DOI: 10.1002/2016GL068015
论文题名: Subsidence along the Atlantic Coast of North America: Insights from GPS and late Holocene relative sea level data
作者: Karegar M.A. ; Dixon T.H. ; Engelhart S.E.
刊名: Geophysical Research Letters
ISSN: 0094-9136
EISSN: 1944-8867
出版年: 2016
卷: 43, 期: 7 起始页码: 3126
结束页码: 3133
语种: 英语
英文关键词: Atlantic Coast of North America
; glacial isostatic adjustment
; GPS
; groundwater depletion
; Holocene relative sea level
Scopus关键词: Floods
; Glacial geology
; Global positioning system
; Groundwater
; Subsidence
; Tide gages
; Accelerated sea-level rise
; Atlantic coasts
; Glacial Isostatic Adjustments
; Groundwater depletion
; Groundwater extraction
; Laurentide ice sheets
; Relative sea level
; Vertical displacements
; Sea level
英文摘要: The Atlantic Coast of North America is increasingly affected by flooding associated with tropical and extratropical storms, exacerbated by the combined effects of accelerated sea-level rise and land subsidence. The region includes the collapsing forebulge of the Laurentide Ice Sheet. High-quality records of late Holocene relative sea-level (RSL) rise are now available, allowing separation of long-term glacial isostatic adjustment-induced displacement from modern vertical displacement measured by GPS. We compare geological records of late Holocene RSL to present-day vertical rates from GPS. For many coastal areas there is no significant difference between these independent data. Exceptions occur in areas of recent excessive groundwater extraction, between Virginia (38°N) and South Carolina (32.5°N). The present-day subsidence rates in these areas are approximately double the long-term geologic rates, which has important implications for flood mitigation. Tide gauge records, therefore, should be used with caution for studying sea-level rise in this region. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979725365&doi=10.1002%2f2016GL068015&partnerID=40&md5=cbb4189595fd50b1fdd9fe7220ed107b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10099
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: School of Geosciences, University of South Florida, Tampa, FL, United States
Recommended Citation:
Karegar M.A.,Dixon T.H.,Engelhart S.E.. Subsidence along the Atlantic Coast of North America: Insights from GPS and late Holocene relative sea level data[J]. Geophysical Research Letters,2016-01-01,43(7).