Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains
Abstract 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 t...
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doaj-23a344033d3e4853aa57c5a176b8216e2020-12-08T02:16:07ZengNature Publishing GroupScientific Reports2045-23222017-05-017111510.1038/s41598-017-02345-4Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian MountainsPengfei Lin0Zhibin He1Jun Du2Longfei Chen3Xi Zhu4Jing Li5Linze Inland River Basin Research Station, Chinese Ecosystem Research Network, Key Laboratory of Eco-hydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of SciencesLinze Inland River Basin Research Station, Chinese Ecosystem Research Network, Key Laboratory of Eco-hydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of SciencesLinze Inland River Basin Research Station, Chinese Ecosystem Research Network, Key Laboratory of Eco-hydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of SciencesLinze Inland River Basin Research Station, Chinese Ecosystem Research Network, Key Laboratory of Eco-hydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of SciencesLinze Inland River Basin Research Station, Chinese Ecosystem Research Network, Key Laboratory of Eco-hydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of SciencesLinze Inland River Basin Research Station, Chinese Ecosystem Research Network, Key Laboratory of Eco-hydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of SciencesAbstract 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.https://doi.org/10.1038/s41598-017-02345-4 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pengfei Lin Zhibin He Jun Du Longfei Chen Xi Zhu Jing Li |
spellingShingle |
Pengfei Lin Zhibin He Jun Du Longfei Chen Xi Zhu Jing Li Recent changes in daily climate extremes in an arid mountain region, a case study in northwestern China’s Qilian Mountains Scientific Reports |
author_facet |
Pengfei Lin Zhibin He Jun Du Longfei Chen Xi Zhu Jing Li |
author_sort |
Pengfei Lin |
title |
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_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_sort |
recent changes in daily climate extremes in an arid mountain region, a case study in northwestern china’s qilian mountains |
publisher |
Nature Publishing Group |
series |
Scientific Reports |
issn |
2045-2322 |
publishDate |
2017-05-01 |
description |
Abstract 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. |
url |
https://doi.org/10.1038/s41598-017-02345-4 |
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