International Journal of Biometeorology最新文献

{"title":"The effect of Temperature-Humidity Index (THI) on the number of stillbirths and stress-to-comfort ratio of sows at different parities in a tropical environment","authors":"Amanda Aparecida Brito,&nbsp;Natascha Almeida Marques da Silva,&nbsp;Edmilson Rodrigues Pinto,&nbsp;Ana Luísa Neves Alvarenga Dias,&nbsp;Mara Regina Bueno de Mattos Nascimento","doi":"10.1007/s00484-026-03240-2","DOIUrl":"10.1007/s00484-026-03240-2","url":null,"abstract":"<div><p>It is well known that heat stress negatively affects the productivity, reproduction, and welfare of pigs. However, the role of thermal environments and stress-to-comfort (S/C) ratios in predicting stillbirths has not been studied in tropical regions. Therefore, this study aimed to model and estimate the impact of the maximum Temperature-Humidity Index (THImax) on the number of stillborn piglets and to calculate the S/C ratio. A total of 36,880 farrowings from sows on a commercial farm in Brazil were analyzed. The females were grouped by parity into gilts, primiparous, and multiparous with 2–5 and ≥ 6 farrowings. On the day of farrowing, THImax was classified as follows: ≤74 (thermal comfort), 75–78 (mild stress), 79–82 (moderate stress), and &gt; 82 (severe stress). The effect of THImax on the number of stillbirths per day was estimated using quasi-Poisson regression. The models were adjusted using the quasi-Akaike information criterion (QAIC) and Pearson’s residual variance to select the most appropriate model for the data. Also to analyze the mean number of stillbirths per farrowing by THImax category using one-way ANOVA. Then, the S/C ratio was calculated by THImax category. Of the 1,826 total days, 14.95% were classified as comfortable. According to the model, multiparous sows (≥ 2 farrowings) had more stillbirths per day under THImax &gt; 82, while in primiparous sows, ITUmax &lt; 74 is associated with the highest number of stillbirths per day, with a reduction as ITUmax approaches 74. With the severe S/C ratio, an increase in stillbirths per litter was observed in gilts (20%), primiparous (7%), 2–5 parities (14%), and ≥ 6 parities (19%). The quasi-Poisson model indicated an increase in daily stillbirths in multiparous sows (≥ 2 farrowings) under THImax &gt; 82. The severe S/C ratio was greater than 1 in all parity groups, indicating an increase in the average number of stillbirths per farrowing, mainly under THImax &gt; 82.</p></div>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00484-026-03240-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Methodological and interpretative limitations of using dew point temperature in aerobiological studies","authors":"Beata Bosiacka,&nbsp;Katarzyna Piotrowicz,&nbsp;Agnieszka Grinn-Gofroń","doi":"10.1007/s00484-026-03336-9","DOIUrl":"10.1007/s00484-026-03336-9","url":null,"abstract":"<div><p>Among meteorological variables taken into account in aerobiological studies, air humidity presents a particular methodological challenge, as the atmospheric water vapour content can be described using several interrelated parameters, including relative humidity, absolute and specific humidity, vapour pressure, vapour pressure deficit, and dew point temperature (TD). The TD is the temperature at which air becomes saturated with water vapour at a given pressure. Water vapour condensation may impact, <i>inter alia</i>, the release of fungal spores or pollen grains, which may occur when the air temperature is actually equal to the TD at a given moment. However, as water vapour condensation occurs only in short time intervals during a 24-h period, using the daily average TD in aerobiological analyses is not appropriate from the meteorological standpoint. The manuscript is a methodological commentary rather than an empirical study. We emphasize that it is not the TD itself that is at issue, but its temporal aggregation (daily arithmetic averages) and interpretation in multivariate ecological analyses. We recommend that, in aerobiological studies, TD values be used with caution and preferably be complemented with, or replaced by, alternative humidity-related metrics, particularly when multicollinearity is present. Such an approach may improve the robustness and interpretability of results, as well as help to remove statistical artifact effects from explaining direct biological mechanisms.</p></div>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00484-026-03336-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Artificial intelligence models for dengue outbreak prediction in Ho Chi Minh City, Vietnam under climate change","authors":"Le Thanh Trang,&nbsp;Pham Thi Tuyet Huyen,&nbsp;Vo Thi Kim Kieu,&nbsp;Nguyen Thi Van Anh,&nbsp;Le Hong Nga,&nbsp;Hoang Ha Anh,&nbsp;Phan Thi Ha,&nbsp;Nguyen Kim Loi","doi":"10.1007/s00484-026-03333-y","DOIUrl":"10.1007/s00484-026-03333-y","url":null,"abstract":"<div><p>Dengue fever (DF) remains one of the most significant mosquito-borne diseases in tropical and subtropical regions, particularly in Ho Chi Minh City (HCMC), Vietnam. This study evaluates the performance of Artificial Intelligence (AI) models, including Machine Learning and Deep Learning approaches to forecast weekly district-level DF cases and to identify the optimal predictive model. DF notifications and meteorological data (temperature, humidity, rainfall) from 24 districts in HCMC (2015–2022) were standardized to epidemiological weeks and spatially interpolated using Inverse Distance Weighting (IDW). Variable-specific lags were estimated empirically by Cross-Correlation Analysis (CCA) over 0–21 weeks, and multicollinearity was screened with the Pearson Correlation Coefficient (PCC) and the Variance Inflation Factor (VIF) and resolved with Principal Component Analysis (PCA). Five forecasting models were compared: Multiple Linear Regression (MLR), Support Vector Regression (SVR), Random Forest (RF), Autoregressive Integrated Moving Average (ARIMA), and Long Short-Term Memory (LSTM). Shapley Additive Explanations (SHAP) were applied to assess feature contributions. Strongest lag impacts on DF were found for rainfall (8 weeks), maximum humidity (8 weeks), minimum humidity (8 weeks), minimum temperature (17 weeks), maximum temperature (0 weeks), and temperature amplitude (5 weeks), with correlation |r| ranging from 0.18 to 0.37.</p><p>Among all models, LSTM achieved the best performance with the lowest errors and highest stability across 2021–2022 test sets. Incorporating lagged meteorological and epidemiological features notably improved predictive accuracy, particularly for MLR. Overall, the LSTM model shows strong potential for dengue forecasting in HCMC and supports the development of AI-based early warning systems for proactive public health management.</p></div>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of hatchery microclimate, breeder age and storage time on egg water loss in a tropical climate","authors":"Aérica Cirqueira Nazareno,&nbsp;Robson Mateus Freitas Silveira,&nbsp;Afrânio Márcio Corrêa Vieira,&nbsp;Iran José Oliveira da Silva","doi":"10.1007/s00484-026-03332-z","DOIUrl":"10.1007/s00484-026-03332-z","url":null,"abstract":"<div><p>This study aimed to evaluate the effects of incubator microclimate, broiler breeder age, and fertile egg storage duration on egg water loss in a commercial hatchery within a tropical climate. Data were collected from the environments (air-conditioned egg room and incubator) in order to perform microclimatic assessments, in which temperature (T; °C), relative humidity (RH; %) and specific enthalpy (h; kJ.kg of dry air^− 1) were recorded at 10-minute intervals. Twelve Logen microprocessors were used in the egg room and one microprocessor was assigned for every three treatments in the incubators. Water loss in fertile eggs was verified using eggs from three different ages of Cobb Fast breeders (young = 29–30 weeks, intermediate = 42–43 weeks, and old = 52–53 weeks), from the same flock and analyzed over time. Twelve storage time ranges were also analyzed (87–103, 174–184, 196–208, 244–255, 63–77, 150–160, 172–184, 220–231, 40–57, 128–137, 150–161 and 198–208 h). In each treatment (combining breeder age and storage time), 35 individual eggs were weighed, totaling 1,440 eggs. Weighing was conducted upon entry and exit from both the egg storage room and the incubator using a semi-analytical balance. The experimental design used was hierarchical, in which the storage times are nested within the ages of the broiler breeders, with 35 replicates. T, RH, and h in the egg room and incubator showed higher averages during summer (<i>p</i> &lt; 0.0001), and remained outside the recommended thermal and enthalpy ranges across all seasons under tropical conditions. The highest water loss of fertile eggs in the egg room and incubator was observed in eggs from older breeders (<i>p</i> &lt; 0.0001) and under longer storage periods (<i>p</i> &lt; 0.0001), particularly at 244–255, 220–231, and 198–208 h. Under tropical conditions, the T and h of the egg room and incubator are not within the ideal ranges in the studied seasons. Eggs from old breeders and those with longer storage times were those which presented the greatest water loss values. These findings highlight the need for improved environmental control in hatchery facilities under tropical conditions, particularly through tighter regulation of temperature and humidity and by minimizing egg storage duration, especially for eggs from older breeders, in order to reduce excessive water loss and optimize incubation performance.</p></div>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13638711/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Acute effects of nitrogen dioxide pollution on outpatient visits for mental and behavioral disorders: a time-series study of over 10 years in Xinxiang, China","authors":"Houyu Zhuang,&nbsp;Ziyang Ji,&nbsp;Changhong Wang,&nbsp;Chuansheng Wang,&nbsp;Weidong Wu,&nbsp;Jie Song,&nbsp;Wenjie Ren","doi":"10.1007/s00484-026-03334-x","DOIUrl":"10.1007/s00484-026-03334-x","url":null,"abstract":"<div><p>Mental and behavioral disorders (MBDs) represent a significant global health challenge. Nitrogen dioxide (NO₂), a prevalent urban air pollutant with potential neurotoxicity, has been studied for its acute effects on MBDs. However, existing evidence remains limited and inconsistent. A time-series study of over 10 years was conducted in Xinxiang, China, to investigate the acute effects of NO₂ on outpatient visits for MBDs from 1 January 2015 to 30 June 2025. The analysis comprised 2,409,583 valid records. A generalized additive model (GAM) with a quasi-Poisson distribution was utilized, with adjustments for long-term temporal trends, meteorological variables, weekday effects, and public holidays. For every 10 µg/m³ increase in NO₂ concentrations at lag0, outpatient visits for MBDs increased by 2.54% (95% CI: 2.04%, 3.04%). This effect was stronger during the cool season. The exposure-response (E-R) curve indicated a potential non-linear relationship, but the estimates at high concentrations are uncertain. Results from sensitivity analyses indicated no substantial changes in effect estimates. Our findings demonstrate that short-term NO₂ exposure was linked to elevated outpatient visits for MBDs, particularly in the cool season, thereby supporting the need for air pollution control and mental health protection.</p></div>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association of Foehn winds with physiological parameters in a cohort of middle-aged adults","authors":"Selina Hanselmann,&nbsp;Kirsten Grossmann,&nbsp;Ornella Céline Weideli,&nbsp;Vincent Sebastian Braunack-Mayer,&nbsp;Kenneth Vogt,&nbsp;Laura Velez Colorado,&nbsp;Martina Rothenbühler,&nbsp;Oliver Ullrich,&nbsp;Harald Renz,&nbsp;David Conen,&nbsp;Lorenz Risch,&nbsp;Martin Risch","doi":"10.1007/s00484-026-03327-w","DOIUrl":"10.1007/s00484-026-03327-w","url":null,"abstract":"<div><h3>Background</h3><p>Foehn winds, warm and dry downslope winds common in alpine regions, have long been suspected to affect human health, but objective evidence remains limited. Wearable devices now allow physiological responses to such conditions to be captured. This study investigates the association between Foehn winds and changes in physiological parameters.</p><h3>Methods</h3><p>Healthy adults in Liechtenstein wore a medical sensory wearable device during sleep over an 11-month period. Nightly physiological parameters were related to Foehn exposure in linear mixed-effects models.</p><h3>Results</h3><p>714 participants (59.7% women; mean age 44.0 years) were included. Foehn was associated with changes in heart rate (HR) (+ 0.25 bpm; 95% CI: 0.17, 0.33), perfusion index (PI) (+ 0.78%; 95% CI: 0.22, 1.33), and heart rate variability (HRV) (–0.29%; 95% CI: –0.55, –0.04), while respiratory rate, wrist skin temperature, and sleep duration remained unchanged. Restricting exposure to nocturnal Foehn strengthened the associations with HR (+ 0.41 bpm; 95% CI: 0.31, 0.50) and HRV (–0.35%; 95% CI: –0.66, –0.05), whereas both were attenuated after additional adjustment for air temperature, humidity and barometric pressure. Overall, 40.8% of participants reported impaired well-being during Foehn episodes. These individuals showed a 9.92% lower PI irrespective of Foehn and less pronounced Foehn-related changes in HR (+ 0.15 vs. + 0.32 bpm) and HRV (+ 0.04% vs. –0.53%).</p><h3>Conclusions</h3><p>Our findings provide evidence that Foehn winds are linked to objectively measurable changes in physiological parameters, which appear attributable to the accompanying meteorological conditions. Individuals reporting impaired well-being during Foehn showed a lower baseline perfusion index but weaker physiological responses.</p></div>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149073030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Air temperature versus thermal indices (UTCI and PET) across Türkiye: reanalysis evidence that thermal comfort and heat stress cannot be inferred from air temperature alone","authors":"Doğukan Doğu Yavaşlı,&nbsp;Andreas Matzarakis","doi":"10.1007/s00484-026-03329-8","DOIUrl":"10.1007/s00484-026-03329-8","url":null,"abstract":"<div><p>Air temperature (Ta) remains the most widely communicated measure of heat, yet human heat stress also depends on air humidity, wind conditions and radiation fluxes. We quantified the difference between Ta and two human-biometeorological indices, the Universal Thermal Climate Index (UTCI) and the Physiologically Equivalent Temperature (PET), across Türkiye using hourly May–September reanalysis data for 1950–2024. ERA5-Land supplied Ta, humidity, wind and pressure at ~ 0.1° resolution, while mean radiant temperature (MRT) was taken from the Copernicus thermal-comfort dataset derived from ERA5 (ERA5-HEAT) and interpolated to the ERA5-Land grid. PET was computed with a steady-state energy-balance model. We analysed long-term mean ΔT = index - Ta, daytime-only ΔT, representative diurnal cycles, regional distributions, non-parametric trends and meteorological drivers. The national 24-h long-term mean ΔTUTCI was close to zero (+ 0.2 °C), but daytime conditions were much warmer than Ta: over 09:00–15:00 local time, mean ΔTUTCI was + 4.6 °C nationally and reached + 9.5 °C locally. PET had a lower 24-h seasonal mean than Ta (-2.4 °C nationally), yet daytime ΔTPET was also positive (+ 3.1 °C nationally). MRT was the dominant correlate of both ΔT indices in every region (Spearman <i>r</i> ≈ 0.80–0.94). Satellite-era Sen-slope estimates for 1979–2024 indicated weak but spatially coherent ΔT increases, especially for PET (+ 0.07 °C decade⁻¹). FDR-significant fractions were 24.2% for UTCI and 73.7% for PET with the standard Mann–Kendall test and 31.6% and 75.3%, respectively, after the Hamed–Rao autocorrelation correction. Overall, Ta gives an incomplete and time-dependent picture of outdoor thermal stress in Türkiye, supporting heat-warning and climate-services approaches based on physiologically meaningful indices.</p></div>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149035311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Elevation-dependent classification of outdoor thermal stress in a tropical Andean country: a case study of Colombia","authors":"Cristian Mejía-Parada,&nbsp;Viviana Mora-Ruiz,&nbsp;Luis Otero-Meneses,&nbsp;Harvey Mieles,&nbsp;Jonathan Soto‑Paz,&nbsp;Brayan A. Parra‑Orobio","doi":"10.1007/s00484-026-03326-x","DOIUrl":"10.1007/s00484-026-03326-x","url":null,"abstract":"<div><p>Outdoor thermal comfort in tropical mountain countries is shaped by air temperature, humidity, wind, solar radiation and topography, with elevation strongly controlling thermal stress (TS). This study evaluates how elevation modulates outdoor TS in Colombia and proposes an elevation-based thermal stress level (TSL) classification. Typical Meteorological Year (TMY) datasets from the National Solar Radiation Database (NSRDB) were used to compute four thermal indices: Universal Thermal Climate Index (UTCI), Effective Temperature (ETv), Thermo-Hygrometric Index (THI) and the national heat index (IDEAM-HI) for 69,874 locations. For each index, linear and second-degree polynomial regressions between elevation and the annual maximum, mean and minimum values were fitted and assessed using RMSE and R². Polynomial models generally outperformed linear models, particularly for UTCI, explaining up to 96% of the variance in the annual maximum values. The resulting functions were used to derive elevation ranges for different TSL and to produce a TS classification and map. Large lowland areas are predominantly classified within warm and very hot stress conditions, whereas thermally comfortable conditions are mostly restricted to intermediate elevations between 1,080 and 2,050 m.a.s.l. In addition, an exploratory hourly UTCI assessment was performed for four cities using TMY data for representative urban configurations. The urban results qualitatively confirm the elevation-based TS classes and show how diurnal cycles and intra-urban differences modulate TS within each elevation band. The proposed framework provides a climatological, screening-level multi-scale reference for typical outdoor TS in Colombia, enabling baseline spatial prioritization for heat–health risk assessment, climate-resilient planning and comparative assessment planning in tropical Andean regions.</p></div>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00484-026-03326-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149029354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Critical engagement on the selection and reporting of biometeorological indices","authors":"Jennifer M. Fitchett","doi":"10.1007/s00484-026-03328-9","DOIUrl":"10.1007/s00484-026-03328-9","url":null,"abstract":"<p>Over the past four decades, a plethora of biometeorological indices has emerged. These are enabling the quantification and spatiotemporal comparison of climatic suitabilities and risks for a wide range of activities across indoor and outdoor settings. The relative mathematical simplicity of many of these indices, and the increasing availability of high-quality gridded data, mean that human biometeorological conditions can be computed rapidly and at scale. This is reflected in the literature, with considerable increases in quantitative biometeorological studies over the same period. However, with this computational ease comes a risk of the inadvertent output of spurious results; if the indices have not been carefully selected for their appropriate use for a given location, set of activities, and inherent assumptions. Where these biometeorological index outputs are used in informing policy, which ideally they should be, this risk of misinformation feeding maladaptation needs to be carefully mitigated through a thorough assessment of index applicability, suitability and validity. This paper sets out a conceptual selection framework that is guided by these three variables, following application of this approach in a range of settings, advocating for careful pre-assessment evaluation of indices in their selection.</p><p>Not applicable.</p>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00484-026-03328-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Evaluating thermal demand differences among passenger groups in a high-speed railway station waiting hall during summer","authors":"Qin Li,&nbsp;Yan Wang,&nbsp;Jiajing Wang,&nbsp;Hongbin Zhao,&nbsp;Lixin Sun,&nbsp;Hongguo Ren","doi":"10.1007/s00484-026-03325-y","DOIUrl":"10.1007/s00484-026-03325-y","url":null,"abstract":"<div><p>China has achieved remarkable outcomes in high-speed rail construction; however, certain problems remain. High-speed railway station waiting halls are characterized by their large spans and dense passenger flows, leading to significant variations in the thermal environment and inadequate fulfillment of passengers’ diverse comfort requirements. To address these issues, a field investigation was conducted at a typical high‑speed railway station in China’s cold region, and a total of 207 valid questionnaires were collected. The analysis revealed that various operation and maintenance modes influence the waiting hall’s thermal environment. Furthermore, the study identified thermal sensitivity differences among diverse passenger groups, with their neutral temperatures varying considerably across BMI and age groups (ranging from 22.50–27.90 ℃). It also calculated each group’s recommended thermal neutral temperature and comfortable temperature range, and established a multi-factor thermal sensation prediction model that demonstrates strong fitting performance, achieving R² values of 0.8690 and 0.9430 for different gender groups. This research offers theoretical support for precise environmental regulation in high-speed railway station waiting halls and promotes the sustainable development of rail transit stations.</p></div>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":"70 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}