ENSO对南海北部初级生产力的影响The Influence of ENSO on Primary Productivity in the Northern South China Sea
林智涛,沈春燕,孙楠,赵辉
摘要(Abstract):
利用2002年7月至2014年12月的卫星遥感数据,研究ENSO期间我国南海北部的海表温度(SST)、风场等环境场变化特征,并探讨其对南海北部初级生产力的影响。结果表明,El Ni?o/La Ni?a期间南海北部初级生产力较正常年份变化显著,很大程度上受到ENSO的调控,其变化与风场、SST等的分布变化密切相关。具体趋势:厄尔尼诺年的冬季风期间,南海北部海域风场强度减小,沿岸海域SST升高,初级生产力降低,南海东北部海域SST降低,初级生产力升高,整个海域的总初级生产力与MEI指数呈负相关关系;拉尼娜年的冬季风期间,相应海域的风场、SST和初级生产力的变化则与厄尔尼诺期间的相反,整个海域的总初级生产力与MEI指数呈正相关关系。
关键词(KeyWords): ENSO;初级生产力;SST;风场;南海北部
基金项目(Foundation):
作者(Author): 林智涛,沈春燕,孙楠,赵辉
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