contributor author | Lian, Zhan | |
contributor author | Sun, Baonan | |
contributor author | Wei, Zexun | |
contributor author | Wang, Yonggang | |
contributor author | Wang, Xinyi | |
date accessioned | 2019-10-05T06:46:46Z | |
date available | 2019-10-05T06:46:46Z | |
date copyright | 5/14/2019 12:00:00 AM | |
date issued | 2019 | |
identifier other | JTECH-D-18-0201.1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4263391 | |
description abstract | AbstractNumerous oceanic mesoscale eddies occur in the South China Sea (SCS). The present study employs eight automatic eddy detection algorithms to identify these mesoscale eddies and compares the results. Eddy probabilities and areas detected by various algorithms differ substantially. Most regions of the SCS with a high discrepancy of eddy probabilities are those with few mesoscale eddies, except for the area west of the Luzon Strait, the area west of Luzon Island between 12° and 17°N, and the southernmost end of the SCS basin. They are primarily caused by strong interference, noncircular eddy shapes, and gentle sea level anomaly (SLA) gradients, respectively. The SLA, winding angle, and hybrid methods can easily detect the mesoscale eddies with wavelike features. The Okubo?Weiss (OW) and the spatially smoothed OW methods better identify grouping phenomena of mesoscale eddies in the SCS. Suggestions are presented on choosing suitable algorithms for studying mesoscale eddies in the SCS. No single algorithm is perfect for all research purposes. For different studies, the most suitable algorithm is different. | |
publisher | American Meteorological Society | |
title | Comparison of Eight Detection Algorithms for the Quantification and Characterization of Mesoscale Eddies in the South China Sea | |
type | Journal Paper | |
journal volume | 36 | |
journal issue | 7 | |
journal title | Journal of Atmospheric and Oceanic Technology | |
identifier doi | 10.1175/JTECH-D-18-0201.1 | |
journal fristpage | 1361 | |
journal lastpage | 1380 | |
tree | Journal of Atmospheric and Oceanic Technology:;2019:;volume 036:;issue 007 | |
contenttype | Fulltext | |