1997年夏季西北太平洋环流模拟

许东峰; 袁耀初

1997年夏季西北太平洋环流模拟

国家海洋局海洋动力过程和卫星海洋学重点实验室, 浙江杭州310012;国家海洋局第二海洋研究所, 浙江杭州310012

基金项目: 国家自然科学基金资助项目(49736200);国家重点基础研究发展规划资助项目(G1999043802;G1999043805和G1999043702)

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出版历程
- 收稿日期: 2000-04-09
- 修回日期: 2000-06-18

The simulation of Northwest Pacific circulation in summer of 1997

Key Laboratory of Ocean Dynamic Processes and Satellite Oceanography, State Oceanic Administration, Hangzhou 310012, China;Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

摘要

摘要: 采用1997年7月中日副热带环流合作调查资料,即“向阳红14”号、“东方红”两调查船CTD观测资料、日本TK和IK断面资料以及GTSPP同步资料,应用开边界情形的MOM2模式计算了西北太平洋21.875°～35.125°N,120.875°～137.125°E范围的环流,主要结果如下:在此期间,(1)黑潮在台湾以东并不存在东分支流向琉球群岛以东海域;(2)东海黑潮的流量约为30×10⁶m³/s,日本以南黑潮流量最大约为70×10⁶m³/s;(3)在21.875°～25°N之间大约有15×10⁶m³/s的流量向西流去.速度分布与流函数分布均表明这一支向西的海流大约在冲绳岛西南分为3支,主要分支转向东北沿冲绳岛以东海域向东北流去;(4)琉球海流主要来自上述西向海流.
- 黑潮 /
- 暖涡 /
- MOM2模拟
Abstract: Based on the CTD data dur ing July of 1997 from the cruise of China-Japan Cooperative Study on the Subtropical Circulation and the data of the same period of Global Temperature Salinity Profile Program(GTSPP) Realtime Data Sets,the MOM2 model is used to calculate the circulation for the region of 21.875°~35.125°N, 120.875°~137.125°E.Both diagnostic and robust diagnostic simulations are done.The result of diagnostic simulations is more reliable.The main feature of the circulation pattern in this season is as below:(1)The Kuroshio east of Taiwan Island does not split into two branches as usual.(2)The volume transport(VT)of Kuroshio in the East China Sea is about 30×10⁶ m³/s.The VT south of Japan is about 70×10⁶ m³/s.(3)There is a westward flow at 21.875~25 N coming from 137°E.It splits into three br anches south of Okinawa Islands,the main branch flows northeastward east of Ryūkyū-guntö.(4)The Ryūkyū Current comes mainly from the above westward flow.
- Kuroshio /
- warm eddy /
- MOM2 simulatiom

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参考文献(16)

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