Skip to main content

Displaying 1 - 25 of 43

[no description entered]
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Prescribed Fire
Region(s): Northwest
Keywords: air quality, broadcast burning, carbon dioxide, CO - carbon monoxide, clearcutting, coniferous forests, experimental areas, field experimental fires, fire intensity, firing techniques, fuel loading, fuel moisture, gases, heavy fuels, hydrocarbons, laboratory fires, logging, particulates, pollution, Pseudotsuga menziesii, site treatments, slash, smoke behavior, smoke management, Washington

[no description entered]
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: combustion

We present evidence that fire suppression may have contributed to the fungal decline of torreya (Torreya taxifolia). During the 1950's torreya suffered a catastrophic die-back. The torreya die-back was probably caused by needle pathogens induced through environmental stress.…
Person:
Year: 1991
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, fire frequency, fire suppression, fungi, light, microorganisms, needles, plant diseases, plant growth, seed germination, smoke effects, succession, Tall Timbers Research Station, threatened and endangered species (plants), topography, Torreya taxifolia, toxicity, wildfires

A major cooperative research effort between the Northern Region and the Intermountain Forest and Range Experiment Station is devoted to the use and effects of prescribed fire. Prescribed fires in logging slash have been scheduled during the entire available burning season. A…
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fuels, Planning, Prescribed Fire, Weather
Region(s): Northwest, Rocky Mountain
Keywords: air quality, biomass, distribution, elevation, fire intensity, fuel accumulation, fuel management, fuel moisture, fuel types, gases, logging, moisture, mountains, pollution, season of fire, seasonal activities, slash, sloping terrain, smoke behavior, temperature, topography, wilderness areas, wilderness fire management, wind

[no description entered]
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Hazard and Risk, Models, Prescribed Fire, Restoration and Rehabilitation
Region(s): Great Basin, Northwest
Keywords: air quality, biomass, CO - carbon monoxide, combustion, duff, fire hazard reduction, fire management, forest management, fuel loading, fuel management, fuel models, land use, natural areas management, nutrients, particulates, smoke effects, smoke management

The Minimum Acceptable Visibility (MAV) table was originally provided by the California Highway Patrol in response to an inquiry  relative to acceptable highway visibility reduction caused by smoke. The table was included in chapter two of the 1991 edition of the National Park…
Person:
Year: 1991
Type: Document
Source: FRAMES
Topic(s): Communications, Emissions and Smoke, Prescribed Fire, Safety, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: fire smoke, roads, road corridor, road, smoke effects, smoke-induced fog, superfog, smoke

Lightning causes one third of the 9000 wildfires that occur in Canada. Annually, these lightning-caused fires account for 90% of the area burned and cost Canadians at least 150 million dollars in suppression costs and values destroyed. Unlike the fires caused by human negligence…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Climate, Economics, Emissions and Smoke, Fire Behavior, Fire Prevention, Fuels, Models, Weather, Economics
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Abies spp., Acer, Betula, boreal forests, Canada, computer programs, duff, fine fuels, fire control, fire management, fire suppression, firebrands, flammability, fuel loading, fuel models, fuel moisture, fuel types, hardwood forests, humidity, ignition, lightning, lightning caused fires, lightning effects, litter, moisture, physics, Picea, pine forests, pine hardwood forests, pine, Pinus strobus, Populus tremuloides, precipitation, rate of spread, smoke behavior, statistical analysis, storms, temperature, wildfires, wind, woody fuels

From the summary ... ' In summary, the results of these large scale fire tests, conducted under marginal burning conditions, were negative; but, paradoxically, I find this very heartening, for we can now be much more confident in our predictions of fire behavior to be expected…
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Administration, Emissions and Smoke, Fire Behavior, Fuels, Hazard and Risk, Planning, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: catastrophic fires, chemistry, eucalyptus, fire intensity, fire whirls, flammability, fuel loading, ignition, litter, needles, nuclear winter, pine forests, Pinus ponderosa, rate of spread, surface fires, temperature, topography, tropical forests, US Forest Service, wilderness fire management, wildfires

Equations for predicting duff and large woody fuel (7.6+ cm) consumption are summarized. Dependent variables are duff depth reduction, percentage duff depth reduction, percentage mineral soil, large fuel diameter reduction, and percentage large fuel reduction. Opportunities to…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Prevention, Fuels, Hazard and Risk, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: Abies grandis, Artemisia tridentata, coniferous forests, conifers, duff, fire hazard reduction, fire management, fuel management, fuel models, grasses, mineral soils, pine forests, Pinus contorta, Pinus monticola, Pinus ponderosa, Pseudotsuga menziesii, wildfires, woody fuels

A prescribed fire was ignited near Chapleau, western Ontario, Canada, on the afternoon of August 10, 1989. The fire, covering approximately 400 ha, burned vigorously over a period of 3 hours, from 1400 to 1700 EDT, generating a plume cloud structure including a portion…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fire Behavior, Fuels, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Canada, distribution, field experimental fires, fire case histories, fire intensity, fire management, fuel loading, lightning, lightning effects, logging, Ontario, physics, site treatments, slash, smoke behavior, smoke effects, smoke management

After the serious smoke inversion conditions on the northern California and southern Oregon fires of 1987 and the Greater Yellowstone Area fires of 1988, the National Wildfire Coordinating Group (NWCG) hosted a conference - 'The Effect of Forest Fire Smoke on Firefighters'-in…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, northern California, Oregon, smoke behavior, smoke effects, Yellowstone National Park

Although burning was originally intended as a control measure for blind seed disease in perennial ryegrass, growers soon discovered the benefits of open field burning for other grass seed crops.
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fuels, Prescribed Fire, Weather
Region(s): Great Basin, Northwest
Keywords: agriculture, air quality, cropland fires, disturbance, fertilizers, field experimental fires, grass fires, grasses, Lolium, Oregon, perennial plants, plant diseases, plant growth, season of fire, seasonal activities, seed production, seedlings

[no description entered]
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fire Behavior, Models, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: computer programs, fire suppression, smoke behavior, smoke effects, smoke management, storms

This paper draws on comments from 89 reporters who covered the fires, on comments from 146 of their new sources, and on evaluations of network television coverage by four groups of wildfire experts. The research also incorporates a content analysis of stories about the fires…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: bibliographies, catastrophic fires, education, environmental impact analysis, environmental impact statements, fire case histories, fire control, fire management, fire suppression, land management, national parks, public information, wildfires, Yellowstone National Park

Computers are rapidly expanding into the urban fire safety area. This paper presents some social implications caused by the use of computers for fire safety databases, arson prediction programs, and fire simulation programs. In regards to the new technological advances this…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire History, Fire Prevention, Hazard and Risk, Models, Planning, Safety, Social Science, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: Arizona, computer programs, fire control, fire danger rating, fire equipment, fire management, fire suppression, human caused fires, incendiary fires, Massachusetts, rate of spread, wildfires

The western national parks managed by the Canadian Parks Service (CPS) are dominated by fire dependent forests of lodgepole pine, spruce and trembling aspen. Values at risk and high-intensity fire regimes limit the acceptability of unscheduled (lightning and unplanned man)…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Aviation, Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Logistics, Prescribed Fire, Fire Ecology
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: aerial ignition, age classes, Canada, coniferous forests, distribution, ecosystem dynamics, fire dependent species, fire injuries (plants), fire intensity, fire management, fire regimes, flame length, fuel types, headfires, human caused fires, ignition, lightning, lightning caused fires, mortality, national parks, Picea, pine forests, Pinus contorta, Pinus glabra, Populus tremuloides, prescribed fires (chance ignition)

Emissions from burning the residue following grass-seed harvest have been determined by both field and laboratory studies. Field studies have been conducted by Oregon State University engineers on actual grass plots. The laboratory studies were conducted by scientists at the…
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fuels, Prescribed Fire
Region(s): California, Northwest
Keywords: agriculture, air quality, annual plants, cropland fires, Dactylis glomerata, Festuca, fire management, grasses, Lolium multiflorum, Lolium perenne, Oregon, perennial plants, Poa, pollution

This report summarizes avaiable information on agricultural field burning in the Willamette Valley. Such information should be useful to all concerned with this practice and with the contribution it makes to air pollution in the state. The areas covered include background and…
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fuels, Prescribed Fire
Region(s): Northwest
Keywords: agriculture, air quality, cropland fires, fire management, grasses, Lolium perenne, Oregon, perennial plants, pollution

Current research on the effects of slash burning on air quality is concerned with the reduction or dispersal of gaseous emissions and particulates. Guidelines for accomplishing these goals are being developed. The use of other disposal methods is also under study, particularly…
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Ecology, Fuels, Models, Prescribed Fire, Regulations and Legislation, Weather
Region(s): California, Great Basin, Northwest
Keywords: air quality, combustion, fire management, fuel moisture, fuel types, gases, histories, logging, mountains, Oregon, particulates, pollution, slash, smoke behavior, smoke effects, smoke management, Washington, wildfires, wind

[no description entered]
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Economics, Emissions and Smoke, Planning, Wildland-Urban Interface (WUI)
Region(s): Alaska, Great Basin, Northwest
Keywords: air quality, catastrophic fires, disturbance, droughts, fire equipment, fire suppression, fishes, forest management, human caused fires, lightning caused fires, logging, multiple resource management, Picea glauca, post fire recovery, recreation, reproduction, rural communities, season of fire, smoke effects, soil erosion, watershed management, wildfires, wildlife management

[no description entered]
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Administration, Emissions and Smoke, Fire Behavior, Fire Effects, Fire Prevention, Fuels, Intelligence, Outreach, Planning, Prescribed Fire, Regulations and Legislation, Social Science, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: crowns, dead fuels, education, fire suppression, forest management, fuel management, general interest, Georgia, land management, litter, overstory, public information, smoke management, surface fires, understory vegetation

[no description entered]
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Prescribed Fire
Region(s): Northwest
Keywords: fire intensity, precipitation, smoke behavior, smoke effects, Washington, wildfires

[no description entered]
Person:
Year: 1969
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Weather
Region(s): Northwest
Keywords: precipitation, smoke behavior, smoke effects, Washington, wildfires

n this chapter we describe the results of airborne studies of smokes from 17 biomass fuel fires, including 14 prescribed fires and 3 wildfires, burned primarily in the temperate zone of North America between 34° and 49°N latitude. The prescribed fires were in forested lands…
Person:
Year: 1991
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: North America, trace gases, smoke particulates, biomass fires

A combined theoretical and experimental study has been performed of the behaviour of firebrands in a turbulent, swirling natural convection plume. For the theoretical treatment, firebrands were idealized as spheres of constant density, the burning rate a constant for each type…
Person:
Year: 1969
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: firebrand, plume, laboratory experiments