Turn off MathJax
Article Contents
Chunjian Sun, Xidong Wang, Anmin Zhang, Lianxin Zhang, Caixia Shao, Guosong Wang. Statistical characteristics and mechanisms of mesoscale eddies in the North Indian Ocean[J]. Acta Oceanologica Sinica. doi: 10.1007/s13131-021-1969-x
Citation: Chunjian Sun, Xidong Wang, Anmin Zhang, Lianxin Zhang, Caixia Shao, Guosong Wang. Statistical characteristics and mechanisms of mesoscale eddies in the North Indian Ocean[J]. Acta Oceanologica Sinica. doi: 10.1007/s13131-021-1969-x

Statistical characteristics and mechanisms of mesoscale eddies in the North Indian Ocean

doi: 10.1007/s13131-021-1969-x
Funds:  The National Key Research and Development Program of China under contract No. 2019YFC1510000; the National Natural Science Foundation of China under contract No. 41976019.
More Information
  • Corresponding author: E˗mail: anmin.zhang@tju.edu.cn
  • Received Date: 2021-06-10
  • Accepted Date: 2021-09-30
  • Available Online: 2022-03-29
  • The statistical characteristics and mechanisms of mesoscale eddies in the North Indian Ocean are investigated by adopting multi-sensor satellite data from 1993 to 2019. In the Arabian Sea (AS), seasonal variation of eddy characteristics is remarkable, while the intraseasonal variability caused by planetary waves is crucial in the Bay of Bengal (BOB). Seasonal variation of the eddy kinetic energy (EKE) is distinct along the west boundary of AS, especially in the Somali Current region. In the BOB, larger EKE occurs at the northwest basin from March to May, to the east of Sri Lanka from June to September, and along the east coast of India from November to December. The wind stress work (WW) is further studied to figure out the direct influence of wind forcing on EKE. The WW exerts positive effects on EKE along the west boundary of AS and in the south of India/Sri Lanka during the two monsoon seasons. Besides, the WW also has impact on EKE along the east coast of India in November and December. Eventually, we investigate the characteristics and the driving mechanisms of long lifespan eddies. In the AS, long lifespan anti-cyclonic eddies (AEs) mainly generate in the Socotra, the West Indian Coastal Current and the East Arabian Current regions, while cyclonic eddies (CEs) are concentrated in the northwest region. In the BOB, long lifespan AEs mostly form near the west of Myanmar, while CEs are accumulated at the north and northwest basin. The instabilities caused by Rossby waves, coastal Kelvin waves, seasonal currents, together with wind stress forcing exert enormous efforts on the generation and evolution of these eddies.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (61) PDF downloads(3) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return