Articles | Volume 14, issue 9
Research article
02 Sep 2021
Research article |  | 02 Sep 2021

Evaluating the use of Aeolus satellite observations in the regional numerical weather prediction (NWP) model Harmonie–Arome

Susanna Hagelin, Roohollah Azad, Magnus Lindskog, Harald Schyberg, and Heiner Körnich

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Cited articles

Anderson, E. and Sato, Y. (Eds.): Fifth WMO Workshop on the Impact of Various Observing Systems on NWP, Sedona, Arizona, USA, 22–25 May 2012, WMO, 2012. a
A Consortium for Convection-scale modelling Research and Development (ACCORD): NWP model code, ACCORD [code], available at:, last access: 1 June 2020. a
Bengtsson, L., Andrae, U., Aspelien, T., Batrak, Y., Calvo, J., de Rooy, W., Gleeson, E., Hansen-Sass, B., Homleid, M., Hortal, M., Ivarsson, K.-I., Lenderink, G., Niemelä, S., Nielsen, K. P., Onvlee, J., Rontu, L., Samuelsson, P., Muñoz, D. S., Subias, A., Tijm, S., Toll, V., Yang, X., and Køltzow, M. O.: The HARMONIE-AROME Model Configuration in the ALADIN-HIRLAM NWP System, Mon. Weather Rev., 145, 1919–1935,, 2017. a, b
Berre, L.: Estimation of synoptic and meso scale forecast error covariances in a limited area model, Mon. Weather Rev., 128, 664–667, 2000. a
Bonavita, M., Isaksen, L., and Holm, E.: On the use of EDA background error variances in the ECMWF 4D Var, Q. J. Roy. Meteor. Soc., 138, 1540–1559,, 2012. a
Short summary
In this paper we study the impact of using wind observations from the Aeolus satellite, which provides wind speed profiles globally, in our numerical weather prediction system using a regional model covering the Nordic countries. The wind speed profiles from Aeolus are assimilated by the model, and we see that they have an impact on both the model analysis and forecast, though given the relatively few observations available the impact is often small.