气候变化领域集成服务门户(CCPortal): Sea-level rise induced change in exposure of low-lying coastal land: implications for coastal conservation strategies

CCPortal

DOI	10.1007/s44218-024-00041-1
	Sea-level rise induced change in exposure of low-lying coastal land: implications for coastal conservation strategies
	Thieblemont, Remi; le Cozannet, Goneri; Rohmer, Jeremy; Privat, Adrien; Guidez, Romain; Negulescu, Caterina; Philippenko, Xenia; Luijendijk, Arjen; Calkoen, Floris; Nicholls, Robert J.
发表日期	2024
EISSN	2561-4150
起始页码	7
结束页码	1
卷号	7 期号:1
英文摘要	Coastal erosion and flooding are projected to increase during the 21(st) century due to sea-level rise (SLR). To prevent adverse impacts of unmanaged coastal development, national organizations can apply a land protection policy, which consists of acquiring coastal land to avoid further development. Yet, these reserved areas remain exposed to flooding and erosion enhanced by SLR. Here, we quantify the exposure of the coastal land heritage portfolio of the French Conservatoire du littoral (Cdl). We find that 30% (similar to 40%) of the Cdl lands owned (projected to be owned) are located below the contemporary highest tide level. Nearly 10% additional surface exposure is projected by 2100 under the high greenhouse gas emissions scenario (SSP5-8.5) and 2150 for the moderate scenario (SSP2-4.5). The increase in exposure is largest along the West Mediterranean coast of France. We also find that Cdl land exposure increases more rapidly for SLR in the range of 0-1 m than for SLR in the range 2-4 m. Thus, near-future uncertainty on SLR has the largest impact on Cdl land exposure evolution and related land acquisition planning. Concerning erosion, we find that nearly 1% of Cdl land could be lost in 2100 if observed historical trends continue. Adding the SLR effect could lead to more than 3% land loss. Our study confirms previous findings that Cdl needs to consider land losses due to SLR in its land acquisition strategy and start acquiring land farther from the coast.
英文关键词	Climate change; Coastal hazards; Sea-level rise; Coastal conservation agency; Shoreline
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Oceanography
WOS类目	Environmental Sciences ; Oceanography
WOS记录号	WOS:001172975500001
来源期刊	ANTHROPOCENE COASTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298066
作者单位	Bureau de Recherches Geologiques et Minieres (BRGM); Deltares; University of East Anglia
推荐引用方式 GB/T 7714	Thieblemont, Remi,le Cozannet, Goneri,Rohmer, Jeremy,et al. Sea-level rise induced change in exposure of low-lying coastal land: implications for coastal conservation strategies[J],2024,7(1).
APA	Thieblemont, Remi.,le Cozannet, Goneri.,Rohmer, Jeremy.,Privat, Adrien.,Guidez, Romain.,...&Nicholls, Robert J..(2024).Sea-level rise induced change in exposure of low-lying coastal land: implications for coastal conservation strategies.ANTHROPOCENE COASTS,7(1).
MLA	Thieblemont, Remi,et al."Sea-level rise induced change in exposure of low-lying coastal land: implications for coastal conservation strategies".ANTHROPOCENE COASTS 7.1(2024).