Detecting Regional Deep Ocean Warming below 2000 Meter Based on Altimetry,GRACE,Argo,and CTD Data  

作　　者：Yuanyuan YANG Min ZHONG Wei FENG Dapeng MU 

机构地区：[1]State Key Laboratory of Geodesy and Earth’s Dynamics,Institute of Geodesy and Geophysics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430077,China [2]University of the Chinese Academy of Sciences,Beijing 100049,China [3]School of Geospatial Engineering and Science,Sun Yat-sen University,Zhuhai 519082,China [4]Institute of Space Sciences,Shandong University,Weihai 264209,China

出　　处：《Advances in Atmospheric Sciences》2021年第10期1778-1790,共13页大气科学进展（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China(Grant No.41904081).

摘　　要：The deep ocean below 2000 m is a large water body with the sparsest data coverage,challenging the closure of the sea-level budget and the estimation of the Earth’s energy imbalance.Whether the deep ocean below 2000 m is warming globally has been debated in the recent decade.However,as the regional signals are generally larger than the global average,it is intriguing to investigate the regional temperature changes.Here,we adopt an indirect method that combines altimetry,GRACE,and Argo data to examine the global and regional deep ocean temperature changes below 2000 m.The consistency between high-quality conductivity-temperature-depth(CTD)data from repeated hydrographic sections and our results confirms the validity of the indirect method.We find that the deep oceans are warming in the Middle East Indian Ocean,the subtropical North and Southwest Pacific,and the Northeast Atlantic,but cooling in the Northwest Atlantic and Southern oceans from 2005 to 2015.

关 键 词：deep ocean warming GRACE ARGO GO-SHIP ALTIMETRY 

分 类 号：P731.11[天文地球—海洋科学]