ANALYSIS OF WATER VAPOR TRANSPORTATION OVER THE UPPER REACHES OF THE CHANGJIANG RIVER AND ITS RELATION WITH THE RUN-OFF IN 1997 AND 1998

Ma Lan; Xu Xi; Gao Yun; Ma Zailan

Vol.11, NO.4, 2000

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2000 > 11(4): 491-498

Ma Lan, Xu Xi, Gao Yun, et al. Analysis of water vapor transportation over the upper reaches of the Changjiang River and its relation with the run-off in 1997 and 1998. J Appl Meteor Sci, 2000, 11(4): 491-498.

Citation:

Ma Lan, Xu Xi, Gao Yun, et al. Analysis of water vapor transportation over the upper reaches of the Changjiang River and its relation with the run-off in 1997 and 1998. J Appl Meteor Sci, 2000, 11(4): 491-498.

Citation:

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ANALYSIS OF WATER VAPOR TRANSPORTATION OVER THE UPPER REACHES OF THE CHANGJIANG RIVER AND ITS RELATION WITH THE RUN-OFF IN 1997 AND 1998

National Satellite Meteorological Center, Beijing 100081

Received Date: 2000-02-02
Rev Recd Date: 2000-03-14
Publish Date: 2000-11-30

Abstract

Abstract

Using the radiosonde data in summer of 1997 to 1998, the water vapor flux over the upper reaches of the Changjiang River from 925 hPa to 200 hPa are calculated. The relationship between the inflow of water vapor and the run-off over the area and contrast analysis between 1997 and 1998 is made based on the five-day and ten-day averages of net inflow water vapor. The statistical dependence is described and the relation between water vapor transportation and circulation situation is discussed.
- Water vapour transportation;
- Run off;
- Upper reaches of the Changjiang River

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References(10)

Figures and Tables

图 1 计算区域图

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图 2 1997年7~8月和1998年7~8月长江上游地区水汽输送净量 (a) 和径流量 (b)

(实线为1998年, 虚线为1997年. a中, > 0表示水汽净输入; < 0表示水汽净输出.单位:×10⁹ t)

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图 3 1998年7~8月平均水汽通量在 (a) 南 (b) 东 (c) 北 (d) 西四边垂直剖面上的分布

(实线表示输入, 虚线表示输出)

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图 4 1998年盛夏季节云迹风场平均图

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图 5 1997年盛夏季节云迹风场平均图

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图 6 1997年7~8月平均水汽通量在 (a) 南 (b) 东 (c) 北 (d) 西四边垂直剖面上的分布

(说明同图 3)

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表 1 长江上游地区各边水汽输入输出占该年7、8月合计四边总输入输出的百分比

References

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