TAO data support the existence of large high frequency variations in cross-equatorial overturning circulation
TAO data support the existence of large high frequency variations in cross-equatorial overturning circulation
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TAO数据支持跨赤道翻转环流存在较大的高频变化
DOI:
10.1002/essoar.10508604.1
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Baker L
中科院分区:
文献类型:
--
作者:
Baker L
Large amplitude oscillations in the meridional overturning circulation (MOC) have been found near the equator in all major ocean basins in the NEMO ocean general circulation model. With periods of 3–15 days and amplitudes of ∼±100 Sv in the Pacific, these oscillations have been shown to correspond to zonally integrated equatorially trapped waves forced by winds within 10°N/S of the equator. Observations of dynamic height from the Tropical Atmosphere Ocean (TAO) mooring array in the equatorial Pacific also exhibit spectral peaks consistent with the dispersion relation for equatorially trapped waves. Here, we revisit the TAO observations to confirm that the amplitude of the oscillations is consistent with the simulations, supporting the modeled large amplitude MOC oscillations. We also show that the zonal structure of the frequency spectrum in both observations and simulations is predicted by changes in the baroclinic wave speed with variation in stratification across the ocean basin.
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影响因子:
3.2
作者:
Hirschi J
通讯作者:
Hirschi J
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
T. Durland;J. Farrar
通讯作者:
J. Farrar
影响因子:
3.5
作者:
A. Blaker;M. Bell;J. Hirschi;Amy Bokota
通讯作者:
Amy Bokota
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
S. Garzoli;E. Katz
通讯作者:
E. Katz
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
S. Gilbert;G. Mitchum
通讯作者:
G. Mitchum