Plots from the Metview exercises
The gallery below shows example plots from all the practical exercises the participants were able to do with the Metview macros developed by Sandor Kertesz in ECMWF's forecast department.
Most of the plot types can be animated in time with Metview (not shown).
For more information, please contact: openifs-support@ecmwf.int.
Analyses
(click image for full-size)
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| MSLP, Z500 and track of Hurricane Nadine | PV/320K and MSLP | MSLP, 10m wind, Z500 & windspeed, SST | Cross-section through Hurricane Nadine and cut-off low showing PV, theta and wind vectors. Illustrates warm core of Nadine and cold core of cut-off. |
HRES (deterministic) forecast
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| MSLP & T2m, Z200 & windspeed, equiv. potential temp., 850hPa wind & T | Total precipitation | Z500 difference between HRES & analysis |
Ensembles
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| RMSE curves Z500 for ensemble | MSLP ensemble mean and spread compared to analysis | MSLP ensemble spaghetti plot |
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| Ensemble stamp map total precipitation over France | Ensemble difference stamp map of z500 | Comparing MSLP of perturbed ensemble member to analysis |
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| Difference maps of two ensemble members to analysis | Cumulative distribution function MSLP for ensemble forecast at Toulouse, France |
Principal component analysis and Clusters
After computing the EOFs a clustering can be applied to all of the above ensemble plots.
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EOF and PCA analyses of ensemble | Z500, ensemble mean of cluster 1 and 2 (top left & right respectively), compared to HRES & analysis bottom. | Stamp difference map of MSLP with clusters enabled. Maps are ordered according to which cluster they are in |
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| Ensemble spaghetti plot with clusters. Top left and top right show ensemble members in cluster 1 & 2 respectively. | Z500 RMSE curves with clusters. Ensemble members in each cluster are plotted separately. | Stamp map of total precip. with |
Probabilities
Two ensemble forecasts datasets were provided for the workshop. The 2012 operational ensemble and a reforecast using the operational ensemble of 2016.
 | Probabilities of total precipitation greater than 20mm for both ensembles at 3 different forecast times. |