Type
Topic
Region
Year
Displaying 4576 - 4600 of 5840
After a mild wildfire season in 2016-but following back-to-back record seasons the previous two years-Oregon’s luck ran out. Despite fire suppression systems regarded as best-in-class for private and public lands, lightning and human-caused wildfires ravaged the state’s forests…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Economics, Emissions and Smoke, Fire Effects, Fire Occurrence
Region(s): Northwest
Keywords: 2017 fire season, Oregon
Ambient and fire-induced atmospheric turbulence in the vicinity of wildland fires can affect the behavior of those fires and the dispersion of smoke. The presence of forest overstory vegetation can further complicate the evolution of local turbulence regimes and their…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects
Region(s): Eastern
Keywords: turbulence, New Jersey, Pinelands National Reserve, turbulent kinetic energy, smoke dispersion, fire front
Smoke from fire can sharply reduce air quality by releasing particulate matter, one of the most dangerous types of air pollution for human health. A third of U.S. households have someone sensitive to smoke. Minimizing the amount and impact of smoke is a high priority for land…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Hazard and Risk, Models, Prescribed Fire, Restoration and Rehabilitation
Region(s): California, Northwest, Rocky Mountain
Keywords: air quality, risk reduction, air resource management, fire management, BlueSky Modeling Framework
This webinar addresses additional issues and questions that arose during the original webinar, “Prescribed Fire: Smoke Management and Regulatory Challenges." Moderator: Mike Zupko, Executive Director, Wildland Fire Leadership Council. Panelists: Pete Lahm, Smoke Manager, U.S.…
Person: Zupko, Lahm, Melvin, Uhl
Year: 2018
Type: Media
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects, Hazard and Risk, Outreach, Planning, Prescribed Fire, Regulations and Legislation, Safety, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: smoke management, wildfires, air quality, smoke dispersion, public relations, agencies, public involvement
In several biomes, including croplands, wooded savannas, and tropical forests, many small fires occur each year that are well below the detection limit of the current generation of global burned area products derived from moderate resolution surface reflectance imagery. Although…
Person:
Year: 2012
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Mapping, Monitoring and Inventory, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: CO2 - carbon dioxide, agriculture, agricultural burning, carbon cycle, area burned, land use change, wildland fire, wildfires, MODIS - Moderate Resolution Imaging Spectroradiometer, biomass burning
Secondary organic aerosol (SOA) has been shown to form in biomass-burning emissions in laboratory and field studies. However, there is significant variability among studies in mass enhancement, which could be due to differences in fuels, fire conditions, dilution, and/or…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fuels
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: organic aerosols, biomass burning, plumes, laboratory experiments
The volatile nature of biomass burning organics may complicate the evolution of organics in laboratory smog-chamber experiments and in ambient plumes. We simulate the evolution of organic mass (including gas and particles) in the chamber experiments using the TwO-Moment Aerosol…
Person:
Year: 2017
Type: Data
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: aerosol formation, biomass burning, laboratory experiments, plume
In this report, the Commission calls for transformational culture change in its forest management practices. The U.S. Department of Agriculture (USDA) reported in December 2017 that approximately 27 million trees had died statewide on federal, state and private lands since…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Prevention, Fuels, Hazard and Risk, Outreach, Planning, Prescribed Fire, Restoration and Rehabilitation
Region(s): California
Keywords: Sierra Nevada, forest management, fire management, tree mortality, bark beetle, drought, natural fire regime, carbon sequestration, air quality, public awareness
Formaldehyde (HCHO) provides a proxy to reveal the isoprene and biogenic volatile organic compounds emission which plays important roles in atmospheric chemical process and climate change. The ground-based observation with zenith-sky DOAS is carried out in order to validate the…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: China, formaldehyde, biomass burning, land use, land cover, population
This study investigates a significant biomass burning (BB) event occurred in Colorado of the United States in 2012 using the Community Multi-scale Air Quality (CMAQ) model. The simulation reasonably reproduced the significantly high upper tropospheric O3 concentrations (up to…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: O3 - ozone, upper troposphere, biomass burning, CMAQ - Community Multiscale Air Quality Modeling System, Colorado, air quality
A synthesis of data and analyses identified eight separate wildfire events (five in boreal Canada and three in the western United States) that impacted the Pittsburgh Supersite, as well as Toronto, during June and July 2002. These data also revealed a larger structure in the…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models, Monitoring and Inventory
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest, International
Keywords: boreal fire, HYSPLIT - Hybrid Single-Particle Lagrangian Integrated Trajectory, PM - particulate matter, PM2.5, air pollution, Canada, stagnant conditions, wildfires, synoptic
Many plant species are dependent on soil-stored seeds for their persistence in fire-prone systems. Seed germination is often stimulated by fire-related cues including heat and smoke, but the way these cues promote germination may differ between structurally distinct plant…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): International
Keywords: seed germination, seed bank, Australia, fire-prone ecosystem
Given the rapid nature of climate change occurring in the Arctic and the difficulty climate models have in quantitatively reproducing observed changes such as sea ice loss, it is important to improve understanding of the processes leading to climate change in this region,…
Person:
Year: 2014
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects, Models, Monitoring and Inventory
Region(s): Alaska, International
Keywords: Arctic, air pollution, climate change, aerosols, O3 - ozone, black carbon, POLARCAT - Polar Study using Aircraft, Remote Sensing, Surface Measurements and Models, of Climate, Chemistry, Aerosols, and Transport, wildfires
Black carbon (BC) concentrations observed in 22 snowpits sampled in the northwest sector of the Greenland ice sheet in April 2014 have allowed us to identify a strong and widespread BC aerosol deposition event, which was dated to have accumulated in the pits from two snow storms…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Mapping, Models, Monitoring and Inventory
Region(s): Alaska, International
Keywords: Canada, Greenland, black carbon, LiDAR - Light Detection and Ranging, WRF-Chem, deposition, wildfires
In 2002, an enormous amount of smoke has been emitted from Yakutsk wildfires. In this study, we examine the impact of smoke on cloud properties and precipitation associated with frontal systems using the WRF-Chem-SMOKE model and satellite data. The smoke emissions are computed…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence, Models, Weather
Region(s): International
Keywords: Yakutsk, WRF-Chem, satellite data, Russia, organic matter, black carbon, clouds, biomass burning, aerosols
Prescribed fire (rx fire) is a safe way to apply a natural process, ensure ecosystem health and reduce wildfire risk. This webinar will provide an introduction to prescribed fire for air quality and air resource specialists as well as other non-fire professionals. Knowledge of…
Person: Long
Year: 2017
Type: Media
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Planning, Prescribed Fire, Safety, Weather
Region(s): Southern
Keywords: SFE - Southern Fire Exchange, fire regimes, fire suppression effects, fire-adapted ecosystems, animals, fire reduction, combustion, fire spread, ignition method, smoke management
The uncertainty in biomass burning emissions are large in many regions due to high variation of fire characteristics, limitation of fire data and uncertainty in factors calculation. The simulations in Mainland Southeast Asia (MSEA), using Fire Inventory from NCAR (FINN) as the…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): International
Keywords: Asia, PM - particulate matter, biomass burning, air quality model, FRP - Fire Radiative Power
Relationships between boreal wildfire emissions and day-to-day variations in meteorological variables are complex and have important implications for the sensitivity of high-latitude ecosystems to climate change. We examined the influence of environmental conditions on boreal…
Person:
Year: 2016
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Models, Weather
Region(s): Alaska
Keywords: wildfires, air quality, weather observations, fire models, fuel consumption, biomass burning, boreal forest
An unprecedented wildfire impacted the northern Alberta city of Fort McMurray in May 2016 causing a mandatory city wide evacuation and the loss of 2,400 homes and commercial structures. A two-hectare wildfire was discovered on May 1, grew to ~ 157,000 ha by May 5, and continued…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, International
Keywords: boreal fire, biomass combustion, emission ratio, PM - particulate matter, O3 - ozone, S - sulfur, Fort McMurray Fire, Alberta, Canada, air quality
Quantifying biomass consumption and carbon release is critical to understanding the role of fires in the carbon cycle and air quality. We present a methodology to estimate the biomass consumed and the carbon released by the California Rim fire by integrating postfire airborne…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fire Occurrence, Mapping
Region(s): California
Keywords: LiDAR - Light Detection and Ranging, biomass consumption, C - carbon, megafires, Landsat, scientific data integration, 2013 Rim Fire, carbon release
Constraining the complex refractive indices, optical properties and size of brown carbon (BrC) aerosols is a vital endeavor for improving climate models and satellite retrieval algorithms. Smoldering wildfires are the largest source of primary BrC, and fuel parameters such as…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels
Region(s): Alaska, International
Keywords: brown carbon aerosol, refractive index, optical properties, smoldering fires, biomass burning, Indonesia
Climate forecasts predict an increase in frequency and intensity of wildfires. Associations between health outcomes and population exposure to smoke from Washington 2012 wildfires were compared using surface monitors, chemical-weather models, and a novel method blending three…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence, Models, Safety
Region(s): Northwest
Keywords: Washington, public health, PM2.5, cardiopulmonary, WRF-Chem, epidemiology, cardiovascular effects, respiratory effects, hospitalizations
We used spatial optimization to allocate and prioritize prescribed fire treatments in the fire-prone Bages County, central Catalonia (northeastern Spain). The goal of this study was to identify suitable strategic locations on forest lands for fuel treatments in order to: 1)…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Models, Prescribed Fire
Region(s): International
Keywords: optimization, Mediterranean region, Spain, fuel treatments, fire spread
In the Mediterranean ecosystem, wildfires are very frequent and the predicted future with a probable increase of fires could drastically modify the vegetation scenarios. Vegetation fires are an important source of gases and primary emissions of fine carbonaceous particles in the…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior
Region(s): International
Keywords: Italy, deciduous trees, coniferous, biomass burning, Mediterranean ecosystem, particulate emissions, Pinus halepensis, Quercus pubescens, laboratory fires
Northern boreal forests are sensitive to many effects of global change. This is of particular concern due to the proportionally greater climate change projected for the area in which these forests occur. One of the sensitive areas is the Far North of Ontario (FNO), consisting of…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fuels, Hazard and Risk
Region(s): International
Keywords: boreal forest, wildfires, Canada, northern Ontario, tundra, carbon balance