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Meteorologisches Institut

Universität Hamburg

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MI > Forschungsabteilungen > Physikalische Meteorologie > Synthesis of Observations and Models

Prof. Dr. Felix Ament

Associate Professor
Head of "Synthesis of Observations and Models"
Head of BSc and MSc Meteorology

Phone +49 40 42838-3597; Fax +49 40 42838 5452
e-mail: felix.ament(at)we dont want spamzmaw.de
Geomatikum, Room 1635

Research interest

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

Publications

  • Tetzlaff, A.,   Kaleschke, L.,   Luepkes, C.   Ament, F.   Vihma, T. (2013): The impact of heterogeneous surface temperatures on the 2-m air temperature over the Arctic Ocean under clear skies in spring, Cryosphere, Vol. 7(1), pp. 153-166
  • Schomburg, A., V. Venema, F. Ament and C. Simmer, 2012: Disaggregation of screen-level variables in a numerical weather prediction model with an explicit simulation of subgrid-scale land-surface heterogeneity, Meteorology and Atmospheric Physics Vol. 116 (3-4),  pp. 81-94
  • Hermans, A., Ament, F., Geyer, B, Matthias, V., Quante, M. Rockel, B.(2012): Evaluation of Humidity, Clouds and Precipitation in COSMO-CLM and MM5 over Germany, Meteorologische Zeitschrift, Vol. 21(5), pp. 487-502
  • Schomburg, A., V. Venema, F. Ament, C. Simmer, 2012: Application of an adaptive radiative transfer scheme in a mesoscale numerical weather prediction model, QJRMS, 138  (662):   91-102   
  • Lengfeld, K., F. Ament, 2012: Observing Local-Scale Variability of Near-Surface Temperature and Humidity Using a Wireless Sensor Network, Journal of Applied Meteorology and Climatology, 51 (1), 30-41
  • 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

CV

since 2012Associate professor at the University of Hamburg
2008-2012Assistant professor at the University of Hamburg
2006-2008Postdoc at MeteoSwiss, Switzerland:
Project scientist "MAP D-PHASE"
2005-2006Project scientist at LMU Munich and University of Cologne:
QUEST (Quantitative Evaluation of Regional Precipitation Forecasts Using Multi-Dimensional Remote Sensing Observations)
2001-2005Project scientist at University of Bonn:
WABIMO (development of a Soil Water Balance Model, contract by German Weather Service)
4D-CLOUDS (analysis of four dimensional cloud structures)
EVA-GRIPS (Evaporation at the grid/pixel scale over Heterogeneous Land Surfaces)
CLIWANET (Cloud Liquid Water Network)
2001Visiting scientist at KNMI, The Netherlands:
CLIWANET (Cloud Liquid Water Network)
 
2006PhD (Meteorology) at the University of Bonn:
"Energy and moisture exchange processes over heterogeneous land-surfaces in a weather prediction model"
2001Diplom (Meteorology) at the University of Bonn:
"Initialisierung von Wolken aus Meteosat Beobachtungen im Lokal-Modell"
 
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