A Gridded Reconstruction of Warm Season Precipitation for Asia Spanning the Past Half Millennium
The authors reconstructed May–September precipitation over the Asian continent (5°–55°N, 60°–135°E) back to AD 1470 on the basis of tree-ring data, historical documentary records, ice core records, and the few long-term instrumental data series available in the region. They employed the method of Re...
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ftunivnebraskali:oai:digitalcommons.unl.edu:geosciencefacpub-1400 2023-11-12T04:18:36+01:00 A Gridded Reconstruction of Warm Season Precipitation for Asia Spanning the Past Half Millennium Feng, Song Hu, Q. Steven Wu, Qianru Mann, Michael E. 2013-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/geosciencefacpub/396 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1400/viewcontent/Hu_JC_2013_A_Gridded_Reconstruction.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/geosciencefacpub/396 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1400/viewcontent/Hu_JC_2013_A_Gridded_Reconstruction.pdf Papers in the Earth and Atmospheric Sciences Earth Sciences text 2013 ftunivnebraskali 2023-10-30T11:08:04Z The authors reconstructed May–September precipitation over the Asian continent (5°–55°N, 60°–135°E) back to AD 1470 on the basis of tree-ring data, historical documentary records, ice core records, and the few long-term instrumental data series available in the region. They employed the method of Regularized Expectation Maximization (RegEM) and applied it to 44 subregions within the continent. Verification exercises demonstrate that the reconstruction is skillful over most of the study domain, with eastern China, India, and other regions of humid climate displaying the greatest skill. Lower reconstruction skill is observed in semiarid and arid regions, which was attributable at least in part to the scarcity of observations available for calibration/ validation. The precipitation reconstructions agree well with previous reconstructions, where they are available. The explanatory value of the reconstruction is illustrated using five historically documented severe droughts in north-central China during the past half millennium. The reconstructions both validate and provide a larger-scale context for understanding these past climate events and their relationship with the Asian summer monsoons. Text ice core University of Nebraska-Lincoln: DigitalCommons@UNL |
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University of Nebraska-Lincoln: DigitalCommons@UNL |
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ftunivnebraskali |
language |
unknown |
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Earth Sciences |
spellingShingle |
Earth Sciences Feng, Song Hu, Q. Steven Wu, Qianru Mann, Michael E. A Gridded Reconstruction of Warm Season Precipitation for Asia Spanning the Past Half Millennium |
topic_facet |
Earth Sciences |
description |
The authors reconstructed May–September precipitation over the Asian continent (5°–55°N, 60°–135°E) back to AD 1470 on the basis of tree-ring data, historical documentary records, ice core records, and the few long-term instrumental data series available in the region. They employed the method of Regularized Expectation Maximization (RegEM) and applied it to 44 subregions within the continent. Verification exercises demonstrate that the reconstruction is skillful over most of the study domain, with eastern China, India, and other regions of humid climate displaying the greatest skill. Lower reconstruction skill is observed in semiarid and arid regions, which was attributable at least in part to the scarcity of observations available for calibration/ validation. The precipitation reconstructions agree well with previous reconstructions, where they are available. The explanatory value of the reconstruction is illustrated using five historically documented severe droughts in north-central China during the past half millennium. The reconstructions both validate and provide a larger-scale context for understanding these past climate events and their relationship with the Asian summer monsoons. |
format |
Text |
author |
Feng, Song Hu, Q. Steven Wu, Qianru Mann, Michael E. |
author_facet |
Feng, Song Hu, Q. Steven Wu, Qianru Mann, Michael E. |
author_sort |
Feng, Song |
title |
A Gridded Reconstruction of Warm Season Precipitation for Asia Spanning the Past Half Millennium |
title_short |
A Gridded Reconstruction of Warm Season Precipitation for Asia Spanning the Past Half Millennium |
title_full |
A Gridded Reconstruction of Warm Season Precipitation for Asia Spanning the Past Half Millennium |
title_fullStr |
A Gridded Reconstruction of Warm Season Precipitation for Asia Spanning the Past Half Millennium |
title_full_unstemmed |
A Gridded Reconstruction of Warm Season Precipitation for Asia Spanning the Past Half Millennium |
title_sort |
gridded reconstruction of warm season precipitation for asia spanning the past half millennium |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2013 |
url |
https://digitalcommons.unl.edu/geosciencefacpub/396 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1400/viewcontent/Hu_JC_2013_A_Gridded_Reconstruction.pdf |
genre |
ice core |
genre_facet |
ice core |
op_source |
Papers in the Earth and Atmospheric Sciences |
op_relation |
https://digitalcommons.unl.edu/geosciencefacpub/396 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1400/viewcontent/Hu_JC_2013_A_Gridded_Reconstruction.pdf |
_version_ |
1782335216929472512 |