ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Analysis of the Moisture Transportation Characteristics on Summer Drought in Inner Mongolia
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Abstract:
Qualitative and quantitative measurement for atmospheric moisture is a n effective means of improving the Inner Mongolia drought study or forecast. Ado pting NCEP and observation precipitation data from 1961-2000, the relationship b etween the moisture distribution or transportation in East Asia and summer droug ht in Inner Mongolia is analyzed. The results show that Less moisture content at low level is an important factor of Inner Mongolia drought. On the other han d, because of Qingzang plateau terrain, it is difficult that the moisture from t he Bay of Bengal and South China Sea move northward, and it could not arrive in Inner Mongolia, which is another key factor. In addition, Affected by air circul ation, the less water vapor convergence is also an important factor of Inner Mon golia drought. The moisture flux at Qingzang plateau has prominently negative co rrelation with the precipitation of whole Inner Mongolia area. Moisture passage for the precipitation of West Inner Mongolia is from the Bay of Bengal to West I nner Mongolia. The passage for the precipitation of east Inner Mongolia is from South China Sea to northeast China.
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