Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 49, Issue 7, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2021GL097664
Keywords
submesoscale; interannual variations; subtropical northeastern Pacific
Categories
Funding
- JSPS KAKENHI [JP20K04075]
- JAMSTEC
- [JP19H05701]
Ask authors/readers for more resources
Recent studies have reported the impacts of oceanic submesoscale circulations on oceanic circulation, marine ecosystem, and air-sea heat flux. This study shows the interannual variations of active submesoscale circulations in winter and their mechanism in the subtropical northeastern Pacific. The submesoscale kinetic energy varies synchronously with the available potential energy release in a process of mixed layer instability (MLI), and El Nino events appear to modulate the interannual variations.
Impacts of oceanic submesoscale circulations on oceanic circulation as well as marine ecosystem and air-sea heat flux have been reported by recent studies. Therefore, their regionality and variations on various timescales are important to understand their impacts. The submesoscale circulations are active in winter, which is mostly enhanced by mixed layer instability (MLI). However, their variations on timescales longer than interannual are not well understood. This study shows the interannual variations of active submesoscale circulations in winter and their mechanism in the subtropical northeastern Pacific using the output of a submesoscale permitting simulation. The submesoscale kinetic energy varies synchronously with the available potential energy release in a process of MLI. El Nino events appear to modulate the interannual variations. In addition, the similarities and differences between the variations in the eastern and western subtropics are highlighted.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available