Multiscale Spatio-Temporal Changes of Precipitation Extremes in Beijing-Tianjin-Hebei Region, China during 1958–2017
In this study, based on daily precipitation records during 1958–2017 from 28 meteorological stations in the Beijing-Tianjin-Hebei (BTH) region, the spatio-temporal variations in precipitation extremes defined by twelve indices are analyzed by the methods of linear regression, Mann-Kendall test and c...
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ftmdpi:oai:mdpi.com:/2073-4433/10/8/462/ 2023-08-20T04:08:33+02:00 Multiscale Spatio-Temporal Changes of Precipitation Extremes in Beijing-Tianjin-Hebei Region, China during 1958–2017 Xiaomeng Song Xianju Zou Chunhua Zhang Jianyun Zhang Fanzhe Kong agris 2019-08-13 application/pdf https://doi.org/10.3390/atmos10080462 EN eng Multidisciplinary Digital Publishing Institute Meteorology https://dx.doi.org/10.3390/atmos10080462 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 10; Issue 8; Pages: 462 extreme precipitation wavelet analysis atmospheric circulation beijing-tianjin-hebei region Text 2019 ftmdpi https://doi.org/10.3390/atmos10080462 2023-07-31T22:30:58Z In this study, based on daily precipitation records during 1958–2017 from 28 meteorological stations in the Beijing-Tianjin-Hebei (BTH) region, the spatio-temporal variations in precipitation extremes defined by twelve indices are analyzed by the methods of linear regression, Mann-Kendall test and continuous wavelet transform. The results showed that the spatial patterns of all the indices except for consecutive dry days (CDD) and consecutive wet days (CWD) were similar to that of annual total precipitation with the high values in the east and the low value in the west. Regionally averaged precipitation extremes were characterized by decreasing trends, of which five indices (i.e., very heavy precipitation days (R50), very wet precipitation (R95p), extreme wet precipitation (R99p), max one-day precipitation (R × 1day), and max five-day precipitation (R × 5day)) exhibited significantly decreasing trends at 5% level. From monthly and seasonal scale, almost all of the highest values in R × 1day and R × 5day occurred in summer, especially in July and August due to the impacts of East Asian monsoon climate on inter-annual uneven distribution of precipitation. The significant decreasing trends in annual R×1day and R×5day were mainly caused by the significant descend in summer. Besides, the possible associations between precipitation extremes and large-scale climate anomalies (e.g., ENSO (El Niño Southern Oscillation), NAO (North Atlantic Oscillation), IOD (Indian Ocean Dipole), and PDO (Pacific Decadal Oscillation)) were also investigated using the correlation analysis. The results showed that the precipitation extremes were significantly influenced by ENSO with one-year ahead, and the converse correlations between the precipitation extremes and climate indices with one-year ahead and 0-year ahead were observed. Moreover, all the indices show significant two- to four-year periodic oscillation during the entire period of 1958–2017, and most of indices show significant four- to eight-year periodic oscillation during ... Text North Atlantic North Atlantic oscillation MDPI Open Access Publishing Indian Kendall ENVELOPE(-59.828,-59.828,-63.497,-63.497) Pacific Atmosphere 10 8 462 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
extreme precipitation wavelet analysis atmospheric circulation beijing-tianjin-hebei region |
spellingShingle |
extreme precipitation wavelet analysis atmospheric circulation beijing-tianjin-hebei region Xiaomeng Song Xianju Zou Chunhua Zhang Jianyun Zhang Fanzhe Kong Multiscale Spatio-Temporal Changes of Precipitation Extremes in Beijing-Tianjin-Hebei Region, China during 1958–2017 |
topic_facet |
extreme precipitation wavelet analysis atmospheric circulation beijing-tianjin-hebei region |
description |
In this study, based on daily precipitation records during 1958–2017 from 28 meteorological stations in the Beijing-Tianjin-Hebei (BTH) region, the spatio-temporal variations in precipitation extremes defined by twelve indices are analyzed by the methods of linear regression, Mann-Kendall test and continuous wavelet transform. The results showed that the spatial patterns of all the indices except for consecutive dry days (CDD) and consecutive wet days (CWD) were similar to that of annual total precipitation with the high values in the east and the low value in the west. Regionally averaged precipitation extremes were characterized by decreasing trends, of which five indices (i.e., very heavy precipitation days (R50), very wet precipitation (R95p), extreme wet precipitation (R99p), max one-day precipitation (R × 1day), and max five-day precipitation (R × 5day)) exhibited significantly decreasing trends at 5% level. From monthly and seasonal scale, almost all of the highest values in R × 1day and R × 5day occurred in summer, especially in July and August due to the impacts of East Asian monsoon climate on inter-annual uneven distribution of precipitation. The significant decreasing trends in annual R×1day and R×5day were mainly caused by the significant descend in summer. Besides, the possible associations between precipitation extremes and large-scale climate anomalies (e.g., ENSO (El Niño Southern Oscillation), NAO (North Atlantic Oscillation), IOD (Indian Ocean Dipole), and PDO (Pacific Decadal Oscillation)) were also investigated using the correlation analysis. The results showed that the precipitation extremes were significantly influenced by ENSO with one-year ahead, and the converse correlations between the precipitation extremes and climate indices with one-year ahead and 0-year ahead were observed. Moreover, all the indices show significant two- to four-year periodic oscillation during the entire period of 1958–2017, and most of indices show significant four- to eight-year periodic oscillation during ... |
format |
Text |
author |
Xiaomeng Song Xianju Zou Chunhua Zhang Jianyun Zhang Fanzhe Kong |
author_facet |
Xiaomeng Song Xianju Zou Chunhua Zhang Jianyun Zhang Fanzhe Kong |
author_sort |
Xiaomeng Song |
title |
Multiscale Spatio-Temporal Changes of Precipitation Extremes in Beijing-Tianjin-Hebei Region, China during 1958–2017 |
title_short |
Multiscale Spatio-Temporal Changes of Precipitation Extremes in Beijing-Tianjin-Hebei Region, China during 1958–2017 |
title_full |
Multiscale Spatio-Temporal Changes of Precipitation Extremes in Beijing-Tianjin-Hebei Region, China during 1958–2017 |
title_fullStr |
Multiscale Spatio-Temporal Changes of Precipitation Extremes in Beijing-Tianjin-Hebei Region, China during 1958–2017 |
title_full_unstemmed |
Multiscale Spatio-Temporal Changes of Precipitation Extremes in Beijing-Tianjin-Hebei Region, China during 1958–2017 |
title_sort |
multiscale spatio-temporal changes of precipitation extremes in beijing-tianjin-hebei region, china during 1958–2017 |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/atmos10080462 |
op_coverage |
agris |
long_lat |
ENVELOPE(-59.828,-59.828,-63.497,-63.497) |
geographic |
Indian Kendall Pacific |
geographic_facet |
Indian Kendall Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Atmosphere; Volume 10; Issue 8; Pages: 462 |
op_relation |
Meteorology https://dx.doi.org/10.3390/atmos10080462 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos10080462 |
container_title |
Atmosphere |
container_volume |
10 |
container_issue |
8 |
container_start_page |
462 |
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1774720860962160640 |