Skip to main content

Displaying 151 - 175 of 242

A comprehensive numerical modeling framework was developed to estimate the effects of collective global changes upon ozone pollution in the US in 2050. The framework consists of the global climate and chemistry models, PCM (Parallel Climate Model) and MOZART-2 (Model for Ozone…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: climate model, FERA - Fire and Environmental Research Applications Team, global change, MM5 mesoscale model, fire emissions, ozone pollution

We have simulated the dynamical evolution of the plume from a prescribed biomass fire, using the active tracer high-resolution atmospheric model (ATHAM). Initialization parameters were set to reflect the conditions during the fire. The model results are compared with airborne…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Prescribed Fire, Weather
Region(s): Northwest
Keywords: biomass burning, FERA - Fire and Environmental Research Applications Team, SCAR-C Smoke, Cloud, and Radiation-C experiment, aerosol transport, aerosol optical properties

Objectives: To assess acute respiratory effects experienced by wildland firefighters. Methods: We studied two Interagency Hotshot Crews with questionnaires, spirometry, and measurement of albumin, eosinophilic cationic protein (ECP), and myeloperoxidase (MPO) as indicators of…
Person:
Year: 2008
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: firefighter health, respiratory illness, eosinophilic cationic protein, myeloperoxidase

Fires set for slash-and-burn agriculture contribute to the current unsustainable accumulation of atmospheric greenhouse gases, and they also deplete the soil of essential nutrients, which compromises agricultural sustainability at local scales. Integrated assessments of…
Person:
Year: 2008
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke
Region(s): International
Keywords: soil, agriculture, CH4 - methane, global warming, greenhouse gases, N2O - nitrous oxide, Amazon, Brazil, biomass burning, mulching, slash and burn, nitric oxide, biomass, biomass burning, fertility, gases, climate change, litter, nutrients, site treatments, soil management, soil nutrients, statistical analysis

A synthesis of data and analyses identified eight separate wildfire events (five in boreal Canada and three in the western United States) that impacted the Pittsburgh Supersite, as well as Toronto, during June and July 2002. These data also revealed a larger structure in the…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models, Monitoring and Inventory
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest, International
Keywords: boreal fire, HYSPLIT - Hybrid Single-Particle Lagrangian Integrated Trajectory, PM - particulate matter, PM2.5, air pollution, Canada, stagnant conditions, wildfires, synoptic

In many regions of the world, fires are an important and highly variable source of air pollutant emissions, and they thus constitute a significant if not dominant factor controlling the interannual variability of the atmospheric composition. This paper describes the 41-year…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: wildland fire, wildfires, greenhouse gases, air pollutants, carbon emissions, area burned

Resolving environmental impacts caused by the wildland–urban interface (WUI) expansion such as wildlife habitat fragmentation, or increased fire risk entails an accurate delineating of WUI boundary and its dynamics prediction. This study identified WUIs throughout the 11 states…
Person:
Year: 2008
Type: Document
Source: FRAMES, TTRS
Topic(s): Communications, Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Occurrence, Fire Prevention, Intelligence, Mapping, Monitoring and Inventory, Social Science, Wildland-Urban Interface (WUI)
Region(s): Southern
Keywords: wildfires, air quality, Alabama, Arkansas, fire damage (property), fire frequency, fire intensity, fire suppression, Florida, fragmentation, Kentucky, Georgia, land management, landscape ecology, Louisiana, Mississippi, North Carolina, population density, remote sensing, rural communities, SFP - Southern Fire Portal, South Carolina, statistical analysis, Tennessee, urban habitats, vegetation surveys, Virginia, water quality, wildlife, wildlife habitat management

A report to NWCG based on a review of existing social science literature, an analysis of social science needs, and a needs assessment based on input from 11 workshops held around the country. The report offers a research agenda that describes what research is needed, why it is…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Outreach, Planning, Social Science
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: fire management, wildland fire, NWCG - National Wildfire Coordinating Group

PROJECT OBJECTIVES As requested under Tasks 8 and 9, user-friendly modeling systems designed for local use will be provided for modeling smoke from wildland fires. These tools will provide a means for conducting tradeoff analyses, with a focus on emissions production, of…
Person:
Year: 2002
Type: Project
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: FARSITE - Fire Area Simulator, BEHAVE

Smoke from wildland burning in association with fog has been implicated as a visibility hazard over roadways in the United States. Visibilities at accident sites have been estimated in the range from 1 to 3 m (extinction coefficients between 1000 and 4000). Temperature and…
Person:
Year: 2008
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Models, Prescribed Fire, Weather
Region(s): Southern
Keywords: fog, forest fires, visibility, humidity, temperature, radiative forcing, water vapor, water content, combustion, coniferous forests, fire management, forest management, Georgia, moisture, national forests, Pinus taeda, pollution, radiation, season of fire, smoke management, South Carolina, water, statistical analysis

Burned area is a critical input to the algorithms of biomass burning emissions and understanding variability in fire activity due to climate change but it is difficult to estimate. This study presents a robust algorithm to reconstruct the patterns in burned areas across…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Behavior
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: burned area, diurnal, GOES - Geostationary Operational Environmental Satellite, biomass burning, spatial variability, temporal variability

This study quantifies the impact of the fires in California in fall 2007 on regional air quality and especially on surface ozone by analyzing surface observations of ozone concentrations together with global chemistry transport model simulations. The latter include a synthetic…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): California
Keywords: air quality, NO2 - nitrogen dioxide, ozone, pollution, O3 - ozone, wildfire, surface ozone

In this study we have evaluated the role of wildfires on concentrations of fine particle (d < 2.5 µm) organic carbon (OC) and particulate mass (PM2.5) in the Western United States for the period 1988-2004. To do this, we examined the relationship between mean summer PM2.5…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: PM2.5, area burned, biomass consumption, organic carbon, PM - particulate matter, biomass burning, biomass fuel, IMPROVE, wildfire

Because forest fires emit substantial NOx and hydrocarbons-known contributors to O3 production-we hypothesize that interannual variation in western U.S. O3 is related to the burned area. To evaluate this hypothesis we used a gridded database of western U.S. summer burned area (…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Monitoring and Inventory
Region(s): Great Basin, Northern Rockies, Northwest, Rocky Mountain
Keywords: biomass consumption, burned area, ozone, temperature, biomass burning, O3 - ozone, CASTNET

A wide range of scientific and technical literature regarding prescribed burning in Australia was collated and analyzed. Literature was classified according to the place of publication (local, state, national, and international) and the broad content of the publication (land…
Person:
Year: 2008
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Prescribed Fire
Region(s): International
Keywords: land management, literature review, fauna, flora, Australia, smoke production, water resources, soil resource, bibliography, ecology, fire frequency, fire management, fuel management, human caused fires, land management, sclerophyll vegetation, statistical analysis, water

Wildland fires are a major contributor to national and international greenhouse gas emissions, adding as much as 126.4 million tonnes of carbon dioxide emissions in the United States during 2005 (US EPA 2007b). Active forest and wildland fire management strategies can…
Person:
Year: 2008
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: air quality, CO2 - carbon dioxide, greenhouse gases

In wildland fires, gaseous fuel released from the thermal degradation of vegetation is burnt in the flame surrounding the solid. The gaseous fuel is a complex and variable mixture including mainly CO, CH4, CO2, and other light hydrocarbons (C2H2, C2H4, C2H6, C3H6). For the first…
Person:
Year: 2008
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: wildland fire, mechanisms, oxidation

Forest fuels reduction has the best chance of success if managers understand the factors that influence public acceptance of fuel management. This article reports an analysis of focus group interviews with wildland-urban interface residents at sites selected to provide variation…
Person:
Year: 2002
Type: Document
Source: FRAMES, TTRS
Topic(s): Economics, Emissions and Smoke, Fire Effects, Fuels, Prescribed Fire, Regulations and Legislation, Social Science, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: environmental management, forest management, forest, public relations, fuel management, air quality, catastrophic fires, education, fire damage (property), fire hazard reduction, fire management, fire regimes, fire suppression, hardwood forest, land use, pine forests, escaped prescribed fires, public information, smoke effects

Aerosol optical properties derived from Sun photometry were investigated in terms of climatological trends at two Sun photometer sites significantly affected by western Canadian boreal forest fire smoke and in terms of a 2-week series of smoke events observed at stations near…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, International
Keywords: boreal forest, Canada, fire, sun photometry

Boreal forests contain large amounts of stored soil carbon and are susceptible to periodic disturbance by wildfire. This study evaluates the relationship between post-fire changes in soil temperature, moisture, and CO2 exchange in paired burned and control stands of three…
Person:
Year: 2002
Type: Document
Source: FRAMES, TTRS
Topic(s): Aquatic, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels
Region(s): Alaska
Keywords: boreal forest, soils, atmosphere, CH4 - methane, CO2 - carbon dioxide, efflux, Interior Alaska, moisture, post-fire dynamics, respiration, sensitivity, soil carbon, temperature, thaw, black spruce, C - carbon, decay, ecosystem dynamics, hydrology, landscape ecology, Picea glauca, Picea mariana, Populus tremuloides, post-fire recovery, runoff, soil moisture, soil temperature, wildfires

The Encyclopedia of Southern Fire Science (ESFS) synthesizes volumes of scientific knowledge about fire science in the southern United States. ESFS delivers grounded information to field practitioners and the general public with viewer-navigated text, photos, graphics, plus a…
Person:
Year: 2002
Type: Website
Source: FRAMES
Topic(s): Communications, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Prescribed Fire, Weather
Region(s): Southern
Keywords: bibliography, ESFS - Encyclopedia of Southern Fire Science

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

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

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

The purpose of this study is to address socio-economic impacts of smoke produced by fuel reduction and restoration projects in the Flagstaff wildland-urban interface. The use of prescribed fire in the wildland-urban interface will produce smoke. The presence of smoke in the air…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Prescribed Fire, Wildland-Urban Interface (WUI)
Region(s): Southwest
Keywords: fire management