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Chapter and Conference Paper
Impact of Regulatory Measures on Pollutants Concentration in Urban Street Canyon – A Pilot Study
Many studies show the significance of transport-related air pollution in urban areas and its impact on human health. Implementation of technological improvements, low emission zones (LEZ) and more rigorous exh...
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Chapter and Conference Paper
Time Series Analysis of Asthma Hospital Admissions and Air Quality in Sofia – A Pilot Study
Asthma is a multifaceted inflammatory disease of the airways, which takes a heavy toll on public health and quality of life in Bulgaria. The present study aimed to investigate the short-term effects of air pol...
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Chapter and Conference Paper
Multivariate Statistical Modelling of Urban Air-Quality
The air quality data for the city of Sofia were retrieved for the period 2009 to 2018 and includes daily observations from four automatic monitoring stations (Hypodruma, Pavlovo, Nadejda, Drujba) for the follo...
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Article
Simulations of Coastal Fog in the Canadian Atlantic with the Weather Research and Forecasting Model
We evaluate the efficacy of microphysics and planetary-boundary-layer (PBL) parametrizations of the Weather Research and Forecasting (WRF) model for simulation of the coverage and intensity (visibility) of fog...
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Chapter
Study of the Extreme Thermal Conditions for the Sofia Region—Preliminary Results
The environmental thermal comfort is one of the issues not only these days, but also in the future, concerning the results from the climate projections. The objective of this paper is to study the human discom...
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Chapter and Conference Paper
Validation of WRF with Detailed Topography Over Urban Area in Complex Terrain
The urban convective atmospheric boundary layer (ABL) structure and its evolution were studied with Weather Research and Forecasting (WRF) model for the period of Sofia Experiment 2003. The experimental data o...
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Chapter and Conference Paper
Correction to: Impact of Data Assimilation on Short-Term Precipitation Forecasts Using WRF-ARW Model
In the originally published version of chapter 30 an acknowledgement was missing. This has been corrected.
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Chapter and Conference Paper
Impact of Data Assimilation on Short-Term Precipitation Forecasts Using WRF-ARW Model
In spite of efforts made by the scientific community during the last decades on the weather forecast improving, prediction of precipitation systems and fogs is still considered to be a difficult challenge. The...
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Chapter and Conference Paper
Examination of the Process of Automated Closure of Containers with Screw Caps
A test-rig for the study of the parameters of the process of automated closing of containers with screw caps is designed and realized. The purpose of the developed test-rig is to study and manage the parameter...
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Article
Open AccessProceedings of The 8th Romanian National HIV/AIDS Congress and The 3rd Central European HIV Forum
O1 HIV-1 diversity in Bulgaria (current molecular epidemiological picture)
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Article
Assessment of Planetary Boundary-Layer Schemes in the Weather Research and Forecasting Mesoscale Model Using MATERHORN Field Data
The study was aimed at understanding the deficiencies of numerical mesoscale models by comparing predictions with a new high-resolution meteorological dataset collected during the Mountain Terrain Atmospheric ...
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Article
Numerical Model Inter-comparison for Wind Flow and Turbulence Around Single-Block Buildings
Wind flow and turbulence within the urban canopy layer can influence the heating and ventilation of buildings, affecting the health and comfort of pedestrians, commuters and building occupants. In addition, th...
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Chapter and Conference Paper
Local to Regional Dilution and Transformation Processes of the Emissions from Road Transport
The objective of the present work is to study in detail the dilution processes and chemical transformations of the generated by road transport from the local scale to the scale of the global models and on deri...
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Chapter and Conference Paper
Study of the Pollution Exchange between Bulgaria and Northern Greece
The present work is an overall report on an extensive joint study, aimed at a detailed study and explanation of the pollution transport in the air basin over South-western Bulgaria and Northern Greece and asse...
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Article
Accounting for the Mesoscale Effects on the Air Pollution in Some Cases of Large Sulfur Pollution in Bulgaria or Northern Greece
The objective of the present work is to demonstrate the influence of the meso-scale dynamic phenomena on the larger scale air pollution characteristics. A limited set of episodes with very large sulphur pollut...
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Chapter
Study of the Effects of the Rila and Rhodope Mountains on the Mesoscale Pollution Transport
There is no doubt that the mountains of the Rila and Rhodope massif cause significant mesoscale deformations of the air flows. On the other hand it is clear that the local flow systems, caused by the horizonta...
