Mon Dec 15, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Liu, Le, Schindelegger, Michael, Börger, Lara, Foth, Judith, and Gou, Junyang, 2025. Assessment of ocean bottom pressure variations in CMIP6 HighResMIP simulations. Ocean Science, 21(5):2149–2167, doi:10.5194/os-21-2149-2025.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025OcSci..21.2149L,
author = {{Liu}, Le and {Schindelegger}, Michael and {B{\"o}rger}, Lara and {Foth}, Judith and {Gou}, Junyang},
title = "{Assessment of ocean bottom pressure variations in CMIP6 HighResMIP simulations}",
journal = {Ocean Science},
year = 2025,
month = oct,
volume = {21},
number = {5},
pages = {2149-2167},
abstract = "{Ocean bottom pressure (pb) variations from high-resolution climate model
simulations under the CMIP6 (Coupled Model Intercomparison
Project Phase 6) HighResMIP protocol are potentially useful for
oceanographic and space-geodetic research, but the overall
signal content and accuracy of these pb estimates have hitherto
not been assessed. Here, we compute monthly pb fields from five
CMIP6 HighResMIP models at 1/4{\textdegree} grid spacing over
both historical and future time spans and compare these data, in
terms of temporal variance, against observation-based pb
estimates from a 1/4{\textdegree} downscaled GRACE (Gravity
Recovery and Climate Experiment) product and 23 bottom pressure
recorders, mostly in the Pacific. The model results are
qualitatively and quantitatively similar to the GRACE-based pb
variances, featuring {\textendash} aside from eddy imprints
{\textendash} elevated amplitudes on continental shelves and in
major abyssal plains of the Southern Ocean. Modeled pb variance
in these regions is {\ensuremath{\sim}} 10 \%{\textendash}80 \%
higher and thus overestimated compared to GRACE, whereas
underestimation relative to GRACE and the bottom pressure
recorders prevails in more quiescent deep-ocean regions. We also
form variance ratios of detrended pb signals over
2030{\textendash}2049 under a high-emission scenario relative to
1980{\textendash}1999 for three selected models and find
statistically significant increases in future pb variance by
{\ensuremath{\sim}} 30 \%{\textendash}50 \% across deep Arctic
basins and the southern South Atlantic. The strengthening
appears to be linked to projected changes in high-latitude
surface winds and, in the case of the South Atlantic,
intensified eddy kinetic energy. The study thus points to
possibly new pathways for relating observed pb variability from
(future) satellite gravimetry missions to anthropogenic climate
change.}",
doi = {10.5194/os-21-2149-2025},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025OcSci..21.2149L},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
Generated by
bib2html_grace.pl
(written by Patrick Riley
modified for this page by Volker Klemann) on
Mon Dec 15, 2025 18:11:59
GRACE-FO
Mon Dec 15, F. Flechtner