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Climate Variability and Weather Disasters —Awareness of the Changing Climate

Climate Variability and Weather Disasters —Awareness of the Changing Climate. Ms. JIAO Meiyan Department of Forecasting Services and Disaster Mitigation China Meteorological Administration December, 7 2007. Geneva. Outline: Weather Disasters in China

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Climate Variability and Weather Disasters —Awareness of the Changing Climate

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  1. Climate Variability and Weather Disasters—Awareness of the Changing Climate Ms. JIAO Meiyan Department of Forecasting Services and Disaster Mitigation China Meteorological Administration December, 7 2007. Geneva

  2. Outline: • Weather Disasters in China • Climate Variability (in terms of temperature, precipitation) and the Impact • Cases of Extreme Events

  3. The Distribution of Meteorological Disasters in China Typhoon Rananim in 2004 lasting 108 hours Weather Disasters in China, in terms of Frequency, Variety and Severity.

  4. Major Weather Disasters in China( in Percentage) TCs and Hail Others Flooding Drought

  5. The Losses by Meteorological Disasters Losses per year: 178 billion RMB Death per year: 4427 death Economic Losses in Portion of GDP: 1%-3%

  6. The Warmest Climate 12.1℃ Normal temp. 10.8℃ Monthly Mean Temperature Variations in China 1951-2006 annual mean temperature anomaly and that of the wintertime, both relative to the mean of 1961-1990. The whole year Wintertime (DJF)

  7. Decrease Increase Trend of the cold surge occurrences during 1961-2005

  8. Days Annual hot days (Tmax>35oC) in Chinaduring 1961-2006

  9. Drought Frequency (1961-2006) in China More than 70%

  10. Impact on the Agriculture Annual acreage of the crop suffered from the drought in China during 1951-2006 Suffered from the drought and with the reduction of the crop production Influenced by the drought Acreage (!04 Hectare)

  11. Reduction ingrain productionin China due to the droughts Reduction (104 ton)

  12. Annual mean Precip. (mm) (1971-2000) Change (percentage) in annual mean Precip. During 1957-2006 Trend of Precipitation Reduced by 60%

  13. Trend of the heavy rainfall in China Increase significantly decrease significantly Increase decrease Trends in the heavy rainfall days in the mainland of China in recent 50 Yrs

  14. Rainy days with R>50mm 54 96 98,99 69 80 61-70ys: 2.2d 71-80ys: 2.1d 81-90ys: 2.4d 91-00ys: 3.1d

  15. Annual Flooding Frequency (1961-2006) More than 70%

  16. Annual acreage of the crop suffered from the flooding Suffered from flooding Suffered from flooding with the reduction of crop Acreage (!04 Hectare) 1951-2006年中国年农作物雨涝受灾及成灾面积历年变化

  17. Major typhoon tracks for China

  18. Number of TC landing in China during 1961-2006 Number of strong TC (wind speed >32.7m/s) landing in China during 1961-2006

  19. Economic loss caused by TCs in China during 1982-2006

  20. Cases of Extreme Events Sudden Severe Weather Occurs Frequently An Extreme Rain Storm in Jinan, Capital of Shandong Provence Hourly Maximum Rainfall 151 mm Caused 37 Deaths

  21. Lightening Event Children injured and Death by lightening every year A heavy lightening event hit a school in the rural area and caused 7 children death and 43 people injured. Lightening Event Monitoring

  22. Drought Related Disasters Rain-making Actions

  23. Heat Wave Events The number of days with heat waves The max temperature (heat waves) hits the historical records in many cities

  24. Thanks 谢谢！

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