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Atmosphere 2017, 8(5), 83; doi:10.3390/atmos8050083

Recent Trends of Extreme Precipitation and Their Teleconnection with Atmospheric Circulation in the Beijing-Tianjin Sand Source Region, China, 1960–2014

1
College of Water and Soil Conservation, Beijing Forestry University, Beijing 100083, China
2
Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China
3
College of Environment Science and Engineering, Southwest Forestry University, Kunming 650224, China
4
Experimental Center for Desert Forestry, Chinese Academy of Forestry, Inner Mongolia, Dengkou 015200, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Luis Gimeno
Received: 14 March 2017 / Revised: 21 April 2017 / Accepted: 21 April 2017 / Published: 28 April 2017
(This article belongs to the Section Climatology and Meteorology)
View Full-Text   |   Download PDF [10091 KB, uploaded 28 April 2017]   |  

Abstract

Based on the daily precipitation data from 53 meteorological stations, 11 extreme precipitation indices were selected, categorized and calculated; the temporal and spatial patterns in these indices and their teleconnections with the large-scale circulations were analyzed by the non-parametric Mann-Kendall test; and Sen’s slope estimator and linear regression for the period of 1960–2014 were calculated. The results indicated that all extreme precipitation indices had spatial patterns decreasing from the southeastern to the northwestern parts of the Beijing-Tianjin Sand Source Region (BTSSR), except for the consecutive dry days (CDD), which exhibited a reverse spatial pattern. At the whole-region scale, most extreme precipitation indices showed an insignificant decreasing trend, with exceptions in the intensity indices (RX1day and RX5day) with a statistical significance at the 90% confidence level. The total annual precipitation showed a general shift towards a drier climate in the study area. Spatially, all indices for extreme precipitation showed decreasing trends at most stations, except for simple daily intensity index (SDII) and heavy precipitation days (R10). The change in extreme precipitation may be affected by the El Niño-Southern Oscillation (ENSO), East Asian Summer Monsoon (EASM) and Pacific Decadal Oscillation (PDO). Better understanding of extreme precipitation for the BTSSR may be useful in the regional planning for ecological restoration and water management. View Full-Text
Keywords: extreme precipitation; trend; Mann–Kendall; Beijing-Tianjin Sand Source Region; ecological restoration; atmospheric circulation extreme precipitation; trend; Mann–Kendall; Beijing-Tianjin Sand Source Region; ecological restoration; atmospheric circulation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wei, W.; Shi, Z.; Yang, X.; Wei, Z.; Liu, Y.; Zhang, Z.; Ge, G.; Zhang, X.; Guo, H.; Zhang, K.; Wang, B. Recent Trends of Extreme Precipitation and Their Teleconnection with Atmospheric Circulation in the Beijing-Tianjin Sand Source Region, China, 1960–2014. Atmosphere 2017, 8, 83.

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