THE EFFECT OF VERTICAL TRANSPORTS OF HEAT AND MOISTURE BY CUMULUS CONVECTION IN TYPHOON

Ding Yihui; Liu Yuezhen

doi:10.1007/BF02663598

Impact Factor: 5.8

Volume 4 Issue 3

Jul. 1987

Article Contents

Article > ADVANCES IN ATMOSPHERIC SCIENCES > 1987 > 4(3): 278-286

THE EFFECT OF VERTICAL TRANSPORTS OF HEAT AND MOISTURE BY CUMULUS CONVECTION IN TYPHOON

1.
Institute of Atmospheric Physics, Academia Sinica, Beijing,Institute of Atmospheric Physics, Academia Sinica, Beijing

doi: 10.1007/BF02663598

Abstract
References
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Abstract:
By utilizing the denser upper-air observations from the Okinawa region and Japanese islands during August 17－23, 1975, the vertical transports of heat and moisture by cumulus convection in the typhoon No. 7507 have been calculated. It is found that there exist a large apparent heat source (Q1) and a mois-ture sink (Q2) in the southern part of the typhoon at the disturbance, growing and mature stages. The magnitudes of the apparent heat source and moisture sink ace rather small, or turn into the apparent heat sink in the northern sector of the typhoon. In the southern part of the typhoon, the total cloud mass flux (Mc) is positive, whereas in the northern part of the typhoon Mc is negative. The above-mentioned distributions of Q1, Q2 and Mc agree well with the major cloud patterns.In the southern part of the typhoon, Q2 is positive because the drying effect is always larger than the evaporative cooling, whereas in the northern part of the typhoon, the opposite case is true because both the drying and evaporating effects of liquid water make a negative contribution to Q2.
References

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Manuscript History

Manuscript received: 10 July 1987

Manuscript revised: 10 July 1987

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

THE EFFECT OF VERTICAL TRANSPORTS OF HEAT AND MOISTURE BY CUMULUS CONVECTION IN TYPHOON

1. Institute of Atmospheric Physics, Academia Sinica, Beijing,Institute of Atmospheric Physics, Academia Sinica, Beijing

Manuscript received: 1987-07-10
Manuscript revised: 1987-07-10

Abstract: By utilizing the denser upper-air observations from the Okinawa region and Japanese islands during August 17－23, 1975, the vertical transports of heat and moisture by cumulus convection in the typhoon No. 7507 have been calculated. It is found that there exist a large apparent heat source (Q1) and a mois-ture sink (Q2) in the southern part of the typhoon at the disturbance, growing and mature stages. The magnitudes of the apparent heat source and moisture sink ace rather small, or turn into the apparent heat sink in the northern sector of the typhoon. In the southern part of the typhoon, the total cloud mass flux (Mc) is positive, whereas in the northern part of the typhoon Mc is negative. The above-mentioned distributions of Q1, Q2 and Mc agree well with the major cloud patterns.In the southern part of the typhoon, Q2 is positive because the drying effect is always larger than the evaporative cooling, whereas in the northern part of the typhoon, the opposite case is true because both the drying and evaporating effects of liquid water make a negative contribution to Q2.