Assessment on Temporal and Spatial Variation Analysis of Extreme Temperature Indices: A Case Study of the Yangtze River Basin

Shi, Guangxun; Ye, Peng

doi:10.3390/ijerph182010936

Cited by 15 publications

(7 citation statements)

References 51 publications

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“…The results show that the warming characteristics along the QTPTC were similar to those in other regions. In the region along the QTPTC, the region of the QTP (Gong et al., 2022), Yangtze River Basin (Shi & Ye, 2021), Finland and Global Land (Irannezhad et al., 2018), the trends of most indices were consistent. Particularly in the QTP (Gong et al., 2022), which covers most areas along the transportation corridor, the trend based on the in situ observed station data was completely consistent with the trend in this study based on the estimated temperature gridded data.…”

Section: Discussionmentioning

confidence: 89%

Spatiotemporal Trends of Extreme Temperature Events Along the Qinghai‐Tibet Plateau Transportation Corridor From 1981 to 2019 Based on Estimated Near‐Surface Air Temperature

Wang,

Gao,

et al. 2023

JGR Atmospheres

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The intensification of global warming leads to the increased frequency of extreme temperature events. Many studies have reported on numerous regions facing extreme hot and cold temperatures to some degree. In this study, the daily maximum, minimum and mean near‐surface air temperatures were estimated to explore the detailed spatial trends of extreme temperature events along the Qinghai‐Tibet Plateau Transportation Corridor (QTPTC). Sixteen extreme temperature indices were used to represent extreme temperature events, and the Mann‐Kendall trend test and Sen's slope estimation method were employed to explore the spatiotemporal trends of extreme temperatures along the QTPTC during 1981–2019. The possible factors that affect the trends of extreme temperature events were also discussed, indicating that: (a) There was an exacerbation of extreme hot events, while the prevalence of extreme cold events weakened along the QTPTC. This was in accordance with the trend of global warming. (b) The trends of extreme temperature indices based on daily minimum temperature were stronger than those based on daily maximum temperature in most areas, except for the eastern region. Furthermore, as altitude increased, the amplitude of warming intensified. (c) Unlike the trend in most areas, the intensified warming trend occurred in the low‐altitude areas in the eastern region where there are more human activities and rapid urbanization, and the daily maximum temperature trend was more severe there. The results can provide references for policymakers to formulate corresponding adaptation strategies, addressing the impacts of extreme temperature events on transportation facilities with significant elevation differences.

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Section: Discussionmentioning

confidence: 89%

Spatiotemporal Trends of Extreme Temperature Events Along the Qinghai‐Tibet Plateau Transportation Corridor From 1981 to 2019 Based on Estimated Near‐Surface Air Temperature

Wang,

Gao,

et al. 2023

JGR Atmospheres

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“…A study on extreme temperature change of the last 110 years in Northeast China suggested that the frequency of cold surge events increased significantly, occurring from the mid-1950s to late-1980s [26]. The extreme low temperatures are closely related to regional warming [27], has exerted a considerable impact on the global ecosystem and economic society [28][29]. Coastal regions are also affected by extreme low temperatures.…”

Section: Discussionmentioning

confidence: 99%

Spatio-Temporal Characteristics of Extreme Cold Events and Their Impacts on Population and Economy in Tianjin Binhai New Area, China

Meng¹,

He²,

Guo³

et al. 2023

Pol. J. Environ. Stud.

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Extreme weather events, such as extreme cold events (ECEs), are occurring more frequently due to climate change and variability. The ECEs have severe impacts on people's lives and the economy. In this study, we used observational data for the period 1978-2020 from three national meteorological stations and forty-nine automatic weather stations located in the Tianjin Binhai New Area (TBNA), China, to analyze the spatio-temporal characteristics of ECEs and evaluate their impacts on population and economy. Our results indicate that the annual extreme minimum temperature showed a slight upward trend in the TBNA during the past 43 years. Extreme minimum temperatures were higher in the central part (-15 to -19ºC) and lower in the northern and southern parts of the TBNA (-19 to -23ºC). The cumulative decreases in temperature were higher in the west and lower in the east. ECEs were most frequent in autumn, followed by winter, and least frequent in summer. The months with the most ECEs were October and November. The ECEs lasted longer in the southern part of the TBNA and were shorter in the central and northern parts. The ECEs lasted, on average, approximately 15 days in the south and 7-10 days in most other areas. Places in the TBNA at a high risk of experiencing the ECEs include Gulin subdistrict and other areas in the central part of the TBNA, whereas Zhongtang town and other places in the southern TBNA are low-risk areas. In terms of the impact of ECEs on populations, the central parts of the TBNA such as Hangzhou subdistrict and the northern parts of the TBNA such as Hangu subdistrict are areas of moderate risk; most others are low-risk areas. In terms of the impact of ECEs on Gross Domestic Product (GDP), central parts of the TBNA such as Hujiayuan subdistrict are moderate-risk areas while most others are low-risk areas. Our findings serve as a basis

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“…The Yangtze River is extraordinarily vulnerable to climate warming due to its dense population and the rapidly developed economy [33]. A majority of extreme temperature indices appear as abrupt changes since the last decades, with the main cold indices changing abruptly in the 1980s and the main warm indices changing abruptly in the late 1990s and early 2000s [40]. The maximum and minimum temperatures have increased significantly at rates of 0.19 • C and 0.37 • C per decade, respectively [41].…”

Section: Introductionmentioning

confidence: 99%

“…A recent study has reported that the magnitude of the changes in extreme climate events in the Yangtze River basin is projected to increase with the increasingly warming climate [42]. These variations have exerted a considerable influence on society and the ecosystem, making climate change one of the most urgent challenges facing the YRB [40].…”

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Variability in Hydroclimate over the Upper Yangtze River Basin, China

Yang

Bing

2022

Atmosphere

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As global warming produces dramatic climate changes, water management is facing increasingly serious challenges. Given to the process of climate change and its complex effects on watershed hydrology, this paper investigates the spatial and temporal variation characteristics of major climatic factors (i.e., precipitation and temperature) over the upper Yangtze River basin (UYRB), China. The statistical analyses are based on annual and seasonal scales during 1951–2020 with a recorded period of seven decades. The Mann–Kendall nonparametric test and R/S analysis are used to record the temporal trends (past and future) of climate variables; the Pettitt test, standard normal homogeneity test and Buishand test are used to detect the homogeneity in climate series. The sensitivities of the streamflow to climatic parameters are assessed at the watershed scale, especially considering the Three Gorges Dam’s (TGD) effect on changing runoff. The results of the study indicate that the annual precipitation of 29 out of 34 series indicate homogeneity, while 31 out of 34 annual mean temperature series show heterogeneity, with jump points around 1997 in the mean temperature of 20 sites. Detectable changes in precipitation were not observed during 1951–2020; however, the temperature increased significantly in the whole basin on annual and seasonal scales, except for several stations in the eastern part. The magnitude of increase in air temperature in high altitudes (Tibet Plateau) is higher than that in low altitudes (Sichuan Plain) over the last seven decades, and future temperatures continue to sharply increase in high altitudes. The TGD plays an important role in explaining the seasonal variations in streamflow at Yichang station, with streamflow experiencing a sharp increase in winter and spring (dry season) and a decrease in summer and autumn (rainy season) compared to the pre-TGD period. The streamflow variation at an annual scale is mainly regulated by climate fluctuation (variation in precipitation). During the last seven decades, increasing air temperature and decreases in rainfall and runoff signify reduced water resources availability, and the climate tends to be warmer and drier over the basin. The sensitivity of the streamflow to watershed precipitation is higher than that to temperature, with variation in annual rainfall explaining 71% of annual runoff variability.

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Assessment on Temporal and Spatial Variation Analysis of Extreme Temperature Indices: A Case Study of the Yangtze River Basin

Cited by 15 publications

References 51 publications

Spatiotemporal Trends of Extreme Temperature Events Along the Qinghai‐Tibet Plateau Transportation Corridor From 1981 to 2019 Based on Estimated Near‐Surface Air Temperature

Spatiotemporal Trends of Extreme Temperature Events Along the Qinghai‐Tibet Plateau Transportation Corridor From 1981 to 2019 Based on Estimated Near‐Surface Air Temperature

Spatio-Temporal Characteristics of Extreme Cold Events and Their Impacts on Population and Economy in Tianjin Binhai New Area, China

Spatio-Temporal Variability in Hydroclimate over the Upper Yangtze River Basin, China

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