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Usage and experience of ALADIN by forecasters and end - users in Czech Republic

This article discusses the usage and experience of the ALADIN NWP model by forecasters and end-users in the Czech Republic. It explores the various products and features of the model, including graphical and tabular forecasts, meteograms, weather warnings, and mobile applications. The article also compares ALADIN with other NWP models and human forecaster predictions.

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Usage and experience of ALADIN by forecasters and end - users in Czech Republic

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  1. Usage and experience of ALADIN by forecasters and end-users in Czech Republic ALADIN Forecasters meeting (Ankara, Turkey;10 - 11 SEPTEMBER2014) Tomas Mejstrik tomas.mejstrik@chmi.cz

  2. Outline • NWP model ALADIN is used for wide variety of products in CHMI • Forecasters uses Visual Weather environment to make most of weather forecasts and products • Output from ALADIN in graphical, tabular form • Compare ALADIN model and other NWP model with forecaster

  3. Usage of model ALADIN • Use of ALADIN for making weather warnings • Special forecasts for energetic companies • Tabular and graphical forecast • Meteograms • Mobile applications

  4. Common usage Meteogram

  5. Weather warnings Instability parameters

  6. Weather warnings Instability parameters

  7. Weather warnings Convective parameters

  8. Tabular forecasts Simple parameters Advanced parameters FXCZ85 OKSC 021100 dd/mm/rrrrhh:mm         T2m   FF10   DD10    NB    NBhNBmNBl ----------------------------------------------------------------------02/09/2014 06:00       12.6    3.1  324.6   0.99   0.87   0.97   0.73 02/09/2014 07:00       13.2    3.4  327.5   0.99   0.84   0.97   0.76 02/09/2014 08:00       13.9    3.5  329.2   0.99   0.84   0.97   0.81  02/09/2014 09:00       14.5    3.6  332.1   1.00   0.85   0.97   0.86 ……… 04/09/2014 09:00       17.0    3.0   74.5   0.91   0.70   0.56   0.51 04/09/2014 10:00       18.0    3.1   77.8   0.91   0.68   0.57   0.50 04/09/2014 11:00       18.7    3.1   78.4   0.92   0.71   0.59   0.48  04/09/2014 12:00       19.3    3.2   79.0   0.94   0.77   0.61   0.45       comment:  T2m ..... Temperature 2 m aboveground[°C]           FF10 .... Wind speed v 10 m [m/s]           DD10 .... Winddirection v 10 metrech [stupne]           NB ...... Totalcloudiness [%] NBh ..... Highlevelcloudiness  [%] NBm ..... Medium levelcloudiness [%] NBl..... Lowlevelcloudiness  [%] FXCZ62 OPIN 021030 02.09.2014 na 03.09.2014 na 04.09.2014 na 05.09.2014 RÁNO ODPOLEDNE RÁNO ODPOLEDNE RÁNO ODPOLEDNE MĚSTO POC RR% TEP POC RR% TEP DD FF TP POC RR% TEP POC RR% TEP DD FF Praha M 0 13 Z 10 22 SV 3 23 Z 10 14 O 10 24 V 4 Kladno - - 12 Z 10 21 SV 2 23 - - 13 O 10 24 V 4 Mladá Boleslav - - 12 O 20 22 SV 2 23 - - 13 O 0 24 V 4 Příbram - - 10 ZD 30 20 SV 4 20 - - 11 OD 30 22 V 4 Kolín - - 13 Z 10 23 SV 4 23 - - 14 P 10 25 V 4 Nymburk - - 13 Z 10 23 SV 5 22 - - 14 P 0 25 V 4 Benešov - - 12 Z 20 21 SV 4 21 - - 12 OD 30 22 V 3 Beroun - - 11 Z 20 22 SV 3 23 - - 12 Z 20 24 V 4

  9. Tabular forecasts Storm forecast parameters

  10. Mobile application Meteor • Suitable for smartphones and other Andriod equipment • Officially supported by CHMI • Forecasted parameters: temperature, humidity, pressure, wind, precipitation… • Actual meteogram based on position of user • FREE, cca 9700 users, work only in CZ area

  11. Aladin vs other NWP model vs human forecaster • Simple verification method, comparable with method used for verification human made forecasts • Statistic period: 01/2013 – 06/2014 • At most forecasted parameter is forecaster still better, than any NWP model…

  12. Thank you! ALADIN Forecasters meeting (Ankara, Turkey;10 - 11 SEPTEMBER2014) Tomas Mejstrik tomas.mejstrik@chmi.cz

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