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Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains

Changes in climate extremes pose far-reaching consequences to ecological processes and hydrologic cycles in alpine ecosystems of the arid mountain regions. Therefore, regional assessments in various climates and mountain regions are needed for understanding the uncertainties of the change trends for...

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Autores principales: Lin, Pengfei, He, Zhibin, Du, Jun, Chen, Longfei, Zhu, Xi, Li, Jing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440392/
https://www.ncbi.nlm.nih.gov/pubmed/28533540
http://dx.doi.org/10.1038/s41598-017-02345-4
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author Lin, Pengfei
He, Zhibin
Du, Jun
Chen, Longfei
Zhu, Xi
Li, Jing
author_facet Lin, Pengfei
He, Zhibin
Du, Jun
Chen, Longfei
Zhu, Xi
Li, Jing
author_sort Lin, Pengfei
collection PubMed
description Changes in climate extremes pose far-reaching consequences to ecological processes and hydrologic cycles in alpine ecosystems of the arid mountain regions. Therefore, regional assessments in various climates and mountain regions are needed for understanding the uncertainties of the change trends for extreme climate events. The objective of this study was to assess the spatial distribution and temporal trends of extreme precipitation and temperature events responses to global warming on the arid mountain regions of China. Results found that temperature extremes exhibited a significant warming trend, consistent with global warming. Warming trend in autumn and winter were greater than in spring and summer. Besides, precipitation extremes also exhibited statistically increase trend, such as number of days with heavy precipitation and rain day precipitation, etc. The distribution of the number of rainy days was showed a significant increasing trend in many sites, indicating that the increase of rain day precipitation mainly contributed by the increase of single precipitation event duration and moderate-rain days. The greater increasing trend of extreme climate events mainly existed in higher altitudes. This results lend an evidence to earlier predictions that the climate in northwestern China is changing from cold-dry to warm-wet.
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spelling pubmed-54403922017-05-25 Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains Lin, Pengfei He, Zhibin Du, Jun Chen, Longfei Zhu, Xi Li, Jing Sci Rep Article Changes in climate extremes pose far-reaching consequences to ecological processes and hydrologic cycles in alpine ecosystems of the arid mountain regions. Therefore, regional assessments in various climates and mountain regions are needed for understanding the uncertainties of the change trends for extreme climate events. The objective of this study was to assess the spatial distribution and temporal trends of extreme precipitation and temperature events responses to global warming on the arid mountain regions of China. Results found that temperature extremes exhibited a significant warming trend, consistent with global warming. Warming trend in autumn and winter were greater than in spring and summer. Besides, precipitation extremes also exhibited statistically increase trend, such as number of days with heavy precipitation and rain day precipitation, etc. The distribution of the number of rainy days was showed a significant increasing trend in many sites, indicating that the increase of rain day precipitation mainly contributed by the increase of single precipitation event duration and moderate-rain days. The greater increasing trend of extreme climate events mainly existed in higher altitudes. This results lend an evidence to earlier predictions that the climate in northwestern China is changing from cold-dry to warm-wet. Nature Publishing Group UK 2017-05-22 /pmc/articles/PMC5440392/ /pubmed/28533540 http://dx.doi.org/10.1038/s41598-017-02345-4 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Lin, Pengfei
He, Zhibin
Du, Jun
Chen, Longfei
Zhu, Xi
Li, Jing
Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains
title Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains
title_full Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains
title_fullStr Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains
title_full_unstemmed Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains
title_short Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains
title_sort recent changes in daily climate extremes in an arid mountain region, a case study in northwestern china’s qilian mountains
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440392/
https://www.ncbi.nlm.nih.gov/pubmed/28533540
http://dx.doi.org/10.1038/s41598-017-02345-4
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