极端降水指数在北京地区减少非常显著，在四川盆地和雷州半岛则有较明显的增长。
Extreme precipitation index tend to decrease marked in Beijing area, but increase marked in Sichuan-Basin and Leizhou-Peninsula.
还以实际降水数据检验了降水强度的指数分布，在此基础上求出了模型的解。
Then based on the exponential distribution of precipitation the model was solved to give the equivalent precipitation of each level in the landscape.
对于林区植被，降水的年际变化对地表植被的影响比较小，森林区植被指数最高；
The vegetation in forest area, in which has the highest vegetation index, the impact of annual change of precipitation on surface vegetation was slight.
以海陆气压差定义的夏季风强度指数为依据，讨论了东亚夏季风年际异常与中国夏季降水的关系。
The relation between the interannual variation of the east Asian summer monsoon (EASM) and the summer precipitation in China is investigated in terms of the east Asian summer monsoon intensity index.
用西北地区140个气象站1971～2000年的春季降水、蒸发资料，计算了一种K干旱指数，并制定了干旱标准，分析了西北春季干旱的气候特征。
A kind of K drought index and its criterion are made by using spring precipitation and evaporation data of 140 stations in Northwest China from 1971-2000.
该指数可根据每日最新日降水值和日最高气温值的变化，及时给出影响干旱程度变化的主要气象因素的变化，使干旱监测具有实时性、敏感性和连贯性。
Because the change of the main factor of drought is given by the daytime precipitation and the highest temperature every day, the index is real-time, sensitive and consistent.
重点考虑降水和蒸发因素所构造的干湿指数可以更加客观地反映西北气候干湿演变特征。
With a view to the arid-wet index constructed by precipitation and evaporation synthetically, it may be objective to reflect the climate arid-wet evolution characteristics in northwestern area.
用暖池指数研究了热带西太平洋暖池对中国降水和沿海自然灾害的影响。
The impacts of Tropical Western Pacific Warm Pool on precipitation of China and disasters in China's coastal region have been discussed by using Warm Pool Index.
结果表明：STPNA（海温的太平洋北美遥相关型）指数距平累积和与江淮流域夏季降水有密切的相关，与全国雨带的类型也有较好的联系。
The results indicate that there is better relationship between the departure accumulation of the index STPNA (PNA teleconnection pattern of the North Pacific SST) and flood season rainfall in china.
较强的降水时段和有效的连续降水将大幅度消弱回波强度，并使其较长时间地维持在低指数状态，其相应能见度也大为改善。
Relatively strong rainfall period and effectively continuous rainfall can make the echo intensity decrease greatly and remain the low index for a long time, and the visibility turns well.
从土壤水分平衡原理出发，以降水量、温度和区域水文观测等因子为基础，建立了土壤干旱指数模型。
Based on the principle of soil water balance, including precipitation, temperature and other observations, this article built a model of soil drought index.
如果取冬麦生育期的累积植被指数和累积降水量的相对变率则其间的相关系数将提高。
If the relative variability of cumulative vegetation index and cumulative precipitation during the winter wheat growth cycle is adopted, the correlation coefficient between both is raised.
同期AO指数与云南春季气温呈负相关，与降水呈正相关\。
The AO index is negative correlation of the temperature in Yunnan in spring but positive correlation of the precipitation.
根据1996 ~ 2002年有关气象因素的数据，建立了气温、降水量与PVY病情指数的相关方程。
Based on the weather data from 1996 to 2002, the correlation equation between disease index of potato virus Y (PVY) and the temperature and rainfall was established.
本文从熵极大原理出发导出了在一次降水过程中降水强度与其历时为负指数关系。
Under a very simple constrain from the Maximum Entropy Principle, we found that an intensity-duration relation of Precipatation processes obeys negative exponent law.
利用1 951年至1 996年地面气象记录资料，计算了我国全年和季节降水量长期变化趋势特征指数。
By using surface data from 1951 to 1996, the long term change trend index of annual and seasonal precipitation of China is calculated.
结果表明：洪涝指数与降水距平百分率和降水标准化序列相关性显著。
The results showed that flooding index was significantly correlated with precipitation anomaly percentage and standardization precipitation.
结果表明：洪涝指数与降水距平百分率和降水标准化序列相关性显著。
The results showed that flooding index was significantly correlated with precipitation anomaly percentage and standardization precipitation.
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