菲律宾海底层水体在1990s—2010s之间的暖化  

Bottom-water warming in the Philippine Sea between 1990s and 2010s

作　　者：黄财京 谢强 陈举[3] 舒业强[3] 陈玲舫[1] HUANG Caijing;XIE Qiang;CHEN Ju;SHU Yeqiang;CHEN Lingfang(Ocean Circulation Observation and Numerical Modeling Lab, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China;University of Chinese Academy of Sciences, Beijing 100049, China;State Key Laboratory of Tropical Oceanography (South China Sea Institute of Oceanology, Chinese Academy of Sciences),;Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and Technology,)

机构地区：[1]中国科学院深海科学与工程研究所海洋环流观测与数值模拟实验室,海南三亚572000 [2]中国科学院大学,北京100049 [3]热带海洋国家重点实验室(中国科学院南海海洋研究所),广东广州510301 [4]青岛海洋科学与技术国家实验室区域海洋动力学与数值模拟功能实验室,山东青岛266000

出　　处：《热带海洋学报》2018年第6期26-32,共7页Journal of Tropical Oceanography

基　　金：中国科学院战略性先导科技专项(XDB06020102;XDB06020101);国家自然科学基金项目(41676015;41776036;41576006);三亚市院地科技合作项目(2015YD02)~~

摘　　要：跨菲律宾海的重复断面水文观测揭示:菲律宾海底层水体从1990s到2010s增暖了0.002～0.01℃。在西马里亚纳海盆和四国海盆,较冷的下层绕极深层水(Lower Circumpolar Deep Water,LCDW)减少,较暖的LCDW增加;而在菲律宾海盆,较冷的变性LCDW减少,较暖的变性LCDW增加。菲律宾海盆4000dbar的热通量是0.0413W·m^(–2),而西马里亚纳海盆和四国海盆的是0.0221W·m^(–2)。菲律宾海盆由于深层海洋热膨胀引起的局地海平面上升速度是0.0621mm·yr^(–1),而西马里亚纳海盆和四国海盆的是0.0333mm·yr^(–1)。Repeated trans-Philippine-Sea hydrographic observations reveal that the bottom water in the Philippine Sea has warmed up by about0.002~0.01℃between1990s and2010s.In the West Mariana Basin and the Shikoku Basin,the colder portion of the Lower Circumpolar Deep Water(LCDW)decreased while the warmer portion increased.In the Philippine Basin,the colder portion of modified LCDW decreased while the warmer portion increased.The heat flux at the4000-dbar isobath is0.0413W·m^–2in the Philippine Basin and0.0221W·m^–2in the West Mariana Basin and the Shikoku Basin.The sea level rise is0.0621mm·yr^–1in the Philippine Basin and0.0333mm·yr^–1in the West Mariana Basin and the Shikoku Basin due to deep ocean thermal expansion.

关 键 词：暖化 底层水体 菲律宾海 

分 类 号：P731.11[天文地球—海洋科学]