431 citations · 455 across the 6 of their papers we have counts for
6 papers
Impact of Small-Scale Gravity Waves on Tracer Transport
Irmgard Knop, Stamen Dolaptchiev, Ulrich Achatz
Small-scale gravity waves, with horizontal wavelengths of up to a few hundred kilometers and vertical wavelengths of up to a few kilometers, play a crucial role in atmospheric trac…
A Constrained Spectral Approximation of Subgrid-Scale Orography on Unstructured Grids
Ray Chew, Stamen Dolaptchiev, Maja-Sophie Wedel +1
The representation of subgrid-scale orography is a challenge in the physical parameterization of orographic gravity-wave sources in weather forecasting. A significant hurdle is enc…
Interactions between gravity waves and cirrus clouds: asymptotic modeling of wave induced ice nucleation
Stamen I. Dolaptchiev, Peter Spichtinger, Manuel Baumgartner +1
We present an asymptotic approach for the systematic investigation of the effect of gravity waves (GW) on ice clouds formed through homogeneous nucleation. In particular, we consid…
Stochastic subgrid-scale parameterization for one-dimensional shallow water dynamics using stochastic mode reduction
Matthias Zacharuk, Stamen I. Dolaptchiev, Ulrich Achatz +1
We address the question of parameterizing the subgrid scales in simulations of geophysical flows by applying stochastic mode reduction to the one-dimensional stochastically forced…
Parametrization of stochastic multiscale triads
Jeroen Wouters, Stamen I. Dolaptchiev, Valerio Lucarini +1
We discuss applications of a recently developed method for model reduction based on linear response theory of weakly coupled dynamical systems. We apply the weak coupling method to…
Stochastic Parameterization: Towards a new view of Weather and Climate Models
Judith Berner, Ulrich Achatz, Lauriane Batte +23
The last decade has seen the success of stochastic parameterizations in short-term, medium-range and seasonal forecasts: operational weather centers now routinely use stochastic pa…