The energy conversion rates from eddies and mean fl ow into internal lee waves in the global ocean  

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作  者:Bing HAN 

机构地区:[1]Laboratory for Coastal Ocean Variation and Disaster Prediction,College of Ocean and Meteorology,Guangdong Ocean University,Zhanjiang 524088,China [2]State Key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China [3]Institut für Meereskunde,Universität Hamburg,Hamburg 20146,Germany [4]Key Laboratory of Climate,Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province,Guangdong Ocean University,Zhanjiang 524088,China

出  处:《Journal of Oceanology and Limnology》2022年第4期1304-1313,共10页海洋湖沼学报(英文)

基  金:Supported by the Guangdong Basic and Applied Basic Research Fund(No.2020A1515010498);the National Natural Science Foundation of China(Nos.41776034,41706025)。

摘  要:Internal lee waves play an important role in transferring energy from eddies to small scale mixing.However,the energy conversion from eddies into lee waves in the global ocean remains poorly understood.Conversion rates from eddies and from mean fl ow in the global ocean were diff erentiated using single beam sounding data,stratifi cation from climatology,eddy velocity,and mean fl ow from a global ocean model.The global integral energy conversion from eddies is estimated to be 0.083 TW and is almost twice as that from the mean fl ow.A new method was developed to study the uncertainties of energy conversion caused by dealing with the topographic data.Results show that diff erent data processing procedures,and the resolution and accuracy of topographic data have a signifi cant impact on the estimated global energy conversion.

关 键 词:internal lee waves EDDIES mean flow energy conversion TOPOGRAPHY 

分 类 号:P743[天文地球—海洋科学]

 

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