Publications


2018

Sutherland, B.R., Achatz, U., Caulfield, C.P., and J.M. Klymak 2019: Recent Progress in Modelling Imbalance in the Atmosphere and Ocean. Phys. Rev.  Fluids, accepted (pdf)

Pieroth, M., Dolaptchiev, S.I., Zacharuk, M., Heppelmann, T., Gritsun, A., Achatz, U. 2018: Climate-Dependence in Empirical Parameters of Subgrid-Scale Parameterizations using the Fluctuation-Dissipation Theorem. J. Atmos. Sci., accepted (pdf)

Zacharuk, M., Dolaptchiev, S.I., Achatz, U. and Timofeyev, I. 2018: Stochastic subgrid-scale parameterization for one-dimensional shallow water dynamics using stochastic mode reduction. Quart. J. Roy. Met. Soc., accepted (pdf)

Wilhem, J., Akylas, T.R., Bölöni, G., Wei, J., Ribstein, B., Klein, R., and U. Achatz 2018: Interactions between Meso- and Sub-Mesoscale Gravity Waves and their Efficient Representation in Mesoscale-Resolving Models, J. Atmos. Sci., 75, 2257-2280 (pdf)

Hien, S., Rolland, J., Borchert, S., Schoon, L., Zülicke, C., and U. Achatz, 2018: Spontaneous inertia-gravity wave emission in the differentially heated rotating annulus experiment. J. Fluid Mech., 838, 5-41. (pdf)

2017

Schlutow, M., Klein, R., and U. Achatz 2017: Finite-amplitude gravity waves in the atmosphere: traveling wave solutions, J. Fluid Mech., 826, 1034-1065 (pdf)

Achatz, U., Ribstein, B., Senf, F., and R. Klein 2017: The interaction between synoptic-scale balanced flow and a finite-amplitude mesoscale wave field throughout all atmospheric layers: Weak and moderately strong stratification. Quart. J. Roy. Met. Soc., 143, 342–361 (pdf)

Berner J., Achatz U., Batte L., Bengtsson L., de la Cámara A., Christensen H., Colangeli M, Coleman D., Crommelin D., Dolaptchiev S.I., Franzke C., Friederichs P., Imkeller P., Järvinen H., Juricke S., Kitsios V., Lott F., Lucarini V.; Mahajan S., Palmer T., Penland C.,  Sakradzija M., von Storch J.-S., Weisheimer A., Weniger M., Williams P.,  and J.-I. Yano 2017: Stochastic parameterization: Towards a new view of weather and climate models. Bull. Am. Met. Soc., 98, 565 - 587 (pdf)
 

2016

Wouters, J., Dolaptchiev, S.I., Lucarini. V., and U. Achatz 2016: Parametrization of stochastic multiscale triads. Nonlin. Processes Geophys., 23, 435–445 (pdf)

Bölöni, G.,  Ribstein, B., Muraschko, J., Sgoff, C., Wei, J. and U. Achatz 2016: The interaction between atmospheric gravity waves and large-scale flows: an efficient description beyond the non-acceleration paradigm. J. Atmos. Sci., 73, 4833-4852 (pdf)

Ribstein, B. and  U. Achatz 2016: The interaction between gravity waves and solar tides in a linear tidal model with a 4D ray-tracing gravity-wave parameterization. J. Geophys. Res., doi:10.1002/2016JA022478 (pdf)

Tort M., Ribstein B., and V. Zeitlin 2016: Symmetric and asymmetric inertial instability of zonal jets on the f -plane with complete Coriolis force. J. Fluid Mech., 788, 274-302

2015

Düben, P. and Dolaptchiev, S. I., 2015: Rounding errors may be benecial for simulations of
atmospheric  flow: Results from the forced 1D Burgers equation. Theor. Comp. Fluid Dyn., 29, 311-328. (pdf)

Ribstein, B., Achatz, U., and F. Senf, 2015: The interaction between Gravity Waves and Solar Tides: Results from 4D Ray Tracing coupled to a Linear Tidal Model, J. Geophys. Res., doi:10.1002/2015JA021349 (pdf)

Remmler, S., Hickel, S., Fruman, M.D., and U. Achatz, 2015: Validation of Large-Eddy Simulation Methods for Gravity-Wave Breaking. J. Atmos. Sci., 72, 3537-3562 (pdf)

Remmler, S., Fruman, M.D., Achatz, U. and S. Hickel, 2015: Numerical simulation of breaking gravity waves. In "Direct and Large-Eddy Simulation IX", eds. Fröhlich, J., Kuerten, H., Geurts, B.J. and V. Armenio, Springer, 413-418

Remmler, S., Hickel, S., Fruman, M.D. and U. Achatz, 2015: Direct numerical simulation of breaking atmospheric gravity waves, in "High Performance Computing in Science and Engineering ‘14", Eds. Nagel, W.E., Kröner, D.H., and M.M. Resch, Springer, 593-607

Muraschko, J. , Fruman, M. D. , Achatz, U. , Hickel, S., and Y. Toledo, 2015: On the application of WKB theory for the simulation of the weakly nonlinear dynamics of gravity waves. Q. J. Roy. Meteorol. Soc., 141, 676–697 (pdf)

2014

Borchert, S., Achatz. U., Remmler, S., Hickel, S., Harlander, U., Vincze, M., Alexandrov, K.D., Rieper, F., Heppelmann, T. and S.I. Dolaptchiev, 2014: Finite-volume models with implicit subgrid-scale parameterization for the differentially heated rotating annulus. Met. Zeitschr., 23, 561–580 (pdf)

Vinzce. M.,  Borchert, S., Achatz, U. , von Larcher, T., Baumann, M., Liersch, C., Remmler, S., Beck, T., Alexandrov, K., Egbers, C., Fröhlich, J., Heuveline, V., Hickel, S., and Harlander, U., 2014: Benchmarking in a rotating annulus: a comparative experimental and numerical study of baroclinic wave dynamics. Met. Zeitschr., 23, 611–635 (pdf)

Fruman, M.D., Remmler, S., Achatz, U. und S. Hickel, 2014: On the construction of a direct numerical simulation of a breaking inertia-gravity wave in the upper mesosphere. J. Geophys. Res., 119, 11,613--11,640 (pdf)

Borchert, S., U. Achatz and M.D. Fruman, 2014: Gravity Wave Emission in an Atmosphere-like Configuration of the Differentially Heated Rotating Annulus Experiment. J. Fluid Mech., 758, 287-311 (pdf)

B. Ribstein, V. Zeitlin and A-S Tissier. "Barotropic, baroclinic, and inertial instabilities of the easterly Gaussian jet on the equatorial -plane in rotating shallow water model". Phys. Fluids, 26, 056605 (2014)

2013

Rieper, F., Achatz, U. und Klein, R., Range of validity of an extended WKB theory for atmospheric gravity waves: one-dimensional and two-dimensional case. J. Fluid Mech., 729, 330-363

Rieper, F., Hickel, S., and U. Achatz , A conservative integration of the pseudo-incompressible equations with implicit turbulence parameterization. Mon. Wea. Rev., 141, 861-886 (pdf) 

Dolaptchiev, S.I., Achatz U. and I. Timofeyev , Stochastic closure for local averages in the finite-difference discretization of the forced Burgers equation. Theor. Comput. Fluid Dyn. 27, 297-317 (pdf)

Dolaptchiev, S.~I., Timofeyev, I. and Achatz, U., Subgrid-scale closure for the inviscid Burgers-Hopf equation, Commun. Math. Sci., 11, 757–777 (pdf)

Dolaptchiev, S. I. and Klein, R., A multi-scale model for the planetary and synoptic motions in the atmosphere, J. Atmos. Sci., 70, 2963-2981 (pdf)

S. Remmler, M.D. Fruman, S. Hickel (2013) Direct numerical simulation of a breaking inertia-gravity wave. Journal of Fluid Mechanics., 722, 424-436.

Achatz, U., U. Löbl, S. Dolaptchiev and A. Gritsun, Fluctuation-Dissipation Supplemented by Nonlinearity: A Climate-Dependent Sub-Grid-Scale Parameterization in Low-Order Climate Models. J. Atmos Sci., 70, 1833-1846 (pdf)

2012

Achatz, U., F. Senf and N. Grieger, Solar diurnal tides in the middle atmosphere: Interactions with the zonal mean flow, planetary waves and gravity waves. In Climate and weather 
of the sun-earth system (CAWSES):Highlights from a priority program. Ed. F.-J. Lübken. Springer: Dordrecht.

Fruman, M. D., U. Achatz , Secondary instabilities in breaking inertia-gravity waves. J. Atmos. Sci. 69, 303-322 (pdf)

2011

Senf, F. and Achatz, U. On the impact of middle-atmosphere thermal tides on the propagation and dissipation of gravity waves. J. Geophys. Res. 116, D24110, doi:10.1029/2011JD015794 (pdf)

Rieper, F., A low Mach number fix for Roe's approximate Riemann solver. Journal of Computational Physics, Volume 230, Issue 13, 10 June 2011, Pages 5263-5287

2010

Dellacherie S., Omnes P., Rieper, F., The influence of cell geometry on the Godunov scheme applied to the linear wave equation. J. Comp. Phys. 229 (2) (2010) 221-232

Rieper, F., On the dissipation mechanism of upwind-schemes in the low Mach number regime: a comparison between Roe and HLL. J. Comp. Phys. 229 (2) (2010) 221-232

Klein, R., Achatz, U., Bresch, D Knio, O. M., Smolarkiewicz, P. K., Regime of Validity of Soundproof Atmospheric Flow Models. J. Atmos. Sci., 67, 3226–3237

Achatz, U., Klein, R.,Senf, F., Gravity waves, scale asymptotics and the pseudo-incompressible equations. J. Fluid Mech., 663, 120-147 (pdf)

2009

Ménesguen, C., Hua, B. L., Fruman, M. D., Schopp, R., Intermittent layering in the Atlantic Equatorial Deep Jets. J. Mar. Res., 67, 347-360

Ménesguen, C., Hua, B. L., Fruman, M. D., Schopp, R., Dynamics of the combined Extra-Equatorial and Equatorial Deep Jets in the Atlantic. J. Mar. Res., 67, 323-346

Fruman, M. D., Equatorially bounded zonally propagating linear waves on a generalized β plane. J. Atmos. Sci., 66, 2937–2945

Fruman, M. D., Hua, B. L., Schopp, R., Equatorial zonal jet formation through the barotropic instability of low-frequency mixed Rossby-gravity waves, equilibration by inertial instability, and transition to super-rotation. J. Atmos. Sci., 66, 2600-2619

2008

Achatz, U., Grieger, N., Schmidt, H., Mechanisms controlling the diurnal solar tide: Analysis using a GCM and a linear model. J. Geophys. Res.,113, A08303, doi:10.1029/2007JA012967 (pdf)

2007

Achatz, U., Gravity-wave breaking: Linear and primary nonlinear dynamics. Adv. Space Res., 40, 719-733 (pdf)

Achatz, U., Modal and nonmodal perturbations of monochromatic high-frequency gravity waves: Primary nonlinear dynamics. J. Atmos. Sci., 64, 1977- 1994 (pdf)

Achatz, U., The primary nonlinear dynamics of modal and nonmodal perturbations of monochromatic inertia-gravity waves. J. Atmos. Sci., 64, 74-95 (pdf)