| 1. | The distribution of jianghuai valleys the may - july period precipitation anomalies shows different phase in different years 5 7月降水异常的空间分布在不同年代有不同的位相分布特征。 |
| 2. | The periodic variation of ssta of the two key regions combine reflect vary length periodic variation of flood season precipitation anomalies in liaoning areas 两关键区ssta周期特征反映辽宁汛期降水异常的不同长度周期特征,且有很好的互补关系。 |
| 3. | ( 2 ) tpnes precipitation anomalies is the highest in northwest china , and the dry years are more than the wet years , whereas no the lasting dry years ( 2 )青藏高原东北侧区是西北地区降水异常最为敏感的区域,其少雨年的概率大于多雨年,但不存在持续少雨年。 |
| 4. | ( 5 ) 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 ( 5 )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。 |
| 5. | The main conclusions are followed : ( 1 ) the rainy season in the south region of jianghuai valleys is may to july , the peaks of its precipitation anomalies appear separately in june 结果表明: ( 1 )江淮南区雨季为5 7月份, 6月为峰值月,而江淮北区雨季为6 7月,峰值月为7月份。 |
| 6. | ( 3 ) the spring precipitation anomalies are close relation with the same attitude areas , and negative correlation with northeast ones . if there are much rain in summer , then the lands which are from sea are rainy , otherwise the areas nearly sea are rainy ( 3 )西北地区春季降水异常与同纬度的地区相关最好,与东北中部地区反相关;夏季多雨,则远离海洋的内陆多雨,夏季少雨,则沿海及近海多雨。 |
| 7. | ( 3 ) the precipitation anomaly existed 3year . 5year 7year 14year periodic variation in the pre - flood period in the south of china . the temperature anomaly existed 2year 4year 5year 12year 19year periodic variation in the pre - flood period in the south of china ( 3 )华南前汛期降水异常存在3a 、 5a 、 7a的年际周期和14a的年代际周期;华南前汛期气温异常存在的2a 、 4a 、 5a的年际周期及12a 、 19a的年代际周期。 |
| 8. | ( 2 ) the precipitation shows periodic variation of 2 - 4 years in the four seasons and significant 10 - 12 years periodic variation in summer and flood season . ( 3 ) liaoning flood season precipitation anomalies in phase with huabei and dongbei , jiangnan inverse 在周期上,辽宁四季降水的3年左右振荡特征较为一致,夏季和汛期的10 12年周期显著。辽宁汛期多少雨年同期华北、东北与之同位相,江南与之反位相。 |
| 9. | More attention was paid on studying the relationship between arctic sea - ice and summer precipitation anomaly in north china . sea - ice anomaly could produce the anomaly of circulation pattern . by analyzing the anomaly of circulation pattern , we discussed the mechanism of sea - ice affecting rainfall in north china 其后着重研究了北极海冰与华北夏季降水异常的关系,并通过对海冰异常造成的大气环流异常的分析来探讨海冰影响华北夏季降水的机制。 |
| 10. | The modified zndx in comparison with others is well indicative of the severity and extent of flood / drought event and of more objective classification of them , which is therefore quite applicable to a extended area . ( 3 ) the main anomaly structures of grades of drought / food in summer over northwest china present pluvial pattern and dry pattern in all the areas , and spatial changes are opposite pattern from the noth to the south and the west to the east . the first four rotated loading vector fields represent four principal precipitation anomaly areas : the weishui river basin , east of the qinghai - xizang plateau 但修订过的zndx指数根据气温、土壤湿度及前期气候湿润度等因子能够客观的反映出西北地区的旱涝特征。 ( 3 )西北地区季与年区域旱涝等级表明:西北地区的干旱雨涝有显著的阶段性和年际变化特征。 1980 ’ s到1990 ’ s中期,气候较湿润,土壤湿度增墒较明显; 1990 ’ s中期以后是40年干旱最异常的时段; 1960 ’ s旱涝交替发生,旱涝趋势接近常年; 1970 ’ s气候虽干旱,但没有1990 ’ s中后期显著。 |