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International Journal of Biometeorology

Leili Tapak, Zohreh Maryanaji, Omid Hamidi, Hamed Abbasi, Roya Najafi-Vosough
The main objective of this study was to evaluate the role of climatic parameters and phenomena including the monthly number of dusty/rainy/snowy/foggy days, cloudiness (Okta), horizontal visibility, and barometric pressure (millibar) on major depressive disorder, bipolar, schizophrenia, and schizoaffective admissions. The monthly data related to the number of admissions in Farshchian hospital and climatic parameters from March 2005 to March 2017 were extracted. Random forest regression and dynamic negative binomial regression were used to examine the relationship between variables; the statistical significance was considered as 0...
October 4, 2018: International Journal of Biometeorology
Fernanda Rodrigues Diniz, Clara Miho Narukawa Iwabe, Marina Piacenti-Silva
Brazil is an extensive country with five administrative regions that have different climates, mainly due to their geographic locations. The El Niño-Southern Oscillation influences the regime of temperature and precipitation of the Brazilian regions, which can directly affect the thermal discomfort of the population. The objective of this study was to evaluate the human thermal discomfort index (HDI) in the five regions of Brazil for El Niño, La Niña, and neutral years from 1979 to 2017, as well as the influence of the degree of intensity of the Pacific Ocean anomaly in the thermal conditions of the Brazilian regions...
October 3, 2018: International Journal of Biometeorology
Andrew Grundstein, Earl Cooper
Exertional heat illnesses affect thousands of athletes each year and are a leading cause of death in sports. The wet bulb globe temperature (WBGT) is widely used as a heat stress metric in athletics for adjusting activities. The WBGT can be measured on-site with portable sensors, but instrument cost may provide a barrier for usage. Modeling WBGT from weather station data, then, presents an affordable option. Our study compares two WBGT models of varying levels of sophistication: the Australian Bureau of Meteorology (ABM) model which uses only temperature and humidity as inputs and a physically based model by Liljegren that incorporates temperature, humidity, wind speed, and solar radiation in determining WBGT outputs...
October 3, 2018: International Journal of Biometeorology
Michał Ciach, Łukasz Pęksa
Global warming is considered as a phenomenon having a negative effect on animals living in cold climate. However, herbivorous species inhabiting cold zones may potentially benefit from increase of temperature as this influence duration of vegetation period and increase food resources. In this study, we analyze the impact of climate factors on the long-term dynamics of an isolated and unhunted population of the Tatra chamois Rupicapra rupicapra tatrica. The population growth rate, based on autumnal chamois counting carried out from 1957 to 2016, were correlated with a set of climatic variables...
October 2, 2018: International Journal of Biometeorology
Franco Cozzi, Luca Ciprian, Maria Carrara, Paola Galozzi, Elisabetta Zanatta, Anna Scanu, Paolo Sfriso, Leonardo Punzi
Since ancient time, thermal baths and mudpacks have been used as treatments for rheumatic diseases and other musculoskeletal complaints. Despite basic researches suggest an anti-inflammatory effect of spa therapy, there is no consensus about the benefits of balneotherapy in patients with chronic inflammatory rheumatic diseases. The aim of this review is to summarize the currently available information on clinical effects of balneotherapy in these diseases. We did a literature search for articles considering the randomized controlled trials (RCTs) published until today...
October 1, 2018: International Journal of Biometeorology
Jennifer Fitchett, Gijsbert Hoogendoorn
There is consensus within tourism research that tourists are sensitive to weather. The climate of a destination is believed to influence the selection of a destination, the timing of the visit and the enjoyment of the destination. The climatic suitability of locations for tourism is often evaluated using indices of climatic data, including the Tourism Climatic Index and the Climate Index for Tourism. The output of these indices is a measure of suitability based on the climatic conditions of the destination alone...
September 29, 2018: International Journal of Biometeorology
Su-Jong Jeong, Hoonyoung Park, Chang-Hoi Ho, Jinwon Kim
Urbanization exerts anthropogenic forcing that affects regional climate and ecosystems. With increasing levels of urbanization associated with urban population growth in the near future, understanding of the impact of urbanization on terrestrial ecosystems is important for predicting future environmental changes. This study evaluates the impact of urbanization on spring and autumn phenology by addressing the relationship between population density and phenology at nine stations in the Seoul Capital Area (SCA), South Korea during 1991-2010...
September 29, 2018: International Journal of Biometeorology
Shin Nagai, Kyoko Ikeda, Hideki Kobayashi
The year-to-year variability of the blooming phenology of cherry trees is important as a proxy climate indicator and strongly affects cultural ecosystem services. Observation of blooming phenology at multiple points requires a simple and flexible approach. We examined changes in the canopy gap fraction extracted from binarized upward images taken periodically beneath a Cerasus × yedoensis 'Somei-yoshino' tree. The gap fraction decreased rapidly after the start of bloom, reached a minimum value at full bloom, and began to increase again, but then decreased rapidly during leaf flush...
September 26, 2018: International Journal of Biometeorology
Seung-Wook Lee, Kyoungmi Lee, Byunghwan Lim
This study assessed the potential impact of heat stress on labor productivity in South Korea; as such, stress is expected to increase due to climate change. To quantify the future loss of labor productivity, we used the relationship between the wet-bulb globe temperature and work-rest cycles with representative concentration pathways (RCPs) 4.5 and 8.5 as the climate change scenarios. If only climate factors are considered, then future labor productivity is expected to decline in most regions from the middle of the twenty-first century onwards (2041-2070)...
September 22, 2018: International Journal of Biometeorology
U Macías-Cruz, A Correa-Calderón, M Mellado, C A Meza-Herrera, C F Aréchiga, Leonel Avendaño-Reyes
Forty Dorper × Pelibuey sheep females were used to evaluate the effects of physiological state on physiological variables and serum concentrations of metabolites, thyroid hormones, and electrolytes under outdoor heat stress conditions. Females were selected as follows (n = 10 per group): weaning ewe lambs (WEL; 3 months old), replacement nulliparous ewes (RNE; 8 months old), non-pregnant and non-lactating multiparous ewes (NME; 3-4 years old) and lactating multiparous ewes (LME; 3-4 years old). While physiological variables were measured both morning and afternoon, blood samples were collected before feeding in the morning to determine all blood components...
September 22, 2018: International Journal of Biometeorology
Jia Gao, Jianguo Shi, Shuting Dong, Peng Liu, Bin Zhao, Jiwang Zhang
Low light is a type of abiotic stress that seriously affects plant growth and production efficiency. We investigated the response mechanisms of summer maize to low light by measuring the changes in endogenous hormones in the grains and during grain filling in summer maize at different light intensities to provide a theoretical basis for the production and management of summer maize under light stress. We applied different light treatments in a field experiment as follows: S, shading from tassel stage (VT) to maturity stage (R6); CK, natural lighting in the field; and L, increasing light from VT to R6...
September 22, 2018: International Journal of Biometeorology
Snigdha Shaw, Dishari Ghosh, Utkarsha Kumar, Usha Panjwani, Bhuvnesh Kumar
Imperishable research work was done on females visiting high-altitude (HA) areas for recreational activities or job purposes as well as on female HA natives. Hypoxia at HA is an unavoidable condition that affects the determinants of female reproductive functions like, the age of menarche and menopause, whole reproductive span, hormone synthesis, and fertility. This review will emphasize whether HA hypoxia is a threat to women: residents or visitors by analyzing these proximate determinants. Delayed menarcheal and advanced menopausal age was found to shorten the reproductive span in some HA populations, whereas in some cases, menstrual cycle was also reported to be irregular...
September 14, 2018: International Journal of Biometeorology
Tania Sharmin, Koen Steemers
A thermal comfort questionnaire survey was carried out in the high-density, tropical city Dhaka. Comfort responses from over 1300 subjects were collected at six different sites, alongside meteorological parameters. The effect of personal and psychological parameters was examined in order to develop predictive models. Personal parameters included gender, age, activity, profession-type (indoor or outdoor-based), exposure to air-conditioned space and sweat-levels. Psychological parameters, such as 'the reason for visiting the place' and 'next destination is air-conditioned', had statistically significant effects on thermal sensation...
September 12, 2018: International Journal of Biometeorology
Sina Cosmulescu, Mariana Bîrsanu Ionescu
Phenology is the study of periodic biological events in the plant world that are influenced by the environment. Temperature increase in spring season can advance the spring phases, but warming in autumn and winter may slow the fulfillment of chilling requirements and lead to later onset of spring events. This study examined different genotypes of walnut trees under environmental conditions, and measured the cold demand, heat requirements, and average time from budburst till flowering for 28 walnut genotypes...
September 12, 2018: International Journal of Biometeorology
Peter G Kevan, Patrícia Nunes-Silva, Rangarajan Sudarsan
Although there have been studies of the temperature regimes within flowers, micrometeorology within stems seems to have been overlooked. We present ideas, hypotheses, and a diagrammatic model on the biophysical and thermodynamic processes that interact in complex ways to result in elevated temperature regimes within hollow stems of herbaceous plants. We consider the effects of the ambient air around the stems, the possible importance of insolation, and greenhouse effects as influenced by stems' orientation and optical properties, i...
September 12, 2018: International Journal of Biometeorology
K K Liyanage, Sehroon Khan, Sailesh Ranjitkar, Haiying Yu, Jianchu Xu, Siraprapa Brooks, Philip Beckschäfer, Kevin D Hyde
All rubber tree clones (Hevea brasiliensis) exhibit regular annual wintering characterized by senescence and abscission of leaves. After 3-4 weeks, this is followed by the onset of new leaves. It is likely that the timing of leaf onset affects the susceptibility of rubber trees to rubber powdery mildew disease, as this predominantly infests young leaves. However, little information is available on the phenological behavior of different rubber clones, or how meteorological factors affect such behavior. We assessed the wintering and flowering patterns of five rubber clones in Xishuangbanna, southwest China, based on observations made from 1978 to 2011, and evaluated how these patterns responded to different meteorological factors...
August 22, 2018: International Journal of Biometeorology
Henrique Barbosa Hooper, Cristiane Gonçalves Titto, Angela Maria Gonella-Diaza, Fábio Luís Henrique, Lina Fernanda Pulido-Rodríguez, Ana Luisa Silva Longo, Thays Mayra da Cunha Leme-Dos-Santos, Ana Carina Alves Pereira de Mira Geraldo, Alfredo Manuel Franco Pereira, Mario Binelli, Júlio Cesar de Carvalho Balieiro, Evaldo Antonio Lencioni Titto
Adaptation is a relevant characteristic to be understood in livestock animals in order to maintain and raise productivity. In Brazil, the Nellore beef cattle are widely disseminated and well-adapted breed that present good thermoregulatory characteristics for tropical environment conditions. Conversely, the physiological and cellular mechanisms required for thermoregulation and thermotolerance in this breed are still limited. The aim of this study was to comprehend the heat loss efficiency at the whole animal level and heat shock response at the cellular level of Nellore cows in tropical climate conditions...
August 16, 2018: International Journal of Biometeorology
Ana Santurtún, Alejandro Villar, María T Zarrabeitia
A person's death is deemed unnatural when it is the result of an external force. This definition, however, does not apply when the cause of death is a respiratory or cardiovascular process triggered by a high concentration of an air pollutant, even if other deaths from toxicological causes (poisonings, overdoses, etc.) are. The distinction between natural and unnatural cause of death, although not internationally standardized, is critical in determining wrongfulness and liability, which in turn can have financial and/or legal repercussions...
November 2018: International Journal of Biometeorology
D Antoniadis, N Katsoulas, C Kittas
The present study explores the effects on microclimate parameters and on heat stress conditions of the bioclimatic redevelopment of an urban schoolyard based mainly on inserting shading canopies and replacing hard surfaces with green cover. This included the use of the recent version of the microclimate model ENVI-met (V4), first validated using experimental data and then later applied to different case studies in schoolgrounds of Volos, a coastal city in central Greece under Mediterranean type climate. The simulation of the existing yard condition showed that the values of the biometorological index PET (physiologically equivalent temperature, in °C), were within the range of the thermal sensation class of extreme heat stress (> 41 °C) from early morning, while at midday 80...
November 2018: International Journal of Biometeorology
N Texier, V Deblauwe, T Stévart, B Sonké, M Simo-Droissart, L Azandi, R Bose, M-N Djuikouo, G Kamdem, N Kamdem, S Mayogo, L Zemagho, V Droissart
We characterized the flowering patterns of 45 epiphytic orchid species occurring in Cameroonian rainforests to explore the environmental and evolutionary forces driving their phenology. We used a dataset of 3470 flowering events recorded over a period of 11 years in the Yaoundé living collection (82% of the flowering events) and from in situ observations (18% of the flowering events) to (i) describe flowering frequency and timing and synchronization among taxa; (ii) test flowering patterns for phylogenetic relatedness at the generic level; and (iii) investigate the spatial patterns of phenology...
November 2018: International Journal of Biometeorology
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