Comment on the subsidence adjustment applied to the Kemp et al. proxy of North Carolina relative sea level

Grinstead, Aslak; Jevrejeva, Svetlana ORCID: https://orcid.org/0000-0001-9490-4665; Moore, Jonh C.. 2011 Comment on the subsidence adjustment applied to the Kemp et al. proxy of North Carolina relative sea level. Proceedings of the National Academy of Sciences of the United States of America, 108 (40). E781-E782. 10.1073/pnas.1111523108

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Abstract/Summary

Kemp et al. ( 1) presented a new salt-marsh proxy record of relative sea level (RSL) from North Carolina (NCRSL). The salt marsh is slowly subsiding as a result of glacial isostatic adjustment (GIA), and the NCRSL record needs to be adjusted to remove this vertical land movement from the sea level record. Kemp et al. ( 1) corrected for a constant subsidence rate of approximately 1 mm/y. This is a “geologic” estimate based on sea level index points, which are determined from linear fits to data from other North American RSL proxy records. Thus, the geologic method implicitly assumes that the entire trend is a result of subsidence and leaves no room for any millennial-scale climate-driven changes in sea level. It is therefore not ...

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1073/pnas.1111523108
Programmes:	Oceans 2025 > Climate, ocean circulation and sea level
ISSN:	0027-8424
Additional Keywords:	HOLOCENE; ATLANTIC COAST
NORA Subject Terms:	Marine Sciences
Date made live:	24 Oct 2011 13:29 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/15499

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1073/pnas.1111523108

Programmes:

Oceans 2025 > Climate, ocean circulation and sea level

ISSN:

0027-8424

Additional Keywords:

HOLOCENE; ATLANTIC COAST

NORA Subject Terms:

Marine Sciences