Substantial increase in human-perceived heatwaves in eastern China in a warmer future

Zhang, Jintao; You, Qinglong; Ren, Guoyu; Ullah, Safi

doi:10.1016/j.atmosres.2022.106554

Cited by 16 publications

(6 citation statements)

References 95 publications

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“…Following previous studies (Ding et al., 2021; Y. Wang et al., 2019; J. Zhang et al., 2023), we adopted the wet bulb globe temperature (WBGT) and the wind chill temperature (WCT) to measure heat and cold perceived temperatures, respectively; accordingly, WBGT (WCT) was calculated for the summer (winter) months.…”

Section: Methodsmentioning

confidence: 99%

“…Although the global warming revealed by temperature‐based observations are large and significant, they may not always be consistent with how people feel because the human body's thermal sensations are determined by the combined influence of meteorological factors such as temperature, humidity, wind speed, and solar radiation (de Freitas & Grigorieva, 2015; F. Wang et al., 2022). In hot summers, high humidity prevents perspiration from the skin to the environment, aggravating heat stress for people (Lin et al., 2019; J. Zhang et al., 2023). By contrast, high wind speed during cold winters can swiftly reduce the body's ability to store heat and significantly aggravate how chilly people feel.…”

Section: Introductionmentioning

confidence: 99%

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Detection and Attribution of Human‐Perceived Warming Over China

Zhang,

Ren,

You

2024

Geophysical Research Letters

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While previous studies have largely focused on anthropogenic warming characterized by surface air temperature, little is known about the behaviors of human‐perceived temperature (HPT), which describe the “feels‐like” equivalent temperature by considering the joint effects of temperature, humidity and/or wind speed. Here we adopted an optimal ﬁngerprinting method to compare seasonal mean HPTs in China with those from simulations conducted with multiple climate models participating in the Coupled Model Intercomparison Project Phase 6. We found clear anthropogenic signals in the observational records of changes in both summer and winter HPTs over the period 1971–2020. Moreover, the anthropogenic greenhouse gas inﬂuence was robustly detected, with clear separation from natural and anthropogenic aerosol forcings. The anthropogenic greenhouse gas forcing plays the dominant role (>90%) of human‐perceived warming. Urbanization effects contribute slightly and moderately to the estimated trends in summer and winter HPTs, respectively, in addition to the effects of external forcing.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Detection and Attribution of Human‐Perceived Warming Over China

Zhang,

Ren,

You

2024

Geophysical Research Letters

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“…Previous researches on heatwaves in China have predominantly focused on Eastern and Southern China because of the high population density and economic development of these regions 26 , 27 . Such as Zhang et al 28 quantify future changes in heatwaves in Eastern China and find that the frequency, duration, and magnitude of heatwaves would increase approximately 5, 4, and 20 times, respectively, compared with the period 1986–2005. Although the sparsely populated Northwest China is particularly sensitive to the effects of heatwaves, limited attention has been paid to the region.…”

Section: Introductionmentioning

confidence: 99%

“…Although the population density in Xinjiang is lower than that of most parts of China, its rapid population growth and concentrated distribution pattern are projected to more people will be affected by frequent heatwaves. In general, the combination of high temperatures and high relative humidity increases the perceived temperature on the human body 28 . However, most existing studies that project heatwaves have only considered air temperature 36 , 37 .…”

Section: Introductionmentioning

confidence: 99%

Projected population exposure to heatwaves in Xinjiang Uygur autonomous region, China

Dong,

Tao,

Zhang

2024

Sci Rep

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The intensification of heatwaves dues to climate change is a significant concern, with substantial impacts on ecosystems and human health, particularly in developing countries. This study utilizes NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP-CMIP6) and projected population data accounting for China’s population policies to project changes in various grades of heatwaves (light, moderate, and severe) and the population exposure to heatwaves (PEH) in Xinjiang under three shared socioeconomic pathways (SSP1–2.6, SSP2-4.5, and SSP5-8.5). The results show that the number of days and intensity of heatwaves in Xinjiang are projected to increase. Heatwaves occurring in Xinjiang will predominantly be severe heatwaves (SHW) in the long-term under the SSP5-8.5 scenario, and the number of SHW days projected to increase by 62 ± 18.4 days compared to the reference period. Changes in heatwaves are anticipated to influence PEH, estimating population exposure to light, moderate, and severe heatwaves (LPEH, MPEH, and SPEH) at 534.6 ± 64 million, 496.2 ± 43.5 million, and 1602.4 ± 562.5 million person-days, respectively, in the long-term under the SSP5-8.5 scenario. The spatial distribution of PEH is projected to be consistent with that of the reference period, with high values persisting in Urumqi, Kashgar and Hotan. Changes in PEH are primarily driven by climate effects, followed by interactive effects, while population effects contribute the least. Therefore, mitigating climate change is crucial to reduce the PEH in Xinjiang.

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“…However, numerous water quality indexes show seasonal fluctuation, which indicates the variation of water quality under different climatic conditions [2]. Currently, global warming is one of the major environmental problems that challenges the further development of human society [3][4][5]. Considering the continuous effect of global warming, thermal cycling of lakes and reservoirs has been greatly influenced, resulting in increased variation of physicochemical processes [6,7].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variation of Water Quality of Taiping Lake in Eastern China

Chen,

Wang,

Qian

et al. 2024

JRACR

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Lakes and reservoirs are an important sources of drinking water for human life. However, numerous water quality indexes show seasonal fluctuation under different climatic conditions. We conducted a one-year investigation of Taiping Lake in year 2022 to construct relationship between water quality parameters and water quality. High water temperature promotes the growth of algae, and the existence of N species could provide the essential nutrient substance for the growing of algae. Under the irradiation of sunlight, algae will consume carbon dioxide through photosynthesis and release oxygen which can raise oxygen levels in the water. However, the rapid growth of algae could influence the acid-base balance in water through the consumption of carbon dioxide; thus, resulting in the increasing of pH values. These pH changes may pose a threat to drinking water.

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Substantial increase in human-perceived heatwaves in eastern China in a warmer future

Cited by 16 publications

References 95 publications

Detection and Attribution of Human‐Perceived Warming Over China

Detection and Attribution of Human‐Perceived Warming Over China

Projected population exposure to heatwaves in Xinjiang Uygur autonomous region, China

Seasonal Variation of Water Quality of Taiping Lake in Eastern China

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