What is coastal subsidence?

Major technological advances have made measurements of coastal subsidence more sophisticated, but these advances have not always been matched by a thorough examination of what is actually being measured. Here we draw attention to the widespread confusion about key concepts in the coastal subsidence...

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Main Authors: Torbjörn E. Törnqvist, Michael D. Blum
Format: Article
Language:English
Published: Cambridge University Press 2024-01-01
Series:Cambridge Prisms: Coastal Futures
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2754720524000015/type/journal_article
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author Torbjörn E. Törnqvist
Michael D. Blum
author_facet Torbjörn E. Törnqvist
Michael D. Blum
author_sort Torbjörn E. Törnqvist
collection DOAJ
description Major technological advances have made measurements of coastal subsidence more sophisticated, but these advances have not always been matched by a thorough examination of what is actually being measured. Here we draw attention to the widespread confusion about key concepts in the coastal subsidence literature, much of which revolves around the interplay between sediment accretion, vertical land motion and surface-elevation change. We attempt to reconcile this by drawing on well-established concepts from the tectonics community. A consensus on these issues by means of a common language can help bridge the gap between disparate disciplines (ranging from geophysics to ecology) that are critical in the quest for meaningful projections of future relative sea-level rise.
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spelling doaj.art-39260b7d0f414d37b77cd4908f0423e52024-02-09T11:12:11ZengCambridge University PressCambridge Prisms: Coastal Futures2754-72052024-01-01210.1017/cft.2024.1What is coastal subsidence?Torbjörn E. Törnqvist0https://orcid.org/0000-0002-1563-1716Michael D. Blum1Department of Earth and Environmental Sciences, Tulane University, 6823 St. Charles Avenue, New Orleans, Louisiana 70118-5698, USAEarth, Energy and Environment Center, The University of Kansas, 1414 Naismith Drive, Lawrence, Kansas 66045, USAMajor technological advances have made measurements of coastal subsidence more sophisticated, but these advances have not always been matched by a thorough examination of what is actually being measured. Here we draw attention to the widespread confusion about key concepts in the coastal subsidence literature, much of which revolves around the interplay between sediment accretion, vertical land motion and surface-elevation change. We attempt to reconcile this by drawing on well-established concepts from the tectonics community. A consensus on these issues by means of a common language can help bridge the gap between disparate disciplines (ranging from geophysics to ecology) that are critical in the quest for meaningful projections of future relative sea-level rise.https://www.cambridge.org/core/product/identifier/S2754720524000015/type/journal_articlevertical land motionsubsidencecoastsea-level rise
spellingShingle Torbjörn E. Törnqvist
Michael D. Blum
What is coastal subsidence?
Cambridge Prisms: Coastal Futures
vertical land motion
subsidence
coast
sea-level rise
title What is coastal subsidence?
title_full What is coastal subsidence?
title_fullStr What is coastal subsidence?
title_full_unstemmed What is coastal subsidence?
title_short What is coastal subsidence?
title_sort what is coastal subsidence
topic vertical land motion
subsidence
coast
sea-level rise
url https://www.cambridge.org/core/product/identifier/S2754720524000015/type/journal_article
work_keys_str_mv AT torbjornetornqvist whatiscoastalsubsidence
AT michaeldblum whatiscoastalsubsidence