气候变化领域集成服务门户(CCPortal): Contribution of Wave Setup to Projected Coastal Sea Level Changes

CCPortal

DOI	10.1029/2020JC016078
	Contribution of Wave Setup to Projected Coastal Sea Level Changes
	Melet A.; Almar R.; Hemer M.; Le Cozannet G.; Meyssignac B.; Ruggiero P.
发表日期	2020
ISSN	21699275
卷号	125 期号:8
英文摘要	Along open coasts, wind waves are a key driver of coastal changes and can be major contributors to coastal hazards. Wind wave characteristics are projected to change in response to climate change, notably due to changes in atmospheric circulation patterns and the associated surface winds. Here, a first-order estimate of projected 20-yr mean wave setup changes, excluding extreme events and subannual variability, is provided for sandy beaches along most of the world's coastline over the middle and end of the 21st century. Calculations are based on an ensemble of wave model projections under the representative concentration pathways (RCP) 8.5 and on empirical formulations for wave setup. Projected wave setup changes are compared to other contributors currently accounted for in regional sea level projections to extend existing projections of 21st century coastal sea level changes. Projected wave setup changes exhibit a clear spatial heterogeneity and mostly average out at global scale. However, at regional or local scale, wave setup changes are a small yet nonnegligible contributor to total coastal sea level 20-yr mean changes (which include global mean sea level rise, GMSLR) over the middle and end of the 21st century. Wave setup can be a substantial contributor to local departures of coastal sea level changes from GMSLR. Wave setup changes should therefore be included in projections of regional patterns of coastal sea level changes. The reported long-term changes in wave setup also advocate for the inclusion of nonstationary wave contributions to projected regional patterns of coastal sea level changes, including for studies on extreme events. ©2020. The Authors.
英文关键词	climate projection; coastal; sea level rise; wave runup; wave setup
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186746
作者单位	Mercator Ocean International, Ramonville-Saint-Agne, France; LEGOS, Université de Toulouse, CNES, CNRS, IRD, UPS, Toulouse, France; Oceans and Atmosphere, CSIRO, Hobart, TAS, Australia; BRGM/French Geological Survey, Orléans, France; College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, United States
推荐引用方式 GB/T 7714	Melet A.,Almar R.,Hemer M.,et al. Contribution of Wave Setup to Projected Coastal Sea Level Changes[J],2020,125(8).
APA	Melet A.,Almar R.,Hemer M.,Le Cozannet G.,Meyssignac B.,&Ruggiero P..(2020).Contribution of Wave Setup to Projected Coastal Sea Level Changes.Journal of Geophysical Research: Oceans,125(8).
MLA	Melet A.,et al."Contribution of Wave Setup to Projected Coastal Sea Level Changes".Journal of Geophysical Research: Oceans 125.8(2020).