Journal
ATMOSPHERIC SCIENCE LETTERS
Volume 11, Issue 1, Pages 51-58Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asl.257
Keywords
forecast sensitivity; satellite observations; LAM; 3DVAR
Funding
- Norwegian Research Council
- IPY-THORPEX [175992/S30]
- EUMETSAT
- Hungarian Academy of Sciences
- Hungarian National Scientific Foundation [OTKA T049579]
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The sensitivity of the forecasts to different observation groups is evaluated by comparing moist total energy norm-based cost functions within the HARMONIE/Norway regional model. We quantify the quality loss associated to each observation type. The use of a localisation operator has allowed us to obtain results for the whole domain and for the area of continental Norway only, as well as for different vertical sub-regions of the atmosphere. Results show a prominent role of in situ observations for short-range forecasts, while for medium-range forecasts microwave satellite observations result in the largest impact, especially the AMSU-A channels peaking within the troposphere. Copyright (C) 2010 Royal Meteorological Society
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