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Soil was exposed to red phosphorous/butyl rubber (RP/BR) aerosols at various relative humidities in a recirculating environmental wind tunnel. Soil microbial and enzymatic activities were measured immediately after exposure and periodically thereafter for 56 days. The…
Person:
Year: 1988
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: agriculture, chemistry, cropland fires, heat effects, humidity, microorganisms, nutrient cycling, pH, pollution, post fire recovery, smoke effects, soil organisms, soils, statistical analysis, toxicity, wildfires, wind

[no description entered]
Person:
Year: 1988
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Hazard and Risk, Models, Planning, Prescribed Fire, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: broadcast burning, duff, fire danger rating, fire hazard reduction, fire injuries (plants), fire management, fire regimes, fire suppression, fuel models, fuel moisture, fuel types, heat effects, humidity, litter, moisture, mopping up, multiple resource management, precipitation, smoke behavior, smoke effects, soil temperature, statistical analysis, temperature, weather observations, woody plants

(1)The behaviour of the August 1936 Galatea fire in the foothills of the Canadian Rocky Mountains was reconstructed with respect to the rate of spread, frontal-fire intensity and fuel consumption, and illustrates that tree mortality, seed dispersal distance into the burn and…
Person:
Year: 1988
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Occurrence, Fire Prevention, Fuels, Intelligence, Models, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Abies lasiocarpa, Alberta, Canada, conifers, crown fires, duff, elevation, fine fuels, fire adaptations (plants), fire case histories, fire frequency, fire intensity, fire size, fire suppression, fuel appraisal, fuel moisture, fuel types, habitat types, ignition, lightning caused fires, litter, moisture, montane forests, mortality, mountainous terrain, mountains, national parks, organic matter, overstory, Picea, Picea engelmannii, pine, Pinus contorta, plant growth, post fire recovery, radiation, rate of spread, regeneration, reproduction, sampling, seed dispersal, seed germination, site treatments, smoke behavior, species diversity (plants), statistical analysis, subalpine forests, topography, trees, water, wildfires, wind

[no description entered]
Person:
Year: 1988
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: conifers, flammability, hardwoods, heat, heat effects, laboratory fires, Ohio, Pseudotsuga menziesii, Quercus rubra, wood, wood properties

[no description entered]
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: air quality, ash, Asia, biomass, boreal forests, Canada, carbon dioxide, CO - carbon monoxide, chaparral, China, ecosystem dynamics, fire case histories, fire management, forest management, gases, greenhouse gases, human caused fires, CH4 - methane, ozone, post fire recovery, Russia, statistical analysis, tropical forests, wetlands, woody fuels

The National Weather Service Fire Weather Program provides weather forecasting and meteorological support services to state and federal wildland fire management agencies. An Intergovernmental Fire Weather User's Summit, sponsored by the National Weather Service (NWS) and the…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fire Prevention, Models, Planning, Prescribed Fire, Weather, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, education, fire danger rating, fire equipment, fire exclusion, fire management, fire suppression, land management, smoke management, US Forest Service, wilderness fire management, wildfires

Created through the Wildfire Disaster Recovery Act of 1989 (PL 101-286), in response to the destructive western fire season of 1987 and the Yellowstone fires of 1988, the Commission was asked to consider the environmental and economic effects of disastrous wildfires through…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Administration, Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Prevention, Fuels, Hazard and Risk, Intelligence, Outreach, Planning, Regulations and Legislation, Social Science, Economics, Fire Ecology, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: agriculture, air quality, arid regions, biomass, catastrophic fires, chaparral, ecosystem dynamics, education, erosion, fire case histories, fire exclusion, fire hazard reduction, fire intensity, fire management, fire protection, fire regimes, fire suppression, fishes, forest management, forest products, fuel accumulation, fuel management, general interest, hardwood forests, histories, Idaho, land management, land use, liability, logging, mosaic, natural resource legislation, Nevada, nongame birds, Oncorhynchus, Oregon, pine forests, Pinus ponderosa, public information, rangelands, small mammals, smoke management, Strix occidentalis, thinning, threatened and endangered species (animals), understory vegetation, watershed management, West Virginia, wildfires, wildlife habitat management

The National Weather Service Fire Weather Program provides weather forecasting and meteorological support services to state and federal wildland fire management agencies. An Intergovernmental Fire Weather User's Summit, sponsored by the National Weather Service (NWS) and the…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Climate, Emissions and Smoke, Mapping, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, biomass, ecosystem dynamics, fire exclusion, fire frequency, fire management, fire suppression, forest management, land management, particulates, Pinus, smoke management, species diversity (plants), statistical analysis, US Forest Service, wildfires

Pre-industrial human activities which changed the atmospheric greenhouse gas or aerosol loading, or which modified the properties of the earth's surface, such as albedo, roughness, or vegetation cover, had the potential to modify the regional or even global climate. The primary…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fire History, Fuels, Models, Prescribed Fire, Restoration and Rehabilitation
Region(s): Eastern, Northern Rockies, Rocky Mountain, Southwest, International
Keywords: agriculture, air quality, biomass, cover, deforestation, Europe, European settlement, fuel management, climate change, human caused fires, India, presettlement fires, regeneration, topography

Large, free-burning fires do not burn steadily. As most experienced fire personnel know, fire behavior varies significantly with time. It frequently can be described as pulsating. This pulsing is caused by a process called layer-replacement. As the burning creates a zone of hot…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fire Behavior, Fuels, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: combustion, convection, experimental fires, gases, smoke behavior, wilderness fire management

Over the past four years scientists have cooperatively monitored fire behavior and smoke chemistry, on a number of large prescribed fires in the Province of Ontario. Primary cooperating agencies include Forestry Canada, the United States Forest Service, the National Aeronautics…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Administration, Aviation, Economics, Emissions and Smoke, Fire Behavior, Logistics, Models, Planning, Prescribed Fire, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: aerial ignition, British Columbia, Canada, chemistry, coniferous forests, convection, energy, fire management, forest management, Ontario, pine forests, sampling, smoke behavior, US Forest Service, wind

Planning prescribed fires for optimal periods which results in emissions reduction is an extremely useful air quality management technique. New information suggests that one more useful tool in smoke management may involve using the capacity of the atmosphere to remove smoke…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fuels, Prescribed Fire, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Abies spp., air quality, Betula papyrifera, biomass, Canada, coniferous forests, fuel moisture, heat, logging, moisture, pine forests, Pinus banksiana, Populus, precipitation, Pseudotsuga menziesii, slash, smoke behavior, smoke management, Tsuga, wilderness fire management, wildfires

The OCTET modeling system has been designed to simulate the atmospheric dynamics, microphysics and scavenging above hypothetical large city fires with energy release rates on the order of 10-100kW/m2 over areas of tens to hundreds of square kilometers. It simulates the three-…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: aerosols, Canada, coniferous forests, energy, fire management, forest management, logging, Ontario, Picea, pine forests, Pinus banksiana, Pinus contorta, precipitation, slash, smoke behavior, weather observations

Electric field measurements, combined with lightning location data, demonstrate that the plume clouds from large fires can be charged and can generate lightning discharges. The results of measurements made on a prescribed burn show that the charge distribution is a positive…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Models, Prescribed Fire, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Canada, distribution, fire management, forest management, lightning, lightning effects, logging, Ontario, smoke effects, storms, weather observations

The Doppler lidar of NOAA/ERL's Wave Propagation Laboratory (WPL) observed a prescribed forest fire that was ignited in the township of Battersby, Ontario, Canada, on 12 August 1988. During the first hour of the fire the lidar saw the smoke column rise nearly straight up to a…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Prescribed Fire, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Canada, distribution, fire management, light, Ontario, particulates, remote sensing, smoke behavior, smoke management, wind

A major problem with weather data in complex terrain is temporal and spatial interpolation. The British Columbia Forest Service, through the services of Atmospheric Dynamics Corporation, has adapted a meso-scale weather model to provide hourly predictions out to 4.5 days for a…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fire Behavior, Fuels, Mapping, Models, Planning, Prescribed Fire, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: British Columbia, Canada, rate of spread, smoke management, temperature, wilderness fire management, wildfires, wind

PLUMP is a general -purpose, one-dimensional plume rise model for wildfire and prescribed fire planning. It calculates the characteristics of fire plu8mes, including vertical velocity, water content, excess temperature, rain, and ice. The model can also be used to determine the…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Models, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: fire management, lightning, smoke behavior, smoke management, temperature, water, wildfires

[no description entered]
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fuels, Models, Prescribed Fire
Region(s): Great Basin, Northern Rockies, International
Keywords: Abies lasiocarpa, air quality, boreal forests, British Columbia, Canada, computer programs, coniferous forests, decay, decomposition, diameter classes, droughts, ecosystem dynamics, energy, fire management, fuel loading, fuel management, fuel moisture, Georgia, Idaho, logging, Palmaceae, Picea glauca, Pseudotsuga menziesii, slash, statistical analysis, Thuja plicata, Tsuga heterophylla, woody fuels, woody fuel consumption, model testing, CONSUME model, interior cedar-hemlock forests

[no description entered]
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Aquatic, Climate, Emissions and Smoke, Models, Restoration and Rehabilitation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Africa, agriculture, air quality, Asia, biomass, chemistry, deforestation, Europe, gases, climate change, habits and behavior, insects, land use, Middle East, Oceania, savannas, soil management, soil nutrients, soils, wetlands, animal excreta, animals, aquatic sources, arable lands, biomass burning, CH4 - methane, CO - carbon monoxide, deforestation, emission, landfills, N2O - nitrous oxide, rice cultivation, sewage, soils, termites, trace gases, wetlands

The performance of internal combustion engines used in fire fighting equipment can be affected by the fireground ambient conditions. Both gasoline (SI) and diesel (CI) engines can suffer significant power losses due to high temperatures and reduced oxygen in the intake air…
Person:
Year: 1994
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Prevention
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: forest fire, fireground, bushfire, fire engines, internal combustion engine

Total particulate matter (PM) emissions were estimated for recent fires (1979-1990) and the presettlement period (prior to 1935) in the Selway-Bitterroot Wilderness (SBW) in Idaho and Montana. Recent period emissions were calculated by 10-day periods for surface fire and crown…
Person:
Year: 1994
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire History, Fire Occurrence, Models
Region(s): Northern Rockies
Keywords: air quality, fire regimes, Idaho, Montana, Selway-Bitterroot Wilderness, Abies grandis, coniferous forests, crown fires, fire exclusion, fire management, fire suppression, mountainous terrain, Larix lyallii, Picea engelmannii, pine forests, Pinus albicaulis, Pinus contorta, lodgepole pine, chance ignition prescribed fires, presettlement fires, Pseudotsuga menziesii, Douglas-fir, subalpine forests, wilderness fire management

A model for the plume above a line fire in a cross wind is constructed. This problem is shown to reduce to numerically solving a system of 6 coupled ordinary differential equations for given initial conditions that depend upon the fire characteristics. The model is valid above…
Person:
Year: 1994
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: plume trajectories, cross wind, plume temperature, plume velocity, plume width

Airborne measurements have been made in the smokes from large fires of standing coniferous trees and logging debris, standing chaparral, fallen jack pine, and wheat stubble. Panicle emission factors, particle size distributions, optical properties of the smokes, and trace gas…
Person:
Year: 1988
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke
Region(s): California, Northern Rockies, Northwest, International
Keywords: Canada, PM - particulate matter, biomass burning, airborne measurements

The major condensible products (-45ºC) from smoldering combustion of ponderosa pine sapwood have been identified and quantified. Methylene chloride extracts of the condensate, as well as nonextracted condensate, were analyzed by gas chromatography/mass spectrometry (GC/MC). Non-…
Person:
Year: 1994
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: Pinus ponderosa, ponderosa pine, smoldering combustion, biomass burning, semi-volatile compounds, air toxics

Measurements in the plumes from seven forest fires show that the concentrations of NH3 were considerably in excess of ambient values. Calculation of NH3 emissions from the fires, based on the ratio of NH3/CO in the plumes and emissions of CO from biomass burning, suggest that…
Person:
Year: 1988
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke
Region(s): California, Northern Rockies, Northwest, International
Keywords: smoke measurements, biomass burning, fire emissions, smoke plumes, airborne measurements, ammonia