Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States
Tide-gauge measurements in the western North Atlantic Ocean show coherent, multi-decadal relative sea-level (RSL) trends across multiple spatial scales. Proxy reconstructions developed from salt-marsh sediment can extend this instrumental record. However, the degree of coherence in proxy reconstruct...
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:37602 2023-05-15T17:34:44+02:00 Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States Stearns, RB Engelhart, SE Kemp, AC Hill, TD Brain, MJ Corbett, DR 2023-01-15 application/pdf http://dro.dur.ac.uk/37602/ http://dro.dur.ac.uk/37602/1/37602.pdf https://doi.org/10.1016/j.quascirev.2022.107868 unknown Elsevier dro:37602 issn:0277-3791 issn: 1873-457X doi:10.1016/j.quascirev.2022.107868 http://dro.dur.ac.uk/37602/ https://doi.org/10.1016/j.quascirev.2022.107868 http://dro.dur.ac.uk/37602/1/37602.pdf © 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) CC-BY-NC-ND Quaternary Science Reviews, 2023, Vol.300, pp.107868 [Peer Reviewed Journal] Article PeerReviewed 1480 ftunivdurham https://doi.org/10.1016/j.quascirev.2022.107868 2022-12-15T23:25:48Z Tide-gauge measurements in the western North Atlantic Ocean show coherent, multi-decadal relative sea-level (RSL) trends across multiple spatial scales. Proxy reconstructions developed from salt-marsh sediment can extend this instrumental record. However, the degree of coherence in proxy reconstructions is underexamined through within-region replication. To explore within-region replication, we developed a new RSL reconstruction from Fox Hill Marsh, Rhode Island to complement similar records at nearby sites. We established the elevation of former sea level from assemblages of foraminifera and bulk-sediment δ13C values using a Bayesian transfer function. We employed radiocarbon dating and recognition of pollution horizons to construct a core chronology. Since ∼1200 BCE, RSL rose by ∼3.7 m at Fox Hill Marsh. After correction for glacial isostatic adjustment, application of a statistical model intended to quantify (multi-) century-scale trends showed that the fastest rate of rise in at least the past 3000 years was 1.71 ± 0.84 mm/yr (95% credible interval) in 2020 CE. This result replicates regional tide-gauge measurements and other proxy reconstructions. Using an alternative statistical model constructed to identify sub-centennial sea-level changes, we examined if there was a hotspot of 18th century rise in the northeastern United States and found no spatially-coherent trend (i.e., occurring at all or most sites). This lack of replication indicates that accelerated rise during the 18th century is likely local (site-specific) in scale, or an artifact of individual reconstructions. Continued efforts to replicate RSL reconstructions will increase confidence in the accuracy of records and their subsequent interpretation. Article in Journal/Newspaper North Atlantic Durham University: Durham Research Online Fox Hill ENVELOPE(177.315,177.315,51.926,51.926) Quaternary Science Reviews 300 107868 |
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Open Polar |
collection |
Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
description |
Tide-gauge measurements in the western North Atlantic Ocean show coherent, multi-decadal relative sea-level (RSL) trends across multiple spatial scales. Proxy reconstructions developed from salt-marsh sediment can extend this instrumental record. However, the degree of coherence in proxy reconstructions is underexamined through within-region replication. To explore within-region replication, we developed a new RSL reconstruction from Fox Hill Marsh, Rhode Island to complement similar records at nearby sites. We established the elevation of former sea level from assemblages of foraminifera and bulk-sediment δ13C values using a Bayesian transfer function. We employed radiocarbon dating and recognition of pollution horizons to construct a core chronology. Since ∼1200 BCE, RSL rose by ∼3.7 m at Fox Hill Marsh. After correction for glacial isostatic adjustment, application of a statistical model intended to quantify (multi-) century-scale trends showed that the fastest rate of rise in at least the past 3000 years was 1.71 ± 0.84 mm/yr (95% credible interval) in 2020 CE. This result replicates regional tide-gauge measurements and other proxy reconstructions. Using an alternative statistical model constructed to identify sub-centennial sea-level changes, we examined if there was a hotspot of 18th century rise in the northeastern United States and found no spatially-coherent trend (i.e., occurring at all or most sites). This lack of replication indicates that accelerated rise during the 18th century is likely local (site-specific) in scale, or an artifact of individual reconstructions. Continued efforts to replicate RSL reconstructions will increase confidence in the accuracy of records and their subsequent interpretation. |
format |
Article in Journal/Newspaper |
author |
Stearns, RB Engelhart, SE Kemp, AC Hill, TD Brain, MJ Corbett, DR |
spellingShingle |
Stearns, RB Engelhart, SE Kemp, AC Hill, TD Brain, MJ Corbett, DR Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States |
author_facet |
Stearns, RB Engelhart, SE Kemp, AC Hill, TD Brain, MJ Corbett, DR |
author_sort |
Stearns, RB |
title |
Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States |
title_short |
Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States |
title_full |
Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States |
title_fullStr |
Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States |
title_full_unstemmed |
Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States |
title_sort |
within-region replication of late holocene relative sea-level change: an example from southern new england, united states |
publisher |
Elsevier |
publishDate |
1480 |
url |
http://dro.dur.ac.uk/37602/ http://dro.dur.ac.uk/37602/1/37602.pdf https://doi.org/10.1016/j.quascirev.2022.107868 |
long_lat |
ENVELOPE(177.315,177.315,51.926,51.926) |
geographic |
Fox Hill |
geographic_facet |
Fox Hill |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Quaternary Science Reviews, 2023, Vol.300, pp.107868 [Peer Reviewed Journal] |
op_relation |
dro:37602 issn:0277-3791 issn: 1873-457X doi:10.1016/j.quascirev.2022.107868 http://dro.dur.ac.uk/37602/ https://doi.org/10.1016/j.quascirev.2022.107868 http://dro.dur.ac.uk/37602/1/37602.pdf |
op_rights |
© 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.quascirev.2022.107868 |
container_title |
Quaternary Science Reviews |
container_volume |
300 |
container_start_page |
107868 |
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1766133656129110016 |