Sasaki, Hideharu and Qiu, Bo and Klein, Patrice and Nonaka, Masami and Sasai, Yoshikazu (2022) Interannual Variations of Submesoscale Circulations in the Subtropical Northeastern Pacific. Geophysical Research Letters, 49 (7). Art. No. e2021GL097664. ISSN 0094-8276. doi:10.1029/2021gl097664. https://resolver.caltech.edu/CaltechAUTHORS:20220329-104981731
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Abstract
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 Niño events appear to modulate the interannual variations. In addition, the similarities and differences between the variations in the eastern and western subtropics are highlighted.
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| Additional Information: | © 2022 American Geophysical Union. Issue Online: 07 April 2022; Version of Record online: 07 April 2022; Accepted manuscript online: 26 March 2022; Manuscript accepted: 18 March 2022; Manuscript revised: 14 March 2022; Manuscript received: 27 December 2021. This study is supported by JSPS KAKENHI Grant No. JP20K04075 and Grant-in-Aid for Scientific Research on Innovative Areas Grant No. JP19H05701. OFES2 simulation was conducted on the Earth Simulator supported by JAMSTEC. Data Availability Statement. The data set for the results in this study is available at Sasaki (2021). | ||||||||||||
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| Subject Keywords: | submesoscale; interannual variations; subtropical northeastern Pacific | ||||||||||||
| Issue or Number: | 7 | ||||||||||||
| DOI: | 10.1029/2021gl097664 | ||||||||||||
| Record Number: | CaltechAUTHORS:20220329-104981731 | ||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20220329-104981731 | ||||||||||||
| Official Citation: | Sasaki, H., Qiu, B., Klein, P., Nonaka, M., & Sasai, Y. (2022). Interannual variations of submesoscale circulations in the subtropical northeastern Pacific. Geophysical Research Letters, 49, e2021GL097664. https://doi.org/10.1029/2021GL097664 | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 114129 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | George Porter | ||||||||||||
| Deposited On: | 29 Mar 2022 12:27 | ||||||||||||
| Last Modified: | 03 May 2022 22:27 |
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- Interannual Variations of Submesoscale Circulations in the Subtropical Northeastern Pacific. (deposited 29 Mar 2022 12:27) [Currently Displayed]
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- Sasaki, Hideharu and Qiu, Bo and Klein, Patrice and Nonaka, Masami and Sasai, Yoshikazu Interannual Variations of Submesoscale Circulations in the Subtropical Northeastern Pacific. (deposited 29 Mar 2022 12:27) [Currently Displayed]
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