Mechanical energy input to the world oceans due to atmospheric load1ing  

Mechanical energy input to the world oceans due to atmospheric loading

作　　者：WANG Wei QIAN Chengchun HUANG Ruixin 

机构地区：[1]Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, China [2]Department of Physical Oceanography, Woods Hole OceanographicInstitution, Woods Hole, MA 02543, USA

出　　处：《Chinese Science Bulletin》2006年第3期327-330,共4页

基　　金：This work was supported by the National Natural Science Foundation of China （Grant No.40476010）;Research Fund for the Doctoral Program of Higher Education （Grant No.20030423011）;the National Aero-Space Administration through Contract No. 1229833 （NRA-00-0ES-05）.

摘　　要：Mechanical energy input to the oceans is one of the most important factors controlling the oceanic general circulation. The atmosphere trans- ports mechanical energy to the oceans primarily through wind stress, plus changes of the sea level pressure (the so-called atmospheric loading). The rate of mechanical energy transfer into the ocean due to atmospheric loading is calculated, based on TOPEX/POSEIDON data over ten-year period (1993 -2002). The rate of total energy input for the world oceans is estimated at 0.04TW (1TW=1012Watt), and most of this energy input is concentrated in the Southern Oceans and the Storm Tracks in the Northern Hemisphere. This energy input varied greatly with time, and the amplitude of the interannual variability over the past ten years is about 15%.Mechanical energy input to the oceans is one of the most important factors controlling the oceanic general circulation. The atmosphere transports mechanical energy to the oceans primarily through wind stress, plus changes of the sea level pressure （the so-called atmospheric loading）. The rate of mechanical energy transfer into the ocean due to atmospheric loading is calculated, based on TOPEX/POSEIDON data over ten-year period （1993 -2002）. The rate of total energy input for the world oceans is estimated at 0.04TW （1TW=1012Watt）, and most of this energy input is concentrated in the Southern Oceans and the Storm Tracks in the Northern Hemisphere. This energy input varied greatly with time, and the amplitude of the interannual variability over the past ten years is about 15%.

关 键 词：海洋环流 机械能 大气负载 海平面气压 风应力 

分 类 号：P731.27[天文地球—海洋科学]