Type
Topic
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Displaying 626 - 650 of 5834
Twenty papers are presented from the conference convened jointly by the International Boreal Forest Research Association and the Bonanza Creek Long Term Ecological Research Program. A further 9 papers will be published in a special issue of Mitigation and Adaptation Strategies…
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Effects
Region(s): Alaska, International
Keywords: boreal forest, Canada, fire, productivity, regeneration, succession, carbon emissions, climate change, disturbance regime, global change, peatland, permafrost
Fire and harvesting are important disturbances in the boreal forest, driving net biome production. Measurements of net ecosystem production (NEP) over mature forest stands have been made from flux towers for about a decade at the Boreal Ecosystem Research and Monitoring Sites (…
Person:
Year: 2006
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels
Region(s): International
Keywords: boreal forest, Canada, carbon flux, disturbance, age classes, energy flow, water balance, Saskatchewan, C - carbon, deciduous forests, diameter classes, ecosystem dynamics, energy, evapotranspiration, forest management, logging, size classes, soil moisture, soil temperature, water, wildfires
Fire in the boreal forest renews forest stands and changes the ecosystem properties. The successional stage of the vegetation determines the radiative budget, energy balance partitioning, evapotranspiration and carbon dioxide flux. Here, we synthesize energy balance measurements…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Ecology, Fire Effects, Fire History
Region(s): Alaska, International
Keywords: boreal forest, Canada, eddy-covariance method, forest fire, albedo, brown ratio, climate change, energy balance, evapotranspiration, radiation
Recent CO2 flux measurements from towers and aircraft (net ecosystem exchange by eddy covariance) and remote sensing/modeling (net primary productivity - NPP) following fire show that the regenerating boreal forest in western Canada has a low initial flux that increases with…
Person:
Year: 2003
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects, Mapping, Models
Region(s): Alaska, International
Keywords: boreal forest, Canada, carbon flux, eddy-covariance method, fire, regeneration, net ecosystem exchange, net primary productivity
A recent analysis indicates that Canadian forest fires have released an average of 27 Mt (1012 g) of carbon annually over the past four decades (Amiro et al. 2001a). These emissions are caused by direct combustion. About an equal additional amount of carbon may also be lost…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects
Region(s): Alaska, International
Keywords: biodiversity, Canada, fire, fire suppression, boreal, carbon emissions, climate change, Kyoto Protocol
Direct emissions of carbon from Canadian forest fires were estimated for all Canada and for each ecozone for the period 1959-1999. The estimates were based on a database of large fires for the country and calculations of fuel consumption for each fire using the Canadian Forest…
Person:
Year: 2001
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Prevention, Fuels, Hazard and Risk, Weather
Region(s): International
Keywords: boreal forests, Canada, fuel consumption, carbon emissions, carbon sink, taiga, air quality, arthropods, C - carbon, CO2 - carbon dioxide, climatology, coniferous forests, crown fires, deciduous forests, disturbance, ecosystem dynamics, energy, fire danger rating, fire injuries (animals), fire management, fire size, fire suppression, fuel loading, fuel management, fuel types, gases, insects, particulates, pine forests, Pinus banksiana, Pinus contorta, Pinus ponderosa, Pinus resinosa, Pinus strobus, post-fire recovery, Pseudotsuga menziesii, Douglas-fir, season of fire, statistical analysis, succession, wildfires
Fire is the dominant stand-replacing agent in the Canadian boreal forest (including Jack pine, Pinus banksiana, and black spruce, Picea mariana), but few quantitative measurements are available on the micrometeorological effects of fire. Airborne flux measurements during the…
Person:
Year: 1999
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Mapping, Monitoring and Inventory
Region(s): International
Keywords: boreal forest, Canada, BOREAS - Boreal Ecosystem-Atmosphere Study, CO2 - carbon dioxide, energy balance, evapotranspiration, Manitoba, net radiation, Saskatchewan, C - carbon, crown fires, energy, GIS - geographic information system, heat, landscape ecology, overstory, radiation, soil temperature, statistical analysis, succession, surface fires, temperature, wildfires
A number of previous modeling studies have assessed the implications of projected CO2-induced climate change for future terrestrial ecosystems. However, although current understanding of possible long-term response of vegetation to elevated CO2 and CO2-induced climate change in…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: boreal forest, climate change, GCMs - general circulation models, LAI - leaf area index, tropical forest, fire emissions, global potential natural vegetation distribution, HadCM climate model, NPP - net primary production, SRESA1B 2100 climate model
Biomass consumption and carbon release rates during the process of forest clearing by fire in five test plots are presented and discussed. The experiments were conducted at the Caiabi Farm, near the town of Alta Floresta, state of Mato Grosso, Brazil, in five square plots of 1…
Person:
Year: 2001
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fuels
Region(s): International
Keywords: biomass consumption, carbon release, FERA - Fire and Environmental Research Applications Team, Brazil
A numerical model for the prediction of the spread rate and intensity of forest crown fires has been developed. The model is the culmination of over 20 years of previously reported fire modelling research and experiments; however, it is only recently that it has been formulated…
Person:
Year: 2004
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fuels, Hazard and Risk, Models, Prescribed Fire, Weather
Region(s): Alaska, International
Keywords: Canada, crown fires, jack pine, Pinus banksiana, rate of spread, black spruce, ICFME - International Crown Fire Modeling Experiment, Picea mariana, Northwest Territories, boreal forests, coniferous forests, dead fuels, duff, experimental fire, fire danger rating, fire exclusion, fire management, fire resistant plants, flame length, fuel management, fuel loading, fuel moisture, heat, ignition, photography, shrubs, size classes, stand characteristics, statistical analysis, surface fuels, wildfires, wind
The continued supply of our Nation's paper and other wood products increasingly depends on wood fiber produced from forests in the Southern United States. Approximately 200 million acres (81 million ha) of forest are within 13 Southern States-roughly south of the Ohio River and…
Person:
Year: 2007
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models
Region(s): Southern
Keywords: smoke management
Smoke data were collected from two instrumented plots located on the Francis Marion National Forest in South Carolina during prescribed burns on Feb. 12, 2003. One of the plots had been subjected to mechanical chipping. Particulate matter (PM2.5) data analyzed by gravimetric…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Prescribed Fire
Region(s): Southern
Keywords: PM - particulate matter, smoke measurements, CO - carbon monoxide
Smoke from wildland burning in association with fog has been implicated as a visibility hazard over roadways in the southern United States. A project began in 2002 to determine whether moisture released during the smoldering phases of southern prescribed burns could contribute…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety, Weather
Region(s): Southern
Keywords: ground fog, smoke management, smoke measurements, visibility, highway accidents
Smoke from both prescribed fires and wildfires can, under certain meteorological conditions, become entrapped within shallow layers of air near the ground at night and get carried to unexpected destinations as a combination of weather systems push air through interlocking ridge-…
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Weather
Region(s): Southern
Keywords: drift smoke, smoke behavior, visibility, drainage winds, nocturnal smoke, smoke entrapment
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
Because of the importance of emissions from fires in biomass fuels globally, we developed a highly portable Fire Atmosphere Sampling System (FASS) for sampling smoke emissions. Emissions were sampled with the FASS packages from a variety of fuel and combustion conditions in…
Person:
Year: 1991
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Models, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Canada, smoke emissions, biomass consumption, sampling, smoke measurements, Brazil, FASS - Fire Atmosphere Sampling System, air quality, biomass, boreal forests, CO2 - carbon dioxide, combustion, fire management, fire weather, fuel types, gases, hardwood forest, heat, particulates, radiation, sampling, savannas, smoke behavior, smoke management, temperature, tropical forest, wind
Description not entered.
Person:
Year: 1991
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Planning
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Canada, fire, smoke impact, atmospheric environmental impact study
In preparing for this symposium, discussion inevitably turned to the many facets of wildfire in the subarctic which should be considered - material, philosophical, economic. Is fire detrimental to the environment? 'Are the practices which you employ in controlling wildfires (…
Person:
Year: 1971
Type: Document
Source: FRAMES, TTRS
Topic(s): Administration, Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Prevention, Fuels, Logistics, Planning, Prescribed Fire, Regulations and Legislation, Safety
Region(s): Alaska, International
Keywords: boreal forest, Canada, ecology, natural resources, wildlife, smoke effects, rehabilitation, revegetation, taiga, Yukon, air quality, burning permits, Calamagrostis, community ecology, ecosystem dynamics, fire control, Eriophorum vaginatum, fire management, fire management planning, fire suppression, firefighting personnel, flowering, grasses, herbaceous vegetation, land use, litter, Native Americans, particulates, plant communities, plant growth, pollution, roots, seedlings, soil moisture, tundra, waterfowl, wildlife habitat management, wildfires, woody plants
A total area of 26,669 km2 (6.59 million acres) burned from forest fires in Alaska during the summer of 2004, setting a new record in the 50-year database. The unusually warm and dry weather was a predominant factor for the wildfire season in which it was the warmest on record…
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects, Weather
Region(s): Alaska
Keywords: air quality, fire weather, particulates, 2004 fire season, climatology, drought, forest fires
Forest Service research has developed a set of tools to estimate fuel consumption and resulting emissions from wildland fire. These two models, CONSUME (Ottmar et al., 1993) and EPM (Emissions Production Model, McKenzie et al., 2002 and Sandberg and Peterson, 1984) have formed…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fuels, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: BlueSky Modeling Framework, CONSUME, emission estimates, EPM - Emissions Production Model, FERA - Fire and Environmental Research Applications Team, smoke models, smoke estimation tools, MM5 - Mesoscale Model generation 5, smoke forecasting, CSEM - Community Smoke Emissions Model
Description not entered.
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, International
Keywords: Siberia
The objective of this report is to summarize the current state-of-knowledge of the effects of forest burning on the air resource, and to define research questions of high priority for the management of smoke from prescribed and wild fires. Our purpose was to provide background…
Person:
Year: 1979
Type: Document
Source: FRAMES, 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: air quality, smoke impacts, smoke management, wildfires
To assess the extent of agricultural and wildland burning in the tropical forest and savanna of central Brazil, a multi-year research effort is underway. This research quantifies the area of tropical forest and cerrado (savanna) burned and the magnitude of fire emissions to the…
Person:
Year: 2000
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence
Region(s): International
Keywords: fire management, fire return interval, Brazil, tropical savannas
Fires can be catastrophic, but only when the weather permits. Predicting the weather more than a few hours into the future with accuracy, precision and reliability is an on-going challenge to researchers. Accurate and precise forecasting for more than a few hours into the future…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Communications, Economics, Emissions and Smoke, Fire Behavior, Fire Effects, Hazard and Risk, Intelligence, Logistics, Mapping, Models, Monitoring and Inventory, Outreach, Planning, Regulations and Legislation, Safety, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: forecasting, FCAMMS - Fire Consortia for Advanced Modeling of Meteorology and Smoke, air quality, climatology, computer program, distribution, ecology, education, fire control, fire danger rating, fire management, firefighting personnel, JFSP - Joint Fire Science Program, National Fire Plan, remote sensing, smoke behavior, smoke effects, smoke management, statistical analysis, US Forest Service, weather observations, wilderness fire management
Nine measures of atmospheric surface moisture are tested for statistical relationships with fire size and number of fires using data from the Great Lakes region of the United States. The measures include relative humidity, water vapor mixing ratio, mixing ratio deficit, vapor…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Weather
Region(s): Eastern
Keywords: fire danger, fire weather, humidity