Gehrels, WR, Dangendorf, S, Barlow, NLM orcid.org/0000-0002-2713-2543 et al. (5 more authors) (2020) A Preindustrial Sea‐Level Rise Hotspot Along the Atlantic Coast of North America. Geophysical Research Letters, 47 (4). e2019GL085. ISSN 0094-8276
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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 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. |
Keywords: | sea level; late Holocene; Common Era; climate; ocean |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Institute for Applied Geosciences (IAG) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 16 Oct 2020 16:05 |
Last Modified: | 16 Oct 2020 16:05 |
Status: | Published |
Publisher: | American Geophysical Union (AGU) |
Identification Number: | 10.1029/2019gl085814 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:157164 |