在日本南部已经入梅雨期。
梅雨期长短直接关系农业收成，其成因有多说。
Duration of Plum rainy season directly affects crop yield duo to many reasons.
造成梅雨期降水量的异常主要是极端降水的异常。
So the anomalies of the total precipitation in MeiYu period is mainly caused by the extreme precipitation anomalies.
梅雨期暴雨的误差结构主要决定于暴雨形成中起主要作用的系统。
The structure of error in Meiyu heavy rainfall is mainly dependent on the sub-weather systems, which play the most important role in the formation of Meiyu rainfall.
气候资料表明梅雨期不仅出现于长江中下游区，也会出现于淮河流域中南部。
Climate data show that the Meiyu period exists not only in the mid-lower Yangtze Basin (MLYB), but also prevails in central-southern part of the Huaihe Basin.
用相应的梅雨期环流平均图及等熵面平均图，展示了各梅雨型之间的主要差异。
The main difference among the types is displayed by use of the corresponding mean circulation and isentropic charts for the season.
结果表明：应用该方程计算出的垂直运动的空间分布与该段梅雨期雨带的位置对应得较好。
The results show that the distribution of the vertical velocity calculated this equation can reflect the position of the rain belt properly.
1991年江淮梅雨期出现了三次暴雨过程，降水呈现显著的20-25天振荡，该周期明显短于海两期40天振荡的气候周期。
There were three heavy rainfall procedures over the Jianghuai basin in 1991, and the variance of rainfall showed 20 - 25 days oscillation remarkably, which was shorter than 40 days climate peried.
刘宋时期梅雨期到来的早晚和降水量的多少，受制于这种气候波动，同时也影响到当时水旱灾害的发生状况，是这种气温波动的集中表现。
The time and precipitation of Meiyu were controlled by the fluctuation, and it would influence the condition of floods and droughts, this is the concentrated expression of temperature fluctuation.
本文利用5层原始方程模式对1980年6月23—26日梅雨期暴雨期间副高位置的短期演变、副高结构的短期变化作了一次数值预报试验。
By using of the 5-level primitive equation model, the short range evolution of the subtropical ridge and the subtropical high structure for 23-26 June 1980 was experimented.
寿绍文， 励申申.1996.1991年梅雨期江淮地区持续性暴雨降水强度的变化及其成因[J]。南京气象学院学报，19（2）：199-203。
Shou Shaowen, Li Shenshen. 1996. Variation in rainfall intensity of 1991 heavy rain over Changjiang-Huaihe valleys and its formation[J]. J Nanjing Insti Meteor, 19(2):199-203.
寿绍文， 励申申.1996.1991年梅雨期江淮地区持续性暴雨降水强度的变化及其成因[J]。南京气象学院学报，19（2）：199-203。
Shou Shaowen, Li Shenshen. 1996. Variation in rainfall intensity of 1991 heavy rain over Changjiang-Huaihe valleys and its formation[J]. J Nanjing Insti Meteor, 19(2):199-203.
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