Investigating variations of precipitation concentration in the transitional zone between Qinling Mountains and Loess Plateau in China: Implications for regional impacts of AO and WPSH.
Changes in precipitation patterns greatly impact regional drought/flood risk management and utilization of water resources. The main purpose of this paper was to investigate spatio-temporal variability of precipitation concentration in the transitional zone between Qinling Mountains (QDM), Guanzhong...
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ftdoajarticles:oai:doaj.org/article:af1a22f2acbc4281b68422482ddb8bdf 2023-05-15T15:14:09+02:00 Investigating variations of precipitation concentration in the transitional zone between Qinling Mountains and Loess Plateau in China: Implications for regional impacts of AO and WPSH. Ci Li Hongbo Zhang Vijay P Singh Jingjing Fan Xiaowei Wei Jiantao Yang Xingchen Wei 2020-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0238709 https://doaj.org/article/af1a22f2acbc4281b68422482ddb8bdf EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pone.0238709 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0238709 https://doaj.org/article/af1a22f2acbc4281b68422482ddb8bdf PLoS ONE, Vol 15, Iss 11, p e0238709 (2020) Medicine R Science Q article 2020 ftdoajarticles https://doi.org/10.1371/journal.pone.0238709 2022-12-31T07:04:35Z Changes in precipitation patterns greatly impact regional drought/flood risk management and utilization of water resources. The main purpose of this paper was to investigate spatio-temporal variability of precipitation concentration in the transitional zone between Qinling Mountains (QDM), Guanzhong Plain (GZP) and the Loess Plateau (LPNS) in China, using monthly-scale precipitation concentration index (PCI) and daily-scale concentration index (CI) from daily rainfall records. The Mann-Kendall method was employed to illustrate the change in trend of PCI and CI, the Kriging interpolation method was adopted to measure spatial distribution, and the Wavelet transforms were used to explore their spatio-temporal correlation with the Arctic Oscillation (AO) & Western Pacific Subtropical High (WPSH) for revealing the potential attribution of precipitation concentration variation. Also, the regional implication of CI was investigated in the zone to provide local knowledge of the index application. Results showed that annual precipitation demonstrated a north-south increasing layered spatial distribution in the zone, representing a generally decreasing trend. The CI change generally exhibited a more significant decreasing trend than did PCI in LPNS and GZP due to AO slowly increasing over time, with a spatially weak layered or radial north-south decay, and an insignificant increasing trend in QDM impacted by the enhancing WPSH, with an obvious layered or radial spatial distribution. The spatiotemporal pattern of PCI variation represented similar characteristics in attribution with CI, but an inverse spatial distribution due to the phase difference (positive and negative effects) of AO and WPSH influencing seasonal precipitation. Regional analysis of CI showed that the CI value with over 0.62 indicated that approximately 80% of precipitation was contributed by 25% of the rainiest days in this zone. Fortunately, the area with this high CI has been getting smaller, implying a positive trend toward regional flash flood ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Kendall ENVELOPE(-59.828,-59.828,-63.497,-63.497) Pacific PLOS ONE 15 11 e0238709 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Ci Li Hongbo Zhang Vijay P Singh Jingjing Fan Xiaowei Wei Jiantao Yang Xingchen Wei Investigating variations of precipitation concentration in the transitional zone between Qinling Mountains and Loess Plateau in China: Implications for regional impacts of AO and WPSH. |
topic_facet |
Medicine R Science Q |
description |
Changes in precipitation patterns greatly impact regional drought/flood risk management and utilization of water resources. The main purpose of this paper was to investigate spatio-temporal variability of precipitation concentration in the transitional zone between Qinling Mountains (QDM), Guanzhong Plain (GZP) and the Loess Plateau (LPNS) in China, using monthly-scale precipitation concentration index (PCI) and daily-scale concentration index (CI) from daily rainfall records. The Mann-Kendall method was employed to illustrate the change in trend of PCI and CI, the Kriging interpolation method was adopted to measure spatial distribution, and the Wavelet transforms were used to explore their spatio-temporal correlation with the Arctic Oscillation (AO) & Western Pacific Subtropical High (WPSH) for revealing the potential attribution of precipitation concentration variation. Also, the regional implication of CI was investigated in the zone to provide local knowledge of the index application. Results showed that annual precipitation demonstrated a north-south increasing layered spatial distribution in the zone, representing a generally decreasing trend. The CI change generally exhibited a more significant decreasing trend than did PCI in LPNS and GZP due to AO slowly increasing over time, with a spatially weak layered or radial north-south decay, and an insignificant increasing trend in QDM impacted by the enhancing WPSH, with an obvious layered or radial spatial distribution. The spatiotemporal pattern of PCI variation represented similar characteristics in attribution with CI, but an inverse spatial distribution due to the phase difference (positive and negative effects) of AO and WPSH influencing seasonal precipitation. Regional analysis of CI showed that the CI value with over 0.62 indicated that approximately 80% of precipitation was contributed by 25% of the rainiest days in this zone. Fortunately, the area with this high CI has been getting smaller, implying a positive trend toward regional flash flood ... |
format |
Article in Journal/Newspaper |
author |
Ci Li Hongbo Zhang Vijay P Singh Jingjing Fan Xiaowei Wei Jiantao Yang Xingchen Wei |
author_facet |
Ci Li Hongbo Zhang Vijay P Singh Jingjing Fan Xiaowei Wei Jiantao Yang Xingchen Wei |
author_sort |
Ci Li |
title |
Investigating variations of precipitation concentration in the transitional zone between Qinling Mountains and Loess Plateau in China: Implications for regional impacts of AO and WPSH. |
title_short |
Investigating variations of precipitation concentration in the transitional zone between Qinling Mountains and Loess Plateau in China: Implications for regional impacts of AO and WPSH. |
title_full |
Investigating variations of precipitation concentration in the transitional zone between Qinling Mountains and Loess Plateau in China: Implications for regional impacts of AO and WPSH. |
title_fullStr |
Investigating variations of precipitation concentration in the transitional zone between Qinling Mountains and Loess Plateau in China: Implications for regional impacts of AO and WPSH. |
title_full_unstemmed |
Investigating variations of precipitation concentration in the transitional zone between Qinling Mountains and Loess Plateau in China: Implications for regional impacts of AO and WPSH. |
title_sort |
investigating variations of precipitation concentration in the transitional zone between qinling mountains and loess plateau in china: implications for regional impacts of ao and wpsh. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2020 |
url |
https://doi.org/10.1371/journal.pone.0238709 https://doaj.org/article/af1a22f2acbc4281b68422482ddb8bdf |
long_lat |
ENVELOPE(-59.828,-59.828,-63.497,-63.497) |
geographic |
Arctic Kendall Pacific |
geographic_facet |
Arctic Kendall Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS ONE, Vol 15, Iss 11, p e0238709 (2020) |
op_relation |
https://doi.org/10.1371/journal.pone.0238709 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0238709 https://doaj.org/article/af1a22f2acbc4281b68422482ddb8bdf |
op_doi |
https://doi.org/10.1371/journal.pone.0238709 |
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PLOS ONE |
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15 |
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11 |
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e0238709 |
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