Decrease of light rain events in summer associated with a warming environment in China during 1961–2005

Qian, Weihong; Fu, Jinbo; Zeng, Yan

doi:10.1029/2007gl029631

Cited by 145 publications

(136 citation statements)

References 18 publications

(21 reference statements)

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“…four seasons. In fact, several studies have drawn the same conclusion [17,19,24,25]. Liu et al [18] further indicated that trace precipitation events decreased abruptly starting in 1982 when the temperature started rising rapidly in China.…”

Section: Precipitation Spectral Change In Chinamentioning

confidence: 62%

“…Meanwhile, studies on light precipitation over China also have made substantial achievements and have found a significant decrease of light precipitation in the last several decades [17,18]. Some studies have attributed the decrease of light precipitation to increased temperature [17,19], while others have argued that the increased aerosol pollution has led to the reduction of light precipitation through cloud microphysical processes [8]. However, more detailed analyses need to be made regarding changes and their possible explanations in the whole precipitation spectra, ranging from light to extremely heavy, on different spatial scales.…”

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confidence: 99%

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Change of precipitation intensity spectra at different spatial scales under warming conditions

2013

Chin. Sci. Bull.

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The long-term change of the whole spectra of precipitation intensity in China is examined using observed daily data recorded at 477 surface stations for the period from 1961 to 2008. The results show a spatially coherent decrease of trace precipitation despite different reduction magnitudes among the regions. For measurable precipitation, significant regional and seasonal characteristics are observed. In autumn, the whole measurable precipitation decreased over Eastern China (east of 98°E). In summer and winter, a significant increase of heavy precipitation and decrease of light precipitation are detected south of Eastern China. In Western China, measurable precipitation is found to have increased in all four seasons. Composite analysis reveals a quasi-linear relationship between increasing surface temperature and precipitation on a global scale. The responses of precipitation at different intensities to the increased temperature are distinct, with a significant spectra-shifting from light to heavy precipitation. Compared with precipitation over the ocean, the amplification of heavy precipitation over land is relatively less, most likely constrained by the limited water supply. The response of regional precipitation to global warming shows greater uncertainties compared with those on the global scale, perhaps due to interference by more complex topography and land cover, as well as human activities, among other factors. precipitation spectra, global warming, spatial scale, extreme precipitation, composite analysis Citation:Wu F T, Fu C B. Change of precipitation intensity spectra at different spatial scales under warming conditions.

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Section: Precipitation Spectral Change In Chinamentioning

confidence: 62%

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confidence: 99%

Change of precipitation intensity spectra at different spatial scales under warming conditions

2013

Chin. Sci. Bull.

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“…In China, trends in extreme precipitation have been documented in several studies, which showed that the occurrence of precipitation extremes increases at the national scale and exhibits apparent regional differences Liu et al, 2014;Liu et al, 2013;Qian et al, 2007;Su et al, 2008;Wan et al, 2013;Wang et al, 2013;Wang et al, 2008;Yang et al, 2008;You et al, 2008;Zhai et al, 1999;Zhang et al, 2011a). For example, Qian et al (2007) found that the frequencies of extreme rain events increased in eastern China centered on the middle-lower reaches of the Yangtze River but decreased in North China and Southwest China.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Qian et al (2007) found that the frequencies of extreme rain events increased in eastern China centered on the middle-lower reaches of the Yangtze River but decreased in North China and Southwest China. Zhai et al (1999) examined observational data in China after 1950 and detected an increase well above the normal precipitation intensity and a statistically significant trend in the abovenormal rain days.…”

Section: Introductionmentioning

confidence: 99%

Recent changes in extreme precipitation and drought over the Songhua River Basin, China, during 1960–2013

Song

Sun

et al. 2015

Atmospheric Research

148

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Based on ten indices of extreme precipitation and one drought index (composite index, CI), the trends in extreme events were investigated using a Mann-Kendall non-parametric method at 39 stations in the Songhua River Basin (SHB) during 1960-2013. The regionally averaged wet-day precipitation (PRCPTOT) increased at a rate of 1.65 mm/year (R 2 = 0.28, P = 0.13), in which 82% of the stations experienced increases, but only 4 stations showed significant positive trends. The annual R95 and R99 exhibited slight upward trends at rates of 1.37 (R 2 = 0.21, P = 0.27) and 1.28 mm/year (R 2 = 0.23, P = 0.23) over the last 54 years; however, there were not significant trends in R95 and R99 at the 0.05 level. PRCPTOT, R95 and R99 showed similar spatial trends, in which positive trends mainly occurred in the northern and southeastern basins. The trends in the maximum 1-day precipitation (RX1day) and maximum 5-day precipitation (RX5day) do not show a prevalent trend (approximately 50% of the stations have a positive trend and the remaining stations have a negative trend). The simple daily intensity index (SDII) significantly decreased at an annual rate of 0.02 mm/d during 1960-2013 (R 2 = 0.66, P b 0.01); spatially, 49% of the stations experienced statistically significant decreases at the 0.05 level based on the Mann-Kendall non-parametric test. The regionally averaged heavy (R10mm) and very heavy precipitation days (R20mm) and consecutive wet days (CWD) showed no significant trends during the past 54 years; however, several individual extreme precipitation events, such as the flood of 1998 in the SHB, were well detected by these indices. The regionally averaged consecutive dry days (CDD) significantly increased (R 2 = 0.79, P b 0.01) at a rate of 0.22 days/year from 1960 to 2013. All of the stations exhibited statistically significant increases in CDD, excluding the Tongyu station in the western basin. The monthly RX5day values were highest in summer, from June to August, in the SHB; a peak occurred in July (67.5 mm) in the SHB during 1960-2013. The CI peaked in July, with the highest value of 0.2 in the SHB during 1960-2013. However, the two lowest CI values occurred in spring and fall, with values of −0.56 and −0.41, respectively. During April and May, when most of the spring drought events occur, a prevalent trend does not exist; moreover, almost no stations have statistically significant CI increases. In August and September, respectively 79% and 97% of the stations exhibited a CI negative trend, but only 2 and 6 stations showed significant decreases at the 0.05 level. The increasing extreme climate events present a challenge for local water resources management.

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“…The extreme precipitation and its ratio to mean precipitation have also enhanced remarkably in a large area of China, particularly in Northwestern and Eastern China (Zhai et al 2005;Bai et al 2007;Feng et al 2007;Wang et al 2012;Sun and Ao 2013;Wu et al 2015;Zhou et al 2016). Meanwhile, a decrease in rainy days has been observed over most regions (Zhai et al 1999(Zhai et al , 2005Liu et al 2005;Qian et al 2007;You et al 2008;Zhou et al 2016). …”

Section: Introductionmentioning

confidence: 93%

Trends in autumn rain of West China from 1961 to 2014

Zhang

Wang

Zhou

et al. 2018

Theor Appl Climatol

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Autumn rain of West China is a typical climate phenomenon, which is characterized by continuous rainy days and large rainfall amounts and exerts profound impacts on the economic society. Based on daily precipitation data from 524 observation stations for the period of 1961-2014, this article comprehensively examined secular changes in autumn rain of West China, including its amount, frequency, intensity, and associated extremes. The results generally show a significant reduction of rainfall amount and rainy days and a significant enhancement of mean rainfall intensity for the average of West China during autumn (SeptemberOctober) since 1961. Meanwhile, decreasing trends are consistently observed in the maximum daily rainfall, the longest consecutive rainy days, the greatest consecutive rainfall amount, and the frequencies of the extreme daily rainfall, consecutive rainfall, and consecutive rainfall process. Further analysis indicates that the decreases of autumn rainfall and related extremes in West China are associated with the decreases in both water vapor content and atmospheric unstable stratification during the past decades. On the regional scale, some differences exist in the changes of autumn rainfall between the eastern and western parts of West China. Besides, it is found that the autumn rainy season tends to start later and terminate earlier particularly in eastern West China.

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Decrease of light rain events in summer associated with a warming environment in China during 1961–2005

Cited by 145 publications

References 18 publications

Change of precipitation intensity spectra at different spatial scales under warming conditions

Change of precipitation intensity spectra at different spatial scales under warming conditions

Recent changes in extreme precipitation and drought over the Songhua River Basin, China, during 1960–2013

Trends in autumn rain of West China from 1961 to 2014

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