Skip to main content

Displaying 1 - 24 of 24

[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

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): 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

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

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

A study of smoke exposure at prescribed fires was done by the USDA Forest Service, Pacific Northwest Research Station and Radian Corporation between 1991 and 1994. This study was done to assess exposure to smoke among firefighters at prescribed fires in the Pacific Northwest.…
Person:
Year: 1994
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Monitoring and Inventory, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: FERA - Fire and Environmental Research Applications Team, smoke exposure

A smoke emissions production model (EPM) was developed by the USDA Forest Service, Pacific Northwest (PNW) Research Station about 10 years ago. Since then, the model has been coded into a computer module and integrated into a variety of other computer programs. The module, EPM,…
Person:
Year: 1994
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Monitoring and Inventory, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: broadcast burning, EPM - Emissions Production Model, FERA - Fire and Environmental Research Applications Team, smoke dispersion, smoke models, smoldering phase

PLUMP is a general-purpose, one-dimensional plume rise model for wildfire and prescribed fire planning. It calculates the characteristics of fire plumes, 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: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: PLUMP, plume modelling, lightning, clouds

A nylon tent designed for firefighters was placed in a smoky environment in a wind tunnel. The close knit fabric screened out 95 percent of the particulate matter but none of the gases in the smoke. There was no oxygen depletion in the tent when a person was in or out even…
Person:
Year: 1994
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: PM - particulate matter, firefighters, toxic emissions, sleeping quarters

We are developing a numerical wind model to simulate airflow near the ground at night over terrain typical of the Piedmont of the southeastern United States. The purpose is to improve understanding of night winds and provide more accurate prediction of smoke movement when wind…
Person:
Year: 1994
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: wind, drainage, fire models, fire weather, mountainous terrain, Piedmont, smoke behavior, smoke management

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: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, biomass, C - carbon, CO - carbon monoxide, char, chemical compounds, combustion, fire management, fuel management, gases, Pinus ponderosa, plant physiology, toxicity, volatilization, wildfires, wood, semi-volatile compounds, air toxics, smoldering combustion, biomass burning, ponderosa pine, chemical analysis, gas chromatography

We present estimates of nitrogen oxide (NOx) emission from worldwide biomass burning totaling ~13 Tg N yr-1 on a 1 degree longitude by 1 degree latitude grid. Roughly 80 percent of these emissions occur in the zone from 25N to 25 degrees S. The inventory presented here is…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fuels, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Africa, air quality, Asia, biomass, croplands, forest types, fuel types, grasslands, N - nitrogen, pollution, precipitation, rainforests, scrub, South America, Southeast Asia, tundra

It is possible to delimit the areas of the North, Central, and South America that are most susceptible to fire and would have been most affected by burning practices of early Americans. Areas amounting to approximately 155 x 105 km² are here designated as the most burnable part…
Person:
Year: 1994
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fire History, Fire Occurrence, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: agriculture, biomass, broadcast burning, C - carbon, Canada, Central America, charcoal, chemical elements, disturbance, European settlement, fire frequency, grasslands, human caused fires, land management, Mexico, Native Americans, particulates, presettlement fires, smoke effects, South America, topography