Articles | Volume 21, issue 1
Nonlin. Processes Geophys., 21, 303–323, 2014
https://doi.org/10.5194/npg-21-303-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue: Ensemble methods in geophysical sciences
Research article 26 Feb 2014
Research article | 26 Feb 2014
A hybrid variational ensemble data assimilation for the HIgh Resolution Limited Area Model (HIRLAM)
N. Gustafsson et al.
Related authors
V. Blažica, N. Gustafsson, and N. Žagar
Geosci. Model Dev., 8, 87–97, https://doi.org/10.5194/gmd-8-87-2015, https://doi.org/10.5194/gmd-8-87-2015, 2015
Short summary
Short summary
The paper deals with the comparison of the common periodization methods used to obtain spectral fields of limited-area models for numerical weather prediction. The focus is on the impact the methods have on the spectra of the fields. The results show that detrending and DCT have little impact on the spectra, as does the Boyd method for extension zone. For the ALADIN and HIRLAM methods, the impact depends on the width of the extension zone - the wider the zone, the larger impact on the spectra.
N. Gustafsson and J. Bojarova
Nonlin. Processes Geophys., 21, 745–762, https://doi.org/10.5194/npg-21-745-2014, https://doi.org/10.5194/npg-21-745-2014, 2014
V. Blažica, N. Gustafsson, and N. Žagar
Geosci. Model Dev., 8, 87–97, https://doi.org/10.5194/gmd-8-87-2015, https://doi.org/10.5194/gmd-8-87-2015, 2015
Short summary
Short summary
The paper deals with the comparison of the common periodization methods used to obtain spectral fields of limited-area models for numerical weather prediction. The focus is on the impact the methods have on the spectra of the fields. The results show that detrending and DCT have little impact on the spectra, as does the Boyd method for extension zone. For the ALADIN and HIRLAM methods, the impact depends on the width of the extension zone - the wider the zone, the larger impact on the spectra.
N. Gustafsson and J. Bojarova
Nonlin. Processes Geophys., 21, 745–762, https://doi.org/10.5194/npg-21-745-2014, https://doi.org/10.5194/npg-21-745-2014, 2014
Special issue