1. Available products for Seasonal forecasting J.P. Céron – Direction de la Climatologie

2. RA VI Web sites (1) European Centre for Medium-Range Weather Forecasts (ECMWF) http://www.ecmwf.int/ http://www.ecmwf.int/products/forecasts/ http://www.ecmwf.int / research/demeter/data Met Office (United Kingdom) http://www.metoffice.com/research/seasonal/. http://www.metoffice.com/research/seasonal/nms/ (Password-protected section for NMSs and similar organisations) http://www.meto.govt.uk/weather/seasonal/index.html

3. RA VI Web sites (1) World Meteorological Centre Moscow (WMC) http://hmc.hydromet.ru (Password for access is to be provided on request) Météo France http://www-int.meteo.fr/scem/cbd/dev/ (Seasonal forecasts) http://www.meteo.fr/special/CLIM/clim_model.html (Model anomalies) ftp site (Password-protected section for NMSs, similar organisations and specific users)

4. RA VI Web sites (1) World Meteorological Organisation (WMO) http://http://www.wmo.ch/web/www/DPS/EPS- HOME/eps-home.htm#Long-range (EPS/LRF producing centres) http://www.wmo.ch/web/www/DPS/GDPS- Supplement5-AppI-4.html (Definitions of forecast ranges) http://www.wmo.ch/web/www/DPS/LRF-verification- systems.html (Verification system for Long-range forecast)

5. ECMWF Products Ocean Analysis Temperature anomaly along the equator (ocean cross-section), Sea level anomaly, Zonal wind stress anomaly 7-day mean, updated weekly Tropical belt Seasonal forecasts: Nino ’ s indices Nino 3, 3.4, 4 SST anomaly plumes

6. ECMWF Products Seasonal forecasts: Forecast maps Precipitation, Temperature at 2m, Mean sea level pressure, Sea surface temperature Ensemble mean value, Probability of below /above various thresholds Global and sub-areas Lead time from 1 to 3 months 3-month averages, updated monthly

7. Met Office Products Seasonal forecasts Temperature at 2m, Precipitations Ensemble mean value, Probability of below /above various thresholds Global Lead time from 1 to 3 months 3-month averages, updated monthly Forecasts for some specific regions and seasons (e.g. Sahel rainfall); winter NAO index SST for months 2-4, 3-5, 4-6; Nino3, Nino3.4, Nino4 SST anomaly ensemble plumes to 6 months ahead (planned for 2003).

8. Météo-France Products Seasonal forecasts Temperature at 850hPa, Precipitations, Geopotential Height at 500 hPa, Ensemble mean value and significance test, Probability of below /above various thresholds Global Lead time 1 month 3-month averages, updated monthly Model anomalies Precipitations,Temperature and geopotential at 850 hPa and 500 hPa, Sea Level Pressure, Temperature at 2 m, Wind speed at 10 m, Humidity at 700 hPa, Monthly, 3 and 12 overlapping monthly averages Monthly uptdated

9. Moscou Products Seasonal forecasts Precipitation, Z500, MSLP, T850, T2m Ensemble mean value and characteristics of uncertainty, Global Lead time 1 month 1 and 3-month ensemble mean, updated monthly

10. Other usefull Web sites http://www.cpc.ncep.noaa.gov/ http://www.cpc.ncep.noaa.gov/products/forecasts/ ftp://ftp.ncep.noaa.gov/pub/cmb/Forecasts/enso http://www.cpc.ncep.noaa.gov/data/indices/index. html http://iri.ldeo.columbia.edu/ http://iri.columbia.edu/climate/forecast/net_asmt/ http://iridl.ldeo.columbia.edu/maproom/.Global/

11. The ECMWF Web site http://www.ecmwf.int/ General public documentation public forecasts: “essential” WMO Members forecasts : “additional” Similar for Seasonal forecasts

12. The ECMWF Web site

39. The UKMO Web site http://www.metoffice.com/ Public and password protected area

40. The UKMO Web site

48. The Météo-France Web site http://www-int.meteo.fr/scem/cbd/dev/ Internal access at this stage

49. The Météo-France Web site

53. Model Climate Anomalies and Indices monthly computed for month, overlapping season and year (subjective comparison) Web site access : http://www.meteo.fr/special/CLIM/clim_model.html Follow-up – Climate and Model

54. Model Climate Anomalies and Indices