华北汛期降水量的多寡主要受其汛期大雨的频率和暴雨的贡献率影响。
The rainfall over North China during rainy seasons is mainly influenced by the heavy rain frequency and the excessively heavy rainfall contribution.
对长江三角洲汛期降水场进行试验比较，证明该方法能显著提高预测技巧。
A comparison experiment is conducted for the precipitation field over the Changjiang River Delta in flood season and the result indicates that the method can improve forecast greatly.
阿勒泰全区汛期降水平均集中度为0.205，平均集中期为第38.12侯。
The average PCD in Altay region was 0.205; the average PCP was the 38.12 pentad.
对1997年汛期降水预测所做的综合决策表明，该方法具有较好的综合决策能力。
This method has been proved to have quite good synthetic decision abilities through the synthetic decision making in the forecasts of the precipitation in the 1997's flood season.
山东省汛期降水在1979年前后发生一次明显的变化，1979年后降水显著减少。
The rainfall in Shandong Province during flood season witnessed an evident change in the year of 1979, after which there was an apparent decrease in the rainfall.
另外，闽南地区后汛期降水量与同期NINO西海区和黑潮海区的海温成正相关关系。
Otherwise, the normat correlation exists between the corresponding SST in west sea area of NINO and the Kuroshio and the summer rainfall in southern Fujian.
与青藏高原东北侧区汛期降水异常相关的主要海温型是赤道及其以南太平洋的“翘翘板”型。
The "seesaw" type of SSTA distribution is the dominate SSTA distribution in equator and south Pacific Ocean correlating with the floods season precipitation anomalies in TPNES.
针对长江中下游区域汛期降水模式预报误差，利用历史资料的有用信息订正模式预报误差。
A new approach to improve precipitation in the Yangtze River in summer by using the useful historical data is suggested.
1993年的汛期降水预报除了多年来的一套常规方法外，还利用了近两年的两个新研究结果。
Find season precipitation forecasts of 1993 were made with two new research results in the last two years except the routine methods many years ago.
结合模式的回报资料，利用降尺度模型对1991–2001年的华北汛期降水进行回报试验。
With the hindcasted predictors by general circulation models (GCMs), the downscaling model was used to hindcast July-August North China rainfall over 1991–2001.
对近10年来四川盆地汛期降水预测水平进行了定量评估，并与国家气候中心预测水平作了对比。
The precipitation forecast result in flood season of the last 10 years in Sichuan Basin is evaluated and compared with the NCC forecast result.
主要结论是：来自北方的天气系统影响是广东前汛期降水的基本条件，而后汛期降水则以来自东南方向的热带系统为主。
The conclusions are as follows. The availability of Weather systems north of the province is necessary for precipitation of the first rainy season in Guangdong .
指出武汉市主汛期降水存在40年、25年、10年、4—7年左右的周期振荡，并由降水的周期性推知本世纪初武汉市汛期将进入下一个少雨时段。
The main period about 40,25,10 and 4-7 years are found. Based on this, we can forecast the lack of rainfall in Wuhan city in initial stages of this century.
地表水主要来源于降水及客水，降水以汛期降雨为主，客水主要来源于老沙河、宋八疃、沙东干渠。
Surface water mainly from precipitation and off the water, precipitation, rainfall in the main flood season, water comes mainly from the old passenger Shahe, Song eight Tuan, sand east of the trunk.
结果表明：广东省全年及前、后汛期的降水量变化存在2~7年、10年和30年左右的周期；
The result shows that there exist cycles of 2-7ys, 10a and 30a in precipitation of annual, Apr. -Jun.
用该公式计算华南前汛期锋面云系自然降水效率，并探讨人工播云的可能性。
The formula was used to calculate the precipitation efficiency and the precipitation stimulation possibility of frontal clouds du-ring the first rainy season in South China.
用该公式计算华南前汛期锋面云系自然降水效率，并探讨人工播云的可能性。
The formula was used to calculate the precipitation efficiency and the precipitation stimulation possibility of frontal clouds du-ring the first rainy season in South China.
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