globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-015-2554-9
Scopus记录号: 2-s2.0-84961288548
论文题名:
Steric sea level variability (1993–2010) in an ensemble of ocean reanalyses and objective analyses
作者: Storto A.; Masina S.; Balmaseda M.; Guinehut S.; Xue Y.; Szekely T.; Fukumori I.; Forget G.; Chang Y.-S.; Good S.A.; Köhl A.; Vernieres G.; Ferry N.; Peterson K.A.; Behringer D.; Ishii M.; Masuda S.; Fujii Y.; Toyoda T.; Yin Y.; Valdivieso M.; Barnier B.; Boyer T.; Lee T.; Gourrion J.; Wang O.; Heimback P.; Rosati A.; Kovach R.; Hernandez F.; Martin M.J.; Kamachi M.; Kuragano T.; Mogensen K.; Alves O.; Haines K.; Wang X.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 49, 期:3
起始页码: 709
结束页码: 729
语种: 英语
英文关键词: Altimetry ; Gravimetry ; Ocean reanalysis evaluation ; Sea level variability
英文摘要: Quantifying 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. In this work, as part of the Ocean Reanalysis Intercomparison Project, the global and regional steric sea level changes are estimated and compared from an ensemble of 16 ocean reanalyses and 4 objective analyses. These estimates are initially compared with a satellite-derived (altimetry minus gravimetry) dataset for a short period (2003–2010). The 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 Southern Ocean. The reanalysis ensemble mean thus represents a valuable tool for further analyses, although large uncertainties remain for the inter-annual trends. Within 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. However, the spread among the products of the halosteric component trend exceeds the mean trend itself, questioning the reliability of its estimate. This is related to the scarcity of salinity observations before the Argo era. Furthermore, 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. © 2015, Springer-Verlag Berlin Heidelberg.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53111
Appears in Collections:过去全球变化的重建

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作者单位: Centro Euro-Mediterraneo sui Cambiamenti Climatici, Viale Aldo Moro 44, Bologna, Italy; European Center for Medium-Range Weather Forecast, Reading, United Kingdom; Collecte Localisation Satellites, Ramonville Saint-Agne, France; National Center for Environmental Predictions, NOAA, College Park, MD, United States; Institut Universitaire Européen de la Mer, CNRS, Brest, France; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Massachusetts Institute of Technology, Cambridge, MA, United States; Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; Met Office Hadley Centre, Exeter, United Kingdom; Institute of Oceanography, University of Hamburg, Hamburg, Germany; Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MA, United States; Mercator Océan, Ramonville-Saint-Agne, France; Met Office, Exeter, United Kingdom; National Oceanographic Data Center, Silver Spring, MA, United States; Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan; Research and Development Center for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Centre for Australian Weather and Climate Research, Bureau of Meteorology, Melbourne, Australia; Department of Meteorology, University of Reading, Reading, United Kingdom; Centre national de la recherche scientifique, CORIOLIS, Brest, France; Global Environment and Marine Department, Japan Meteorological Agency, Tokyo, Japan; Joint Institute for Regional Earth System Science and Engineering, University of California, Los Angeles, CA, United States; Laboratoire des Ecoulements Géophysiques et Industriels, Grenoble, France; Department of Earth Science, Kongju National University, Kongju, South Korea; Institut de Recherche pour le Développement (IRD), Toulouse, France

Recommended Citation:
Storto A.,Masina S.,Balmaseda M.,et al. Steric sea level variability (1993–2010) in an ensemble of ocean reanalyses and objective analyses[J]. Climate Dynamics,2017-01-01,49(3)
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