Thu Apr 10, F. Flechtner
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Belonenko, T. V. and Koldunov, A. V., 2019. Trends of Steric Sea Level Oscillations in the North Atlantic. Izvestiya Atmospheric and Oceanic Physics, 55(9):1106–1113, doi:10.1134/S0001433819090081.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2019IzAOP..55.1106B,
author = {{Belonenko}, T.~V. and {Koldunov}, A.~V.},
title = "{Trends of Steric Sea Level Oscillations in the North Atlantic}",
journal = {Izvestiya Atmospheric and Oceanic Physics},
keywords = {sea level, steric oscillations, trend, Atlantic Ocean, satellite altimetry, GRACE, Greenland, SODA, EN4, ARMOR},
year = 2019,
month = dec,
volume = {55},
number = {9},
pages = {1106-1113},
abstract = "{We consider trends of sea level steric oscillations in the North
Atlantic in 2003{\textendash}2015 using two independent
approaches. The first method is based on the multidisciplinary
application of altimetry (AVISO) and gravimetry (GRACE mission)
data. The second method is based on the integral assessment of
steric oscillations using variations in the fluid volume caused
by variations in water density: the calculations are carried out
using the SODA, EN4, and ARMOR reanalysis data. It is shown that
the application of the combined altimetry and GRACE data result
in overestimated values of steric oscillations and their trends.
This is related to the fact that the GRACE observations show the
variations in the ocean mass; hence the sea level variations are
presented in a relative coordinate system which is not the
geocentric system. This system does not take into account the
effects of the elastic deformation of the ocean bottom and the
corresponding redistribution of the water volumes. It is shown
that the maximum bias of these estimates and the errors in
determining the steric oscillations and their trends based on
the first method is characteristic of regions located near
Greenland. This is caused by the contribution of the negative
trend component to the GRACE data. If the estimates are made in
regions remote from Greenland coasts, the trend component in the
GRACE measurements is insignificantly manifested and the trends
in the steric oscillations calculated using the method that
jointly uses the AVISO and GRACE data are similar to the trends
in the sea level variations based on the altimetry data. The
trends of the steric oscillations of the sea level calculated
from the reanalysis data are similar in the spatial distribution
between both calculations and also similar to the trends in the
sea level variations based on the altimetry data.}",
doi = {10.1134/S0001433819090081},
adsurl = {https://ui.adsabs.harvard.edu/abs/2019IzAOP..55.1106B},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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Thu Apr 10, F. Flechtner