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The duststorm in Tiobet: knowledge and gaps

The duststorm in Tiobet: knowledge and gaps. Xiang GAO Dept. Environ. Sci. & Eng., Fudan Univ. 4th Apr. 2005. Knowledge Events Chemical component Knowledge gaps Characteristics (geo., chem., etc. ) Source (causes, strength, etc.)

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The duststorm in Tiobet: knowledge and gaps

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  1. The duststorm in Tiobet: knowledge and gaps Xiang GAO Dept. Environ. Sci. & Eng., Fudan Univ. 4th Apr. 2005

  2. Knowledge Events Chemical component Knowledge gaps Characteristics (geo., chem., etc. ) Source (causes, strength, etc.) Potential to East Asia (route, strength, monitoring, etc. ) Approach

  3. 1. Knowledge Events: record map 张核真, 唐小萍. 西藏沙尘天气发生趋势及时空分布规律. 西藏科技, 2003,2: 52-53+62

  4. 1. Knowledge Events: hanging dune

  5. 1. Knowledge Events: mountain top sand sediment

  6. 1. Knowledge Events: satellite image

  7. 1. Knowledge Chemical components 张小曳, 沈志宝, 张光宇, 陈拓, 柳海燕. 青藏高原远源西风粉尘与黄土堆积. 中国科学(D辑), 1996, 26(2): 147-153 (Chinese version)

  8. 2. Knowledge gaps Geographic (spatial distribution?) Jie Xuan, Guoliang Liu, Ke Du. Dust emission inventory in Northern China. Atmospheric Environment, 2000, 34: 4565-4570

  9. 2. Knowledge gaps Chemical L.Makra, I.Borbely-Kiss, E.Koltay, Y. Chen. Enrichment of desert soil elements in Takla Makan dust aerosol. Nuclear Instruments and Methods in Physics Research B 189 (2002) 214–220

  10. 2. Knowledge gaps Chemical (for source apportionment?)

  11. 2. Knowledge gaps Source • Causes: • sand source? Yes, but reserves and distributing? • vertical transport? Not sufficient, but can be obtained • wind: west wind drift, but the strength? • Strength: • Frequency? area affected? and power?

  12. 2. Knowledge gaps Potential to East Asia • Route: • eastward, but through Chengdu or Kunming or Xining? • Strength: • how far can it affect? • the strength compared to northern sources? • Monitoring: • local PM sampling siting and source apportionment • satellite data analysis

  13. 3. Approach NSFC 2005 申请人：陈立民（复旦大学） Proposer: Limin CHEN 题目：西藏本地扬沙特征及其对东亚沙尘长距离传输的贡献研究 Title: Characteristics of Tibetan local dust storm and the contribution to long distance transportation of East Asian dust 单位：复旦大学、西藏自治区气候中心、华东师范大学 Institution: Fudan, Climate Center of Tibet, ECNU

  14. 3. Approach

  15. 3. Approach

  16. The End Thanks!

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