Thu Aug 14, F. Flechtner
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Wang, Fengwei, Shen, Yunzhong, Chen, Qiujie, and Geng, Jianhua, 2022. Revisiting sea-level budget by considering all potential impact factors for global mean sea-level change estimation. Scientific Reports, 12:10251, doi:10.1038/s41598-022-14173-2.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2022NatSR..1210251W,
author = {{Wang}, Fengwei and {Shen}, Yunzhong and {Chen}, Qiujie and {Geng}, Jianhua},
title = "{Revisiting sea-level budget by considering all potential impact factors for global mean sea-level change estimation}",
journal = {Scientific Reports},
year = 2022,
month = jun,
volume = {12},
eid = {10251},
pages = {10251},
abstract = "{Accurate estimates of global sea-level change from the observations of
Altimetry, Argo and Gravity Recovery and Climate Experiment
(GRACE) and GRACE Follow-on (GRACE-FO) are of great value for
investigating the global sea-level budget. In this study, we
analyzed the global sea-level change over the period from
January 2005 to December 2019 by considering all potential
impact factors, i.e. three factors for Altimetry observations
(two Altimetry products, ocean bottom deformation (OBD) and
glacial isostatic adjustment (GIA)), three factors for Argo
observations (four Argo products, salinity product error and
deep-ocean steric sea-level change), and seven factors for
GRACE/GRACE-FO observations including three official RL06
solutions, five spatial filtering methods, three GIA models, two
C$_{20}$ (degree 2 order 0) products, Geocenter motion, GAD
field and global mass conservation. The seven impact factors of
GRACE/GRACE-FO observations lead to ninety combinations for the
post-procession of global mean barystatic sea-level change
estimation, whose rates range from 2.00 to 2.45 mm/year. The
total uncertainty of global barystatic sea-level change rate is
{\ensuremath{\pm}} 0.27 mm/year at the 95\% confidence level,
estimated as the standard deviation of the differences between
the different datasets constituting the ensembles. The
statistical results show that the preferred GIA model developed
by Caron et al. in 2018 can improve the closure of the global
sea-level budget by 0.20-0.30 mm/year, which is comparable with
that of neglecting the halosteric component. About 30.8\% of
total combinations (GRACE/GRACE-FO plus Argo) can close the
global sea-level budget within 1-sigma (0.23 mm/year) of
Altimetry observations, 88.9\% within 2-sigma. Once the adopted
factors including GRACE/GRACE-FO solutions from Center for Space
Research (CSR), Caron18 GIA model, SWENSON filtering and Argo
product from China Second Institute of Oceanography, the linear
trend of global sterodynamic sea-level change derived from
GRACE/GRACE-FO plus Argo observations is 3.85 {\ensuremath{\pm}}
0.14 mm/year, nearly closed to 3.90 {\ensuremath{\pm}} 0.23
mm/year of Altimetry observations.}",
doi = {10.1038/s41598-022-14173-2},
adsurl = {https://ui.adsabs.harvard.edu/abs/2022NatSR..1210251W},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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