Временная изменчивость характеристик мезомасштабных вихрей в Австрало-Антарктическом бассейне (по спутниковым данным)

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Временная изменчивость характеристик мезомасштабных вихрей в Австрало-Антарктическом бассейне (по спутниковым данным). / Belonenko, T. V.; Sandalyuk, N. V.

в: Sovremennye Problemy Distantsionnogo Zondirovaniya Zemli iz Kosmosa, Том 15, № 4, 09.2018, стр. 189-199.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{9804bdcd1b0d4edb8b36f50dbb2e1a2d,

title = "Временная изменчивость характеристик мезомасштабных вихрей в Австрало-Антарктическом бассейне (по спутниковым данным)",

abstract = "We compare two different types of data for two long-lived eddies in the Australian - Antarctic basin. These are sea level anomaly data from the Copernicus Marine Environment Monitoring Service portal and dataset from portal Mesoscale Eddies in Altimeter Observations of SSH obtained via automated eddy identification procedure. Using altimetry data from the Copernicus Marine Environment Monitoring Service, we calculate phase velocities of the Rossby waves basing on long-wave approximation. We also calculate empirical velocities from the Hovm{\"o}ller diagrams using Radon method and velocities of eddies provided by Mesoscale Eddies in Altimeter Observations of SSH. The empirical velocity estimates are shown to be slightly higher than velocity estimates predicted by the Rossby wave theory, but they are significantly lower than velocities of mesoscale eddies calculated from the dataset of Mesoscale Eddies in Altimeter Observations of SSH. Temporal variability of physical characteristics of the observed eddies are analyzed, such as amplitude, rotation speed, drift speed, lifetime, radius, and parameter of nonlinearity. Temporal variability of eddy physical characteristics are proved very changeable and the extremum values can be twice to thrice the mean values.",

keywords = "Altimetry, Australian-Antarctic basin, Eddies, Mesoscale, Mesoscale Eddies in Altimeter Observations of SSH, Nonlinearity parameter, Rossby waves, Sea level, Sea level anomaly, Sla",

author = "Belonenko, {T. V.} and Sandalyuk, {N. V.}",

year = "2018",

month = sep,

doi = "10.21046/2070-7401-2018-15-4-189-199",

language = "русский",

volume = "15",

pages = "189--199",

journal = "СОВРЕМЕННЫЕ ПРОБЛЕМЫ ДИСТАНЦИОННОГО ЗОНДИРОВАНИЯ ЗЕМЛИ ИЗ КОСМОСА",

issn = "2070-7401",

publisher = "Институт космических исследований Российской академии наук",

number = "4",

}

RIS

TY - JOUR

T1 - Временная изменчивость характеристик мезомасштабных вихрей в Австрало-Антарктическом бассейне (по спутниковым данным)

AU - Belonenko, T. V.

AU - Sandalyuk, N. V.

PY - 2018/9

Y1 - 2018/9

N2 - We compare two different types of data for two long-lived eddies in the Australian - Antarctic basin. These are sea level anomaly data from the Copernicus Marine Environment Monitoring Service portal and dataset from portal Mesoscale Eddies in Altimeter Observations of SSH obtained via automated eddy identification procedure. Using altimetry data from the Copernicus Marine Environment Monitoring Service, we calculate phase velocities of the Rossby waves basing on long-wave approximation. We also calculate empirical velocities from the Hovmöller diagrams using Radon method and velocities of eddies provided by Mesoscale Eddies in Altimeter Observations of SSH. The empirical velocity estimates are shown to be slightly higher than velocity estimates predicted by the Rossby wave theory, but they are significantly lower than velocities of mesoscale eddies calculated from the dataset of Mesoscale Eddies in Altimeter Observations of SSH. Temporal variability of physical characteristics of the observed eddies are analyzed, such as amplitude, rotation speed, drift speed, lifetime, radius, and parameter of nonlinearity. Temporal variability of eddy physical characteristics are proved very changeable and the extremum values can be twice to thrice the mean values.

AB - We compare two different types of data for two long-lived eddies in the Australian - Antarctic basin. These are sea level anomaly data from the Copernicus Marine Environment Monitoring Service portal and dataset from portal Mesoscale Eddies in Altimeter Observations of SSH obtained via automated eddy identification procedure. Using altimetry data from the Copernicus Marine Environment Monitoring Service, we calculate phase velocities of the Rossby waves basing on long-wave approximation. We also calculate empirical velocities from the Hovmöller diagrams using Radon method and velocities of eddies provided by Mesoscale Eddies in Altimeter Observations of SSH. The empirical velocity estimates are shown to be slightly higher than velocity estimates predicted by the Rossby wave theory, but they are significantly lower than velocities of mesoscale eddies calculated from the dataset of Mesoscale Eddies in Altimeter Observations of SSH. Temporal variability of physical characteristics of the observed eddies are analyzed, such as amplitude, rotation speed, drift speed, lifetime, radius, and parameter of nonlinearity. Temporal variability of eddy physical characteristics are proved very changeable and the extremum values can be twice to thrice the mean values.

KW - Altimetry

KW - Australian-Antarctic basin

KW - Eddies

KW - Mesoscale

KW - Mesoscale Eddies in Altimeter Observations of SSH

KW - Nonlinearity parameter

KW - Rossby waves

KW - Sea level

KW - Sea level anomaly

KW - Sla

UR - http://www.scopus.com/inward/record.url?scp=85053276172&partnerID=8YFLogxK

U2 - 10.21046/2070-7401-2018-15-4-189-199

DO - 10.21046/2070-7401-2018-15-4-189-199

M3 - статья

AN - SCOPUS:85053276172

VL - 15

SP - 189

EP - 199

JO - СОВРЕМЕННЫЕ ПРОБЛЕМЫ ДИСТАНЦИОННОГО ЗОНДИРОВАНИЯ ЗЕМЛИ ИЗ КОСМОСА

JF - СОВРЕМЕННЫЕ ПРОБЛЕМЫ ДИСТАНЦИОННОГО ЗОНДИРОВАНИЯ ЗЕМЛИ ИЗ КОСМОСА

SN - 2070-7401

IS - 4

ER -

ID: 33165884