The University of Southampton
University of Southampton Institutional Repository

Can rapidly accumulating Holocene peat profiles provide sub-decadal resolution proxy climate data?

Can rapidly accumulating Holocene peat profiles provide sub-decadal resolution proxy climate data?
Can rapidly accumulating Holocene peat profiles provide sub-decadal resolution proxy climate data?
To test the potential for developing sub-decadal resolution records of ombrotrophic bog surface wetness (BSW), selected abrupt climate events were identified in cores from four sites in north-west Europe and time-slices over each event were investigated at 2–5-mm resolution using peat humification, testate amoeba and plant macrofossil analyses. Age–depth models based on radiocarbon, spheroidal carbonaceous particle and tephra dates were applied and the error in these models was used to determine the effective temporal sampling resolution, which in most cases was sub-decadal. Fine-resolution results revealed some inconsistencies in the co-variability of individual proxies and there was a lack of correspondence between some results from adjacent cores. However, we found evidence of abrupt shifts in BSW occurring over ca. 5–20 years, indicating a more rapid proxy response than identified in previous research. To maximize potential temporal resolution and produce reliable sub-decadal BSW data in future research, we recommended that peat-based studies should obtain the best possible chronological control, focus on sites with high species diversity and rapid accumulation rates and perform replicate coring, or use open peat sections where the stratigraphy can be clearly seen, to assess intra-site differences in microtopography. Site-specific factors should be a primary consideration in the selection of sites for future fine-resolution research.
fine resolution, holocene, multi-proxy, palaeoclimate, sub-decadal
0267-8179
757-770
Amesbury, Matthew J.
e71dd4f4-df90-41f1-85ea-c42c2a35e8e1
Barber, Keith E.
83d1acae-326d-4cb5-94b6-3d1dc78d64e9
Hughes, Paul D.M.
14f83168-b203-4a91-a850-8c48535dc31b
Amesbury, Matthew J.
e71dd4f4-df90-41f1-85ea-c42c2a35e8e1
Barber, Keith E.
83d1acae-326d-4cb5-94b6-3d1dc78d64e9
Hughes, Paul D.M.
14f83168-b203-4a91-a850-8c48535dc31b

Amesbury, Matthew J., Barber, Keith E. and Hughes, Paul D.M. (2012) Can rapidly accumulating Holocene peat profiles provide sub-decadal resolution proxy climate data? Journal of Quaternary Science, 27 (8), 757-770. (doi:10.1002/jqs.2561).

Record type: Article

Abstract

To test the potential for developing sub-decadal resolution records of ombrotrophic bog surface wetness (BSW), selected abrupt climate events were identified in cores from four sites in north-west Europe and time-slices over each event were investigated at 2–5-mm resolution using peat humification, testate amoeba and plant macrofossil analyses. Age–depth models based on radiocarbon, spheroidal carbonaceous particle and tephra dates were applied and the error in these models was used to determine the effective temporal sampling resolution, which in most cases was sub-decadal. Fine-resolution results revealed some inconsistencies in the co-variability of individual proxies and there was a lack of correspondence between some results from adjacent cores. However, we found evidence of abrupt shifts in BSW occurring over ca. 5–20 years, indicating a more rapid proxy response than identified in previous research. To maximize potential temporal resolution and produce reliable sub-decadal BSW data in future research, we recommended that peat-based studies should obtain the best possible chronological control, focus on sites with high species diversity and rapid accumulation rates and perform replicate coring, or use open peat sections where the stratigraphy can be clearly seen, to assess intra-site differences in microtopography. Site-specific factors should be a primary consideration in the selection of sites for future fine-resolution research.

Full text not available from this repository.

More information

e-pub ahead of print date: 22 August 2012
Published date: November 2012
Keywords: fine resolution, holocene, multi-proxy, palaeoclimate, sub-decadal
Organisations: Geography & Environment

Identifiers

Local EPrints ID: 345635
URI: https://eprints.soton.ac.uk/id/eprint/345635
ISSN: 0267-8179
PURE UUID: 84a24966-2986-4487-a3d7-c96bf0165dcb

Catalogue record

Date deposited: 27 Nov 2012 16:43
Last modified: 16 Jul 2019 21:49

Export record

Altmetrics

Contributors

Author: Matthew J. Amesbury
Author: Keith E. Barber

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×