Quantitative calibration of remote mountain lake sediments as climatic recorders of air temperature and ice-cover duration. Arctic, Antarctic and Alpine Research, 37(4): 626-635.
10 páginas. A combination of empirical modeling and a diatom-based transfer function was developed to reconstruct air temperature and ice-cover duration through the study of lake sediments. By using a thermal degree-day modeling approach, ice-cover duration on European mountain and sub-Arctic lakes...
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University of Colorado
2005
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Online Access: | http://hdl.handle.net/10261/44436 https://doi.org/10.1657/1523-0430(2005)037[0626:QCORMS]2.0.CO;2 |
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ftcsic:oai:digital.csic.es:10261/44436 2024-02-11T09:56:15+01:00 Quantitative calibration of remote mountain lake sediments as climatic recorders of air temperature and ice-cover duration. Arctic, Antarctic and Alpine Research, 37(4): 626-635. Thompson, R. Cameron, N. Jones, V. Bigler, C. Rosén, P. Hall, R. I. Catalán, Jordi García, J. Weckstrom, J. Korhola, A. 2005 http://hdl.handle.net/10261/44436 https://doi.org/10.1657/1523-0430(2005)037[0626:QCORMS]2.0.CO;2 en eng University of Colorado http://dx.doi.org/10.1657/1523-0430(2005)037[0626:QCORMS]2.0.CO;2 Arctic, Antarctic, and Alpine Research 37(4) : 626-635 (2005) 1523-0430 http://hdl.handle.net/10261/44436 doi:10.1657/1523-0430(2005)037[0626:QCORMS]2.0.CO;2 none artículo http://purl.org/coar/resource_type/c_6501 2005 ftcsic https://doi.org/10.1657/1523-0430(2005)037[0626:QCORMS]2.0.CO;2 2024-01-16T09:35:31Z 10 páginas. A combination of empirical modeling and a diatom-based transfer function was developed to reconstruct air temperature and ice-cover duration through the study of lake sediments. By using a thermal degree-day modeling approach, ice-cover duration on European mountain and sub-Arctic lakes is found to be very sensitive to temperature change. For example, our model, which incorporates a weather generator, predicts a 100-day shortening in ice-cover duration for a 3°C temperature rise for catchments at elevations of 1500 m in the Southern Alps and the Pyrenees. For the more maritime lakes of Scotland, 30% higher sensitivities (130 d per 3°C) are found, whereas lakes in northwest Finland, in a more continental setting, have only half the sensitivity (50 d per 3°C). A pan-European data set of the species abundance of 252 diatom taxa in 459 mountain and sub-Arctic lakes has been compiled and taxonomically harmonized. Transfer functions were created that relate both seasonal air temperature and ice-cover duration to diatom species composition on the basis of a weighted averaging-partial least squares (WA-PLS) approach. Cross validation was used to test the transfer functions. For ice-cover duration the pan-European data set yields an R-squared value of 0.73, a jack-knifed R-squared value of 0.58, and a residual-mean-square error of prediction (RMSEP) of 23 days. A regional, northern Fennoscandian transect (151 lakes, 122 taxa) yields a jack-knifed R-squared value of 0.50 and an RMSEP of 9 days. For air temperature the pan-European database displayed greatest skill when reconstructing winter or spring temperatures. This result contrasts with the summer temperatures normally studied when using local elevation gradients. The northern Fennoscandian transect has a remarkably low winter RMSEP of 0.73°C. Peer reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic and Alpine Research Arctic Arctic Fennoscandian Digital.CSIC (Spanish National Research Council) Antarctic Arctic |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
10 páginas. A combination of empirical modeling and a diatom-based transfer function was developed to reconstruct air temperature and ice-cover duration through the study of lake sediments. By using a thermal degree-day modeling approach, ice-cover duration on European mountain and sub-Arctic lakes is found to be very sensitive to temperature change. For example, our model, which incorporates a weather generator, predicts a 100-day shortening in ice-cover duration for a 3°C temperature rise for catchments at elevations of 1500 m in the Southern Alps and the Pyrenees. For the more maritime lakes of Scotland, 30% higher sensitivities (130 d per 3°C) are found, whereas lakes in northwest Finland, in a more continental setting, have only half the sensitivity (50 d per 3°C). A pan-European data set of the species abundance of 252 diatom taxa in 459 mountain and sub-Arctic lakes has been compiled and taxonomically harmonized. Transfer functions were created that relate both seasonal air temperature and ice-cover duration to diatom species composition on the basis of a weighted averaging-partial least squares (WA-PLS) approach. Cross validation was used to test the transfer functions. For ice-cover duration the pan-European data set yields an R-squared value of 0.73, a jack-knifed R-squared value of 0.58, and a residual-mean-square error of prediction (RMSEP) of 23 days. A regional, northern Fennoscandian transect (151 lakes, 122 taxa) yields a jack-knifed R-squared value of 0.50 and an RMSEP of 9 days. For air temperature the pan-European database displayed greatest skill when reconstructing winter or spring temperatures. This result contrasts with the summer temperatures normally studied when using local elevation gradients. The northern Fennoscandian transect has a remarkably low winter RMSEP of 0.73°C. Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Thompson, R. Cameron, N. Jones, V. Bigler, C. Rosén, P. Hall, R. I. Catalán, Jordi García, J. Weckstrom, J. Korhola, A. |
spellingShingle |
Thompson, R. Cameron, N. Jones, V. Bigler, C. Rosén, P. Hall, R. I. Catalán, Jordi García, J. Weckstrom, J. Korhola, A. Quantitative calibration of remote mountain lake sediments as climatic recorders of air temperature and ice-cover duration. Arctic, Antarctic and Alpine Research, 37(4): 626-635. |
author_facet |
Thompson, R. Cameron, N. Jones, V. Bigler, C. Rosén, P. Hall, R. I. Catalán, Jordi García, J. Weckstrom, J. Korhola, A. |
author_sort |
Thompson, R. |
title |
Quantitative calibration of remote mountain lake sediments as climatic recorders of air temperature and ice-cover duration. Arctic, Antarctic and Alpine Research, 37(4): 626-635. |
title_short |
Quantitative calibration of remote mountain lake sediments as climatic recorders of air temperature and ice-cover duration. Arctic, Antarctic and Alpine Research, 37(4): 626-635. |
title_full |
Quantitative calibration of remote mountain lake sediments as climatic recorders of air temperature and ice-cover duration. Arctic, Antarctic and Alpine Research, 37(4): 626-635. |
title_fullStr |
Quantitative calibration of remote mountain lake sediments as climatic recorders of air temperature and ice-cover duration. Arctic, Antarctic and Alpine Research, 37(4): 626-635. |
title_full_unstemmed |
Quantitative calibration of remote mountain lake sediments as climatic recorders of air temperature and ice-cover duration. Arctic, Antarctic and Alpine Research, 37(4): 626-635. |
title_sort |
quantitative calibration of remote mountain lake sediments as climatic recorders of air temperature and ice-cover duration. arctic, antarctic and alpine research, 37(4): 626-635. |
publisher |
University of Colorado |
publishDate |
2005 |
url |
http://hdl.handle.net/10261/44436 https://doi.org/10.1657/1523-0430(2005)037[0626:QCORMS]2.0.CO;2 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Antarctic and Alpine Research Arctic Arctic Fennoscandian |
genre_facet |
Antarc* Antarctic Antarctic and Alpine Research Arctic Arctic Fennoscandian |
op_relation |
http://dx.doi.org/10.1657/1523-0430(2005)037[0626:QCORMS]2.0.CO;2 Arctic, Antarctic, and Alpine Research 37(4) : 626-635 (2005) 1523-0430 http://hdl.handle.net/10261/44436 doi:10.1657/1523-0430(2005)037[0626:QCORMS]2.0.CO;2 |
op_rights |
none |
op_doi |
https://doi.org/10.1657/1523-0430(2005)037[0626:QCORMS]2.0.CO;2 |
_version_ |
1790601740508200960 |