Results 11 to 20 of about 92 (69)

Fire Intensity and spRead forecAst (FIRA): A Machine Learning Based Fire Spread Prediction Model for Air Quality Forecasting Application. [PDF]

Geohealth
Abstract Fire activities introduce hazardous impacts on the environment and public health by emitting various chemical species into the atmosphere. Most operational air quality forecast (AQF) models estimate smoke emissions based on the latest available satellite fire products, which may not represent real‐time fire behaviors without considering fire ...
Hung WT, Baker B, Campbell PC, Tang Y, Ahmadov R, Romero-Alvarez J, Li H, Schnell J.   +7 more
europepmc   +2 more sources

Analysis of Fire-Induced Circulations during the FireFlux2 Experiment

Fire, 2023
Despite recent advances in both coupled fire modeling and measurement techniques to sample the fire environment, the fire–atmosphere coupling mechanisms that lead to fast propagating wildfires remain poorly understood.
Adam Kochański, Craig B Clements, Angel Farguell   +2 more
exaly   +3 more sources

Capturing Plume Rise and Dispersion with a Coupled Large-Eddy Simulation: Case Study of a Prescribed Burn

Atmosphere, 2019
Current understanding of the buoyant rise and subsequent dispersion of smoke due to wildfires has been limited by the complexity of interactions between fire behavior and atmospheric conditions, as well as the uncertainty in model evaluation data.
Nadya Moisseeva
exaly   +3 more sources

Simulation of Air Pollution Produced by Forest Fires Using the WRF-SFIRE-CHEM Model in Greece: Study Cases

Fire Technology
Abstract Wildfire risk and the extent of burned areas have been increasing in the Mediterranean region over recent decades, driven by high temperatures, low humidity, and extreme weather conditions intensified by climate change.
Ioannis Sakellaris, Thomas Maggos, John G Bartzis   +2 more
exaly   +2 more sources

Wildfire smoke-plume rise: a simple energy balance parameterization [PDF]

Atmospheric Chemistry and Physics, 2021
The buoyant rise and the resultant vertical distribution of wildfire smoke in the atmosphere have a strong influence on downwind pollutant concentrations at the surface. The amount of smoke injected vs.
N. Moisseeva, R. Stull
doaj   +1 more source

Sensitivity of Burned Area and Fire Radiative Power Predictions to Containment Efforts, Fuel Density, and Fuel Moisture Using WRF‐Fire

Journal of Geophysical Research: Atmospheres, Volume 128, Issue 18, 27 September 2023., 2023
Abstract Predicting the evolution of burned area, smoke emissions, and energy release from wildfires is crucial to air quality forecasting and emergency response planning yet has long posed a significant scientific challenge. Here we compare predictions of burned area and fire radiative power from the coupled weather/fire‐spread model WRF‐Fire (Weather
Francis A. Turney, Pablo E. Saide, Pedro A. Jimenez Munoz, Domingo Muñoz‐Esparza, Edward J. Hyer, David A. Peterson, Maria E. Frediani, Timothy W. Juliano, Amy L. DeCastro, Branko Kosović, Xinxin Ye, Laura H. Thapa   +11 more
wiley   +1 more source

Characterizing the Role of Moisture and Smoke on the 2021 Santa Coloma de Queralt Pyroconvective Event Using WRF‐Fire

Journal of Advances in Modeling Earth Systems, Volume 15, Issue 5, May 2023., 2023
Abstract Smoke from wildfires or burning biomass directly affects air quality and weather through modulating cloud microphysics and radiation. A simple wildfire emission coupling of black carbon (BC) and organic carbon (OC) with microphysics was implemented using the Weather Research and Forecasting model's fire module.
Masih Eghdami, Timothy W. Juliano, Pedro A. Jiménez, Branko Kosovic, Marc Castellnou, Rajesh Kumar, Jordi Vila‐Guerau de Arellano   +6 more
wiley   +1 more source

Using Satellite‐Derived Fire Arrival Times for Coupled Wildfire‐Air Quality Simulations at Regional Scales of the 2020 California Wildfire Season

Journal of Geophysical Research: Atmospheres, Volume 128, Issue 6, 27 March 2023., 2023
Abstract Wildfire frequency has increased in the Western US over recent decades, driven by climate change and a legacy of forest management practices. Consequently, human structures, health, and life are increasingly at risk due to wildfires. Furthermore, wildfire smoke presents a growing hazard for regional and national air quality.
W. Lassman, J. D. Mirocha, R. S. Arthur, A. K. Kochanski, A. Farguell Caus, A. M. Bagley, M. Carreras Sospedra, D. Dabdub, M. Barbato   +8 more
wiley   +1 more source

Regional CO2 Inversion Through Ensemble‐Based Simultaneous State and Parameter Estimation: TRACE Framework and Controlled Experiments

Journal of Advances in Modeling Earth Systems, Volume 15, Issue 3, March 2023., 2023
Abstract Atmospheric inversions provide estimates of carbon dioxide (CO2) fluxes between the surface and atmosphere based on atmospheric CO2 concentration observations. The number of CO2 observations is projected to increase severalfold in the next decades from expanding in situ networks and next‐generation CO2‐observing satellites, providing both an ...
Hans W. Chen, Fuqing Zhang, Thomas Lauvaux, Marko Scholze, Kenneth J. Davis, Richard B. Alley   +5 more
wiley   +1 more source

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