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Head of Research Group: Regional Coupling of Ecosystem-Atmosphere-Processes

Dr. Stefan Emeis


Regional weather forecast

Urban-Rural Interactions under Global Change

Beijing (© Peter Suppan)
Energy production
(© picture-alliance/ ZB)
Zugspitze: Source Karen Suppan
Zugspitze (© Karen Suppan)

Megacities and densely populated areas have significant impact on atmosphere-surface exchange, atmospheric processes and on the chemical composition of the “urbanized” atmosphere. Given the high dynamics of urban regions and the further growing of the urban population, air pollution will affect more and more people.

In the vicinity of conurbations, anthropogenic emissions in combination with biogenic emissions lead to the formation of secondary pollutants, such as secondary aerosols (SOA), ozone, PAN as well as to greenhouse gases of high concentrations. The characteristics of these emissions (e.g. composition, spatial and temporal heterogeneity and variability) and the processes affecting the corresponding spatial distribution of aerosols and ozone in and around cities are poorly understood and require further investigation.

On the other hand, the impact of climate change as e.g. an increase of the average temperature, and changes in humidity and cloudiness will have a considerable and direct effect on the urban heat island phenomena which impacts circulation systems, air pollution levels, radiative feedback mechanisms of aerosols and thus the well-being and health of people living in urban agglomerations.

The scientific challenge is to understand the interaction between the gaseous and particle phase of anthropogenic emissions and biogenic related emissions within a changing climate.

General contact: Stefan Emeis

Selected recent publications

  • 2018

    ·        Pace, R. Biber, P., Pretzsch, H,  Grote, R. 2018. Modeling Ecosystem Services for Park Trees: Sensitivity of i-Tree Eco Simulations to Light Exposure and Tree Species Classification. Forests, 9: 89–106, DOI: 10.3390/f9020089 .

    ·      Shen, R., Schaefer, K., Schnelle-Kreis, J.,  Shao, L., Norra, S., Kramar, U.,  Michalke, B.,  Abbaszade, G., Streibel, T., Zimmermann, R., Emeis, S. 2018. Seasonal variability and source distribution of haze particles from a continuous one-year study in Beijing. Atmospheric Pollution Research, 9: 627–633,  DOI: 10.1016/j.apr.2017.12.013.

    ·      Platis, A., Siedersleben, S., Bange, J. et al. 2018. First in situ evidence of wakes in the far field behind offshore wind farms. Scientific Reports Volume: 8, DOI: 10.1038/s41598-018-20389-y

  • 2017

    ·        Wiß, F, Ghirardo, A, Schnitzler, J-P, Nendel, C, Augustin, J, Hoffmann M, Grote R. 2017. Net ecosystem fluxes and composition of BVOCs over a maize field - Interaction of meteorology and phenological stages. Global Change Biology Bioenergy, 9: 1627–1643.

    ·       Churkina G, Kuik F, Bonn B, Lauer A, Grote R, Tomiak K, Butler T. 2017. Effect of VOC emissions from vegetation on air quality in Berlin during a heatwave. Environmental Science & Technology, 51: 6120–6130.

    ·        Lindauer M, Schmid HP, Grote R, Steinbrecher R, Mauder M, Wolpert B. 2017. A simple new model for incoming solar radiation dependent only on screen-level relative humidity. Journal of Applied Meteorology and Climatology, 56: 1817-1825.

    ·       Brosy, C., Krampf, K., Zeeman, M., Wolf, B., Junkermann, W., Schäfer, K., Emeis, S., and Kunstmann, H., 2017: Simultaneous multicopter-based air sampling and sensing of meteorological variables, Atmos. Meas. Tech., 10, 2773-2784, https://doi.org/10.5194/amt-10-2773-2017.

    ·        Geiß, A., Wiegner, M., Bonn, B., Schäfer, K., Forkel, R., von Schneidemesser, E., Münkel, C., Chan, K. L., and Nothard, R., 2017: Mixing layer height as an indicator for urban air quality?, Atmos. Meas. Tech., 10, 2969-2988, https://doi.org/10.5194/amt-10-2969-2017.

    ·        Schweier J, Molina-Herrera S, Ghirardo A, Grote R, Díaz-Pinés E, Kreuzwieser J, Haas E, Butterbach-Bahl K, Rennenberg H, Schnitzler J-P, Becker G. 2017. Environmental impacts of bioenergy wood production from poplar short rotation coppice grown at a marginal agricultural site in Germany. Global Change Biology Bioenergy, 9: 1207–1221.

  • 2016

    ·        Grote, R. et al., Functional traits of urban trees: air pollution mitigation potential, Front. Ecol. Environ. (2016), http://onlinelibrary.wiley.com/doi/10.1002/fee.1426/pdf.

    ·        Bonn, B., von Schneidemesser, E., Andrich, D., Quedenau, J., Gerwig, H., Lüdecke, A., Kura, J., Pietsch, A., Ehlers, C., Klemp, D., Kofahl, C., Nothard, R., Kerschbaumer, A., Junkermann, W., Grote, R., Pohl, T., Weber, K., Lode, B., Schönberger, P., Churkina, G., Butler, T.M., Lawrence, M.G. (2016) BAERLIN2014 - The influence of land surface types on and the horizontal heterogeneity of air pollutant levels in Berlin. Atmos. Chem. Phys. 16:7785-7811. doi:10.5194/acp-16-7785-2016

    ·        Shen, R.; Schäfer, K.; Schnelle-Kreis, J.; Shao, L.; Norra, S.; Kramar, U.; Michalke, B.; Abbaszade, G.; Streibel, T.; Fricker, M.; Chen, Y.; Zimmermann, R.; Emeis, S.; Schmid, H. P., Characteristics and sources of PM in seasonal perspective - A case study from one year continuously sampling in Beijing. Atmospheric Pollution Research, 7 (2016), 235-248, http://dx.doi.org/10.1016/j.apr.2015.09.008.

    ·       Ghirardo, A.; Xie, J.; Zheng, X.; Wang, Y.; Grote, R.; Block, K.; Wildt, J.; Mentel, T.; Kiendler-Scharr, A.; Hallquist, M.; Butterbach-Bahl, K.; Schnitzler, J.P., Urban stress-induced biogenic VOC emissions impact secondary aerosol formation in Beijing. Atmospheric Chemistry and Physics, 16 (2016), 2901-2920. DOI: 10.5194/acp-16-2901-2016.

    ·        Tiwari, S.; Grote, R.; Churkina, G., Butler, T., Ozone damage, detoxification and the role of isoprenoids - new impetus for integrated models. Functional Plant Biology, 43 (2016), 324-336. DOI: 10.1071/FP15302

    ·        Fallmann, J., Forkel, R., Emeis, S., Secondary effects of urban heat island mitigation measures on air quality, Atmospheric Environment 125 (2016) 199-211, http://dx.doi.org/10.1016/j.atmosenv.2015.10.094

  • 2015

    ·        Ashworth, K., Chung, S. H., Griffin, R. J., Chen, J., Forkel, R., Bryan, A. M., and Steiner, A. L., 2015: FORest Canopy Atmosphere Transfer (FORCAsT) 1.0: a 1-D model of biosphere-atmosphere chemical exchange. Geosci. Model Dev., 8, 3765-3784, doi:10.5194/gmd-8-3765-2015

    ·        Churkina, G.; Grote, R.; Butler, T.M.; Lawrence M. Natural selection? Picking the right trees for urban greening. Environmental Science & Policy, 47 (2015), 12-17.  http://dx.doi.org/10.1016/j.envsci.2014.10.014.

    ·        Forkel, R., Balzarini, A., Baró, R., Bianconi, R., Curci, G., Jiménez-Guerrero, P., Hirtl, M., Honzak, L., Lorenz, C., Im, U., Pérez, J.L., Pirovano, G., San José, R., Tuccella, P., Werhahn, J., Zabkar, R., Analysis of the WRF-Chem contributions to AQMEII phase2 with respect to aerosol radiative feedbacks on meteorology and pollutant distributions, Atmospheric Environment 115 (2015), doi: 10.1016/j.atmosenv.2014.10.056.

    ·       Molina-Herrera, S., Grote, R., Santabárbara-Ruiz, I., Kraus, D., Klatt, S., Haas, E., Kiese, R., Butterbach-Bahl, K. (2015) Simulation of CO2 fluxes at European forest ecosystems with the coupled soil-vegetation process model “LandscapeDNDC”. Forests 6:1779-1809. doi:10.3390/f6061779

    ·        Foreman, R.J., Emeis, S., Cañadillas, B., 2015. Half-Order Stable Boundary-Layer Parametrization Without the Eddy Viscosity Approach for Use in Numerical Weather Prediction.
    Boundary-Layer Meteorology, 154 (2015), 207-228. DOI:10.1007/s10546-014-9969-4

    ·        Zabkar, R., Honzak, L., Skok, G., Forkel, R., Rakovec, J., Ceglar, A., Zagar, N. Evaluation of the high resolution WRF-Chem (v3.4.1) air quality forecast and its comparison with statistical ozone predictions. Geoscientific Model Development, 8 (2015), 2119-2137. DOI:10.5194/gmd-8-2119-2015.

    ·        Balzarini, A., Pirovano, G., Honzak, L., Zabkar, R., Curci, G., Forkel, R., Hirtl, M., San Jose, R., Tuccella, P., Grell, G. WRF-Chem model sensitivity to chemical mechanisms choice in reconstructing aerosol optical properties. Atmospharic Environment, 115 (2015), 620-629. DOI:10.1016/j.atmosenv.2015.01.047.

    ·        Hase, F.; Frey, M.; Blumenstock, T.; Groß, J.; Kiel, M.; Kohlhepp, R.; Mengistu Tsidu, G.; Schäfer, K.; Sha, M.K.; Orphal, J. Use of portable FTIR Spectrometers for detecting greenhouse gas emissions of the major city of Berlin. Atmospheric Measurement Techniques, 8 (2015), 3059-3068. doi:10.5194/amt-8-3059-2015.

    ·        Zhang, Y.-L.; Schnelle-Kreis, J.; Abbaszade, G.; Zimmermann, R.; Zotter, P.; Shen, R.-R.; Schäfer, K.; Shao, L.; Prévôt, A.S.H.; Szidat, S. Source Apportionment of Elemental Carbon in Beijing, China: Insights from Radiocarbon and Organic Marker Measurements. Environmental Science & Technology, 49 (2015), 8408-8415. DOI: 10.1021/acs.est.5b01944.