Type
Topic
Region
Year
Displaying 51 - 60 of 60
Over the past twenty years, risk communication researchers and practitioners have learned some lessons, often at considerable personal price. For the most part, the mistakes that they have made have been natural, even intelligent ones. As a result, the same pitfalls may tempt…
Person:
Year: 1995
Type: Document
Source: FRAMES
Topic(s): Communications, Emissions and Smoke, Hazard and Risk
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: environment, risk communication, risk management, risk perception
Burned and unburned sites (4 ha each) of black and white spruce in interior Alaska were studied in 1993 and 1994 within and adjacent to an area burned by wildfire in 1990. The main purpose of the research was to quantify fuel consumption and carbon release during the fire.…
Person:
Year: 1995
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Ecology, Fire Effects, Fuels
Region(s): Alaska
Keywords: carbon flux, consumption, wildfire, boreal, global warming, taiga
An improved method to estimate the amounts of carbon released during fires in the boreal forest zone of Alaska in 1990 and 1991 is described. This method divides the state into 64 distinct physiographic regions and estimates areal extent of five different land covers: two forest…
Person:
Year: 1995
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models
Region(s): Alaska
Keywords: fire, AVHRR images, carbon release, cover types, stand age distribution
We have used the high optical absorptivity of urban and source particulates to trace their ‘graphitic” component. The optical absorptivity and the particu late carbon loading show a strong correlation. Analyses of the data indicate that primary soot emissions compose a major…
Person:
Year: 1980
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke
Region(s): California, Eastern, Great Basin
Keywords: aerosols, air quality, C - carbon, Illinois, N - nitrogen, ozone, particulates, soot, statistical analysis, S - sulfur, urban habitats
Flexible polyurethane foams that are char formers are capable of smoldering combustion. The smoldering process is an oxygen-limited, heterogenous oxidation process that slowly transforms the foam to a brittle, black replica of itself; for the foam examined here, the resultant…
Person:
Year: 1980
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fuels, Models
Region(s): Eastern
Keywords: char, chemistry, combustion, computer programs, convection, energy, foam, gases, heat, ignition, New England, New Jersey, N - nitrogen, radiation, smoke behavior, temperature
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Person:
Year: 1980
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fuels, Prescribed Fire
Region(s): Southern
Keywords: air quality, chemistry, foliage, forest management, fuel types, heat, heat effects, Ilex glabra, laboratory fires, leaves, low intensity burns, natural resource legislation, needles, N - nitrogen, organic soils, pine, Pinus elliottii, Pinus taeda, pollution, sampling, Serenoa repens, smoke effects, smoke management, statistical analysis, wildfires
As part of the FOS-DECAFE experiment at Lamto (Ivory Coast) in January 1991, various aerosol samples were collected at ground level near prescribed fires or under local background conditions, to characterize the emissions of particulate matter from the burning of savanna…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Prescribed Fire
Region(s): International
Keywords: aerosols, Africa, air quality, backing fires, biomass, boreal forests, C - carbon, combustion, distribution, forest types, climate change, headfires, ignition, Ivory Coast, particulates, pollution, K - potassium, savannas, slash, tropical forests, wildfires
In order to estimate the production of charcoal and the atmospheric emissions of trace gases volatilized by burning we have estimated the global amounts of biomass which are affected by fires. We have roughly calculated annual gross burning rates ranging between about 5 Pg and 9…
Person:
Year: 1980
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Prescribed Fire, Restoration and Rehabilitation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: carbon flux, carbon budget, gas emissions, biomass burning, air quality, biogeochemical cycles, biogeography, biomass, boreal forests, C - carbon, carbon dioxide, charcoal, dead fuels, deforestation, ecosystem dynamics, forestation, gases, grazing, land use, livestock, moisture, organic matter, savannas, season of fire, statistical analysis, tropical forest, volatilization, wildfires
Fire strongly influences carbon cycling and storage in boreal forests. In the near-term, if global warming occurs, the frequency and intensity of fires in boreal forests are likely to increase significantly. A sensitivity analysis on the relationship between fire and carbon…
Person:
Year: 1995
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Occurrence, Models
Region(s): Alaska, International
Keywords: boreal forest, fire, carbon cycle, climate change, global warming, biomass, Canada, C - carbon, distribution, fire frequency, fire intensity, fire models, fire regimes, nutrient cycling, soil nutrients
The mass burning rates of several polymer systems, including polycarbonates, polysystrenes, polyethylenes, and wood were determined for steady-state combustion in an apparatus similar to that constructed at Factory Mutual Research. The work was undetaken to determine the…
Person:
Year: 1980
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Hazard and Risk, Models
Region(s): Eastern
Keywords: burning intervals, char, chemical elements, combustion, fire control, flammability, gases, heat, Michigan, O - oxygen, wood