Type
Topic
Region
Year
Displaying 351 - 375 of 5834
Estimates of greenhouse-gas emissions from deforestation are highly uncertain because of high variability in key parameters and because of the limited number of studies providing field measurements of these parameters. One such parameter is burning efficiency, which determines…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fuels
Region(s): International
Keywords: carbon, charcoal, biomass, deforestation, global warming, greenhouse gas emissions, Amazon, Brazil, burning efficiency, rainforest, biomass burning, cutting, decay, deciduous forests, diameter classes, fire management, forest management, forest types, fuel management, climate change, humidity, leaves, litter, logging, population density, sampling, tropical forest, vines
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
The aim of this study was to assess the effects on combustion characteristics, and their consequences on nutrient losses, of (1) the change in load and packing ratio of the fuel bed, and (2) the change in fuel moisture content. Eighty-one experimental burns were carried out, on…
Person:
Year: 1995
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Monitoring and Inventory
Region(s): International
Keywords: fireline intensity, fuel loading, fuel moisture content, fuel consumption, Pinus pinaster, laboratory experiments, particulate and volatile nutrient losses, laboratory fires, air quality, combustion, fire intensity, fire management, France, fuel moisture, Mediterranean habitats, moisture, needles, nutrients, pine forests, Pinus, statistical analysis, temperature
The extent of biomass burning in the Northern Territory, Australia, during 1992 (a year of low fire activity) was estimated using NOAA-AVHRR satellite imagery and was subsequently used to calculate the emission of gaseous compounds from biomass burning for that year. A total of…
Person:
Year: 1995
Type: Document
Source: FRAMES, TTRS
Topic(s): Economics, Emissions and Smoke, Mapping
Region(s): International
Keywords: remote sensing, NOAA-AVHRR, Australia, trace gas emissions, biomass burning, Northern Territory of Australia, Australian tropics, aerosol emissions, Acacia spp., arid regions, biomass, Callitris spp., carbon dioxide, CO - carbon monoxide, eucalyptus, fire frequency, fire management planning, gases, grass fire, grasslands, Melaleuca, mosaic, Northern Territory of Australia, perennial plant, season of fire, shrublands, tropical forest, understory vegetation
The mesoscale meteorological model MEMO was applied to a real fire situation, which occurred in the central area of Portugal, with a very complex topography. In order to numerically provide boundary values at a higher temporal and spatial resolution, a one-way nesting technique…
Person:
Year: 1996
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Mapping, Models, Prescribed Fire, Weather
Region(s): International
Keywords: forest fire, Portugal, wind simulations, mesoscale model, complex terrain, air quality, air temperature, biogeography, climatology, Foehn winds, forest management, gases, humidity, Mediterranean habitats, nesting, rate of spread, sampling, statistical analysis, topography, wildfires, wind
A computational procedure for predicting the buoyant plume above a line fire in a cross wind is reported. The present model takes into account the interaction between the plume and the surrounding flow by solving the two-dimensional equations for the conservation of mass,…
Person:
Year: 1999
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: cross wind, fire impact modeling, buoyant plume
A simplified physical model for the steady-state propagation of an infinite fire front through a uniform forest fuel bed in still air is derived from a mechanistic approach that considers a forest fire as a compressible, reactive and radiative flow through a multiphase medium.…
Person:
Year: 1999
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Models
Region(s): International
Keywords: forest fire, slope, physical models, convective effects, combustion, convection, Europe, fire management, France, fuel loading, fuel management, fuel models, Pinus halepensis, Pinus pinaster, radiation, rate of spread, sloping terrain, statistical analysis, surface fuels
New estimates of greenhouse gas emissions from Canadian forest fires were calculated based on a revised model for fuel consumption, using both the fire fuel load and the Drought Code of the Canadian Forest Fire Weather Index System. This model was applied to future climate…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fire Prevention, Fuels, Models, Prescribed Fire, Weather
Region(s): International
Keywords: boreal forests, Canada, greenhouse gas emissions, fuel consumption, greenhouse gases, air quality, biomass, C - carbon, CO2 - carbon dioxide, CO - carbon monoxide, cover, drought, fire hazard reduction, fire management, fire size, forest management, fuel loading, fuel management, fuel types, gases, N - nitrogen, particulates, taiga, wildfires
In many forest types, over half of the total stand biomass is located in the forest floor. Carbon emissions during wildland fire are directly related to biomass (fuel) consumption. Consumption of forest floor fuel varies widely and is the greatest source of uncertainty in…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Prevention, Fuels, Models
Region(s): Alaska, International
Keywords: boreal forest, Canada, forest floor, biomass consumption, carbon emissions, fuel consumption, air quality, Betula papyrifera, biomass, carbon, coniferous forests, drought, duff, experimental fire, fire hazard reduction, fire management, forest management, forest types, fuel loading, fuel management, fuel moisture, fuel types, Picea glauca, Pinus banksiana, Populus tremuloides, statistical analysis, understory vegetation, wildfires
The United States Environmental Protection Agency (EPA) will implement new regulations for the management of atmospheric particulate matter 2.5 µm and less in diameter (PM2.5), tropospheric ozone, and regional haze in the next few years. These three air quality issues relate…
Person:
Year: 2001
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire, Regulations and Legislation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: smoke management, PM2.5 emissions, air quality regulations
Fire modeling and information system technology play an important supporting role in fuel and fire management. Modeling is used to examine alternative fuel treatment options, project potential ecosystem changes, and assess risk to life and property. Models are also used to…
Person:
Year: 2001
Type: Document
Source: FRAMES, TTRS
Topic(s): Communications, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Hazard and Risk, Intelligence, Mapping, Models, Monitoring and Inventory, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: fuel models, wildland fire, fire spread, fuel management, air quality, biomass, catastrophic fires, computer program, crown fires, ecosystem dynamics, erosion, fire injuries (plants), evolution, fire management, flame length, fuel loading, fuel types, GIS - geographic information system, mineral soil, ignition, rate of spread, remote sensing, mortality, surface fires, season of fire, thinning, water quality, wildfires, wildlife habitat management
Attitudes and policies concerning wildland fire, fire use, and fire management have changed greatly since early European settlers arrived in North America. Active suppression of wildfires accelerated early in the 20th Century, and areas burned dropped dramatically. In recent…
Person:
Year: 2001
Type: Document
Source: FRAMES, TTRS
Topic(s): Administration, Communications, Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Occurrence, Fire Prevention, Fuels, Hazard and Risk, Intelligence, Mapping, Models, Monitoring and Inventory, Planning, Prescribed Fire, Regulations and Legislation, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: JFSP - Joint Fire Science Program, fire policy, research needs, fuel management, air quality, ecosystem dynamics, fire frequency, fire hazard reduction, fire intensity, fire management, fire management planning, fire models, fire regimes, fire suppression, fire weather, fuel loading, GIS - geographic information system, fuel moisture, remote sensing, season of fire, site treatments, smoke management, vegetation surveys, wildfires
An Autonomous Fire Detector (AFD) is a miniature electronic package combining position location capability [using the Global Positioning System (GPS)], communications (packet or voice-synthesized radio), and fire detection capability (thermal, gas, smoke detector) into an…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Communications, Economics, Emissions and Smoke, Fire History, Fire Prevention, Intelligence, Logistics, Mapping, Models, Monitoring and Inventory, Prescribed Fire, Safety, Weather, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: remote sensing, fire detection, fire monitoring, field systems, local fire detection, AFD - Autonomous Fire Detector , CO - carbon monoxide, computer program, fire equipment, fire management, fire suppression, fire weather, firefighting personnel, GPS - global positioning system, wildfires, wind
The feasibility and fundamentals of forest fire detection by smoke sensing with single-wavelength lidar are discussed with reference to results of 532-nm lidar measurements of smoke plumes from experimental forest fires in Portugal within the scope of the Gestosa 2001 project.…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Communications, Emissions and Smoke, Fire Prevention, Intelligence, Mapping, Models, Monitoring and Inventory
Region(s): International
Keywords: remote sensing, Portugal, Gestosa, fire management, fire suppression, smoke behavior, smoke management, statistical analysis, wildfires
Fire regimes were reconstructed from fire-scarred trees on five large forested study sites (135-810 ha) on the North and South Rims at Grand Canyon National Park. Adequacy of sampling was tested with cumulative sample curves, effectiveness of fire recording on individual trees,…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Occurrence, Fuels, Restoration and Rehabilitation, Weather
Region(s): Southwest
Keywords: Gambel oak, ponderosa pine, Grand Canyon National Park, mixed conifer, Kaibab Plateau, Coconino Plateau, modern calibration, Abies concolor, Arizona, biogeography, burning intervals, climatology, coniferous forests, dendrochronology, distribution, drought, elevation, European settlement, fire exclusion, fire frequency, fire injuries (plants), fire management, fire regimes, fire scar analysis, fire size, forest management, fuel accumulation, fuel loading, hardwoods, landscape ecology, national forests, national parks, Native Americans, pine forests, Pinus ponderosa, population density, Populus tremuloides, Douglas-fir, Pseudotsuga menziesii, Quercus gambelii, Robinia, sampling, season of fire, smoke management, statistical analysis, surface fires, wilderness fire management, wildfires
Changes in ecological concepts and a new focus on biodiversity as a central objective have led to changes in fire policies in South African savanna parks. Prescribed burning using fixed fire intervals is being replaced by systems that promote more variable fire regimes and…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Occurrence, Fuels, Planning, Prescribed Fire, Regulations and Legislation
Region(s): International
Keywords: fire management planning, fire policy, savannas, South Africa, Kruger National Park, Africa, arid regions, Australia, burning intervals, CO2 - carbon dioxide, community ecology, conservation, cover, distribution, ecosystem dynamics, fire frequency, fire intensity, fire management, fire regimes, fire size, fuel loading, grasses, grazing, landscape ecology, lightning, mesic soils, mosaic, national parks, overstory, population density, post-fire recovery, species diversity, succession, woody plants
Savannas form a large fraction of the total tropical vegetation and are extremely fire prone. We measured radiative, energy and carbon exchanges over unburned and burned (both before and after low and moderate intensity fires) open forest savanna at Howard Springs, Darwin,…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Occurrence, Fuels, Models
Region(s): International
Keywords: fire intensity, albedo, Australia, Northern Territory of Australia, surface energy exchanges, Howard Springs, eddy covariance, biomass, C - carbon, CO2 - carbon dioxide, char, crown fires, crown scorch, ecosystem dynamics, Eucalyptus miniata, evapotranspiration, Eucalyptus tetrodonta, fire exclusion, fire frequency, fire management, fire regimes, flame length, fuel loading, fuel moisture, fuel types, grasses, grasslands, heat, moisture, nutrient cycling, overstory, post-fire recovery, savannas, scorch, tropical forest, understory vegetation, wildfires, woody fuels
Considerable research has been undertaken over the past two decades to apply remote sensing to the study of fire regimes across the savannas of northern Australia. This work has focused on two spatial scales of imagery resolution: coarse-resolution NOAA-AVHRR imagery for savanna…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Communications, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Occurrence, Intelligence, Mapping, Monitoring and Inventory, Prescribed Fire
Region(s): International
Keywords: fire regimes, remote sensing, Landsat, NOAA-AVHRR, Australia, aborigines, air quality, fire frequency, fire management, fire size, mosaic, Northern Territory of Australia, precipitation, prehistoric fires, Queensland, savannas, season of fire, statistical analysis, wildfires
Effects of biomass burning and lightning on atmospheric chemistry over Australia and South-east Asia
In situ aircraft measurements of trace gases and aerosols were made in the boundary layer (BL) and free troposphere (FT) over Indonesia and Australia during the Biomass Burning and Lightning Experiment (BIBLE)-A and B conducted in August-October 1998 and 1999. Concentrations of…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Monitoring and Inventory, Weather
Region(s): International
Keywords: lightning, Indonesia, Australia, biomass burning, atmospheric chemistry, aerosols, air quality, biomass, chemistry, climatology, ENSO - El Nino Southern Oscillation, fire management, gases, hydrocarbons, N - nitrogen, ozone, seasonal activities, statistical analysis, surface fires, wildfires
Forest fires are an important source of various gases and particles emitted into the atmosphere that may affect the air quality on a local and/or larger scale. Currently, there is a growing awareness that smoke from wildland fires exposes individuals and populations to hazardous…
Person:
Year: 2004
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Effects, Fire History, Fuels, Models
Region(s): International
Keywords: air quality, fire progression, smoke dispersion, Portugal, plume dispersion, photochemical pollution, biomass, CO - carbon monoxide, chemistry, climatology, coniferous forests, Europe, fire management, fuel types, gases, herbaceous vegetation, CH4 - methane, needles, particulates, Pinus elliottii, pollution, rate of spread, shrubs, smoke behavior, smoke effects, soil management, statistical analysis, wildfires, wind
Fire management systems are being developed in many tropical countries, including Indonesia and Malaysia. As part of that development, this study set out to develop a fuel classification system and map for Malaysia and western Indonesia. We developed a template of fuel…
Person:
Year: 2004
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Hazard and Risk, Mapping, Models, Prescribed Fire
Region(s): International
Keywords: fire management, fuel classification, Indonesia, tropics, fire danger rating, fuel mapping, Malaysia, Sumatra, agriculture, air quality, bibliographies, cover, crowns, deciduous plants, distribution, evergreens, fine fuels, fire intensity, flame length, forest edges, fuel management, fuel moisture, fuel types, GIS - geographic information system, grasses, grasslands, heavy fuels, herbaceous vegetation, leaves, litter, logging, mineral soil, mortality, mosaic, native species, organic soils, overstory, partial cutting, peat, plantations, rainforests, rate of spread, second growth forests, shrublands, size classes, slash, slash and burn, smoke management, soil organic matter, soils, stand characteristics, surface fires, surface fuels, tropical forest, vines, woody fuels
The problem of eye safety in lidar-assisted wildland fire detection and investigation is considered as a problem of reduction of the hazard range within which the laser beam is dangerous for direct eye exposure. The dependence of this hazard range on the lidar characteristics is…
Person:
Year: 2004
Type: Document
Source: FRAMES, TTRS
Topic(s): Communications, Emissions and Smoke, Fire Prevention, Intelligence, Mapping, Monitoring and Inventory, Safety
Region(s): International
Keywords: remote sensing, Portugal, Gestosa, Europe, field experimental fires, fire hazard reduction, fire suppression, smoke behavior, smoke management, statistical analysis, wilderness fire management, wildfires
Currently, there is a growing awareness that smoke produced during forest fires can expose individuals and populations to hazardous concentrations of air pollutants. Aiming to contribute to a better understanding of the air pollution phenomenon associated with forest fires, this…
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire
Region(s): International
Keywords: air quality, Portugal, forest fire emissions
Moderate Resolution Imaging Spectroradiometer (MODIS) on board the NASA Earth Observing System Terra and Aqua satellites provides global fire observations of unprecedented quality. This paper presents spatial and temporal distributions of active fires from 2001 and 2002, the…
Person:
Year: 2005
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Communications, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Occurrence, Fuels, Hazard and Risk, Intelligence, Mapping, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: diurnal cycle, land cover, MODIS - Moderate Resolution Imaging Spectroradiometer, time series, satellite remote sensing, annual cycle, global fire activity, North America, South America, Africa, agriculture, Asia, Australia, coniferous forests, deciduous forests, distribution, ecosystem dynamics, Europe, evergreens, fire danger rating, fire frequency, fire management, forest management, gases, climate change, grasslands, herbaceous vegetation, natural areas management, population density, remote sensing, season of fire, savannas, shrublands, temperature, urban habitats, vegetation surveys, wetlands, wildfires