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Case study initial conditions for the Lothar storm are provided for 12UTC on 24th December 1999on the OpenIFS ftp site. The Lothar depression developed initially on 24th December off the North American east coast at 35N.
The initial conditions are available at a
Available at resolutions: T159, T255, T511, T1023, T1279.
Download instructions
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% cd oifs % mkdir -p runs/lothar/t159 % cd runs % ftp ftp.ecmwf.int ftp> cd case_studies/lothar_storm ftp> binary ftp> get 1999122412_T159.tgz ftp> quit % tar zxf 1999122412_T159.tgz % ls 1999122412_T159.tgz ICMCLfqarINIT ICMGGfqarINIT ICMGGfqarINIUA ICMSHfqarINIT fqar.NODE.001_01 fqar.namelistfc |
Experiments
- What's the impact of the different 'lead times' on the forecast of the storm (i.e. starting from different dates)?
- What's the difference between forecasts started with the operational analysis of the time and the ERA-Interim analysis?
- What's the impact of resolution on the forecast of the storm?
code changes:
check 'ifsdata' link exists in directory
check that CRTABLEDIR in namelist (fort.4) is set correctly.
Further reading
This article in a recent ECMWF Newsletter has a description of student projects at the University of Stockholm using the Lothar storm case study.
A. Hannachi, J. Kjellsson, M. Tjernström, G. Carver, 2012, Teaching with the OpenIFS at Stockholm University, ECMWF Newsletter No. 134, Winter 2012/13.
Wikipedia article:
Cyclone Lothar and Martin, Wikipedia article, retrieved 17/12/14.
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