TY - JOUR

T1 - Мезомасштабные вихри южной части Тихого океана

AU - Травкин, Владимир Станиславович

AU - Белоненко, Татьяна Васильевна

AU - Кочнев, А.В.

AU - Феоктистова, В.Н.

N1 - Травкин В. С., Белоненко Т. В., Кочнев А. В., Феоктистова В. Н. Мезомасштабные вихри южной части Тихого океана. Современные проблемы дистанционного зондирования Земли из космоса. 2024. Т. 21. № 1. С. 286–298. DOI: 10.21046/2070-7401-2024-21-1-286-298.

PY - 2024/4/1

Y1 - 2024/4/1

N2 - The paper analyzes the properties and trajectories of mesoscale eddies in the South Pacific Ocean. The study region is the area adjacent to the coast of South America: 20-50° S, 70-120° W. Two types of data are used for the analysis: Atlas of mesoscale eddy trajectories META3.2 DT created on the basis of satellite altimetry information, and GLORYS12V1 reanalysis of the World Ocean, which is used to construct average current fields and thermohaline characteristics. It has been established that the maximum number of mesoscale eddies is formed in the coastal zone, on the slopes of the Peruvian and Chilean trenches. The average values of the number of eddies per one 1×1° cell (in latitude and longitude) are calculated and the spatial distribution of this characteristic as well as eddy and average kinetic energy in the region are described. There is a meridional displacement of eddies as they move west: cyclones to the South Pole, anticyclones to the equator. Diagrams of average values of eddy characteristics show that most vortices have radii of 50-75 km, amplitudes exceeding 5 cm, orbital velocities of 5-15 cm/s and a lifetime not exceeding 50 days. The features of longlived mesoscale eddies with lifetimes exceeding 1 and 2 years are analyzed.

AB - The paper analyzes the properties and trajectories of mesoscale eddies in the South Pacific Ocean. The study region is the area adjacent to the coast of South America: 20-50° S, 70-120° W. Two types of data are used for the analysis: Atlas of mesoscale eddy trajectories META3.2 DT created on the basis of satellite altimetry information, and GLORYS12V1 reanalysis of the World Ocean, which is used to construct average current fields and thermohaline characteristics. It has been established that the maximum number of mesoscale eddies is formed in the coastal zone, on the slopes of the Peruvian and Chilean trenches. The average values of the number of eddies per one 1×1° cell (in latitude and longitude) are calculated and the spatial distribution of this characteristic as well as eddy and average kinetic energy in the region are described. There is a meridional displacement of eddies as they move west: cyclones to the South Pole, anticyclones to the equator. Diagrams of average values of eddy characteristics show that most vortices have radii of 50-75 km, amplitudes exceeding 5 cm, orbital velocities of 5-15 cm/s and a lifetime not exceeding 50 days. The features of longlived mesoscale eddies with lifetimes exceeding 1 and 2 years are analyzed.

KW - META3.2 DT

KW - South Pacific

KW - altimetry

KW - anticyclones

KW - cyclones

KW - mesoscale eddies

UR - https://www.mendeley.com/catalogue/4ce28bb7-4272-35c3-ac36-439f0c46eaf5/

U2 - 10.21046/2070-7401-2024-21-1-286-298

DO - 10.21046/2070-7401-2024-21-1-286-298

M3 - статья

VL - 21

SP - 286

EP - 298

JO - СОВРЕМЕННЫЕ ПРОБЛЕМЫ ДИСТАНЦИОННОГО ЗОНДИРОВАНИЯ ЗЕМЛИ ИЗ КОСМОСА

JF - СОВРЕМЕННЫЕ ПРОБЛЕМЫ ДИСТАНЦИОННОГО ЗОНДИРОВАНИЯ ЗЕМЛИ ИЗ КОСМОСА

SN - 2070-7401

IS - 1

ER -