scholarly journals The human heat balance in the city of Novi Sad (Serbia)

2012 ◽  
Vol 92 (4) ◽  
pp. 99-112
Author(s):  
Aleksandar Krajic
Keyword(s):  
Heat Exchange ◽  
Heat Balance ◽  
Meteorological Data ◽  
Balance Model ◽  
Human Organism ◽  
Health Resource ◽  
Weather Variables ◽  
Climatological Station ◽  
Novi Sad ◽  
The City

This analysis is based on the human heat balance according to the bioclimatic man-environment heat exchange model created by Krzysztof B?a?ejczyk. The final result of the human heat balance model points to biothermal weather situations for the outdoor recreational needs. In this analysis, middles daily meteorological data (of climatological station of Novi Sad) were used for two extreme months, January and July. In this work, it is analyzed two periods, the first is for 1992-2010. and the second is for year 2010. The aim is to show how weather can be evaluated for recreational needs which the health resource of Novi Sad and to point out the shortcomings when it comes to multi-year analysis. The objective of this article has been to present a bioclimatic analysis of city Novi Sad and how weather variables come together in order to give a climate meaning on human organism.

scholarly journals Bioclimate analysis of Mountain Bjelasnica

2014 ◽  
Vol 94 (1) ◽  
pp. 91-104
Author(s):  
Sanda Susnjar ◽  
Milica Pecelj
Keyword(s):  
Heat Exchange ◽  
Meteorological Data ◽  
Weather Conditions ◽  
Human Organism ◽  
Main Task ◽  
Climate Conditions ◽  
Environment Research ◽  
Optimal Function

The main task of this paper was to assess weather suitability on Bjelasnica Mountain for optimal function of a human organism. Also, this paper represents weather classification for certain types of recreation and sport's activities. For the purpose of bioclimate analyses it has been used Model ?MENEX?. This paper deals with the assessment of heat exchange between man and its environment. Research is based on a meteorological data from 2000 to 2010. The aim of a research was to determine periods in year on mountain Bjelasnica with optimal climate conditions for recreation and living but also to define periods with mostly unsuitable weather conditions, except for healthy and well adapted persons and specific type of activities.

scholarly journals TERMAL COMFORT IN THE CITY OF BIJELJINA, FOR THE PERIOD 2009 – 2018 DEFINED BY WGBT

2020 ◽  
Vol 1 (21) ◽  
Author(s):  
Dijana Đurić ◽  
Jovana Topalić Marković
Keyword(s):  
Bosnia And Herzegovina ◽  
Meteorological Data ◽  
Physical Activities ◽  
Human Organism ◽  
Common Value ◽  
The North ◽  
Bioclimatic Model ◽  
Globe Temperature ◽  
The City ◽  
Continental Climate

In paper are presented results of bioclimatic model Wet bulbe globe temperature (WBGT) for the area ofthe city of Bijeljina, for the period of 10 years, from 2009 to 2018. The city is located in the north eastpart of Bosnia and Herzegovina and has a moderate continental climate. Results were obtained bycalculation of meteorological data in software program Biklima 2.6. They show the presence of all fivevalues defined with the WBGT index. Results differ in during the year, and seasons and have differentnumber of days with the Unlimited (<18) being the most common value and Activity should be stopped(>30) the least presence. Some years have the high number of high values (over 30) and present apotential danger for a human organism if exposed to physical activities. Number of consecutive days withhigh value rises and presents danger for human organism.

scholarly journals Using climate reanalysis data in conjunction with multi-temporal satellite thermal imagery to derive supraglacial debris thickness changes from energy-balance modelling

2021 ◽  
pp. 1-19
Author(s):  
Rebecca L. Stewart ◽  
Matthew Westoby ◽  
Francesca Pellicciotti ◽  
Ann Rowan ◽  
Darrel Swift ◽  
...  
Keyword(s):  
Energy Balance ◽  
Surface Energy ◽  
Surface Energy Balance ◽  
Current Knowledge ◽  
Meteorological Data ◽  
Reanalysis Data ◽  
Balance Model ◽  
Thermal Imagery ◽  
Thickness Estimation ◽  
Miage Glacier

Abstract Surface energy-balance models are commonly used in conjunction with satellite thermal imagery to estimate supraglacial debris thickness. Removing the need for local meteorological data in the debris thickness estimation workflow could improve the versatility and spatiotemporal application of debris thickness estimation. We evaluate the use of regional reanalysis data to derive debris thickness for two mountain glaciers using a surface energy-balance model. Results forced using ERA-5 agree with AWS-derived estimates to within 0.01 ± 0.05 m for Miage Glacier, Italy, and 0.01 ± 0.02 m for Khumbu Glacier, Nepal. ERA-5 data were then used to estimate spatiotemporal changes in debris thickness over a ~20-year period for Miage Glacier, Khumbu Glacier and Haut Glacier d'Arolla, Switzerland. We observe significant increases in debris thickness at the terminus for Haut Glacier d'Arolla and at the margins of the expanding debris cover at all glaciers. While simulated debris thickness was underestimated compared to point measurements in areas of thick debris, our approach can reconstruct glacier-scale debris thickness distribution and its temporal evolution over multiple decades. We find significant changes in debris thickness over areas of thin debris, areas susceptible to high ablation rates, where current knowledge of debris evolution is limited.

scholarly journals TARGET MODAL SPLIT MODEL

Transport ◽  
2012 ◽  
Vol 26 (4) ◽  
pp. 418-424 ◽  
Author(s):  
Valentina Basarić ◽  
Jadranka Jović
Keyword(s):  
Public Transport ◽  
Stepwise Regression ◽  
Statistical Data ◽  
Transport Policy ◽  
Wide Range ◽  
Policy Measures ◽  
Novi Sad ◽  
The Relationship ◽  
The City ◽  
Statistical Results

The research presented in this paper is aimed at defining a model that enables the management of the relationship between private vehicles and public transport applying the available instruments of city transport policy such as parking policy and public transport policy measures. Statistical data used for modelling is sourced from the database in a wide range of EU cities. The target model was developed in the form of stepwise regression analysis. Very favourable statistical results were obtained, and the subsequent tests on the city of Novi Sad (250000 inhabitants) led to the conclusion that the obtained results were suitable for implementation in practice. The results of the implemented procedure are of great importance for the enhancement of the existing transport policies in cities, as they enable the development of strategies for finding combinations of instruments that would bring the transport system and urban environment into a desired-viable rather than consequential condition.

Counter-current heat exchange in the respiratory passages: Effect on water and heat balance

1970 ◽  
Vol 9 (2) ◽  
pp. 263-276 ◽  
Author(s):  
Knut Schmidt-Nielsen ◽  
F.Reed Hainsworth ◽  
David E. Murrish
Keyword(s):  
Heat Exchange ◽  
Heat Balance ◽  
Counter Current ◽  
Current Heat

Heat balance model for a human body in the form of wet bulb globe temperature indices

2018 ◽  
Vol 71 ◽  
pp. 1-9 ◽  
Author(s):  
Tomonori Sakoi ◽  
Tohru Mochida ◽  
Yoshihito Kurazumi ◽  
Kohei Kuwabara ◽  
Yosuke Horiba ◽  
...  
Keyword(s):  
Human Body ◽  
Heat Balance ◽  
Balance Model ◽  
Wet Bulb Globe Temperature ◽  
Temperature Indices ◽  
Globe Temperature

scholarly journals A Semiempirical Microscale Model of the Surface Energy Balance and Its Application to Two Urban Rooftops

2008 ◽  
Vol 47 (3) ◽  
pp. 819-834 ◽  
Author(s):  
Timothy M. Barzyk ◽  
John E. Frederick
Keyword(s):  
Energy Balance ◽  
Surface Energy ◽  
Surface Energy Balance ◽  
Balance Model ◽  
Site Specific ◽  
City Hall ◽  
Microscale Model ◽  
Dry Conditions ◽  
Stone Concrete ◽  
The City

Abstract Individual structures within the same local-scale (102–104 m) environment may experience different microscale (&lt;103 m) climates. Urban microclimate variations are often a result of site-specific features, including spatial and material characteristics of surfaces and surrounding structures. A semiempirical surface energy balance model is presented that incorporates radiative and meteorological measurements to statistically parameterize energy fluxes that are not measured directly, including sensible heat transport, storage heat flux through conduction, and evaporation (assumed to be negligible under dry conditions). Two Chicago rooftops were chosen for detailed study. The City Hall site was located in an intensely developed urban area characterized by close-set high-rise buildings. The University rooftop was in a highly developed area characterized by three- to seven-story buildings of stone, concrete, and brick construction. Two identical sets of instruments recorded measurements contemporaneously from these rooftops during summer 2005, and results from the week of 29 July to 5 August are presented here. The model explains 83.7% and 96% of the variance for the City Hall and University sites, respectively. Results apply to a surface area of approximately 1260 m2, at length scales similar to the dimensions of built structures and other urban elements. A site intercomparison revealed variations in surface energy balance components caused by site-specific features and demonstrated the relevance of the model to urban applications.

scholarly journals Reconstruction of the annual balance of Vadret da Morteratsch, Switzerland, since 1865

2009 ◽  
Vol 50 (50) ◽  
pp. 126-134 ◽  
Author(s):  
Johanna Nemec ◽  
Philippe Huybrechts ◽  
Oleg Rybak ◽  
Johannes Oerlemans
Keyword(s):  
Meteorological Data ◽  
Balance Model ◽  
Surface Energy Fluxes ◽  
Temperature And Precipitation ◽  
Continuous Mass ◽  
Weather Stations ◽  
Precipitation Records ◽  
High Elevations ◽  
Annual Balance ◽  
Almost Continuous

AbstractWe have reconstructed the annual balance of Vadret da Morteratsch, Engadine, Switzerland, with a two-dimensional energy-balance model for the period 1865–2005. The model takes into account a parameterization of the surface energy fluxes, an albedo that decreases exponentially with snow depth as well as the shading effect of the surrounding mountains. The model was first calibrated with a 5 year record of annual balance measurements made at 20 different sites on the glacier between 2001 and 2006 using meteorological data from surrounding weather stations as input. To force the model for the period starting in 1865, we employed monthly temperature and precipitation records from nearby valley stations. The model reproduces the observed annual balance reasonably well, except for the lower part during the warmest years. Most crucial to the results is the altitudinal precipitation gradient, but this factor is hard to quantify from the limited precipitation data at high elevations. The simulation shows an almost continuous mass loss since 1865, with short interruptions around 1920, 1935 and 1980. A trend towards a more negative annual balance can be observed since the beginning of the 1980s. The simulated cumulative mass balance for the entire period 1865–2005 was found to be –46mw.e.

scholarly journals ON THE SOLUTION OF ENERGY BALANCE EQUATION SYSTEM TO PREDICT TEMPERATURE DISTRIBUTION IN THE BUILDING ELEMENTS WITH VENTILATED AIR GAP

2014 ◽  
Vol 21 (1) ◽  
pp. 21-30 ◽  
Author(s):  
Edmundas Monstvilas ◽  
Karolis Banionis ◽  
Jurga Poderytė ◽  
Raimondas Bliūdžius ◽  
Arūnas Burlingis
Keyword(s):  
Heat Exchange ◽  
Balance Equation ◽  
Heat Balance ◽  
Internal Surface ◽  
Equation System ◽  
Energy Balance Equation ◽  
Air Gap ◽  
Exchange Processes ◽  
Calculation Results ◽  
Thermal Indicators

The article presents the solution of heat balance equation system, describing heat exchange processes in ventilated envelopes, which was applied to derive formulas for the calculation of temperatures in the ventilated layers of the envelopes. The accurateness of the formulas was assessed by experimental research and analysis of the calculation results. During the process of heat exchange balance equation solution, the equations were simplified by introducing the following restriction into the derived formulas: they may only be applied for the ventilated envelopes with steel or similar coatings as their external layers, i.e. coatings having small heat capacity and minor difference between the external and internal surface temperatures. The derived formulas enable the calculation of the temperatures of the ventilated envelopes in the distance which does not exceed a half of the ventilated air gap length measuring from the air entrance into the gap. However, this restriction does not impede the estimation of the average thermal indicators of the ventilated envelopes.

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