气候变化领域集成服务门户(CCPortal): Global LiDAR land elevation data reveal greatest sea-level rise vulnerability in the tropics

CCPortal

DOI	10.1038/s41467-021-23810-9
	Global LiDAR land elevation data reveal greatest sea-level rise vulnerability in the tropics
	Hooijer A.; Vernimmen R.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Coastal flood risk assessments require accurate land elevation data. Those to date existed only for limited parts of the world, which has resulted in high uncertainty in projections of land area at risk of sea-level rise (SLR). Here we have applied the first global elevation model derived from satellite LiDAR data. We find that of the worldwide land area less than 2 m above mean sea level, that is most vulnerable to SLR, 649,000 km2 or 62% is in the tropics. Even assuming a low-end relative SLR of 1 m by 2100 and a stable lowland population number and distribution, the 2020 population of 267 million on such land would increase to at least 410 million of which 72% in the tropics and 59% in tropical Asia alone. We conclude that the burden of current coastal flood risk and future SLR falls disproportionally on tropical regions, especially in Asia. © 2021, The Author(s).
语种	英语
scopus关键词	accuracy assessment; flood; lidar; risk assessment; satellite data; sea level change; uncertainty analysis; vulnerability; article; Asia; sea level rise; tropics; Asia
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250662
作者单位	Deltares, Inland Water Systems Unit, P.O. Box 177, Delft, Netherlands; NUS Environmental Research Institute (NERI), National University of Singapore, 1 Engineering Drive, Singapore, Singapore; Data for Sustainability, Axel, Netherlands
推荐引用方式 GB/T 7714	Hooijer A.,Vernimmen R.. Global LiDAR land elevation data reveal greatest sea-level rise vulnerability in the tropics[J],2021,12(1).
APA	Hooijer A.,&Vernimmen R..(2021).Global LiDAR land elevation data reveal greatest sea-level rise vulnerability in the tropics.Nature Communications,12(1).
MLA	Hooijer A.,et al."Global LiDAR land elevation data reveal greatest sea-level rise vulnerability in the tropics".Nature Communications 12.1(2021).