Understanding of Contemporary Regional Sea-Level Change and the Implications for the Future

IF 25.2 1区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Reviews of Geophysics Pub Date : 2020-04-17 DOI:10.1029/2019RG000672
Benjamin D. Hamlington, Alex S. Gardner, Erik Ivins, Jan T. M. Lenaerts, J. T. Reager, David S. Trossman, Edward D. Zaron, Surendra Adhikari, Anthony Arendt, Andy Aschwanden, Brian D. Beckley, David P. S. Bekaert, Geoffrey Blewitt, Lambert Caron, Don P. Chambers, Hrishikesh A. Chandanpurkar, Knut Christianson, Beata Csatho, Richard I. Cullather, Robert M. DeConto, John T. Fasullo, Thomas Frederikse, Jeffrey T. Freymueller, Daniel M. Gilford, Manuela Girotto, William C. Hammond, Regine Hock, Nicholas Holschuh, Robert E. Kopp, Felix Landerer, Eric Larour, Dimitris Menemenlis, Mark Merrifield, Jerry X. Mitrovica, R. Steven Nerem, Isabel J. Nias, Veronica Nieves, Sophie Nowicki, Kishore Pangaluru, Christopher G. Piecuch, Richard D. Ray, David R. Rounce, Nicole-Jeanne Schlegel, Hélène Seroussi, Manoochehr Shirzaei, William V. Sweet, Isabella Velicogna, Nadya Vinogradova, Thomas Wahl, David N. Wiese, Michael J. Willis
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引用次数: 46

Abstract

Global sea level provides an important indicator of the state of the warming climate, but changes in regional sea level are most relevant for coastal communities around the world. With improvements to the sea-level observing system, the knowledge of regional sea-level change has advanced dramatically in recent years. Satellite measurements coupled with in situ observations have allowed for comprehensive study and improved understanding of the diverse set of drivers that lead to variations in sea level in space and time. Despite the advances, gaps in the understanding of contemporary sea-level change remain and inhibit the ability to predict how the relevant processes may lead to future change. These gaps arise in part due to the complexity of the linkages between the drivers of sea-level change. Here we review the individual processes which lead to sea-level change and then describe how they combine and vary regionally. The intent of the paper is to provide an overview of the current state of understanding of the processes that cause regional sea-level change and to identify and discuss limitations and uncertainty in our understanding of these processes. Areas where the lack of understanding or gaps in knowledge inhibit the ability to provide the needed information for comprehensive planning efforts are of particular focus. Finally, a goal of this paper is to highlight the role of the expanded sea-level observation network—particularly as related to satellite observations—in the improved scientific understanding of the contributors to regional sea-level change.

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了解当代区域海平面变化及其对未来的影响
全球海平面是气候变暖状况的重要指标,但区域海平面的变化与世界各地沿海社区最为相关。近年来,随着海平面观测系统的改进,对区域海平面变化的认识有了很大的提高。卫星测量与现场观测相结合,可以对导致海平面在空间和时间上变化的各种驱动因素进行全面研究,并增进对这些驱动因素的了解。尽管取得了这些进展,但对当代海平面变化的理解仍然存在差距,这阻碍了预测相关过程如何导致未来变化的能力。造成这些差距的部分原因是海平面变化驱动因素之间联系的复杂性。在这里,我们回顾了导致海平面变化的个别过程,然后描述了它们如何结合起来并在区域内变化。本文的目的是概述目前对导致区域海平面变化的过程的理解状况,并确定和讨论我们对这些过程的理解中的局限性和不确定性。由于缺乏了解或知识上的差距而无法为全面规划工作提供所需资料的领域尤其受到关注。最后,本文的一个目标是强调扩大的海平面观测网的作用,特别是与卫星观测有关的作用,在提高对区域海平面变化贡献者的科学认识方面。
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来源期刊
Reviews of Geophysics
Reviews of Geophysics 地学-地球化学与地球物理
CiteScore
50.30
自引率
0.80%
发文量
28
审稿时长
12 months
期刊介绍: Geophysics Reviews (ROG) offers comprehensive overviews and syntheses of current research across various domains of the Earth and space sciences. Our goal is to present accessible and engaging reviews that cater to the diverse AGU community. While authorship is typically by invitation, we warmly encourage readers and potential authors to share their suggestions with our editors.
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