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Aerials’ jump

A Presentation to FROST-14 Forecaster Training Workshop on 11 October 2012 Vancouver 2010 and Sochi 2012 Case Studies by George Isaac, Monika Bailey, Anna Glazer, Ivan Heckman, Laura Huang, and Jason Milbrandt Environment Canada. Aerials’ jump. Freestyle Skiing Ladies Aerials Final,

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Aerials’ jump

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  1. A Presentation to FROST-14 Forecaster Training Workshopon 11 October 2012 Vancouver 2010 and Sochi 2012 Case StudiesbyGeorge Isaac, Monika Bailey, Anna Glazer, Ivan Heckman, Laura Huang, and Jason MilbrandtEnvironment Canada

  2. Aerials’ jump Freestyle Skiing Ladies Aerials Final, 25 February 2010 Spectator grandstand Preparation of field-of-play 2 hours before training…

  3. Freestyle Skiing Ladies Aerials Final  February 24, 2010 Notes by Mindy Brugman as posted on SNOW-V10 Blog The event….Last night at the Cypress aerial site it began with drizzle and was quite foggy… We walked to the bright lights of the venue. There was no precipitation at the venue the entire competition.   The competition started at 1930 PST. The first pictures (not shown here) are taken at the start of the competition and you can see that the fog was much worse at the start. I stopped taking pictures since I could not see anything. Then it began to clear just near the end of the competiton – and I clicked a few pictures. You can detect a flying bug above the lights. Thats really the gold medal winner, Lydia Lassila, of Australia! Based on the event last night – I suspect ladies aerials may qualify as a new paralympic sport for the visually impaired.

  4. INTW Forecasts of Visibility at VOG

  5. ABOM Visibility LAM 1Kincluding 24 hours before ladies aerials

  6. ABOM Ceiling LAM 2.5K including 24 hours before ladies aerials

  7. February 16, 2012; Sochi Case Study SOCHI, Russia – Due to heavy overnight snowfall on the women’s World Cup downhill course in Sochi’s Rosa Khutor, the second training run scheduled for Thursday was canceled. The trees were flocked with snow Thursday morning and about 20 centimeters of fresh wet snow covered the course, which had been modified slightly from Wednesday’s training run. A thick layer of fog also covered the slopes of the Rosa Khutor ski area on Thursday.

  8. Temperature Obs

  9. Relative Humidity Obs

  10. Precipitation Rate ObsSites 46 & 65 no Precip

  11. Precipitation Rate Model and Obs

  12. INTW Example

  13. INTW Example

  14. NWP Models, Obs and INTW

  15. NWP Models, Obs and INTW

  16. NWP Models, Obs and INTW

  17. NWP Models, Obs and INTW

  18. ABOM Temperature: Upper Site 46

  19. ABOM Relative Humidity: Upper Site 46

  20. ABOM Temperature: Lower Site 65

  21. ABOM Relative Humidity: Lower Site 65

  22. Forecasters’ Whisker Plot - Temperature: Lower Site 65

  23. Summary • These were certainly two interesting events. Both present difficult challenges for the forecaster. • The first shows the value of high resolution data in time (one minute). • The second shows that you need fine scale models (EC or CMC at 1km). • The Sochi observations need improvement. Lack of visibility and precipitation measurements and strange wind measurements. • The Nowcast products were useful in both cases. • We (EC) learned a great deal by looking at this case.

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