Advances in Climate Change Research最新文献

{"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}

{"title":"Assessing the impact of artificial geotextile covers on glacier mass balance and energy fluxes","authors":"Yi-Da Xie ,&nbsp;Fei-Teng Wang ,&nbsp;Hui Zhang ,&nbsp;Wen-Tao Du ,&nbsp;Wei-Bo Zhao","doi":"10.1016/j.accre.2024.10.007","DOIUrl":"10.1016/j.accre.2024.10.007","url":null,"abstract":"<div><div>As global warming accelerates, leading to the retreat of glaciers, the effectiveness of artificial coverings, in particular geotextiles, in reducing glacier ablation has emerged as a topic of increasing concern. Nevertheless, a critical gap in knowledge persists regarding the specific physical processes involved in the mitigation provided by these coverings. This study explores the underlying mechanisms that govern the interaction through field observations and COSIPY model simulations at Bailanghe Glacier No. 21 in the Qilian Mountains from 26 June to September 17, 2023. It compares covered and uncovered areas to evaluate differences in mass and energy balance fluxes. It was discovered that geotextiles could decrease ice melt by up to 1000 mm w.e. in comparison to the surface of glaciers without cover, primarily because of a 23% increase in albedo compared to ice, leading to a decrease in net short-wave radiation and available melt energy. The effect of covering the entire glacier with a geotextile, which has varying albedo properties, was also simulated. It was found that, with every 5% increase in the albedo of the geotextile, ablation was reduced by 10%–25%, resulting in a decrease in ice volume loss of approximately 2.5 × 10⁵ m³. While artificially covering glaciers can reduce ablation rates, it faces challenges such as high costs, environmental risks, and issues with replicability. Ultimately, this study aims to analyze the feasibility of glacier coverage from a mechanistic perspective for glacier management amidst ongoing climate change.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 1147-1159"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143342412","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":"Detection, attribution and projection of changes in the extreme temperature range in the Northern Hemisphere","authors":"Xiao-Fan Feng ,&nbsp;Cheng Qian","doi":"10.1016/j.accre.2024.10.006","DOIUrl":"10.1016/j.accre.2024.10.006","url":null,"abstract":"<div><div>The extreme temperature range (ETR) is the span between the highest and lowest temperature of a given year, and is a manifestation of extreme temperature variability. It is regarded as having significant environmental and societal impacts, but the influences of human activities on changes in the ETR remain unclear. Here we performed a detection and attribution analysis of the changes in the ETR over the land areas of the Northern Hemisphere (NH) for the period 1960–2018, based on the optimal fingerprinting approach. We found that anthropogenic forcing could be detected and separated from natural forcing, and greenhouse gas forcing could be detected and separated from anthropogenic aerosol forcing, in the spatiotemporal pattern of the NH and in the regional average of the high latitudes. It is estimated that anthropogenic forcing (greenhouse gas emissions) contributed to 129% (152%) of the significant decreasing trend in the NH-averaged ETR. Moreover, compared to the average of 1999–2018, the NH (North America)-averaged ETR was projected to further significantly decrease by 6.7 °C (14.0 °C) in 2081–2100 under the SSP5-8.5 scenario, based on attribution-constrained projection, the magnitude of which was larger than in the models’ raw outputs. In contrast, the ETR was projected to increase significantly in the Mediterranean and adjacent regions under the SSP5-8.5 scenario, and in Central Europe, West Africa, Central Asia, South Asia, and parts of China under the SSP1-1.9 scenario. These results have important implications for understanding and predicting the effects of human activities on changes in extreme temperature variability and for adaptation to these changes in the future.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 989-1002"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143342372","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":"Impact of ambient temperatures on Alzheimer's disease and other dementia mortality among elderly patients aged 60 years and older in China","authors":"Rui Zhang ,&nbsp;Lu Sun ,&nbsp;Ai-Nan Jia ,&nbsp;Si-Yuan Wu ,&nbsp;Yu Wang ,&nbsp;Song-Wang Wang ,&nbsp;Qing Guo ,&nbsp;Yu-Jie Meng ,&nbsp;Juan Liang ,&nbsp;Wan Huang ,&nbsp;Yong-Hong Li ,&nbsp;Jing Wu","doi":"10.1016/j.accre.2024.12.002","DOIUrl":"10.1016/j.accre.2024.12.002","url":null,"abstract":"<div><div>China has a large number of patients with Alzheimer's disease (AD) and types of other dementia, which places a heavy burden on the public health and medical systems. As global climate change results in more frequent extreme weather events, and there is a current lack of understanding regarding the impact of non-optimal temperatures, especially cold, on AD and other dementia mortality, the study aimed to identify patterns of temperature sensitivity in order to inform targeted public health strategies. The records of 399,214 decedents aged 60 years and older who died due to AD or other dementias from 2013 to 2020 were obtained from the China Cause of Death Reporting System. Using an individual-level time-stratified case-crossover study design, the relationships between ambient temperatures and AD and other dementia mortality were quantified using conditional logistic regression combined with the distributed lag nonlinear model. In addition, the attributable fractions (AFs) of mortality due to non-optimal ambient temperatures were calculated. The study found that both low and high non-optimal temperatures were associated with an increased risk of death from AD and other dementias, with an inverted J-shaped exposure–response curve. Moreover, the AFs of mortality due to full, low and high non-optimal temperatures with lag0–14 were 5.81% (95% empirical confidence interval [eCI]: 4.89%, 6.72%), 5.24% (95% eCI: 4.15%, 6.27%) and 0.58% (95% eCI: 0.27%, 0.90%), respectively. Importantly, AFs varied across administrative regions, influenced by factors such as climate, geography, sociodemographic characteristics and socioeconomic factors. These findings can inform clinical and public health practices to reduce the mortality burden due to non-optimal temperatures on elderly populations with AD and other dementias.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 1088-1095"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143342404","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":"Decadal variations in near-surface wind speed across the Northern Hemisphere on a centennial timescale and their possible causes","authors":"Lin-Wei Li ,&nbsp;Jin-Lin Zha ,&nbsp;Ting Chuan ,&nbsp;Jian Wu ,&nbsp;De-Ming Zhao ,&nbsp;Wen-Xuan Fan ,&nbsp;Yan-Jun Lyu ,&nbsp;Hui-Ping Jiang","doi":"10.1016/j.accre.2024.10.002","DOIUrl":"10.1016/j.accre.2024.10.002","url":null,"abstract":"<div><div>The reduction in near-surface wind speed (NSWS), followed by its recent recovery, could be a feature of decadal variations. However, existing studies mainly analyse the characteristics and causes of NSWS changes on regional scales and over short periods. The decadal variations and underlying causes of global NSWS changes over long timescales remain underexplored. In this study, we investigated the characteristics of NSWS changes in the Northern Hemisphere (NH) on a centennial scale (1900–2010) and identify the potential causes of decadal variations by using an information flow technique. The results indicate that NSWS in the NH experienced a remarkable decadal variation, increasing during 1900–1945 and 1970–1980 and decreasing during 1945–1970 and 1980–2010. Furthermore, regional differences in the distribution features and decadal variations of NSWS were observed. Asia and North America showed the highest data overlap compared to other regions, reaching 59.4%. The longest period of decadal variation in NSWS was found in North America (14 years), followed by Europe (11 years), with Asia showing the smallest period (10 years). When determining the effects of large-scale ocean–atmosphere circulation fields or internal climate models on NSWS changes, prioritising causality between the two variables and the study period is essential, rather than relying solely on simple correlation analysis. According to the information flow technique, the decadal variations in NSWS over North America during 1950–2010 were linked with the Western Hemisphere Warm Pool, whereas the North Atlantic Oscillation influenced those in Europe. The Tropical Northern Atlantic was the driver over Asia. This study offers a scientific foundation for understanding NSWS characteristics on a centennial timescale and the primary causes of decadal variations in NSWS across the NH.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 1003-1012"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143342370","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":"Representative CO2 emissions pathways for China's provinces toward carbon neutrality under the Paris Agreement's 2 °C target","authors":"Han-Tang Peng ,&nbsp;Da Zhang ,&nbsp;Jun-Ting Zhong ,&nbsp;Li-Feng Guo ,&nbsp;Si-Yue Guo ,&nbsp;Jun-Ling Huang ,&nbsp;De-Ying Wang ,&nbsp;Chang-Hong Miao ,&nbsp;Xi-Liang Zhang ,&nbsp;Xiao-Ye Zhang","doi":"10.1016/j.accre.2024.10.005","DOIUrl":"10.1016/j.accre.2024.10.005","url":null,"abstract":"<div><div>China has committed to achieving carbon neutrality by 2060. It is essential to develop representative CO₂ emissions pathways at the provincial level that align with the national target to facilitate effective policy implementation and scientific research. To address inconsistencies between provincial aggregate emissions and national estimates, this study compares the 2021 CO₂ emissions estimates of China's provinces from the bottom‒up emissions factor method and the top‒down atmospheric CO₂ concentration inversion method. We find that these methods yield comparable results for the emissions from energy combustion and industrial processes at the provincial level. Based on a review of existing research on CO₂ pathways for China's provinces, we propose a set of representative pathways for China's provinces. These pathways align with past practices of allocating national emissions intensity reduction targets to provinces and are consistent with the national Tsinghua‒CMA pathway. The proposed pathways require provinces to sequentially peak their emissions by 2030, followed by rapid emissions reduction. Compared to a reference scenario without the carbon neutrality target, these pathways would incur an estimated cumulative GDP loss of about 1% between 2020 and 2060. However, there are notable regional variations, with some regions in the northwest potentially experiencing higher economic growth due to the availability of high-quality low-carbon resources. We recommend that China enhance provincial-level CO₂ emissions accounting by cross-validating bottom‒up and top‒down methods. Additionally, careful consideration should be given to aligning provincial targets with national and global commitments when updating pathways toward carbon neutrality.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 1096-1106"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143342133","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":"Exploring grid sensitivity in an ice sheet model: A case study of the Amery Ice Shelf","authors":"Qian-Xi Wang ,&nbsp;Teng Li ,&nbsp;Xiao Cheng ,&nbsp;Chen Zhao ,&nbsp;Lei Zheng ,&nbsp;Qi Liang","doi":"10.1016/j.accre.2024.12.001","DOIUrl":"10.1016/j.accre.2024.12.001","url":null,"abstract":"<div><div>The dynamics of the Antarctic ice sheet are key factors affecting global climate change. To project future sea level changes, ice sheet models are developed based on a discrete grid system, which profoundly impacts the accuracy of numerical simulations. To comprehensively explore the sensitivity of ice modeling performance to grid resolution, this study focused on the Amery Ice Shelf (AmIS), the largest glacial flow system in east Antarctica. Using ten grid resolutions (nine sets of structured grids ranging from 2 to 30 km and one set of adaptive unstructured grid from 1 to 20 km), we conducted a series of inversion experiments and diagnostic perturbation tests. Our findings reveal a high sensitivity of both inversion parameters, the rate factor <span><math><mrow><mi>A</mi></mrow></math></span> and basal slipperiness <span><math><mrow><mi>C</mi></mrow></math></span>, as well as Grounding Line Flux (GLF) and Volume Above Floatation (VAF), to the grid resolution. We observed that for the AmIS, grid resolutions coarser than 10 km in our model introduce considerable noise and reduce the ability to capture realistic dynamic processes. Additionally, we found that the inversion parameters were transferable between grid systems of different resolutions, and the AmIS exhibited a consistent response to idealized collapse scenarios across these grid systems, particularly for grids with a resolution of 10 km or finer. This study extends the previous ice sheet model intercomparison experiments from synthetic topography to realistic geometry and provides insights for future ice modeling studies on grid systems configurations.</div></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"15 6","pages":"Pages 1013-1026"},"PeriodicalIF":6.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143342367","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}