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Atmospherics Factors

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Atmospheric factors refer to the various physical and chemical properties of the atmosphere that influence weather, climate, and environmental conditions. These include temperature, humidity, pressure, wind patterns, and the presence of pollutants, which collectively affect ecological systems and human activities.
lightbulbAbout this topic
Atmospheric factors refer to the various physical and chemical properties of the atmosphere that influence weather, climate, and environmental conditions. These include temperature, humidity, pressure, wind patterns, and the presence of pollutants, which collectively affect ecological systems and human activities.

Key research themes

1. How do atmospheric aerosols influence weather, air quality, and climate through direct and indirect radiative effects?

This research area focuses on understanding the multifaceted roles of different aerosol types—such as dust, sulfate, black carbon (BC), and organic carbon—in modulating atmospheric thermodynamics, cloud microphysics, radiation balance, and precipitation patterns. It also examines the methodological challenges in modeling these effects accurately, crucial for improving weather forecasts, climate sensitivity estimates, and air quality management.

Key finding: Identified that dust aerosols exert the largest direct radiative forcing (ADRF) at the surface and atmosphere in July due to their strong light absorption, causing notable unilateral tendencies in meteorological fields such... Read more
Key finding: Demonstrated that water-soluble aerosols dominate the direct radiative forcing (DRF) in urban environments, whereas black carbon plays a major role at high-altitude mountain sites, modulated by surface albedo differences.... Read more
Key finding: Quantified the contrasting roles of scattering aerosols (e.g., sulfate, nitrate) which cool climate by reflecting solar radiation, and absorbing aerosols (e.g., black carbon, dust) which warm the atmosphere by absorbing solar... Read more

2. What are the complex interactions between meteorology, atmospheric dynamics, and air quality, and how do they influence pollutant dispersion and air pollution episodes?

This theme investigates how meteorological variables such as wind speed, temperature, stability, turbulence, and mesoscale features govern the transport, dilution, and chemical transformation of air pollutants. It highlights the role of boundary-layer dynamics, atmospheric circulation, and moist processes in modulating pollutant concentrations and air quality, providing crucial insights for improving air quality modeling and control strategies.

Key finding: Established that meteorological factors, particularly wind speed and temperature, explain over 70% of the variation in ozone and particulate matter concentrations across urban regions. Highlighted challenges in modeling... Read more
Key finding: Emphasized the crucial role of atmospheric turbulence—both mechanically and thermally generated—in controlling the vertical transport and mixing of aerosols and trace gases within the planetary boundary layer, especially in... Read more
Key finding: Reviewed how meteorological parameters—wind speed and direction, temperature, humidity, atmospheric stability—govern the transport and dispersion of air pollutants, formation of inversion layers, and photochemical smog... Read more

3. Can external geophysical and solar phenomena influence atmospheric composition, climate variability, and air quality through complex coupled mechanisms?

Research in this area explores the less conventional drivers of atmospheric variability, including geomagnetic field modulations affecting cosmic ray fluxes, solar eclipses impacting photochemical processes, and atmospheric disturbances triggered by lithospheric or solar events. Understanding these linkages is essential for comprehensive climate and air quality assessments, incorporating external forcings into predictive frameworks.

Key finding: Identified causal chains linking secular variations in the Earth's geomagnetic field to modulations of galactic cosmic ray (GCR) fluxes penetrating the atmosphere, causing alterations in ozone density near the tropopause.... Read more
Key finding: Documented the rapid decrease in solar direct radiation by over 85% during the 21 June 2020 annular solar eclipse, resulting in a temperature drop of approximately 2 °C and increased relative humidity. Observed significant... Read more
Key finding: Synthesized observations of atmospheric variability linked to seismic activity, solar flares, and other external perturbations including reduced very low frequency (VLF) radio signal noise amplitudes preceding earthquakes and... Read more

All papers in Atmospherics Factors

In the hospitality industry improved service quality is essential to make customer happy. The rapid growth of the hospitality industry in the first decade of the 21st century forced the managers to evaluate the importance of service... more
Employees stay with any organization because of two main reasons either because there are prices to pay for exiting from the current organization (loss of friendly colleagues, loss of benefit after retirement, loss of familiar... more
In the hospitality industry improved service quality is essential to make customer happy. The rapid growth of the hospitality industry in the first decade of the 21st century forced the managers to evaluate the importance of service... more
Employees stay with any organization because of two main reasons either because there are prices to pay for exiting from the current organization (loss of friendly colleagues, loss of benefit after retirement, loss of familiar... more
Employees stay with any organization because of two main reasons either because there are prices to pay for exiting from the current organization (loss of friendly colleagues, loss of benefit after retirement, loss of familiar... more
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