Intensity and spatial heterogeneity of design rainstorm under nonstationarity and stationarity hypothesis across mainland China

Zhaoyang Zeng, Chengguang Lai, Zhaoli Wang, Xiaohong Chen, Zhenxing Zhang, Xiangju Cheng

Research output: Contribution to journalArticle

Abstract

Understanding the trend characteristics of design rainstorm and spatial heterogeneity of extreme precipitation is of great importance to reduce disasters induced by rare extreme precipitation. Using a high-resolution (0.5° × 0.5°) daily gridded data set of precipitation across mainland China from 1961 to 2013, this study investigated the historical changing trend and spatial heterogeneity of design rainstorm using the 30-year moving window method (30YM). Differences in the quantification of the design rainstorm were compared for the use of the 30YM and the 30-year-based increasing window method (30YBI). The results show that a significant increasing intensity but no spatially uniform trend of design rainstorm can be observed across mainland China based on the 30YM analysis. The south, east, and northeast China mainly showed an increasing trend, but the southwest and north China presented a decreasing trend. The spatial heterogeneity of the design rainstorm was greatly enhanced if the nonstationarity assumption was adopted on the national scale. The heterogeneity showed an increasing trend mainly in southeast, north, northeast, and northwest China, and a decreasing trend in southwest and west China, indicating significant regional variation in spatial heterogeneity. For most areas of mainland China, especially for southeastern, northeastern, and western China, use of the most recent precipitation sub-series to quantify the design rainstorm may weaken the potential nonstationarity and guarantee the safety of infrastructure in these areas where design rainfall increases.

Original languageEnglish (US)
Pages (from-to)1795-1808
Number of pages14
JournalTheoretical and Applied Climatology
Volume138
Issue number3-4
DOIs
StatePublished - Nov 1 2019

Fingerprint

rainstorm
trend
disaster
infrastructure
safety
rainfall

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Intensity and spatial heterogeneity of design rainstorm under nonstationarity and stationarity hypothesis across mainland China. / Zeng, Zhaoyang; Lai, Chengguang; Wang, Zhaoli; Chen, Xiaohong; Zhang, Zhenxing; Cheng, Xiangju.

In: Theoretical and Applied Climatology, Vol. 138, No. 3-4, 01.11.2019, p. 1795-1808.

Research output: Contribution to journalArticle

Zeng, Zhaoyang ; Lai, Chengguang ; Wang, Zhaoli ; Chen, Xiaohong ; Zhang, Zhenxing ; Cheng, Xiangju. / Intensity and spatial heterogeneity of design rainstorm under nonstationarity and stationarity hypothesis across mainland China. In: Theoretical and Applied Climatology. 2019 ; Vol. 138, No. 3-4. pp. 1795-1808.
@article{87b2408233da49f3bbe46783eeb610a0,
title = "Intensity and spatial heterogeneity of design rainstorm under nonstationarity and stationarity hypothesis across mainland China",
abstract = "Understanding the trend characteristics of design rainstorm and spatial heterogeneity of extreme precipitation is of great importance to reduce disasters induced by rare extreme precipitation. Using a high-resolution (0.5° × 0.5°) daily gridded data set of precipitation across mainland China from 1961 to 2013, this study investigated the historical changing trend and spatial heterogeneity of design rainstorm using the 30-year moving window method (30YM). Differences in the quantification of the design rainstorm were compared for the use of the 30YM and the 30-year-based increasing window method (30YBI). The results show that a significant increasing intensity but no spatially uniform trend of design rainstorm can be observed across mainland China based on the 30YM analysis. The south, east, and northeast China mainly showed an increasing trend, but the southwest and north China presented a decreasing trend. The spatial heterogeneity of the design rainstorm was greatly enhanced if the nonstationarity assumption was adopted on the national scale. The heterogeneity showed an increasing trend mainly in southeast, north, northeast, and northwest China, and a decreasing trend in southwest and west China, indicating significant regional variation in spatial heterogeneity. For most areas of mainland China, especially for southeastern, northeastern, and western China, use of the most recent precipitation sub-series to quantify the design rainstorm may weaken the potential nonstationarity and guarantee the safety of infrastructure in these areas where design rainfall increases.",
author = "Zhaoyang Zeng and Chengguang Lai and Zhaoli Wang and Xiaohong Chen and Zhenxing Zhang and Xiangju Cheng",
year = "2019",
month = "11",
day = "1",
doi = "10.1007/s00704-019-02937-2",
language = "English (US)",
volume = "138",
pages = "1795--1808",
journal = "Theorectical and Applied Climatology",
issn = "0177-798X",
publisher = "Springer Wien",
number = "3-4",

}

TY - JOUR

T1 - Intensity and spatial heterogeneity of design rainstorm under nonstationarity and stationarity hypothesis across mainland China

AU - Zeng, Zhaoyang

AU - Lai, Chengguang

AU - Wang, Zhaoli

AU - Chen, Xiaohong

AU - Zhang, Zhenxing

AU - Cheng, Xiangju

PY - 2019/11/1

Y1 - 2019/11/1

N2 - Understanding the trend characteristics of design rainstorm and spatial heterogeneity of extreme precipitation is of great importance to reduce disasters induced by rare extreme precipitation. Using a high-resolution (0.5° × 0.5°) daily gridded data set of precipitation across mainland China from 1961 to 2013, this study investigated the historical changing trend and spatial heterogeneity of design rainstorm using the 30-year moving window method (30YM). Differences in the quantification of the design rainstorm were compared for the use of the 30YM and the 30-year-based increasing window method (30YBI). The results show that a significant increasing intensity but no spatially uniform trend of design rainstorm can be observed across mainland China based on the 30YM analysis. The south, east, and northeast China mainly showed an increasing trend, but the southwest and north China presented a decreasing trend. The spatial heterogeneity of the design rainstorm was greatly enhanced if the nonstationarity assumption was adopted on the national scale. The heterogeneity showed an increasing trend mainly in southeast, north, northeast, and northwest China, and a decreasing trend in southwest and west China, indicating significant regional variation in spatial heterogeneity. For most areas of mainland China, especially for southeastern, northeastern, and western China, use of the most recent precipitation sub-series to quantify the design rainstorm may weaken the potential nonstationarity and guarantee the safety of infrastructure in these areas where design rainfall increases.

AB - Understanding the trend characteristics of design rainstorm and spatial heterogeneity of extreme precipitation is of great importance to reduce disasters induced by rare extreme precipitation. Using a high-resolution (0.5° × 0.5°) daily gridded data set of precipitation across mainland China from 1961 to 2013, this study investigated the historical changing trend and spatial heterogeneity of design rainstorm using the 30-year moving window method (30YM). Differences in the quantification of the design rainstorm were compared for the use of the 30YM and the 30-year-based increasing window method (30YBI). The results show that a significant increasing intensity but no spatially uniform trend of design rainstorm can be observed across mainland China based on the 30YM analysis. The south, east, and northeast China mainly showed an increasing trend, but the southwest and north China presented a decreasing trend. The spatial heterogeneity of the design rainstorm was greatly enhanced if the nonstationarity assumption was adopted on the national scale. The heterogeneity showed an increasing trend mainly in southeast, north, northeast, and northwest China, and a decreasing trend in southwest and west China, indicating significant regional variation in spatial heterogeneity. For most areas of mainland China, especially for southeastern, northeastern, and western China, use of the most recent precipitation sub-series to quantify the design rainstorm may weaken the potential nonstationarity and guarantee the safety of infrastructure in these areas where design rainfall increases.

UR - http://www.scopus.com/inward/record.url?scp=85068877585&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85068877585&partnerID=8YFLogxK

U2 - 10.1007/s00704-019-02937-2

DO - 10.1007/s00704-019-02937-2

M3 - Article

AN - SCOPUS:85068877585

VL - 138

SP - 1795

EP - 1808

JO - Theorectical and Applied Climatology

JF - Theorectical and Applied Climatology

SN - 0177-798X

IS - 3-4

ER -