摘要
使用1994-2000年NCEP风应力资料驱动全球变网格环流模式,得出印度尼西亚贯穿流(ITF)流量的年际变化时间序列。模拟结果显示:ITF流量的年际变化与太平洋和印度洋的年际变化均有密切联系,在ElNino年流量偏低,在LaNina年流量偏高;ITF流量的年际变化与Nino3区指数呈显著负相关,Nino3区指数超前ITF流量2个月时负相关系数达到最大,为-0.81;与南方涛动指数(SOI)明显呈正相关,SOI超前ITF流量2个月时相关系数达到最大,为0.72;与印度洋偶极子(IOD)指数负相关,IOD指数超前ITF流量3个月时负相关系数达到最大,为-0.74。
A variable-grid global circulation model driven by NCEP wind stress data from 1994 to 2000 was used to get the interannual variation time series of the Indonesian Throughflow (ITF). It is shown from the simulated results that the interannual variations of ITF volume transport are closely realted to the interannual variations of the Pacific Ocean and Indian Ocean, the ITF volume transport was smaller during E1 Nio event, and larger during La Nia event. The interannual variations of ITF volume transport are negatively correlated with those of Nio 3 area index, and their negative correlation coefficient reached the maximum of -0.81 when the Nio 3 area index led the ITF volume transport by 2 months; the interanual variations of ITF volume transport are correlated with those of Southern Oscillation index (SOI), and their correlation coefficient reached the maximum of 0.72 when the latter led the former by 2 months; the interannual variations of ITF volume transport are negatively correlated with those of Indian Ocean Dipole index, and their negative correlation coefficient reached the maximum of -0.74 when the latter led the former by 3 months.
出处
《海洋科学进展》
CAS
CSCD
北大核心
2005年第2期127-134,共8页
Advances in Marine Science
基金
国家自然科学基金重点项目--热带太平洋年际与年代际海洋环境变异规律(40136010)
国家重点基础研究发展规划项目--中国近海环流形成变异机理
数值预测方法及对近海环境影响的研究(G1999043808)
国家自然科学基金项目--南海与外海水交换及其与ENSO的关系(40476016
关键词
印度尼西亚贯穿流
数值模式
年际变化
海洋环流模式
Indonesian Throughflow
numerical model
interannual variability
ocean circulation model
