DOI 10.1007/s10666-006-9053-7, Thursday, June 22, 2006.

Grossman-Clarke, S., Zehnder, J.A., Stefanov, W.L., Liu, Y., Zoldak, M.A. (2005) “Urban modifications in a mesoscale meteorological model and the effects on surface energetics in an arid metropolitan region”, Journal of Applied Meteorology, 44(9), 1281–1297.

Fenn, ME, Hauber, R Tonneson, GS Baron, JS, Grossman-Clarke, S, Hope, D, Jaffe, DA, Copeland, S, Geiser, L, Heather, MR, Sickman, JO, (2003) Nitrogen emissions, deposition, and monitoring in the Western United States. BioScience 53/4: 391-403.

Grossman-Clarke S, Pinter Jr PJ, Kartschall T, Kimball BA, Hunsaker DJ, Wall GW, Garcia RL, LaMorte RL (2001) Modeling a spring wheat crop under elevated carbon dioxide and drought. New Phytologist 150/2: 315-336.

Fernando HJS, Lee MS, Anderson J, Princevac M, Pardyjak E, Grossman-Clarke S. 2001. Urban Fluid Mechanics 2001: Air circulation and contaminant dispersion in cities. Environmental Fluid Mechanics 0: 1-58.

Grossman-Clarke S. (2000) Modeling the response of canopy transpiration of a wheat crop to elevated atmospheric CO2 with consideration of water and nitrogen limitations. PIK Report No. 64, Potsdam-Institute for Climate Impact Research. Potsdam, Germany (in German).

Wechsung F, Garcia RL, Wall GW, Kartschall T, Kimball BA, Michaelis P, Pinter Jr PJ, Wechsung G, Grossman-Clarke S, LaMorte RL, Adamsen FJ, Leavitt SW, Thompson TL, Matthias AD, Brooks TJ. (2000) Photosynthesis and conductance of spring wheat ears: field response to free-air CO2 enrichment and limitations in water and nitrogen supply. Plant Cell and Environment 23 (9), 917-929.

Wall, GW, Adam, NR, Brooks, TJ, Kimball, BA, Pinter Jr., PJ, LaMorte, RL, Adamsen, FJ, Hunsaker, DJ, Wechsung, G, Wechsung, F, Grossman-Clarke, S, Leavitt, S, Matthias, AD, Webber, AN 2000. Acclimation response of spring wheat in a free-air CO2 enrichment (FACE) atmosphere with variable soil nitrogen regimes. Net assimilation and stomatal conductance of leaves. Photosynthesis Research 66: 79-95.

Grossman-Clarke S, Kimball BA, Hunsaker, DJ, Long SP, Garcia RL, Kartschall T, Wall GW, Pinter Jr. PJ, Wechsung F, LaMorte RL. 1999. Simulated and measured effects of elevated atmospheric CO2 on canopy transpiration in senescent spring wheat. Agricultural and Forest Meteorology 93: 95-109.

Grossman S, Kartschall T, Kimball BA, Hunsaker, DJ, LaMorte RL, Garcia RL, Wall GW, Pinter Jr. PJ. 1995. Simulated responses of energy and water fluxes to ambient atmosphere and free-air carbon dioxide enrichment in wheat. Journal of Biogeography 22: 601-609.

Kartschall T, Grossman S, Pinter Jr. PJ, Garcia RL, Kimball BA, Wall GW, Hunsaker DJ, LaMorte RL. 1995. A simulation of phenology, growth, carbon dioxide exchange and yield under ambient atmosphere and free-air carbon dioxide enrichment (FACE) for wheat. Journal of Biogeography 22: 611-622.


Other Publications

Grossman-Clarke, S. und S. Schubert (2013):  Auswirkungen des Klimawandels auf Deutschlands Städte. In: Zwei Grad mehr in Deutschland: Wie der Klimawandel unseren Alltag verändern wird. F.-W. Gerstengarbe und H. Welzer (Herausgeber), Forum für Verantwortung, Fischer Taschenbuch, Seite 189-207.

"Arizona's next top model" (2012), In: "People and Environment: our heat-habitat" Chain Reaction magazine,Volume 7, page 38-41 (for children)  published by Arizona State University (Knowledge Enterprise and Development).

Lee, SM, Grossman-Clarke, S, Fernando, HJS (2003). Simulation of 8-Hour Ozone Concentrations for the State of Arizona. Contract Report Submitted to the Arizona Department of Environmental Quality.

Kartschall, T, Gräfe, J, Michaelis, P, Waloszczyk, K, Grossman-Clarke, S (1999). Untersuchung der Auswirkungen erhöhter atmosphärischer CO2 -Konzentrationen innerhalb des Free-Air Carbon Dioxide Enrichment-Experimentes: Ableitung allgemeiner Modellösungen. PIK Report No. 53, Potsdam-Institute for Climate Impact Research. Potsdam, Germany (in German).

Kartschall, T, Grossman, S, Michaelis, P, Wechsung, F, Gräfe, J, Waloszczyk, K,  Wechsung, G, Blum, E, Blum, M (1998). Untersuchung der Auswirkungen erhöhter atmosphärischer CO2 -Konzentrationen auf Weizenbestände des Free-Air Carbondioxid Enrichment (FACE) - Experimentes Maricopa (USA). PIK Report No. 37, Potsdam-Institute for Climate Impact Research. Potsdam, Germany (in German).

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