The duststorm in Tiobet:

knowledge and gapsXiang GAODept. Environ. Sci. & Eng., Fudan Univ.

4th Apr. 2005

KnowledgeEvents

Chemical component

Knowledge gapsCharacteristics (geo., chem., etc. )

Source (causes, strength, etc.)

Potential to East Asia (route, strength, monitoring, etc. )

Approach

1. KnowledgeEvents: 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

1. KnowledgeEvents: hanging dune

1. KnowledgeEvents: mountain top sand sediment

1. KnowledgeEvents: satellite image

1. KnowledgeChemical 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)

2. Knowledge gapsGeographic (spatial distribution?)

Jie Xuan, Guoliang Liu, Ke Du. Dust emission inventory in Northern China. Atmospheric Environment, 2000, 34: 4565-4570

Chemical

2. Knowledge gaps

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

Chemical (for source apportionment?)

2. Knowledge gaps

Source

2. Knowledge gaps

Causes:

1. sand source? Yes, but reserves and distributing?

2. vertical transport? Not sufficient, but can be obtained

3. wind: west wind drift, but the strength?

Strength:

Frequency? area affected? and power?

Potential to East Asia

2. Knowledge gaps

Route:eastward, but through Chengdu or Kunming or Xining?

Strength:1. how far can it affect? 2. the strength compared to northern sources?

Monitoring:1. local PM sampling siting and source apportionment 2. satellite data analysis

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

3. Approach

3. Approach

The End

Thanks!