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HyMeX – activity report

HyMeX – activity report. Véronique Ducrocq (HyMeX EC-ISC chair, Météo-France). Presented by Philippe Bougeault (Météo-France). http://www.hymex.org. THORPEX – ICSC-10, 3-5 October 2012. General Context.

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HyMeX – activity report

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  1. HyMeX – activity report Véronique Ducrocq (HyMeX EC-ISC chair, Météo-France) Presented by Philippe Bougeault (Météo-France) http://www.hymex.org THORPEX – ICSC-10, 3-5 October 2012

  2. General Context • During the last two years, HYMEX has been integrated into a wider international programme called « MISTRALS », but retained its specific objectives and organization • MISTRALS is about sustainable development in the Med Region • This has brought high political visibility and decent funding

  3. General Objectives of HYMEX • Quantify the water cycle in the Med Region, and the impact of climate change on water cycle, with due account of possible changes in deep oceanic convection in the Med • Improve prediction of intense precip events • Improve assessment of drought frequency and severity in the coming decades

  4. LOP/EOP/SOP agenda 2012-2013 : 2 field campaigns in Northwestern Mediterranean SOP1: Heavy precipitation and flash-flooding 5 Sept-6 Nov 2012 SOP2: Intense air-sea exchanges (severe winds, dense water formation) - 1 Feb- 15 March 2013 Regional climate simulations SOP1 is on-going…

  5. The SOP1 domain ~ 200 instruments deployed in France, Italy and Spain

  6. On-alert and mobile instruments Mobile platforms 4-6 gliders ~ 15 buoys and argo-floats 1 research vessel (1 month) 1 ship of opportunity (Algiers-Marseille) 1 radar (3 sites) and on alert 3 aircraft: - F20- RASTA radar, microphysics and dropsondes - ATR42 – WV Lidar, aerosols, turbulent fluxes - DO128 – turbulent fluxes 1 ship (air-sea fluxes, radiosounding, sweller, CTD) 15 boundary layer balloons 200 radiosoundings

  7. The CV hydrometeorological site

  8. The CI hydrometeorological site

  9. Field campaign coordination The HyMeX operation coordination center (HOC) is installed in Montpellier surroundings near the French aircraft airport and the near-upstream atmospheric supersite • Daily Morning Briefing (7/7), with l’Aquila, Palma, San Guiliano and Mahon in visioconference • a dedicated Météo-France forecaster at the HOC • The Météo-France SYNERGIE forecaster workstation in addition to a well-furnished field campaign website (sop.hymex.org)

  10. Field campaign coordination The HyMeX operation coordination center (HOC) is installed in Montpellier surroundings near the French aircraft airport and the near-upstream atmospheric supersite Live monitoring and guiding of aircraft trajectory HOC-aircraft chat during the flight ATR42 F20 IOP8- 28 Sep.@20 UTC

  11. The operational observations Real-time access to the surface weather stations for France, Spain and Italy in real-time as well as to the radar composite mm Hourly stations Accumulated rainfall 12-18 UTC, 28 Sept. (IOP8)

  12. The forecasting systems More than 25 numerical weather models, hydrological models and ocean models, Incl. a dedicated version of the Météo-France AROME NWP system over Western Mediterranean: Reflectivity@850hPa Winds@925hPa at 6 UTC, 24 Sep (IOP6) AROME-WMED AROME-WMED 30-h range Forecast 6-h range Forecast Radar composite

  13. The forecasting systems More than 25 numerical weather models, hydrological models and ocean models, Incl. two convection-permitting EPS prototypes AROME-EPS-2.5 km COSMO-EPS-2 km Probability – 24h rainfall > 10 mm 26 Sep (IOP7)

  14. DTS- HyMeX EUCOS DTS-HyMeX experiment: ECMWF and Météo-France sensitive areas computation and extra-observation requests for operational radiosoundings and AMDAR « Nadine» MSLP Valid time: 29 Sep.@18UTC Verif time: 30 Sep.@18 UTC Radiosoundings targetable at 18 UTC

  15. The first IOPs 8 IOPs during the first month. The HPE IOPs: IOP2 (12 Sep.): Heavy Precipitation event over North-east Italy Max 24h-rainfall: 160 mm in Northeast Italy, 220 mm in Croatia IOP6 (23-24 Sep): Heavy Precipitation over Southeastern France Max 24h-rainfall: 100 mm in Cévennes-Vivarais region IOP7 (26 Sep): Heavy Precipitation over Southeastern France Max 24h-rainfall: 100 mm in Cévennes-Vivarais region IOP8 (28 Sep) : Heavy Precipitation event in Spain (South and Eastern Spain) Max 24h-rainfall: 115 mm in Valencia region, 211 mm in Murcia region 10 fatalities + CAL/VAL IOPs : WV and aerosol Lidars, radar microphysical retrievials

  16. Some Quicklooks B A D F IOP2 – ATR42 flight In North Italy

  17. Some Quicklooks IOP6 - convective line IOP7 - quasi-stationary MCS RASTA radar reflectivity (nadir/zenith) F20 flight inside the convective system

  18. Some Quicklooks IOP6 - convective line 10-min Lightning Mapping Array data

  19. First Highlights • Weak predictability (large uncertainties of the long-range synoptic forecasts) due to Nadine Tropical cyclone over The Atlantic Ocean • but relevance of the AROME-WMED (2.5 km) forecast up to 48 hours. This is essential as timing and detailed flight plans have to be decided at least one day in advance. • The first SOP1 month is successful with 4 HPE IOPs covering France, Italy and Spain and different types of events: • A MCS ahead of a frontal system with embedded convection: IOP2 • A propagating convective line (frontal line): IOP6 • A quasi-stationary MCS ahead of a front: IOP7 • HPE associated with a Mediterranen depression: IOP8 • IOP7 particularly well documented: atmosphere, ocean and hydrological mobile platforms were activated simultaneously.

  20. Thanks for your attention

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