华北夏季降水异常与从春到夏的持续环流异常密切相关。
There was consanguineous relationship between summer rainfall anomaly in North China and continual circulation anomaly from spring to summer .
当东亚夏季风强时，华北夏季降水偏多，同时长江中下游少雨；
The summer rainfall over NC was greater than normal when the EASM was strong, and while drought occurred along the middle and lower reaches of the Yangtze River.
结果表明：（1）从春季到夏季，东风强度与华北夏季降水具有显著而稳定的正相关关系。
The results are as follows:(1) The easterly intensity has a sustainable positive relationship with summer rainfall over North China from spring to summer.
这种海温异常分布型可通过夏季热带对流活动和中高纬大气环流与华北夏季降水异常产生联系。
This pattern of SSTA distribution is related to summer rainfall anomaly of North China by means of the tropical convection activity and general circulation in the middle and high latitude. iv.
结果表明：（1）通常在强东亚夏季风年华北夏季降水偏多，在弱东亚夏季风年华北夏季降水偏少。
The results of the analysis indicate that:1)North China has more summer rainfall during strong East Asian summer monsoon years but less summer rainfall during weak East Asian summer monsoon years.
利用NCAR CCM 3模式模拟了PD O不同位相对华北夏季降水的可能影响，模式模拟结果和诊断分析结果是基本一致的。
Impacts of different PDO phases on the summer precipitation in North China are simulated with NCAR CCM3. Results of simulation are approximately the same to the results of diagnosis.
结果表明，华北地区夏季水量丰、枯与气温、降水有较好的相关关系。
The result shows that there is a better relationship between the plentiful or short of the summer water resource in North China and the temperature and precipitation.
这些夏季风模态均对中国降水变化产生影响，特别是在华北和东北地区。
These EASM modes affect Chinese summer rainfall variation, particularly in north and northeast China.
王绍武， 黄建斌。 2006。中国华北与印度夏季降水遥相关的不稳定性[J]。自然科学进展，16（8）：980-985。
Wang S W, Huang J B. 2006. The instability relationship between summer rainfall over North China and India[J]. Prog Nat Sci, 16(8):980-985.
高原夏季风强(弱)时，印度全区及我国华北地区容易出现降水偏少(多)。
When the TPSM is strong (weak), the precipitation in all India and North China tends to be less (more) than normal.
利用华北和印度夏季降水资料，采用趋势分析、小波变换等方法，对两地区夏季风降水进行了对比分析。
Based on summer precipitation data, by using trend analysis, wavelet transform methods, the changes of summer rainfall in North China and in India were analyzed.
利用华北和印度夏季降水资料，采用趋势分析、小波变换等方法，对两地区夏季风降水进行了对比分析。
Based on summer precipitation data, by using trend analysis, wavelet transform methods, the changes of summer rainfall in North China and in India were analyzed.
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