Evaluation of the Global Mean Sea Level Budget between 1993 and 2014

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• 作者：Don P. Chambers ; Anny Cazenave ; Nicolas Champollion ; Habib Dieng…
• 关键词：Sea level ; Ocean mass ; Steric sea level ; Climate change
• 刊名：Surveys in Geophysics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：38
• 期：1
• 页码：309-327
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Geophysics/Geodesy; Earth Sciences, general; Astronomy, Observations and Techniques;
• 出版者：Springer Netherlands
• ISSN：1573-0956
• 卷排序：38

文摘

Evaluating global mean sea level (GMSL) in terms of its components—mass and steric—is useful for both quantifying the accuracy of the measurements and understanding the processes that contribute to GMSL rise. In this paper, we review the GMSL budget over two periods—1993 to 2014 and 2005 to 2014—using multiple data sets of both total GMSL and the components (mass and steric). In addition to comparing linear trends, we also compare the level of agreement of the time series. For the longer period (1993–2014), we find closure in terms of the long-term trend but not for year-to-year variations, consistent with other studies. This is due to the lack of sufficient estimates of the amount of natural water mass cycling between the oceans and hydrosphere. For the more recent period (2005–2014), we find closure in both the long-term trend and for month-to-month variations. This is also consistent with previous studies.