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High resolution analyses of recent sediments from a Norwegian mountain lake and comparison with instrumental records of climate

High resolution analyses of recent sediments from a Norwegian mountain lake and comparison with instrumental records of climate
High resolution analyses of recent sediments from a Norwegian mountain lake and comparison with instrumental records of climate
The purpose of the palaeolimnological research project carried out at Øvre Neådalsvatn was to apply a number of physical and biological proxy-climate analyses to recent sediments and to compare the results of these analyses with instrumental records of climate. Using a radiometric chronology to match the sediment core with the calendar ages of the reconstructed instrumental record, and by time-averaging the instrumental record, the statistical significance of the relationships between each of the sediment-climate proxies and the reconstructed instrumental-climate measurements were evaluated.
Acid deposition at Øvre Neådalsvatn has been low and its impact limited. Whilst there has been an overall rise in mean annual temperature of about 1 °C since 1900, the physical and biological sediment records studied appear to be insensitive to climate warming of this magnitude. On the one hand, this may be a result of the loss in temporal resolution caused by time-averaging the instrumental data; on the other hand, the lake may be insensitive to the impact of this climate change.
mountain lake, Norwegian Mountains, diatoms, cladocerans, chironomids, chrysophytes, mineral magnetics, carbonaceous particles, pigments, climate, instrumental records
0921-2728
79-93
Cameron, N.G.
fb156ed4-110f-4d79-bf94-ba421e354f8e
Schnell,, Ø. A.
b823874a-6ad2-4e6d-9ce6-926defdf9dae
Rautio, M. L.
e4fa99c5-fec1-4feb-a199-0a9a78bb2185
Lami, A.
37288a59-0da9-4915-83a2-852cfcd834fe
Livingstone, D.M.
3930c83f-9355-4c67-83d7-ccda05698d6a
Appleby, P.G.
e83ef8a2-bf52-4999-a9fb-bc47e996b2e5
Dearing, J. A.
dff37300-b8a6-4406-ad84-89aa01de03d7
Rose, N.L.
d6917731-7683-42c7-8d5b-ce3672cd815b
Cameron, N.G.
fb156ed4-110f-4d79-bf94-ba421e354f8e
Schnell,, Ø. A.
b823874a-6ad2-4e6d-9ce6-926defdf9dae
Rautio, M. L.
e4fa99c5-fec1-4feb-a199-0a9a78bb2185
Lami, A.
37288a59-0da9-4915-83a2-852cfcd834fe
Livingstone, D.M.
3930c83f-9355-4c67-83d7-ccda05698d6a
Appleby, P.G.
e83ef8a2-bf52-4999-a9fb-bc47e996b2e5
Dearing, J. A.
dff37300-b8a6-4406-ad84-89aa01de03d7
Rose, N.L.
d6917731-7683-42c7-8d5b-ce3672cd815b

Cameron, N.G., Schnell,, Ø. A., Rautio, M. L., Lami, A., Livingstone, D.M., Appleby, P.G., Dearing, J. A. and Rose, N.L. (2002) High resolution analyses of recent sediments from a Norwegian mountain lake and comparison with instrumental records of climate. Journal of Paleolimnology, 28 (1), 79-93. (doi:10.1023/A:1020324019052).

Record type: Article

Abstract

The purpose of the palaeolimnological research project carried out at Øvre Neådalsvatn was to apply a number of physical and biological proxy-climate analyses to recent sediments and to compare the results of these analyses with instrumental records of climate. Using a radiometric chronology to match the sediment core with the calendar ages of the reconstructed instrumental record, and by time-averaging the instrumental record, the statistical significance of the relationships between each of the sediment-climate proxies and the reconstructed instrumental-climate measurements were evaluated.
Acid deposition at Øvre Neådalsvatn has been low and its impact limited. Whilst there has been an overall rise in mean annual temperature of about 1 °C since 1900, the physical and biological sediment records studied appear to be insensitive to climate warming of this magnitude. On the one hand, this may be a result of the loss in temporal resolution caused by time-averaging the instrumental data; on the other hand, the lake may be insensitive to the impact of this climate change.

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More information

Published date: 1 June 2002
Keywords: mountain lake, Norwegian Mountains, diatoms, cladocerans, chironomids, chrysophytes, mineral magnetics, carbonaceous particles, pigments, climate, instrumental records

Identifiers

Local EPrints ID: 55646
URI: http://eprints.soton.ac.uk/id/eprint/55646
ISSN: 0921-2728
PURE UUID: 13b4a1c0-d8fa-458f-a67b-5789fe110f9e
ORCID for J. A. Dearing: ORCID iD orcid.org/0000-0002-1466-9640

Catalogue record

Date deposited: 04 Aug 2008
Last modified: 26 Nov 2019 01:47

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