Advances in Climate Change Research最新文献

{"title":"Future climatic risks faced by the Beautiful China Initiative: A perspective for 2035 and 2050","authors":"Zhong-Xue Ma ,&nbsp;Hui-Juan Cui ,&nbsp;Quan-Sheng Ge","doi":"10.1016/j.accre.2025.01.002","DOIUrl":"10.1016/j.accre.2025.01.002","url":null,"abstract":"<div><div>Identifying high-risk areas for climatic disasters and their overlaps during the implementation of the Beautiful China Initiative fills a critical gap in disaster risk research, which often lacks quantitative analyses of the combined risks from multiple disasters. This study evaluates key climatic risks and their overlaps, including heavy storms, heatwaves, and droughts, that may affect the Beautiful China Initiative objectives in 2035 and 2050. The analysis is based on three shared socioeconomic pathways (SSP126, SSP370, and SSP585), incorporating vulnerability, disaster risks, and exposure levels. The findings indicate that the severity of climatic risks in China will intensify over time and with climate warming. The western regions will face more severe single-climate risks, while the eastern regions will encounter increasingly severe comprehensive climatic risks. In the western regions, by 2035, the Tarim Basin in Xinjiang is projected to experience heatwave risks exceeding Level 5, while Tibet and Qinghai will face drought risks above Level 6. By 2050, more areas will escalate to Level 6 and 7 risks. In the eastern regions, by 2035, Shandong, Henan, the Pearl River Delta, and the Beijing, Tianjin, Hebei region are expected to face comprehensive risks from heavy storms, heatwaves, and droughts. By 2050, the overlapping high-risk areas will expand, covering the eastern parts of the Yangtze River Economic Belt. Furthermore, higher radiative forcing scenarios are associated with increased risks. This study provides critical insights for developing targeted disaster prevention and management systems across different regions of China, offering guidance for the effective implementation of the Beautiful China Initiative.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"16 1","pages":"Pages 141-153"},"PeriodicalIF":6.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Traditional ecological knowledge in High Mountain Asia: A pathway to climate resilience in agriculture amidst changing climates","authors":"Lavanya Witharana ,&nbsp;Deliang Chen ,&nbsp;Julia Curio ,&nbsp;Anders Burman","doi":"10.1016/j.accre.2025.01.009","DOIUrl":"10.1016/j.accre.2025.01.009","url":null,"abstract":"<div><div>Traditional Ecological Knowledge (TEK) often represents centuries of empirical observation and adaptation to specific ecological conditions, which is relevant to meaningful nature-human relations. Yet, TEK is rarely taken into account. This study examines the role of TEK-based agriculture in promoting adaptation and resilience to climate change in the mountain agricultural systems of the Hindu Kush Himalaya (HKH) region. Through an extensive literature review, it identifies and synthesizes TEK-based agricultural practices, with a focus on soil and fertility management, strategies to manage agroecological disruptions and agroforestry. The findings indicate that these practices align with the climate change adaptation priorities of HKH countries, particularly in developing water- and nutrient-efficient crop cultivation systems and enhancing soil organic matter. While TEK-based agricultural methods can support regional climate change adaptation and resilience, the alteration or loss of traditional practices due to socio-economic factors may worsen the impacts of climate change. Therefore, recognizing and validating TEK within regional and local adaptation frameworks are essential for maintaining the resilience of traditional agriculture in the HKH region.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"16 1","pages":"Pages 167-182"},"PeriodicalIF":6.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climatic impacts on electricity consumption of urban residential buildings in China","authors":"Yang-Yang Guo ,&nbsp;Mei-Xuan Teng ,&nbsp;Chen Zhang ,&nbsp;Sheng-Nan Wang ,&nbsp;Yi-Ming Wei","doi":"10.1016/j.accre.2024.12.004","DOIUrl":"10.1016/j.accre.2024.12.004","url":null,"abstract":"<div><div>Evaluating the effects of climate change is crucial for developing effective strategies for both mitigation and adaptation policies. However, a comprehensive quantification of the precise effects of climate change on electricity consumption in China's urban residential buildings has been hampered by the scarcity of data. Here, we employ a verified county-level unbalanced panel dataset to estimate the effect of cooling degree days (CDD) and heating degree days (HDD) on the electricity consumption of urban residential buildings in China. The results indicate that a 1% increase in CDD and HDD is linked to a corresponding rise of 0.114% and 0.457% in electricity consumption per unit of floor space in urban residential buildings, respectively. However, these effects are diminished as income increases, implying residents have more strategies to adapt to climate change as income rises. The impacts of temperature fluctuations exhibit variability across different climate zones, building heights, and construction years. Specifically, buildings in regions characterized by hot summers and cold winters, as well as those with hot summers and warm winters, exhibit greater sensitivity to temperature fluctuations compared to the buildings located in regions with severe cold and predominantly cold climates. Additionally, low-rise buildings tend to consume more electricity than multi-story and mid-to-high-rise buildings in response to temperature variation. Interestingly, new buildings are more vulnerable to temperature fluctuations than older buildings. These findings offer a comprehensive and accurate assessment of climatic impacts in different climate zones, enabling a more profound comprehension of climate change. This study provides empirical evidence that the effect of climate change on building energy use varies with building heights, addressing a critical gap in prior research.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"16 1","pages":"Pages 25-34"},"PeriodicalIF":6.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of flood loss in administrative units based on improved vulnerability curves","authors":"Rui Yan ,&nbsp;Lu-Lu Liu ,&nbsp;Jie Wang ,&nbsp;Shuang Zhou ,&nbsp;Shao-Hong Wu","doi":"10.1016/j.accre.2024.12.008","DOIUrl":"10.1016/j.accre.2024.12.008","url":null,"abstract":"<div><div>The vulnerability curve is a key method for assessing flood loss risk, which contributes to the improvement of flood prevention and relief systems. However, existing vulnerability curves are typically developed on a large spatial scale, and intraregional variations in vulnerability are overlooked. This study aims to quantify the spatial heterogeneity of vulnerability within a region and elucidate the impact of vulnerability on flood losses. With Hubei and Hunan provinces in China as case study areas, vulnerability curves are constructed using a mixed-effects model. These curves are then combined with flood intensities across various return periods to estimate flood losses. In addition, the influence of vulnerability and flood intensity on flood losses is analyzed. The results indicate that the mixed-effects model is effective in constructing distinct vulnerability curves for smaller-scale administrative units (<em>e.g.</em> cities) while also assessing the overall vulnerability of the study area, and it achieves high accuracy (<em>R</em>² &gt; 0.75). The disparities in loss rates between cities increase under longer return periods. Furthermore, the variation in vulnerability between cities is the primary factor influencing flood losses for short return periods, whereas differences in hazard intensity have a greater impact on city flood losses during longer return periods. This study provides methods and recommendations for systematic flood risk reduction and proposes pathways for enhancing climate resilience.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"16 1","pages":"Pages 154-166"},"PeriodicalIF":6.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Projection for the occurrence dates of heat stress in North China","authors":"Lu-Lei Bu ,&nbsp;Kai-Wen Zhang ,&nbsp;Zhi-Yan Zuo ,&nbsp;Deliang Chen","doi":"10.1016/j.accre.2025.01.011","DOIUrl":"10.1016/j.accre.2025.01.011","url":null,"abstract":"<div><div>High humidity has been causing extreme heat stress during summer in North China, presenting threats to human life. Although future changes in the intensity and frequency of heat stress have been well recognized, it remains unclear whether the alterations in humidity resulting from increasing greenhouse gases (GHG) will change the occurrence date of heat stress in North China in the future. In this study, we identify three models, including CMCC-CM2-SR5, CMCC-ESM2, and TaiESM1, as the models that most reasonably simulate the dependence of the heat stress on the near-surface specific humidity and the occurrence date of the heat stress in North China. Based on these three models, we show that the increased specific humidity during the warm season, which is caused by rising GHG emissions, will extend the occurrence date of extreme heat stress from only July and August under the SSP1-2.6 scenario to June through September under SSP5-8.5 scenario. A more prevalent occurrence of the extreme heat stress during the warm season under SSP5-8.5 scenario will cause a three-to four-fold increase in the population exposure to the Severe heat stress (wet-bulb temperature &gt; 27.5 °C) compared to the SSP1-2.6 scenario. The findings highlight that North China will suffer more prevalent and extreme heat stresses in the future due to the GHG-caused increasing humidity. The results are valuable for developing adaptation and mitigation strategies to minimize the impacts of the extreme heat stress in North China.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"16 1","pages":"Pages 82-92"},"PeriodicalIF":6.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characteristics of Musta Glacier surges and their responses to climate change between 1976 and 2023","authors":"Yong-Peng Gao ,&nbsp;Shi-Yin Liu ,&nbsp;Jin-Liang Wang ,&nbsp;Xiao-Jun Yao ,&nbsp;Miao-Miao Qi ,&nbsp;Peng-Bin Liang ,&nbsp;Jian-Xin Mu ,&nbsp;Xing-Gang Ma ,&nbsp;Yu Zhu ,&nbsp;Fu-Ming Xie ,&nbsp;Zong-Li Jiang ,&nbsp;Zhen Zhang","doi":"10.1016/j.accre.2024.12.007","DOIUrl":"10.1016/j.accre.2024.12.007","url":null,"abstract":"<div><div>Understanding the differential responses of various tributaries of the same glacier to climate change under similar climatic conditions in the Karakoram is crucial for unraveling the complexity of glacier dynamics in this region. This study systematically examines the surface elevation, flow velocity, morphological changes, and climate responses for different tributary glaciers of the Musta Glacier, using multi-source remote sensing imagery and meteorological reanalysis data from 1976 to 2023. The findings reveal that the tributaries of Musta Glacier experienced a total of nine surges, with an average duration exceeding ten years. These surges typically began in spring and summer and concluded in summer and autumn. During these events, the glaciers transferred an estimated 1.32 km³ of material downstream, resulting in an average thickening of over 30 m in the receiving area. The analysis of velocities reveals that the acceleration phase of Musta Glacier tributary surges ranges from 1 to 12 years, with an average duration exceeding 6 years, while the deceleration phase consistently lasts less than 4 years. Among the tributaries, the South Chongtar Glacier exhibits the most rapid surge dynamics, with a total surge duration of just 5 years. Additionally, all surging tributaries of Musta Glacier induce notable geomorphic changes during their surge events, including the formation of ring-shaped moraines and terminal advances. Comparative analysis with previous studies reveals that the surge characteristics of most Musta Glacier tributaries resemble those of thermally controlled Svalbard-type surging glaciers. Furthermore, we observed that the surging patterns of Musta Glacier are closely linked to regional climatic variations, characterized by increased precipitation and noticeably cooling prior to surge initiation. On the other hand, we proposed that the asynchronous surging behavior among the tributaries of Musta Glacier is primarily driven by variations in the internal dynamic processes of each glacier in response to climatic changes. In conclusion, our findings provide a quantitative and detailed characterization of the surging processes of Musta Glacier, offering deeper insights into the complexity of glacier surging under changing climatic conditions.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"16 1","pages":"Pages 125-140"},"PeriodicalIF":6.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An integrated assessment of technological pathways and socioeconomic impacts for sustainable power system transition in Indonesia","authors":"Widodo Wahyu Purwanto ,&nbsp;Djoni Hartono ,&nbsp;Akhmad Herman Yunowo ,&nbsp;Heri Hermansyah ,&nbsp;Nadhilah Reyseliani ,&nbsp;Ahmad Syauqi ,&nbsp;Rosa Citra Aprilia","doi":"10.1016/j.accre.2024.11.005","DOIUrl":"10.1016/j.accre.2024.11.005","url":null,"abstract":"<div><div>The energy transition has unique and profound socioeconomic impacts for the developing and coal-producing countries, due to the distinctive country's characteristics. The overall development context and challenges comprising technological pathways, investment, value added, employment and inequality must be considered. For the case of Indonesia, as one of the world's largest coal-producing, the archipelagic nature with various island topography, sociocultural diversity as well as very high population really needs a comprehensive energy transition research considering the above aspects, which is so far still lacking. Therefore, this current study presents an integrated assessment of technological change and socioeconomics impact for power transition pathways in Indonesia using the Integrated MARKAL-EFOM System (TIMES) and their socioeconomics implications using the Miyazawa Input–Output Model (MIOM). Four scenarios were applied namely business-as-usual (BAU), 100% renewable energy (100%RE), Paris Agreement 1.5 °C without coal phase-out (PA1.5), and that of with coal phase-out (PA1.5PO). The results show that by 2060, 100%RE without applying carbon capture and storage (CCS) creates an extreme power flexibility which requires ample energy storage but does not attain net-zero. To meet the 1.5 °C carbon budget, PA1.5 and PA1.5PO require substantial renewable energy deployment, particularly in utility-scale solar PV, energy storage, and low-carbon technologies. These two scenarios exhibit a notable increase in total installed capacity, ranging 3.37–3.83 times higher than the BAU scenario. PA1.5PO, plays an increasing role natural gas as bridge fuel in advanced gas power from 2035 to its peak in 2050. PA scenarios require a higher installed capacity compared to BAU, corresponding to a substantial total investment cost of almost 2.5 times in 2060. The MIOM results show that these scenarios have a stronger impact on household income and employment compared to BAU. However, the impact on value added (VA) only surpasses BAU until 2045, specifically in the PA1.5PO scenario. In the long term, PA1.5PO generates the highest value added and household income, whereas 100%RE scenario has the highest employment and the highest value added in the electricity sector. In contrast, non-energy sectors related to conventional energy supply chains may face challenges. However, PA1.5PO can better mitigate adverse effects. The key findings could provide an insight for policymakers better understand transition pathway and its socioeconomic impacts to ensure a fair transition towards a carbon-neutral economy.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 1107-1120"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143342132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cognitive decline in relation to later-life high temperature exposure in a Chinese nationwide cohort","authors":"Yu-Qian Huang ,&nbsp;Lian-Sheng Zhang ,&nbsp;Ji-Xing Yang ,&nbsp;Fang Wang ,&nbsp;Ya-Qi Wang ,&nbsp;Li-Feng Zhu ,&nbsp;Yuan-Yuan Zhang ,&nbsp;Bo-Ning Deng ,&nbsp;Qian-Qian Xiang ,&nbsp;Yun-Quan Zhang","doi":"10.1016/j.accre.2024.11.002","DOIUrl":"10.1016/j.accre.2024.11.002","url":null,"abstract":"<div><div>Growing evidence has linked extreme temperature with neuropsychiatric disorders under climate warming with frequent extreme heat events over the past decades, while cognitive performance in relation to heat exposure remains largely unstudied, particularly in populations at high vulnerability to climate risks (<em>e.g</em>., China). Based on five survey waves of a nationwide dynamic cohort (2011–2020), we analyzed 47,825 cognitive test records from 14,729 respondents aged 45+ years across 126 Chinese cities. Global cognitive performance and its two dimensions (episodic memory and mental status) was measured using standardized questionnaires. Temperature exposure prior to cognitive tests was assessed using both average temperatures and heat days exceeding predefined temperature thresholds. Linear mixed-effects models were utilized to examine the relationship between high temperature exposure and cognitive function. This study revealed consistent evidence for heat-related declines in global cognitive performance and episodic memory across multiple exposure-window analyses, while robust associations were observed solely during prolonged exposure periods (more than 90 d) for mental status. For each 1-°C rise in annual mean temperature within 1 year prior to investigation, cognitive scores declined by 0.058 (95% CI: −0.079, −0.037) points for global performance, 0.033 (95% CI: −0.048, −0.018) points for episodic memory, and 0.025 (95% CI: −0.038, −0.013) points for mental status, respectively. Similar findings were seen in analyses using heat exposure days defined by multiple temperature percentiles, linking per 10-d increase in heat duration to reduced global cognitive scores ranging from −0.142 (95% CI: −0.214, −0.070) to −0.168 (95% CI: −0.254, −0.082). Despite varied evidence by heat exposure metrics and cognitive dimensions, stratified analyses suggested possibly higher susceptibility among females, less-educated, and urban-dwelling residents to heat-related cognitive impairment. These results provided suggestive evidence for the role of exposure to heat in triggering cognitive impairment in middle-aged and older individuals. This finding may be crucial in developing public health strategies for managing climate change risks of neurobehavioral disorders in a healthy aging society.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 1078-1087"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143342410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Water use in the industrial sector based on the IPAC model under the carbon-neutral transformation path in China","authors":"Yu-Jie Jiao ,&nbsp;Ke-Jun Jiang ,&nbsp;Sha Chen ,&nbsp;Pian-Pian Xiang ,&nbsp;Chen-Min He","doi":"10.1016/j.accre.2024.11.004","DOIUrl":"10.1016/j.accre.2024.11.004","url":null,"abstract":"<div><div>To examine the impact of promoting transformative hydrogen-based technologies on water demand in traditional high-energy and high-water-consuming sectors under the carbon-neutral transition, this study investigates the industrial sector transformation path. It compares the water consumption of current production processes with future hydrogen-based and advanced water-saving technologies. By developing a model, the study analyses the water-saving potential of 54 water-saving and hydrogen-based technologies across three water consumption scenarios and evaluates their impact on industrial water use. This study highlights the pivotal role of water-saving technologies in transforming industrial sectors, particularly in the paper and textile industries, where zero-emission technologies have considerably reduced water demand. Water savings in the paper industry are projected to increase from 24.29 Mt in 2025 to 101.44 Mt in 2050, representing an 8.5% increase. In the chemical fibre sector, additional water savings are expected to reach 106.93 Mt by 2050, with an 11.6% increase in water-saving efficiency. Similarly, the textile dyeing and finishing sector is anticipated to achieve an additional water saving of 26.45 Mt by 2050, corresponding to a 17.5% improvement. The findings indicate that the adoption of hydrogen-based technologies will considerably reduce water consumption in traditionally high-water-consuming industries such as steel, synthetic ammonia, ethylene, and methanol. This reduction becomes particularly evident by 2050 under the baseline pathway and low water consumption scenarios, in which the impact of water-saving technologies becomes less prominent. By 2050, water consumption in the steel, ethylene, synthetic ammonia, and methanol industries is projected to decrease to 985.93, 59.11, 242.4, and 268.29 Mt, respectively. These findings highlight the potential of hydrogen-based technologies in advancing water conservation. By 2050, the chemical industry is projected to reduce water stress by transitioning from traditional water-saving technologies to the integration of automation and hydrogen-based solutions.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 1130-1146"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143342411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal enhancement of targeted cooling thermosyphon array applied to the embankment–bridge transition section of the Qinghai–Tibet Railway in warm permafrost","authors":"Kun Chen ,&nbsp;Guo-Yu Li ,&nbsp;Qi-Hao Yu ,&nbsp;Yan-Hui You ,&nbsp;Ming-Yang Jin ,&nbsp;Jin-Xin Lu ,&nbsp;Yao-Jun Zhao","doi":"10.1016/j.accre.2024.09.003","DOIUrl":"10.1016/j.accre.2024.09.003","url":null,"abstract":"<div><div>Permafrost degradation in the embankment–bridge transition section (EBTS) along the Qinghai–Tibet Railway has led to extensive damage to bridge structures, posing a serious threat to railway safety. With the ongoing global warming, reinforcing the affected EBTS to ensure long-term stability remains a pressing challenge. To address this issue, this study proposes a targeted cooling thermosyphon array (TCTA) approach utilising variable inclination evaporator (VIE) thermosyphons. The effectiveness of the VIE thermosyphon was evaluated through an <em>in-situ</em> test. Meanwhile, a three-dimensional numerical model was employed to analyse the overall cooling effect, long-term performance and thermal enhancement provided by the TCTA approach. The findings indicated that the VIE thermosyphon exhibited excellent cooling performance and maintained uniform wall temperature, with the lowest wall temperature reaching −15 °C. Within one year of implementation, a cold core of −2 °C formed at the centre of the foundation, and the permafrost table was uplifted by approximately 3 m, showcasing its potential to rapidly enhance the thermal stability of in-service EBTS in permafrost. With prolonged operation, the cold accumulative effect of this approach gradually becomes apparent, and the range of the low-temperature cores expands. This method effectively reinforces the thermal stability of in-service EBTS and is well-suited for future railway construction in warm permafrost amidst the challenges of climate change.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 1160-1176"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143341962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}