Multispectral analysis of Northern Hemisphere temperature records over the last five millennia
© 2014 Springer-Verlag Berlin Heidelberg. Aiming to describe spatio-temporal climate variability on decadal-to-centennial time scales and longer, we analyzed a data set of 26 proxy records extending back 1,000–5,000 years; all records chosen were calibrated to yield temperatures. The seven irregular...
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Language: | English |
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ftcdlib:qt4hw4r4tk 2023-05-15T16:29:28+02:00 Multispectral analysis of Northern Hemisphere temperature records over the last five millennia Taricco, C Mancuso, S Ljungqvist, FC Alessio, S Ghil, M 2014-09-27 application/pdf http://www.escholarship.org/uc/item/4hw4r4tk english eng eScholarship, University of California qt4hw4r4tk http://www.escholarship.org/uc/item/4hw4r4tk public Taricco, C; Mancuso, S; Ljungqvist, FC; Alessio, S; & Ghil, M. (2014). Multispectral analysis of Northern Hemisphere temperature records over the last five millennia. Climate Dynamics. doi:10.1007/s00382-014-2331-1. UCLA: Retrieved from: http://www.escholarship.org/uc/item/4hw4r4tk article 2014 ftcdlib https://doi.org/10.1007/s00382-014-2331-1 2018-07-13T22:54:40Z © 2014 Springer-Verlag Berlin Heidelberg. Aiming to describe spatio-temporal climate variability on decadal-to-centennial time scales and longer, we analyzed a data set of 26 proxy records extending back 1,000–5,000 years; all records chosen were calibrated to yield temperatures. The seven irregularly sampled series in the data set were interpolated to a regular grid by optimized methods and then two advanced spectral methods—namely singular-spectrum analysis (SSA) and the continuous wavelet transform—were applied to individual series to separate significant oscillations from the high noise background. This univariate analysis identified several common periods across many of the 26 proxy records: a millennial trend, as well as oscillations of about 100 and 200 years, and a broad peak in the 40–70-year band. To study common NH oscillations, we then applied Multichannel SSA. Temperature variations on time scales longer than 600 years appear in our analysis as a dominant trend component, which shows climate features consistent with the Medieval Warm Period and the Little Ice Age. Statistically significant NH-wide peaks appear at 330, 250 and 110 years, as well as in a broad 50–80-year band. Strong variability centers in several bands are located around the North Atlantic basin and are in phase opposition between Greenland and Western Europe. Article in Journal/Newspaper Greenland North Atlantic University of California: eScholarship Broad Peak ENVELOPE(-71.231,-71.231,70.495,70.495) Greenland Climate Dynamics 45 1-2 83 104 |
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Open Polar |
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University of California: eScholarship |
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ftcdlib |
language |
English |
description |
© 2014 Springer-Verlag Berlin Heidelberg. Aiming to describe spatio-temporal climate variability on decadal-to-centennial time scales and longer, we analyzed a data set of 26 proxy records extending back 1,000–5,000 years; all records chosen were calibrated to yield temperatures. The seven irregularly sampled series in the data set were interpolated to a regular grid by optimized methods and then two advanced spectral methods—namely singular-spectrum analysis (SSA) and the continuous wavelet transform—were applied to individual series to separate significant oscillations from the high noise background. This univariate analysis identified several common periods across many of the 26 proxy records: a millennial trend, as well as oscillations of about 100 and 200 years, and a broad peak in the 40–70-year band. To study common NH oscillations, we then applied Multichannel SSA. Temperature variations on time scales longer than 600 years appear in our analysis as a dominant trend component, which shows climate features consistent with the Medieval Warm Period and the Little Ice Age. Statistically significant NH-wide peaks appear at 330, 250 and 110 years, as well as in a broad 50–80-year band. Strong variability centers in several bands are located around the North Atlantic basin and are in phase opposition between Greenland and Western Europe. |
format |
Article in Journal/Newspaper |
author |
Taricco, C Mancuso, S Ljungqvist, FC Alessio, S Ghil, M |
spellingShingle |
Taricco, C Mancuso, S Ljungqvist, FC Alessio, S Ghil, M Multispectral analysis of Northern Hemisphere temperature records over the last five millennia |
author_facet |
Taricco, C Mancuso, S Ljungqvist, FC Alessio, S Ghil, M |
author_sort |
Taricco, C |
title |
Multispectral analysis of Northern Hemisphere temperature records over the last five millennia |
title_short |
Multispectral analysis of Northern Hemisphere temperature records over the last five millennia |
title_full |
Multispectral analysis of Northern Hemisphere temperature records over the last five millennia |
title_fullStr |
Multispectral analysis of Northern Hemisphere temperature records over the last five millennia |
title_full_unstemmed |
Multispectral analysis of Northern Hemisphere temperature records over the last five millennia |
title_sort |
multispectral analysis of northern hemisphere temperature records over the last five millennia |
publisher |
eScholarship, University of California |
publishDate |
2014 |
url |
http://www.escholarship.org/uc/item/4hw4r4tk |
long_lat |
ENVELOPE(-71.231,-71.231,70.495,70.495) |
geographic |
Broad Peak Greenland |
geographic_facet |
Broad Peak Greenland |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
Taricco, C; Mancuso, S; Ljungqvist, FC; Alessio, S; & Ghil, M. (2014). Multispectral analysis of Northern Hemisphere temperature records over the last five millennia. Climate Dynamics. doi:10.1007/s00382-014-2331-1. UCLA: Retrieved from: http://www.escholarship.org/uc/item/4hw4r4tk |
op_relation |
qt4hw4r4tk http://www.escholarship.org/uc/item/4hw4r4tk |
op_rights |
public |
op_doi |
https://doi.org/10.1007/s00382-014-2331-1 |
container_title |
Climate Dynamics |
container_volume |
45 |
container_issue |
1-2 |
container_start_page |
83 |
op_container_end_page |
104 |
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1766019177490939904 |