华南沿海五月份海陆风温压场特征与降水
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FEATURES OF TEMPERATURE AND PRESSURE F1ELDS WITH RESPECT TO SEA/LAND BREEZES AND PRECIPITATION ALONG THE COAST OF SOUTH CH1NA DUR1NG MAY
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    摘要:

    本文分析了华南沿海1978年5月份与海陆风相对应的温压场特征。结果发现,海陆风风向与温度距平和气压距平等值线近于垂直,由冷高指向暖低。在沿海地区,温压梯度最强,海陆风也最大。从海陆风温压场建立至海陆风形成时间短促。海陆风对温压梯度具有削弱作用,因而海陆风制约了海陆风本身的发展。此外,本文还发现,海陆风辐合场与华南沿海降水中心有密切的关系。

    Abstract:

    Aanlysis has been made of the features of temperature and pressure fields with respect to sea/land breezes along the coast of South China during May, 1978. It is shown from the analysis that the vector of sea/land breezes is approximately perpendicular to the isolines of temperature and pressure anomalies, pointing from the cold high to the warm low. Both temperature and pressure have the greatest gradients along the coastal area with sea/land breezes reaching the maximum. The transitional period from the building-up of temperature and pressure fields with respect to sea/land breezes to the formation of the latter is very brief. It is found that sea/land breezes have an abating effect on the temperature and pressure fields, thus setting a limit to their own development. It is also found that the convergence field due to sea/land breezes is closely related to the center of precipitation along the coast of South China.

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