Results 41 to 50 of about 1,868,241 (285)

Incorporating a Canopy Parameterization within a Coupled Fire-Atmosphere Model to Improve a Smoke Simulation for a Prescribed Burn

Atmosphere, 2020
Forecasting fire growth, plume rise and smoke impacts on air quality remains a challenging task. Wildland fires dynamically interact with the atmosphere, which can impact fire behavior, plume rises, and smoke dispersion.
Derek V. Mallia, Adam K. Kochanski, Shawn P. Urbanski, Jan Mandel, Angel Farguell, Steven K. Krueger   +5 more
doaj   +1 more source

Modeling the effect of plume-rise on the transport of carbon monoxide over Africa with NCAR CAM [PDF]

Atmospheric Chemistry and Physics, 2008
We investigated the effects of fire-induced plume-rise on the simulation of carbon monoxide (CO) over Africa and its export during SAFARI 2000 using the NCAR Community Atmosphere Model (CAM) with a CO tracer and a plume-rise parameterization scheme.
H. Guan, R. B. Chatfield, S. R. Freitas, R. W. Bergstrom, K. M. Longo   +4 more
doaj  

Impacts of fire-induced heat, moisture, and aerosol-radiation interactions on wildfire plume rise during the 2019/2020 Australian fires [PDF]

Atmospheric Chemistry and Physics
Wildfire emissions are a major environmental concern, especially as climate change increases the frequency of extreme events. Our study uses ICON-ART coupled with the widely used Freitas plume-rise model to simulate how accounting for fire-induced ...
L. J. Muth, G. A. Hoshyaripour, B. Vogel, H. Vogel, C. Hoose   +4 more
doaj   +1 more source

Estimation of power plant SO₂ emissions using the HYSPLIT dispersion model and airborne observations with plume rise ensemble runs [PDF]

Atmospheric Chemistry and Physics, 2023
The SO2 emission rates from three power plants in North Carolina are estimated using the HYSPLIT Lagrangian dispersion model and aircraft measurements made on 26 March 2019. To quantify the underlying modeling uncertainties in the plume rise calculation,
T. Chai, T. Chai, T. Chai, X. Ren, F. Ngan, F. Ngan, F. Ngan, M. Cohen, A. Crawford   +8 more
doaj   +1 more source

Effect of environmental conditions on volcanic plume rise [PDF]

Journal of Geophysical Research: Atmospheres, 1999
Sensitivity studies were performed with a complex nonhydrostatic volcano plume model that explicitly treats turbulence and microphysics. The impact of environmental conditions such as wind, temperature and humidity profiles was studied for standard observational data. To investigate the wind effects, a two‐dimensional Cartesian formulation of the model
Graf, H., Herzog, M., Oberhuber, J., Textor, C.   +3 more
openaire   +2 more sources

An investigation of methods for injecting emissions from boreal wildfires using WRF-Chem during ARCTAS [PDF]

Atmospheric Chemistry and Physics, 2011
The Weather Research and Forecasting Model (WRF) is considered a "next generation" mesoscale meteorology model. The inclusion of a chemistry module (WRF-Chem) allows transport simulations of chemical and aerosol species such as those observed during NASA'
W. R. Sessions, H. E. Fuelberg, R. A. Kahn, D. M. Winker   +3 more
doaj   +1 more source

Plume Rise from a Stack Based on the Volkov Formula

Tehnički Glasnik
Plume rise from most sources is an important factor in determining ground-level concentration of air pollutants. Various attempts have been done to compute plume rise from stationary sources.
P. Jafari Shalkouhi, F. Atabi, F. Moattar, H. Yousefi   +3 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Ship plume dispersion rates in convective boundary layers for chemistry models [PDF]

Atmospheric Chemistry and Physics, 2008
Detailed ship plume simulations in various convective boundary layer situations have been performed using a Lagrangian Dispersion Model driven by a Large Eddy Simulation Model.
F. Chosson, R. Paoli, B. Cuenot
doaj  

Adenosine triphosphate as a modulator of protein interactions and stability

FEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source