%0 journal article
%@ 0027-0644
%A Schaaf, B., Storch, H.v., Feser, F.

%D 2017
%J Monthly Weather Review
%N 10
%P 4303-4311 
%R doi:10.1175/MWR-D-17-0087.1
%T Does Spectral Nudging Have an Effect on Dynamical Downscaling Applied in Small Regional Model Domains?
%U https://doi.org/10.1175/MWR-D-17-0087.1
10 
%X In this article, we examine if spectral nudging is having an effect on simulations with model regions of the size of about 700 km x 500 km at mid-latitudes located mainly over flat terrain. We first compare two pairs of simulations, two runs each with and without spectral nudging, and find that the four simulations are very similar, without systematic or intermittent phases of divergence. Smooth fields, which are mainly determined by spatial patterns, such as air pressure show hardly any differences, while small-scale and heterogeneous fields such as precipitation vary strongly, mostly on the grid-point scale, irrespective if spectral nudging is employed or not. We conclude that the application of spectral nudging has little effect on the simulation when the model region is relatively small.