| FENG Yang,WANG Wei,HUANG Ruixin. 2006. Meso-scale available gravitational potential energy in the world oceans. Acta Oceanologica Sinica, (5):1－13 |
| Meso-scale available gravitational potential energy in the world oceans |
| Meso-scale available gravitational potential energy in the world oceans |
| Received:November 02, 2005 Revised:April 29, 2006 |
| DOI： |
| Key words:energy of ocean circulation available potential gravitational energy meso-scale baroclinic instability Rossby deformation radius |
| 中文关键词: energy of ocean circulation available potential gravitational energy meso-scale baroclinic instability Rossby deformation radius |
| 基金项目: |
| Author Name | Affiliation | E-mail | | FENG Yang | Physical Oceanography Laboraltory, Ocean University of China, Qingdao 266003, China | | | WANG Wei | Physical Oceanography Laboraltory, Ocean University of China, Qingdao 266003, China | wei@ouc.edu.cn | | HUANG Ruixin | Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA | |
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| Abstract: |
| The pitfalls of applying the commonly used definition of available gravitational potential energy (AGPE) to the world oceans are re-examined.It is proposed that such definition should apply to the meso-scale problems in the oceans, not the global scale.Based on WOA98 climatological data, the meso-scale AGPE in the world oceans is estimated.Unlike previous results by Oort et al., the meso-scale AGPE is large wherever there is a strong horizontal density gradient.The distribution of meso-scale AGPE reveals the close connection between the baroclinic instability and the release of gravitational potential energy stored within the scale of Rossby deformation radius. |
| 中文摘要: |
| The pitfalls of applying the commonly used definition of available gravitational potential energy (AGPE) to the world oceans are re-examined.It is proposed that such definition should apply to the meso-scale problems in the oceans, not the global scale.Based on WOA98 climatological data, the meso-scale AGPE in the world oceans is estimated.Unlike previous results by Oort et al., the meso-scale AGPE is large wherever there is a strong horizontal density gradient.The distribution of meso-scale AGPE reveals the close connection between the baroclinic instability and the release of gravitational potential energy stored within the scale of Rossby deformation radius. |
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