Spatiotemporal change of diurnal temperature range and its relationship with sunshine duration and precipitation in China

Shen, Xiangjin; Liu, Binhui; Li, Guangdi; Wu, Zhengfang; Jin, Yinghua; Yu, Pujia; Zhou, Daowei

doi:10.1002/2014jd022326

Cited by 132 publications

(133 citation statements)

References 77 publications

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“…Rates of change for TM and TN showed similar spatial patterns, with the warming in the southeast region being generally weaker than the warming in the northwest region; however, for TX, severe warming was observed in the southeast. The increase in TN was larger than the increase in TX across the plateau as a whole, which is consistent both with global trends (Braganza, 2004;Lewis and Karoly, 2013) and with other regional trends (Shen et al, 2014;Wang et al, 2014). The inconsistent rates of change between TX and TN result in a general decrease in DTR, which is highly sensitive to small changes in either TX or TN (Dai et al, 1999).…”

Section: Discussionsupporting

confidence: 63%

Temperature and precipitation changes over the Loess Plateau between 1961 and 2011, based on high-density gauge observations

Sun

Miao

Duan

et al. 2015

Global and Planetary Change

114

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a b s t r a c t a r t i c l e i n f oThe Loess Plateau has the most serious soil erosion in China and is the main source of sediment in the Yellow River. In this study, we systematically analyzed the changes in the mean and extreme values for temperature and precipitation over the Loess Plateau between 1961 and 2011, using a gridded dataset with high-density gauge data. Statistically significant positive trends (p b 0.05) in the mean, maximum, and minimum temperature values (TM, TX, and TN) were identified in almost all regions. Warming rates increased from the southeast to the northwest of the Loess Plateau for both TM and TN; however, for TX, the greatest warming increases were observed in the southeast region. We also found general decreases in the diurnal temperature range and the number of cold nights and cold days, and increases in the length of the growing season and the number of warm days and warm nights. Moreover, relatively intense changes occurred in the high percentile ranges for both TX and TN. The total amount of precipitation on wet days decreased over a large area of the Loess Plateau, particularly in the southeast region. The inequality in the spread of precipitation over the year (temporal inequality) increased extensively over the past fifty years in the wet region. Approximately 37.60% of the total area with a reduced amount of precipitation had concurrent decreases in both the frequency and intensity of rainfall. However, approximately 37.20% of the area with a reduced amount of precipitation had decreases in the frequency but increases in the intensity of rainfall. The proportion of days with light or moderate precipitation was decreased in the wet region which mainly located in the southwest of the Loess Plateau, but there were only minor changes in extreme precipitation events. Overall, when both temperature and precipitation changes were combined, we observed that the southwest of the Loess Plateau has undergone the largest degree of climate change. Consequently, both the ecological environment and local agriculture on the Loess Plateau will suffer increased challenges: the decline in water availability will lead to more frequent droughts, yet the risk of flood and soil erosion from extreme precipitation events will not be reduced.

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Section: Discussionsupporting

confidence: 63%

Temperature and precipitation changes over the Loess Plateau between 1961 and 2011, based on high-density gauge observations

Sun

Miao

Duan

et al. 2015

Global and Planetary Change

114

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“…() and You et al . (), and it is similar to the results obtained in other regions, such as Northeast China (Shen et al, ) and South America (Vincent et al, ).…”

Section: Discussionmentioning

confidence: 99%

Spatial and temporal variations in extreme temperature in Central Asia

Feng

Zheng

et al. 2017

Intl Journal of Climatology

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Central Asia, a typical arid and semi‐arid area, is very sensitive to climate change and is projected to undergo vigorous warming trend in future. However, it is still unclear how extreme temperatures have changed. Therefore, using the daily maximum and minimum temperatures collected from 108 stations in the study area from 1981 to 2015, the spatial–temporal variations in extreme temperature in Central Asia were analysed on both annual and seasonal scales based on 11 indices from The Expert Team on Climate Change Detection and Indices. Results show that: (1) from 1981 to 2015, all extreme temperature values exhibited increasing trends on an annual scale, but maximum temperature (TMAX) increased faster than the minimum temperature (TMIN), leading to an overall increase in the diurnal temperature range (DTR). Most of the stations in Central Asia, except for those in Xinjiang (China), exhibited an increasing trend in DTR, while most of the stations in Xinjiang (China) exhibited reversely significant decreasing trends. (2) TMAX, TMIN and DTR increased significantly, mainly during spring and summer. The trends of most warm extreme indices (warm days, warm nights and warmest days) indicate that the warming mainly occurred in spring, while most cold extreme indices (cool days, cool nights and coldest nights) exhibited significant warming trends in autumn. Dominant warming during spring and autumn can lead to longer summers, which may further accelerate the frequencies and magnitudes of temperature extremes. (3) Additionally, TMAX, TMIN and the percentile‐based warm indices all exhibited significant increasing trends from southwestern Central Asia (Turkmenistan) to eastern Central Asia (Xinjiang (China)) via the Tianshan Mountains. Although the percentile‐based cold indices showed decreasing trends in this region, they were too minor to offset the overall warming trend. With longer summers, stronger and more prolonged melting seasons were detected in the mountains of Central Asia.

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“…And the results showed that in our study watershed the evaporation paradox phenomenon may be caused by sunshine duration decrease, and were similar to a previous study. Sunshine duration is one of the most important meteorological factors, and researchers have found that many regions in china had a decreasing trend in 1961-2000 -similar to the trend in other regions of the earth [37][38]. And in Guangxi Province (the location of the study area), sunshine duration also showed a decreasing trend of -35.1h/10a [39].…”

Section: Relations Between Potential Evapotranspiration and Other Weamentioning

confidence: 99%

Climate Change, the Evaporation Paradox, and Their Effects on Streamflow in Lijiang Watershed

Jiang¹,

Wang²

2018

Pol. J. Environ. Stud.

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Spatiotemporal change of diurnal temperature range and its relationship with sunshine duration and precipitation in China

Cited by 132 publications

References 77 publications

Temperature and precipitation changes over the Loess Plateau between 1961 and 2011, based on high-density gauge observations

Temperature and precipitation changes over the Loess Plateau between 1961 and 2011, based on high-density gauge observations

Spatial and temporal variations in extreme temperature in Central Asia

Climate Change, the Evaporation Paradox, and Their Effects on Streamflow in Lijiang Watershed

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