气候变化领域集成服务门户(CCPortal): Active Sediment Generation on Coral Reef Flats Contributes to Recent Reef Island Expansion

CCPortal

DOI	10.1029/2020GL088752
	Active Sediment Generation on Coral Reef Flats Contributes to Recent Reef Island Expansion
	Ford M.R.; Kench P.S.; Owen S.D.; Hua Q.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:23
英文摘要	The ongoing development of Jeh Island in the Marshall Islands was investigated using aerial photographs, high-resolution satellite imagery, and radiometric dating of island sediments. Remote sensing observations show the present-day island of Jeh is the product of two or more smaller islands merging together between 1943 and 2006 which are continuing to expand despite local sea-level rise (SLR). Remote sensing observations show modern island development involving a complex multistage merging of smaller islands on a linear atoll rim. Radiometric ages of sediments demonstrate that island development is occurring through the active generation and delivery of modern sediments. Results highlight that at sites where sediment production regimes are in a healthy state, island building under conditions of SLR is possible. The findings have implications for interpreting island evolution from morphostratigraphic studies and understanding future island behavior with further SLR. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Antennas; Merging; Radiometry; Reefs; Remote sensing; Satellite imagery; Sea level; Active sediments; Aerial Photographs; Coral reef; High resolution satellite imagery; Radiometric dating; Sea level rise; Sediment production; Sediments; aerial photograph; atoll; coral reef; image resolution; marine sediment; morphostructure; satellite imagery; sea level change; sediment analysis; Marshall Islands
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169354
作者单位	School of Environment, The University of Auckland, Auckland, New Zealand; Department of Earth Sciences, Simon Fraser University, Burnaby, Canada; School of Resource and Environmental Management, Simon Fraser University, Burnaby, Canada; Australian Nuclear Science and Technology Organisation, Kirrawee DC, NSW, Australia
推荐引用方式 GB/T 7714	Ford M.R.,Kench P.S.,Owen S.D.,et al. Active Sediment Generation on Coral Reef Flats Contributes to Recent Reef Island Expansion[J],2020,47(23).
APA	Ford M.R.,Kench P.S.,Owen S.D.,&Hua Q..(2020).Active Sediment Generation on Coral Reef Flats Contributes to Recent Reef Island Expansion.Geophysical Research Letters,47(23).
MLA	Ford M.R.,et al."Active Sediment Generation on Coral Reef Flats Contributes to Recent Reef Island Expansion".Geophysical Research Letters 47.23(2020).