Influences of mesoscale eddies impinging to Kuroshio east of Taiwan
Abstract
The Kuroshio east of Taiwan (Kur-TW) is understood to be one of the two energetic regions along the whole Kuroshio axis. The reason,is a rich eddy field near 20 N latitude band of the northwestern Pacific (Roemmich and Gilson, 2001). In that zone the mesoscale ed,dies propagate westward, leaving a hydrographic signature of a peak-to-trough temperature difference of 2.2 C in the center of the,thermocline. Those westward propagating eddies cause the volume transport of Kur-TW to vary by as much as 10 Sv. These variations ar,e dominated by the imping mesoscale eddies. Moreover, the hydrographic properties of Kur-TW show a seasonal variation indicating tha,t the mesoscale eddy properties vary over time. The objective of our proposed study is to document the variations and influences of,Kur-TW arising from the impinging eddies, especially in the region southeast of Taiwan. Those induced variations include submesoscal,e motions that present in temperature and salinity variations and in nutrient parameters during different seasons. The work will foc,us on in-situ sampling with autonomous instrument platforms (Moored ADCPs and a thermistor chain) and historical data analysis of sh,ipboard ADCP and CTD collected by the Taiwan research vessels over the past 20 years.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 08, 2022
- Source ID
- N629092212020
Entities
People
- I-huan Lee
Organizations
- National Sun Yat-sen University
- Office of Naval Research
- United States Navy