Next Article in Journal
CAPS: A New Method for the Identification of Different Surface Displacements in Landslide and Subsidence Environments through Correlation Analysis on Persistent Scatterers Time-Series from PSI
Previous Article in Journal
Direction of Arrival Estimation of Acoustic Sources with Unmanned Underwater Vehicle Swarm via Matrix Completion
 
 
Communication

Coherence of Eddy Kinetic Energy Variation during Eddy Life Span to Low-Frequency Ageostrophic Energy

by 1, 1,2,3,*, 4, 1,2,3, 1,2,3 and 1,2,3
1
Laboratory of Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China
2
Key Laboratory of Climate, Resources and Environments in Continent Shelf Sea and Deep Ocean (LCRE), Zhanjiang 524088, China
3
Key Laboratory of Space Ocean Remote Sensing and Applications (LORA), Ministry of Natural Resources, Beijing 100081, China
4
Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD 20742, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Sergei Badulin
Remote Sens. 2022, 14(15), 3793; https://doi.org/10.3390/rs14153793
Received: 10 July 2022 / Revised: 30 July 2022 / Accepted: 4 August 2022 / Published: 6 August 2022
The evolution of mesoscale eddies is crucial for understanding the ocean energy cascade. In this study, using global reanalysis sea surface velocity data and a mesoscale eddy trajectory product tracked by satellite altimeters, we aimed to reveal the coherence of eddy kinetic energy (EKE) variation to low-frequency ageostrophic energy during the eddy life span. The variation in EKE throughout the eddy life span was highly coherent to that of the seven-day low-passed ageostrophic kinetic energy, with a correlation coefficient of −0.94. The low-frequency ageostrophic motions supplied 38% of the EKE variation in the growing stage of mesoscale eddies and absorbed 42% in the decaying stage. The evolution rate of the EKE during the eddy life span was consistent with the barotropic conversion rate of the low-frequency ageostrophic motions, further confirming the dominant role of low-frequency ageostrophic motions in eddy growth and decay. View Full-Text
Keywords: mesoscale eddy; eddy kinetic energy; eddy life span; low-frequency motion; barotropic conversion rate mesoscale eddy; eddy kinetic energy; eddy life span; low-frequency motion; barotropic conversion rate
Show Figures

Graphical abstract

MDPI and ACS Style

Zhang, Z.; Xie, L.; Zheng, Q.; Li, M.; Li, J.; Li, M. Coherence of Eddy Kinetic Energy Variation during Eddy Life Span to Low-Frequency Ageostrophic Energy. Remote Sens. 2022, 14, 3793. https://doi.org/10.3390/rs14153793

AMA Style

Zhang Z, Xie L, Zheng Q, Li M, Li J, Li M. Coherence of Eddy Kinetic Energy Variation during Eddy Life Span to Low-Frequency Ageostrophic Energy. Remote Sensing. 2022; 14(15):3793. https://doi.org/10.3390/rs14153793

Chicago/Turabian Style

Zhang, Zhisheng, Lingling Xie, Quanan Zheng, Mingming Li, Junyi Li, and Min Li. 2022. "Coherence of Eddy Kinetic Energy Variation during Eddy Life Span to Low-Frequency Ageostrophic Energy" Remote Sensing 14, no. 15: 3793. https://doi.org/10.3390/rs14153793

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop