(only in German)

Bridging the gap between observations and models

• Model verification and diagnostics (multivariate evaluation, fuzzy methods, verification of extrem events, impact of observational error)
• Description of observational errors due to limited representativity, retrieval errors etc.
  
• Sensor networks
• Mesoscale data assimilation, in particular of (nearly) diagnostic quantities (rain, clouds parameters, etc.)

Physical aspects of mesoscale modelling

• Land-surface interaction of heterogeneous terrain
• Representation of the hydrological cycle in models
• Scale aspects of parameterizations; adaptive parameterizations

• Schomburg, A., V. Venema, F. Ament, C. Simmer, 2011: Application of an adaptive radiative transfer scheme in a mesoscale numerical weather prediction model, QJRMS, accepted
• Bechtel, B; Langkamp, T; Ament, F; Bohner, J; Daneke, C; Gunzkofer, R; Leitl, B; Ossenbrugge, J; Ringeler, A. 2011. Towards an urban roughness parameterisation using interferometric SAR data taking the Metropolitan Region of Hamburg as an example. Meteorologische Zeitschrift 20 (1): 29-37.
• Ament, F., T. Weusthoff and M. Arpagaus, 2011: Evaluation of MAP D-PHASE heavy precipitation alerts in Switzerland during summer 2007, Atmospheric Research, 100 (2-3): 178-189.
• Schomburg, A., V. Venema, R. Lindau, F. Ament and C. Simmer, 2010: A downscaling scheme for atmospheric variables to drive soil-vegetation-atmosphere transfer models, Tellus A, 4 (62), 242-258
• Weusthoff, T., F. Ament, M. Arpagaus, M. W. Rotach, 2010: Assessing the benefit of convection permitting models by Fuzzy Verification - examples from MAP D-PHASE, MWR, 9 (138), 3418-3433
• Rotach MW, Ambrosetti P, Ament F, Appenzeller C,  Arpagaus M, Bauer HS, Behrendt A,  Bouttier F, Buzzi A, Corazza M,  Davolio S, Denhard M, Dorninger M,  Fontannaz L,  Frick J, Fundel F, Germann U,  Gorgas T,  Hegg C,  Hering A, Keil C,  Liniger MA,  Marsigli C, McTaggart-Cowan R,  Montani A, Mylne K, Ranzi R,  Richard E, Rossa A, Santos-Muñoz D, Schär C, Seity Y, Staudinger M, Stoll M, Volkert H, Walser A, Wang Y, Werhahn J, Wulfmeyer V, Zappa M: 2009: MAP D-PHASE: Real-time Demonstration of Weather Forecast Quality in the Alpine Region, Bulletin American Meteorol Soc, (90) 9, pp 1321-
• Grasselt, R., K. Warrach-Sagi, D. Schüttemeyer, F. Ament and C. Simmer, 2008: Influence of precipitation forcing on discharge simulation in the Sieg catchment, Meteorologische Zeitschrift, 6 (17), 763-773
• Warrach-Sagi, K., V. Wulfmeyer, R. Graßelt, F. Ament and C. Simmer, 2008: Coupled simulations of the land surface model TERRA-ML with a river routing scheme reveal the impact of the soil parameterization on the water balance, Meteorologische Zeitschrift, 6 (17), 751-752
• Zappa, M., M. W. Rotach, M. Arpagaus, M. Dorninger, C. Hegg, A. Montani, R. Ranzi, F. Ament , U. Germann, G. Grossi, S. Jaun, A. Rossa, S. Vogt, A. Walser, C. Wunram, 2008: MAP D-PHASE: Real-time demonstration of hydrological ensemble prediction systems, Atmospheric Science Letters, 9 (2), 80-87
• Venema, V., A. Schomburg, F. Ament and C. Simmer, 2007: Two adaptive radiative transfer schemes for numerical weather prediction models, Atmospheric Chemistry and Physics, 7 (21): 5659-5674
• Thiele, A., F. Ament, and C. Simmer, 2007: Hyperspectral Radiative Transfer Modelling Using the Southern Great Plains 1999 Experiment Data Set, Meteorologische Zeitschrift, 16 (2), 149-158
• Venema, V., F. Ament, and C. Simmer, 2006: A Stochastic Iterative Amplitude Adapted Fourier Transform Algorithm with improved accuracy, Nonlinear Processes in Geophysics, 13 (3)
• H.-T. Mengelkamp, F. Beyrich, G. Heinemann, F. Ament, J. Bange, F. Berger, J. Bösenberg, T. Foken, B. Hennemuth, C. Heret, S. Huneke, K.-P. Johnsen, W. Kohsiek, J.-P. Leps, C. Liebethal, H. Lohse, M. Mauder, W. Meijninger, S. Raasch, C. Simmer, T. Spieß, A. Tittebrand, J. Uhlenbrock, and P. Zittel, 2006: Evaporation over a heterogeneous land surface: The EVA_GRIPS project, Bulletin of the American Meteorological Society, 87, 775-786
• Ament, F. and C. Simmer, 2006: Improved Representation of Land-Surface Heterogeneity in a Non-Hydrostatic Numerical Weather Prediction Model, Boundary-Layer Meteorology, 121, 153-174
• van Lipzig, N., M. Schröder, S. Crewell, F. Ament, J.-P. Chaboureau, U. Löhnert, V. Matthias, E. van Meijgaard, M. Quante, U. Willén, and W. Yen, 2006: Comparison of model predicted low-level cloud parameters with observations from the BALTEX-Bridge Campaign, Atmospheric Research, v. 82, iss. 1-2, p. 55-82.
• M. Schröder, N. van Lipzig, F. Ament, J.-P. Chaboureau, S. Crewell, U. Löhnert, V. Matthias, E. van Meijgaard, M. Quante, U. Willén, and W. Yen, 2006: Comparison of model predicted low-level cloud parameters with satellite remote sensing observations during two days of the BALTEX Bridge Campaigns, Atmospheric Research, v. 82, iss. 1-2, p. 83-101.
• Ament, F., S. Crewell, and C. Simmer, 2004: Impact of horizontal model resolution on cloud parameters forecasted by a non-hydrostatic mesoscale model, Proceedings of the 14th International Conference on Clouds and Precipitation, Bologna, July 2004, 1883-1886
• Meetschen, D., B. van den Hurk, F. Ament, and M. Drusch, 2004: Optimized surface radiation fields derived from Meteosat imagery and a regional atmospheric model, Journal of Hydrometeorology, 1091-1101
• Ament, F., 2003: Contribution to WP4200 in "CLIWA-NET - Baltex Bridge Cloud Liquid Water Network", Editors S. Crewell, C. Simmer, A. Feijt, E. van Meijgaard, International BALTEX Sectretariat Publication No. 26
• Ament, F., G. Haase and C. Simmer, 2001: Intialisierung von Wolken im Lokal-Modell aus Meteosatdaten, DACH-MT, Österr. Beitr. Meteorol. und Geophysik, Heft 27.
• Göber, M., R. Hagenbrock, F. Ament and A. Hense, 2003: Comparing mass consistent atmospheric budgets on an irregular grid: an arctic example. Q. J. R. Met. Soc., 129, 2383-2400, Part A, July 2003