Before the late 2000s,China employed a diplomatic“next generation”approach to its territorial disputes in the South China Sea(SCS).Beginning in the late 2000s,however,China has assumed threatening attitudes,and take...Before the late 2000s,China employed a diplomatic“next generation”approach to its territorial disputes in the South China Sea(SCS).Beginning in the late 2000s,however,China has assumed threatening attitudes,and taken a strong stand against other disputants.Why has China recently shown its assertiveness when dealing with the South China Sea issue?This study argues that two factors-China’s growing naval capabilities and the growing presence of China’s strategic rivals around the South China Sea-led China to adopt a more assertive policy regarding the South China Sea issue.展开更多
This study identifies a decadal shift of summer surface air temperature （SAT） over Northeast Asia,including southeastern parts of Russia,Mongolia and northern China,around the mid-1990s.The results suggest that the ...This study identifies a decadal shift of summer surface air temperature （SAT） over Northeast Asia,including southeastern parts of Russia,Mongolia and northern China,around the mid-1990s.The results suggest that the SAT over the Northeast Asia experienced a significant warming after 1994 relative to that before 1993.This decadal shift also extends to northern China,and leads to a warmer summer over Northeast China and North China after the mid-1990s.The decadal warming over Northeast Asia is found to concur with the enhancement of South China rainfall around the mid-1990s.On the one hand,both the Northeast Asian SAT and South China rainfall exhibit this mid-1990s decadal shift only in summer,but not in other seasons.On the other hand,both the Northeast Asian SAT and South China rainfall exhibit this mid-1990s decadal shift not only in the summer seasonal mean,but also in each month of summer （June,July and August）.Furthermore,the decadal warming is found to result from an anticyclonic anomaly over Northeast Asia,which can be interpreted as the response to the increased precipitation over South China,according to previous numerical results.Thus,we conclude that the warming shift of summer Northeast Asian SAT around the mid-1990s was a remote response to the increased precipitation over South China.展开更多
文摘Before the late 2000s,China employed a diplomatic“next generation”approach to its territorial disputes in the South China Sea(SCS).Beginning in the late 2000s,however,China has assumed threatening attitudes,and taken a strong stand against other disputants.Why has China recently shown its assertiveness when dealing with the South China Sea issue?This study argues that two factors-China’s growing naval capabilities and the growing presence of China’s strategic rivals around the South China Sea-led China to adopt a more assertive policy regarding the South China Sea issue.
基金supported by the National Natural Science Foundation of China (Grant No. 41105046)the National Basic Research Program of China (Grant No. 2010CB950403)the Chinese Academy of Sciences (Grant No. XDA05090000)
文摘This study identifies a decadal shift of summer surface air temperature （SAT） over Northeast Asia,including southeastern parts of Russia,Mongolia and northern China,around the mid-1990s.The results suggest that the SAT over the Northeast Asia experienced a significant warming after 1994 relative to that before 1993.This decadal shift also extends to northern China,and leads to a warmer summer over Northeast China and North China after the mid-1990s.The decadal warming over Northeast Asia is found to concur with the enhancement of South China rainfall around the mid-1990s.On the one hand,both the Northeast Asian SAT and South China rainfall exhibit this mid-1990s decadal shift only in summer,but not in other seasons.On the other hand,both the Northeast Asian SAT and South China rainfall exhibit this mid-1990s decadal shift not only in the summer seasonal mean,but also in each month of summer （June,July and August）.Furthermore,the decadal warming is found to result from an anticyclonic anomaly over Northeast Asia,which can be interpreted as the response to the increased precipitation over South China,according to previous numerical results.Thus,we conclude that the warming shift of summer Northeast Asian SAT around the mid-1990s was a remote response to the increased precipitation over South China.
