Patterns and Sources of Multidecadal Oscillations in Drought-Sensitive Tree-Ring Records from the Central and Southern Rocky Mountains
Tree-ring records spanning the past seven centuries from the central and southern Rocky Mountains were studied using wavelet analysis to examine multidecadal (>30-70 yr) patterns of drought variation. Fifteen tree-ring series were grouped into five regional composite chronologies based on shared...
Published in: | Geophysical Research Letters |
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2003
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Online Access: | https://doi.org/10.1029/2002gl016154 https://figshare.com/articles/journal_contribution/Patterns_and_Sources_of_Multidecadal_Oscillations_in_Drought-Sensitive_Tree-Ring_Records_from_the_Central_and_Southern_Rocky_Mountains/13677547 |
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ftunivwyomingfig:oai:figshare.com:article/13677547 2023-05-15T17:33:06+02:00 Patterns and Sources of Multidecadal Oscillations in Drought-Sensitive Tree-Ring Records from the Central and Southern Rocky Mountains S. T. Gray J. L. Betancourt C. L. Fastie Stephen T. Jackson 2003-03-26T00:00:00Z https://doi.org/10.1029/2002gl016154 https://figshare.com/articles/journal_contribution/Patterns_and_Sources_of_Multidecadal_Oscillations_in_Drought-Sensitive_Tree-Ring_Records_from_the_Central_and_Southern_Rocky_Mountains/13677547 unknown doi:10.1029/2002gl016154 https://figshare.com/articles/journal_contribution/Patterns_and_Sources_of_Multidecadal_Oscillations_in_Drought-Sensitive_Tree-Ring_Records_from_the_Central_and_Southern_Rocky_Mountains/13677547 CC BY 4.0 CC-BY Botany drought tree-rings multi decadal variability Pacific Decadal Oscillation Atlantic Multidecadal Oscillation Text Journal contribution 2003 ftunivwyomingfig https://doi.org/10.1029/2002gl016154 2023-02-04T11:07:06Z Tree-ring records spanning the past seven centuries from the central and southern Rocky Mountains were studied using wavelet analysis to examine multidecadal (>30-70 yr) patterns of drought variation. Fifteen tree-ring series were grouped into five regional composite chronologies based on shared low-frequency behavior. Strong multidecadal phasing of moisture variation was present in all regions during the late 16th century megadrought. Oscillatory modes in the 30-70 yr domain persisted until the mid-19th century in two regions, and wet-dry cycles were apparently synchronous at some sites until the 1950s drought. The 16th/17th century pattern of severe multidecadal drought followed by decades of wet conditions resembles the 1950s drought and post-1976 wet period. The 16th century megadrought, which may have resulted from coupling of a decadal (similar to 20-30 yr) Pacific cool phase with a multidecadal warm phase in the North Atlantic, marked a substantial reorganization of climate in the Rocky Mountain region. Other Non-Article Part of Journal/Newspaper North Atlantic WyoScholar - University of Wyoming research repository Pacific Geophysical Research Letters 30 6 |
institution |
Open Polar |
collection |
WyoScholar - University of Wyoming research repository |
op_collection_id |
ftunivwyomingfig |
language |
unknown |
topic |
Botany drought tree-rings multi decadal variability Pacific Decadal Oscillation Atlantic Multidecadal Oscillation |
spellingShingle |
Botany drought tree-rings multi decadal variability Pacific Decadal Oscillation Atlantic Multidecadal Oscillation S. T. Gray J. L. Betancourt C. L. Fastie Stephen T. Jackson Patterns and Sources of Multidecadal Oscillations in Drought-Sensitive Tree-Ring Records from the Central and Southern Rocky Mountains |
topic_facet |
Botany drought tree-rings multi decadal variability Pacific Decadal Oscillation Atlantic Multidecadal Oscillation |
description |
Tree-ring records spanning the past seven centuries from the central and southern Rocky Mountains were studied using wavelet analysis to examine multidecadal (>30-70 yr) patterns of drought variation. Fifteen tree-ring series were grouped into five regional composite chronologies based on shared low-frequency behavior. Strong multidecadal phasing of moisture variation was present in all regions during the late 16th century megadrought. Oscillatory modes in the 30-70 yr domain persisted until the mid-19th century in two regions, and wet-dry cycles were apparently synchronous at some sites until the 1950s drought. The 16th/17th century pattern of severe multidecadal drought followed by decades of wet conditions resembles the 1950s drought and post-1976 wet period. The 16th century megadrought, which may have resulted from coupling of a decadal (similar to 20-30 yr) Pacific cool phase with a multidecadal warm phase in the North Atlantic, marked a substantial reorganization of climate in the Rocky Mountain region. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
S. T. Gray J. L. Betancourt C. L. Fastie Stephen T. Jackson |
author_facet |
S. T. Gray J. L. Betancourt C. L. Fastie Stephen T. Jackson |
author_sort |
S. T. Gray |
title |
Patterns and Sources of Multidecadal Oscillations in Drought-Sensitive Tree-Ring Records from the Central and Southern Rocky Mountains |
title_short |
Patterns and Sources of Multidecadal Oscillations in Drought-Sensitive Tree-Ring Records from the Central and Southern Rocky Mountains |
title_full |
Patterns and Sources of Multidecadal Oscillations in Drought-Sensitive Tree-Ring Records from the Central and Southern Rocky Mountains |
title_fullStr |
Patterns and Sources of Multidecadal Oscillations in Drought-Sensitive Tree-Ring Records from the Central and Southern Rocky Mountains |
title_full_unstemmed |
Patterns and Sources of Multidecadal Oscillations in Drought-Sensitive Tree-Ring Records from the Central and Southern Rocky Mountains |
title_sort |
patterns and sources of multidecadal oscillations in drought-sensitive tree-ring records from the central and southern rocky mountains |
publishDate |
2003 |
url |
https://doi.org/10.1029/2002gl016154 https://figshare.com/articles/journal_contribution/Patterns_and_Sources_of_Multidecadal_Oscillations_in_Drought-Sensitive_Tree-Ring_Records_from_the_Central_and_Southern_Rocky_Mountains/13677547 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.1029/2002gl016154 https://figshare.com/articles/journal_contribution/Patterns_and_Sources_of_Multidecadal_Oscillations_in_Drought-Sensitive_Tree-Ring_Records_from_the_Central_and_Southern_Rocky_Mountains/13677547 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2002gl016154 |
container_title |
Geophysical Research Letters |
container_volume |
30 |
container_issue |
6 |
_version_ |
1766131494751830016 |