Type
Topic
Region
Year
Displaying 151 - 175 of 246
Fluxes of water vapor, heat, and carbon dioxide associated with a prescribed grass fire were documented quantitatively using a 43-m instrumented flux tower within the burn perimeter and a tethered balloon sounding system immediately downwind of the fire. The measurements…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: grass fire, heat, smoke measurements, CO2 flux, water vapor
Biomass burning is an important source of many trace gases in the global troposphere. We have constructed an airborne trace gas measurement system consisting of a Fourier transform infrared spectrometer (FTIR) coupled to a flow-through multipass cell (AFTIR) and installed it on…
Person:
Year: 1999
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Occurrence, Intelligence, Prescribed Fire
Region(s): Southern
Keywords: North Carolina, AFTIR - airborne Fourier transform infrared spectroscopy, trace gas emissions, biomass burning, troposphere, experimental fire, fuel loading, wildfires, air quality, gases, GPS - global positioning system, military lands, fire management, forest management, smoke management, SFP - Southern Fire Portal
Seasonal trends in carbon emissions from savanna fires in Western Province, Zambia, were investigated in the early dry season (early June to early August) 1996. The objective was to determine the effect of fuel moisture content on combustion factors and modified combustion…
Person:
Year: 1999
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels
Region(s): International
Keywords: fuel consumption, carbon emissions, Africa, biomass burning, Zambia, savanna fires
The trace gas emissions from six biomass fires, including three grass fires, were measured using a Fourier transform infrared (FTIR) spectrometer coupled to an open-path, multipass cell (OP-FTIR). The quantified emissions consisted of carbon dioxide, nitric oxide, water vapor,…
Person:
Year: 1999
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: laboratory fires, surface fuels, trace gas emissions, infrared spectroscopy
The Research and Development (R&D) arm of the U.S. Department of Agriculture (USDA) Forest Service works at the forefront of science to improve the health and use of our Nation's forests and grasslands. Research has been part of the Forest Service mission since the agency's…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Administration, Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Intelligence, Mapping, Models, Outreach, Prescribed Fire, Restoration and Rehabilitation, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: Forest Service, research, research accomplishment report
During 2005, the USDA Forest Service celebrated its Centennial, recognizing 100 years of successfully caring for the land and serving people. The Rocky Mountain Research Station has been, and continues to be, an integral part of the Forest Service mission, dating back to the…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Administration, Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fuels, Intelligence, Mapping, Models, Monitoring and Inventory, Outreach, Planning, Prescribed Fire, Restoration and Rehabilitation
Region(s): Great Basin, Northern Rockies, Rocky Mountain, Southwest
Keywords: Forest Service, research, Rocky Mountain Research Station
Participants in a series of focus groups discussed how their tolerance for smoke varied by the source of the smoke and found their opinions changing as they talked with other participants. Even those opposed to smoke from agricultural burning eventually found smoke from…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Communications, Emissions and Smoke, Fuels, Prescribed Fire, Social Science, Wildland-Urban Interface (WUI)
Region(s): Northern Rockies, Northwest
Keywords: defensible space, education, social acceptance, wildfire management, focus groups, fuels treatments
Fluxes of turbulent momentum, heat, moisture, as well as carbon dioxide associated with a prescribed Gulf Coast prairie fire, were documented quantitatively using a 42-m instrumented flux tower within the burn perimeter and a tethered balloon sounding system immediately downwind…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire
Region(s): Southern
Keywords: prairie fires, fire plumes, water vapor
The effect that the wind's vertical variation has on fire plume behaviour is investigated. A parabolized set of governing equations are discretized using finite differences to arrive at the numerical model. Lagrangian particles are used to visualize the flow, account for…
Person:
Year: 1999
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Weather
Region(s): Alaska, California
Keywords: plume rise, wind, plume structure, particulate emissions
For many thousands of years south-eastern Australia has experienced wildfires. These days, in an average summer around six hundred wildfires occur in Victoria's parks and forests. Between twenty and thirty percent of these fires are caused by lightning. In the last 150 years…
Person:
Year: 1999
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Prescribed Fire, Weather
Region(s): International
Keywords: seasonal effects, topography, Australia, slope effects
Evolving wildfire management policies are aimed at more comprehensive treatments of current wildland fire management problems. Key policies are identified that affect wildfire and fuels management. Policies are discussed in the context of institutional factors such as…
Person:
Year: 1999
Type: Document
Source: FRAMES
Topic(s): Economics, Emissions and Smoke, Fire Prevention, Fuels, Models, Planning, Prescribed Fire, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: BEHAVE, fire management, fire suppression, resource management, coordination
An iterative method for determining slope in noisy lidar data is considered based on the use of a corrected ('shaped') inverted function and an assumed behavior of the unknown function of interest (an 'image function'). The method is utilized for extracting extinction-…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: LiDAR - Light Detection and Ranging, extinction coefficient, elastic scanning lidar
The morphology of particles emitted by wildland fires contributes to their physical and chemical properties but is rarely determined. As part of a study at the USFS Fire Sciences Laboratory (FSL) investigating properties of particulate matter emitted by fires, we studied the…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: particle size, biomass burning, particle morphology, particle microstructure
This strategic plan is a technical discussion of the implementation and development of models and data systems used to manage the air quality impacts of wildland and prescribed fires. Strategies and priorities in the plan were generated by the Express Team (chartered by the…
Person:
Year: 1999
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models, Planning
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, fire management, fire modeling, wildland fire, air, air pollution, FERA - Fire and Environmental Research Applications Team, air resource management, data systems
Fire managers and safety officers concerned with smoke exposure among fire crews can use electronic carbon monoxide (CO) monitors to track and prevent overexposure to smoke. Commonly referred to as dosimeters, these lightweight instruments measure the concentration of CO in the…
Person:
Year: 1999
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Prevention, Logistics, Prescribed Fire, Regulations and Legislation, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, FERA - Fire and Environmental Research Applications Team, human health, smoke exposure, occupational exposure, C - carbon, CO - carbon monoxide, fire equipment, fire management, fire suppression, gases, health factors, particulates, regulations, sampling, smoke effects, statistical analysis, smoke management, wilderness areas, wildfires
Over the last several decades, the overall air quality goal in the United States has been to protect public health and clear skies by reducing emissions. At the same time, however, the risk of catastrophic fire has been rising in forests around the country as overly dense trees…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models, Planning, Prescribed Fire, Regulations and Legislation, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, BlueSky Modeling Framework, smoke concentration, smoke effects, smoke management, smoke estimation tools, smoke forecasting
Fires contribute substantial emissions of trace gases and particles to the atmosphere. These emissions can impact air quality and even climate. We have developed a modeling framework to estimate the emissions from fires in North and parts of Central America (10-71 degrees N and…
Person:
Year: 2006
Type: Document
Source: FRAMES, TTRS
Topic(s): Communications, Emissions and Smoke, Fuels, Intelligence, Mapping, Models, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Canada, emissions, FERA - Fire and Environmental Research Applications Team, North America, PM - particulate matter, Mexico, agriculture, agricultural fires, CO - carbon monoxide, South America, air quality, biomass, C - carbon, cover, croplands, duff, fire management, fuel loading, gases, grasslands, herbaceous vegetation, overstory, particulates, precipitation, remote sensing, shrubs, smoke management, statistical analysis, wetlands, wildfires
Resilience against fire disturbance of Mediterranean vegetation has been frequently described. However, fire regimes change due to abandonment of local land use practices and climatic change. Thus, it is useful to know the importance of fire-specific and unspecific mechanisms…
Person:
Year: 2006
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Restoration and Rehabilitation
Region(s): International
Keywords: disturbance, regeneration, succession, fire adaptations, germination, Spain, seeder, Cistaceae, ash, char, coniferous forests, fire exclusion, fire frequency, fire regimes, fire management, firebreak, forest management, heat, land use, logging, mountains, Mediterranean habitats, Pinus halepensis, post-fire recovery, seed germination, Quercus coccifera , seeds, site treatments, smoke effects, sprouting, Stipa tenacissima, wood
Elevated atmospheric carbon dioxide (CO2) often stimulates the growth of fine roots, yet there are few reports of responses of intact root systems to long-term CO2 exposure. We investigated the effects of elevated CO2 on fine root growth using open top chambers in a scrub oak…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): Southern
Keywords: CO2 - carbon dioxide, fine roots, Florida, root length density, minirhizotrons, root closure
The Fire and Environmental Research Applications team has completed a set of online tutorials, instructor’s guides and student workbooks to help land managers use the Natural Fuels Photo Series, Fuel Characteristic Classification System (FCCS), Consume 3.0, and Fire Emissions…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: Natural Fuels Photo Series, FCCS - Fuel Characteristic Classification System, CONSUME, FEPS - Fire Emissions Production Simulator, land management
BlueSkyRAINS is a smoke modeling system that allows users to view smoke forecasts from fire. These smoke predictions have a large number of potential uses, from informing go/no-go decisions on prescribed fires to wildland fire use/wildfire categorization decisions to information…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: BlueSkyRAINS, smoke management
Fact sheet on the final regional haze regulations for protection of visibility in national parks and wilderness areas.
Person:
Year: 1999
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, regional haze, visibility, EPA - Environmental Protection Agency
Few studies have examined the respiratory effects of multiyear ozone exposures in human populations. We examined associations between current respiratory health status and long-term ozone exposure histories in 520 Yale College (New Haven, CT) students who never smoked.…
Person:
Year: 1999
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: ozone, health impacts, respiratory illness
On Monday, 19 July, and Tuesday, 20 July 2004, the air over Houston, Texas, appeared abnormally hazy. Transport model results and data from the Atmospheric Infrared Sounder (AIRS), the Moderate Resolution Imaging Spectrometer (MODIS), the Measurement of Ozone by Airbus In-…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping
Region(s): Alaska, Southern, International
Keywords: ozone, air pollution, Texas, MODIS - Moderate Resolution Imaging Spectroradiometer, wildfire, Canada
Extensive wildfires burned in northern North America during summer 2004, releasing large amounts of trace gases and aerosols into the atmosphere. Emissions from these wildfires frequently impacted the PICO-NARE station, a mountaintop site situated 6-15 days downwind from the…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: boreal forest, black carbon, boreal fire, ozone, North Atlantic, O3 - ozone, nitrogen oxides