W.R. Gehrels
A pre‐industrial sea‐level rise hotspot along the Atlantic coast of North America
Gehrels, W.R.; Dangendorf, S.; Barlow, N.L.M.; Saher, M.H.; Long, A.J.; Woodworth, P.L.; Piecuch, C.G.; Berk, K.
Authors
S. Dangendorf
N.L.M. Barlow
M.H. Saher
Professor Antony Long a.j.long@durham.ac.uk
Emeritus Professor
P.L. Woodworth
C.G. Piecuch
K. Berk
Abstract
The Atlantic coast of North America north of Cape Hatteras has been proposed as a “hotspot” of late 20th century sea‐level rise. Here we test, using salt‐marsh proxy sea‐level records, if this coast experienced enhanced sea‐level rise over earlier multidecadal‐centennial periods. Whilst we find in agreement with previous studies that 20th century rates of sea‐level change were higher compared to rates during preceding centuries, rates of 18th century sea‐level rise were only slightly lower, suggesting that the “hotspot” is a reoccurring feature for at least three centuries. Proxy sea‐level records from North America (Iceland) are negatively (positively) correlated with centennial changes in the North Atlantic Oscillation. They are consistent with sea‐level “fingerprints” of Arctic ice melt and we therefore hypothesize that sea‐level fluctuations are related to changes in Arctic land‐ice mass balance. Predictions of future sea‐level rise should take into account these long‐term fluctuating rates of natural sea‐level change.
Citation
Gehrels, W., Dangendorf, S., Barlow, N., Saher, M., Long, A., Woodworth, P., …Berk, K. (2020). A pre‐industrial sea‐level rise hotspot along the Atlantic coast of North America. Geophysical Research Letters, 47(4), Article e2019GL085814. https://doi.org/10.1029/2019gl085814
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 11, 2020 |
Online Publication Date | Feb 24, 2020 |
Publication Date | Feb 28, 2020 |
Deposit Date | Feb 18, 2020 |
Publicly Available Date | Feb 28, 2020 |
Journal | Geophysical Research Letters |
Print ISSN | 0094-8276 |
Electronic ISSN | 1944-8007 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 47 |
Issue | 4 |
Article Number | e2019GL085814 |
DOI | https://doi.org/10.1029/2019gl085814 |
Public URL | https://durham-repository.worktribe.com/output/1307580 |
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Copyright Statement
© 2020. The Authors.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use,
distribution and reproduction in any medium, provided the original work is properly cited.
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