Type
Topic
Region
Year
Displaying 101 - 125 of 202
The air in the valley settles like a grey blanket, engulfing residents with lingering smoke for what could be days or weeks. The smoke might come from a wildfire being fought miles away, a prescribed burn, or a neighbor's woodstove or burn pile. The wind may sweep this low-…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Hazard and Risk, Safety, Social Science
Region(s): Northwest
Keywords: public opinion, smoke impacts, public perceptions, NWFSC - Northwest Fire Science Consortium
The worldwide 'wildfire' problem is headlined by the loss of human lives and homes, but it applies generally to any adverse effects of unplanned fires, as events or regimes, on a wide range of environmental, social, and economic assets. The problem is complex and contingent,…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Prescribed Fire, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: biodiversity, fire management, fire regime, adaptation, policy, fatalities, disaster, assets
Fire disturbance is a primary driver of forest dynamics across the circumpolar boreal region, although there are major differences in continental fire regimes. Relatively infrequent, high intensity crown fires dominate North American boreal forests, and low to moderate intensity…
Person:
Year: 2013
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Models, Weather
Region(s): Alaska, International
Keywords: boreal forest, Canada, fire regimes, carbon emissions, Russia, global climate models, fire intensity, fire size, surface fires, wildfires, air quality, C - carbon, climate change, disturbance, fire management, forest management, coniferous forests
Boreal forest dynamics are largely driven by disturbance, and fire is a prevalent force of change across the boreal circumpolar region. North American and Eurasian boreal fire regimes are known to be very different but there are few quantitative comparison studies. Russian and…
Person:
Year: 2013
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Models, Weather
Region(s): International
Keywords: boreal forest, Canada, fire regimes, carbon emissions, Russia, fire danger rating, fire intensity, fuel loading, fuel types, rate of spread, wildfires, air quality, C - carbon, fire management, forest management
The ability to predict forest fuel consumption is critical, namely in the frame of hazard-reduction burning treatments designed to achieve effective fuel reduction with minimal environmental impact. Litter and understory fine fuels (diameter <0.6 cm) consumption by fire were…
Person:
Year: 2013
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Models, Prescribed Fire
Region(s): International
Keywords: fuel moisture, CO2 - carbon dioxide, Portugal, fire danger rating, fuel consumption, Mediterranean pine forest, experimental fire, fine fuels, fire hazard reduction, fuel loading, surface fires, air quality, litter, understory vegetation, Pinus pinaster, fire management, maritime pine, forest management, fuel management, Mediterranean habitats, pine forests
Areas affected by forest fires that occurred in 2005 were mapped in the municipalities of Boca do Acre and Lábrea (in the southern part of Brazil's state of Amazonas) and estimates were made of the loss of biomass and carbon stock and the committed emissions from increased tree…
Person:
Year: 2013
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Effects, Mapping
Region(s): International
Keywords: carbon emissions, global warming, greenhouse gases, satellite imagery, Amazon, Brazil, fire injuries (plants), fire scar analysis, fire size, wildfires, air quality, biomass, C - carbon, mortality, remote sensing, fire management, forest management, tropical forest
An extensive program of experiments focused on biomass burning emissions began with a laboratory phase in which vegetative fuels commonly consumed in prescribed fires were collected in the southeastern and southwestern US and burned in a series 5 of 71 fires at the US Forest…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire
Region(s): Southern, Southwest
Keywords: field experimental fires, trace gas emissions, emission factors, laboratory experiments, biomass burning
Pollutants sampled during the burning of 30 lb ponderosa pine fuel beds yielded emission factors for CO, hydrocarbon gases, and particulate matter of 146, 8.4, and 9.1 lb/ton of fuel, respectively. When similar beds were treated with diammonium phosphate flame retardant, these…
Person:
Year: 1975
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Prescribed Fire
Region(s): California
Keywords: Pinus ponderosa, ponderosa pine, PM - particulate matter, slash burning, pollutants, flame retardants, air quality, combustion, fire intensity, fire management, forest management, gases, humidity, laboratory fires, CH4 - methane, mopping up, national forests, phosphate, pine forests, slash, wildfires
Sections 111 and 112 of the Clean Air Act relative to the control of particulates are evaluated. Section 111 provides the promulgation of standards for hazardous pollutants which reflect the best systems of emission reduction. Section 112 defines national emission standards for…
Person:
Year: 1975
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, particulates, Clean Air Act, PM - particulate matter
The body of information presented in this paper is directed to those interested in assessing emission rates and concentration levels from agriculture burning, and/or those interested in simulation techniques. This paper describes a source-oriented air pollution monitoring…
Person:
Year: 1975
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory
Region(s): Hawaii
Keywords: agricultural burning, air pollution, emission rate, ambient pollution levels
The advancement of technology relating to particulate emission is pointed out as a significant aspect of this nation's air pollution control efforts. Important factors include the ability of particulates: to cause poor visibility, to constitute a health hazard, to act as…
Person:
Year: 1975
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: Clean Air Act, air pollutants, public health, particulate emissions, fine particulates
Particulate emissions are the most objectionable atmospheric contaminant from forest burning. Little is known of the particulate sizes, and this research was done under laboratory conditions to obtain particle size information. Comments are made concerning techniques for future…
Person:
Year: 1975
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire
Region(s): Northwest
Keywords: particulates, air pollution, FERA - Fire and Environmental Research Applications Team, slash disposal
Models of fire behavior and effects do not always make accurate predictions, and there is not enough systematically gathered data to validate them. To help advance fire behavior and fire effects model development, the Joint Fire Science Program is helping fund the RxCADRE, which…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: aircraft, fire data, RxCADRE
Wildland fires present a challenging environment to make meteorological measurements. Observations in the vicinity of wildland fires are needed to better understand fire-atmosphere interactions and to provide data for the evaluation of coupled fire-atmosphere models. An…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior
Region(s): California
Keywords: Doppler lidar, fire plumes, divergence
Seedlings of Phacelia strictiflora A.L. de Jussieu (Hydrophyllaceae) germinate profusely after major fires in the Cross Timbers forest of Oklahoma and rarely at other times and places. Seed germination was greatly enhanced under laboratory conditions by exposure to a water…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): Southern
Keywords: germination, smoke-induced germination, Oklahoma, Phacelia strictiflora, regeneration
[from the text] Land managers and officials need to understand the diverse public opinions toward smoke from wildland fires; however, a very limited amount of research has been conducted on this topic. Hence, land and fire managers are largely uncertain about society's…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety, Social Science
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: escaped fire, public perception, trust, public health, public attitudes
At the request of the National Wildfire Coordinating Group (NWCG) Equipment and Technology Committee, the National Technology and Development Center undertook a project to determine the exposure levels of wildland smoke to firefighters. In 2010, at the request of the NWCG Risk…
Person:
Year: 2013
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: carcinogen, respirable dust, inhalation irritants, particulate exposure, vegetative smoke
Emissions from biomass combustion are a major source of indoor and outdoor air pollution, and are estimated to cause millions of premature deaths worldwide annually. Whilst adverse respiratory health effects of biomass exposure are well established, less is known about its…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety
Region(s): International
Keywords: air pollution, biomass, health effects, heart rate, respiratory illness, cardiovascular disease, blood pressure
Diagnostic carbon cycle models produce estimates of net ecosystem production (NEP, the balance of net primary production and heterotrophic respiration) by integrating information from (i) satellite-based observations of land surface vegetation characteristics; (ii) distributed…
Person:
Year: 2013
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, International, National
Keywords: Canada, carbon flux, atmospheric inversion, NEP - Net Ecosystem Productivity, rivers, Mexico, biomass burning, NEE - net ecosystem exchange
Developed as a quantitative measurement of fire intensity, fire radiative power (FRP) and the potential applications to smoke plume injection heights, are currently limited by the pixel resolution of a satellite sensor. As a result, this study, the first in a two-part series,…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior
Region(s): California
Keywords: fire temperature, fire area, fire detection, MODIS - Moderate Resolution Imaging Spectroradiometer, satellite, biomass burning, FRP - Fire Radiative Power
Fire radiative power (FRP) over a pixel area has been highlighted as a valuable parameter for quantitatively deriving smoke emissions. However, smoke plume rise forecasts and characterizations of fire intensity require additional information, including the FRP over the fire area…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Weather
Region(s): California
Keywords: atmosphere, fire area, MODIS - Moderate Resolution Imaging Spectroradiometer, temperature, radiative transfer regime, biomass burning, FRP - Fire Radiative Power, water vapor, emissivity
Managers and policy-makers across broad disciplines and organizations are calling for a better understanding of public opinion on natural resource issues. One such issue is that of fire and its role in the management of our forests and rangelands. Public perceptions of fuel…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels, Prescribed Fire, Social Science
Region(s): California, Northern Rockies, Northwest, Southern
Keywords: fuel reduction, public opinion, fire use, survey, public perceptions
Several state air quality agencies have developed policies to issue air quality health index (AQI) warnings based on low values of visual range. Visual range has been defined in the context of how far away a black object has to be such that it is just noticeable or visible. This…
Person:
Year: 2013
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, visual range, PM2.5 emissions, particulate matter (PM) concentrations, AQI - Air Quality Index
Filter-based samplers have long been employed by monitoring networks to measure aerosol mass concentrations because they are robust and the collected filters can be used for analysis of speciated mass concentrations. However, filter-based samplers have several disadvantages.…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: NAAQS - National Ambient Air Quality Standards, PM2.5 emissions, PM10 emissions, continuous measurements
Before about 1970, visibility was meant only to denote the human capability to detect, recognize, and identify objects by means of the human visual mechanism. During the 1970s, as energy development in the form of strip mines and coal-fired power plants with associated emissions…
Person:
Year: 2013
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: air quality, haze, public health, urban air pollution, urban visibility