Changes in Extreme Precipitation Over Dry and Wet Regions of China During 1961‐2014

Han, Jingya; Du, Haibo; Wu, Zhengfang; He, Hong S.

doi:10.1029/2018jd029974

Cited by 39 publications

(29 citation statements)

References 92 publications

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“…Changes in the frequency, intensity, spatial extent, duration and timing of weather and climate extremes are more intense compared to changes in average temperatures under this rapid global warming (IPCC 2018). Previous studies have suggested that the number of extreme events has increased approximately in proportion to the rate of the warming trend (WMO 2019), with an increase in both warm and cold extremes and more frequent and severe extreme precipitation events (Bao et al 2017, Han et al 2019, Zheng et al 2019.…”

Section: Introductionmentioning

confidence: 99%

Variations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period 1961–2017

Han

Miao

Duan

et al. 2020

Environ. Res. Lett.

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LETTERVariations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period Abstract Frequent temperature extremes due to climate change have had serious effects on human society and the natural environment. Using a 0.25°×0.25°gridded Tmax (daily maximum temperature) and Tmin (daily minimum temperature) data set and 12 global climate models simulations from the sixth phase of the Coupled Model Intercomparison Project (CMIP6), we investigated variations in yearly temperature extremes in China during the past five decades with respect to four characteristics, namely, their start date, end date, frequency, and intensity. Results showed that the occurrence of nighttime extremes (the cold nights and warm nights) responded strongly to climate change. For 1961-2017, cold extremes started later (3.25 d/decade) and ended earlier (−4.58 d/decade), with decreased frequency (−6.56 d/decade), especially for cold nights, and weakened intensity (0.14°C/ decade). In the same period, warm extremes started earlier (−3.43 d/decade) and ended later (3.15 d/ decade) with increased frequency (6.79 d/decade), especially for warm nights, and enhanced intensity (0.09°C/decade). The spatial pattern of the variations was complex with anomalous regions. Multimodel ensembles (MMEs) from CMIP6 agreed well with observations regarding the average trends of temperature extremes over China, although detailed changes in spatial pattern were not captured adequately. The hazards of temperature extremes deserve close attention in the future due to the complex changes likely to occur across China for various characteristics of these temperature extremes under conditions of climate change.

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Section: Introductionmentioning

confidence: 99%

Variations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period 1961–2017

Han

Miao

Duan

et al. 2020

Environ. Res. Lett.

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“…There is an ongoing interest in exploring the possible changes in climate extremes since they can cause significant damage to both the natural environment and human society [51]. Although the variability of temperature extremes has been the focus of attention during the past several decades, most of the previous studies concerning the changing trends of the temperature extremes have ignored their spatial patterns, characteristics and spatiotemporal heterogeneity [10][11][12][13][14][15][21][22][23]52]. Moreover, existing studies mainly relied on the methods of linear trend analysis, Mann-Kendall test and Pearson correlation analysis but failed to consider the spatial and temporal effects in the methods [26,29,[53][54].…”

Section: Discussionmentioning

confidence: 99%

“…The annual mean temperature has increased by 1.1-1.4 • C at rates of 0.22-0.35 • C per decade, which is higher than the global average over the past 50 years [16,17]. In line with surface warming trends, widespread changes in temperature extremes have been detected across China [18][19][20][21][22]. Shi et al [15] suggested that warm days have increased by 0-0.3% per decade in most parts of China.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Study of Spatiotemporal Variations in Temperature Extremes across China during 1960–2018

Zhao

Chen

2021

Sustainability

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Understanding the changing patterns of extreme temperatures is important for taking measures to reduce their associated negative impacts. Based on daily temperature data derived from 2272 meteorological stations in China, the spatiotemporal variations in temperature extremes were examined with respect to covariates by means of the Mann–Kendall test and a spatiotemporal model during 1960–2018. The results indicated that the temporal changes in cold extremes showed decreasing trends and warm extremes experienced increasing trends across almost all of China, with mean change rates of −3.9 days, −1.8 days, 3.7 days and 2.3 days per decade for TN10p, TX10p, TN90p and TX90p, respectively. Nighttime warming/cooling was higher than daytime warming/cooling, which indicated that trends in minimum temperature extremes are more rapid than trends in maximum temperature extremes. In addition, the temporal effect on the temperature extremes varied throughout the year, with significant increasing trends in the temporal heterogeneity of warm extremes occurring during 1992–2018. The areas with strong spatial heterogeneity of cool nights mainly included northeastern and central China, and the spatial variation on cool days was more prominent in northern China. For warm nights, the areas showing high spatial heterogeneity were mainly located in the northwestern part of China, while areas for warm days were distributed in northern China. Our results provide meaningful information for a deeper understanding of the spatiotemporal variations in temperature extremes across mainland China.

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“…In recent decades, observed climate data and climate models have shown that warming of the climate system leads to increases in extreme weather and climate events, such as heatwaves, cold spells, floods, droughts, and rainstorms [3][4][5][6][7]. There is general agreement that changes in the frequency or intensity of extreme weather and climate events would have a profound socioeconomic and environmental impact [5,8,9]. For instance, between 1998 and 2017, more than 526,000 people died worldwide and losses of US $3.47 trillion were incurred as the direct result of more than 11,500 extreme weather events [10].…”

Section: Introductionmentioning

confidence: 99%

“…Temperature and precipitation extremes have been studied both on global [3,6,11,12] and on regional scales [13][14][15][16][17]. Previous studies have found widespread significant changes in temperature extremes associated with warming, however, spatial patterns of changes in extreme precipitation trends appear mixed on regional scales [3,9]. Therefore, regional assessment in various climatic and geographic regions is needed to understand the uncertainties in change trends of extreme climate events.…”

Section: Introductionmentioning

confidence: 99%

Observed Changes in Temperature and Precipitation Extremes Over the Yarlung Tsangpo River Basin during 1970–2017

Liu

et al. 2019

Atmosphere

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Twenty-five climate indices based on daily maximum and minimum temperature and precipitation at 15 meteorological stations were examined to investigate changes in temperature and precipitation extremes over the Yarlung Tsangpo River Basin (1970–2017). The trend-free prewhitening (TFPW) Mann–Kendall test and Pettitt’s test were used to identify trends and abrupt changes in the time series, respectively. The results showed widespread significant changes in extreme temperature indices associated with warming, most of which experienced abrupt changes in the 1990s. Increases in daily minimum and maximum temperature were detected, and the magnitude of daily minimum temperature change was greater than that of the daily maximum temperature, revealing an obvious decrease in the diurnal temperature range. Warm days and nights became more frequent, whereas fewer cold days and nights occurred. The frequency of frost and icing days decreased, while summer days and growing season length increased. Moreover, cold spell length shortened, whereas warm spell length increased. Additionally, changes in the precipitation extreme indices exhibited much less spatial coherence than the temperature indices. Spatially, mixed patterns of stations with positive and negative trends were found, and few trends in the precipitation extreme indices at individual stations were statistically significant. Generally, precipitation extreme indices showed a tendency toward wetter conditions, and the contribution of extreme precipitation to total precipitation has increased. However, no significant regional trends and abrupt changes were detected in total precipitation or in the frequency and duration of precipitation extremes.

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Changes in Extreme Precipitation Over Dry and Wet Regions of China During 1961‐2014

Cited by 39 publications

References 92 publications

Variations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period 1961–2017

Variations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period 1961–2017

A Comprehensive Study of Spatiotemporal Variations in Temperature Extremes across China during 1960–2018

Observed Changes in Temperature and Precipitation Extremes Over the Yarlung Tsangpo River Basin during 1970–2017

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