@article{fdi:010070870,
  title = {{S}teric sea level variability (1993-2010) in an ensemble of ocean reanalyses and objective analyses},
  author = {{S}torto, {A}. and {M}asina, {S}. and {B}almaseda, {M}. and {G}uinehut, {S}. and {X}ue, {Y}. and {S}zekely, {T}. and {F}ukumori, {I}. and {F}orget, {G}. and {C}hang, {Y}. {S}. and {G}ood, {S}. {A}. and {K}ohl, {A}. and {V}ernieres, {G}. and {F}erry, {N}. and {P}eterson, {K}. {A}. and {B}ehringer, {D}. and {I}shii, {M}. and {M}asuda, {S}. and {F}ujii, {Y}. and {T}oyoda, {T}. and {Y}in, {Y}. {H}. and {V}aldivieso, {M}. and {B}arnier, {B}. and {B}oyer, {T}. and {L}ee, {T}. and {G}ourrion, {J}. and {W}ang, {O}. and {H}eimback, {P}. and {R}osati, {A}. and {K}ovach, {R}. and {H}ernandez, {F}abrice and {M}artin, {M}. {J}. and {K}amachi, {M}. and {K}uragano, {T}. and {M}ogensen, {K}. and {A}lves, {O}. and {H}aines, {K}. and {W}ang, {X}. {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{Q}uantifying the effect of the seawater density changes on sea level variability is of crucial importance for climate change studies, as the sea level cumulative rise can be regarded as both an important climate change indicator and a possible danger for human activities in coastal areas. {I}n this work, as part of the {O}cean {R}eanalysis {I}ntercomparison {P}roject, the global and regional steric sea level changes are estimated and compared from an ensemble of 16 ocean reanalyses and 4 objective analyses. {T}hese estimates are initially compared with a satellite-derived (altimetry minus gravimetry) dataset for a short period (2003-2010). {T}he ensemble mean exhibits a significant high correlation at both global and regional scale, and the ensemble of ocean reanalyses outperforms that of objective analyses, in particular in the {S}outhern {O}cean. {T}he reanalysis ensemble mean thus represents a valuable tool for further analyses, although large uncertainties remain for the inter-annual trends. {W}ithin the extended intercomparison period that spans the altimetry era (1993-2010), we find that the ensemble of reanalyses and objective analyses are in good agreement, and both detect a trend of the global steric sea level of 1.0 and 1.1 +/- 0.05 mm/year, respectively. {H}owever, the spread among the products of the halosteric component trend exceeds the mean trend itself, questioning the reliability of its estimate. {T}his is related to the scarcity of salinity observations before the {A}rgo era. {F}urthermore, the impact of deep ocean layers is non-negligible on the steric sea level variability (22 and 12 % for the layers below 700 and 1500 m of depth, respectively), although the small deep ocean trends are not significant with respect to the products spread.},
  keywords = {{O}cean reanalysis evaluation ; {S}ea level variability ; {A}ltimetry ; {G}ravimetry ; {MONDE}},
  booktitle = {{O}cean estimation from an ensemble of global ocean reanalyses, consisting of papers from the {O}cean {R}eanalyses {I}ntercomparison {P}roject ({ORAIP})},
  journal = {{C}limate {D}ynamics},
  volume = {49},
  numero = {3 ({N}o sp{\'e}cial)},
  pages = {709--729},
  ISSN = {0930-7575},
  year = {2017},
  DOI = {10.1007/s00382-015-2554-9},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070870},
}