Type
Topic
Region
Year
Displaying 126 - 143 of 143
A series of wildfires broke out in Western Russia starting in late July of 2010. Harmful particulates and gases released into the local Russian atmosphere have been reported, as have possible negative consequences for the global atmosphere. In this study, an extremely hazy area…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire History, Fire Occurrence, Intelligence
Region(s): International
Keywords: biomass burning, fire damage (property), wildfires, air quality, C - carbon, gases, ozone, particulates, remote sensing, Russia, Asia, Europe, fire management
We estimated forest area and carbon changes in the conterminous United States using a remote sensing based land cover change map, forest fire data from the Monitoring Trends in Burn Severity program, and forest growth and harvest data from the USDA Forest Service, Forest…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Fire History, Emissions and Smoke, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: fire intensity, wildfires, air quality, C - carbon, cover, FIA, forest products, greenhouse gases, remote sensing, snags, ecosystem dynamics, fire management, forest management, carbon in harvested wood, forest area, harvest, greenhouse gas inventory, land cover change, wildfire emissions
The ratios of observed organic carbon (OC) to elemental carbon (EC) from the rural sites of the IMPROVE network are analyzed for the 5-year period from 2000 to 2004. Among these years, nationwide OC/EC peaks are observed most consistently in the summer of 2002. Several potential…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fire History, Models, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: biomass burning, season of fire, aerosols, air quality, C - carbon, particulates, fire management, OC, EC ratio, SUMMER BURNING, SOA, model evaluation
Euro-American logging practices, intensive grazing, and fire suppression have increased the amount of carbon that is stored in ponderosa pine (Pinus ponderosa Dougl. Ex Laws) forests in the southwestern United States. Current stand conditions leave these forests prone to high-…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fuels, Hazard and Risk, Prescribed Fire
Region(s): Southwest
Keywords: fire frequency, fire hazard reduction, surface fires, wildfires, C - carbon, national forests, thinning, Pinus ponderosa, ponderosa pine, Arizona, fire management, forest management, coniferous forests, fire risk reduction, silviculture, FVS - Forest Vegetation Simulator
Fire in tropical montane cloud forests (TMCFs) is not as rare as once believed. Andean TMCFs sit immediately below highly flammable, high-altitude grasslands (Puna/Paramo) that suffer from recurrent anthropogenic fire. This treeline is a zone of climatic tension where…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence
Region(s): International
Keywords: biomass burning, fire frequency, firebreaks, flammability, ground fires, human caused fires, rate of spread, wildfires, air quality, C - carbon, deforestation, national parks, peat, resprouting, roots, snags, soil organic matter, soils, Peru, South America, fire management, forest management, soil management, grasslands, montane forests, peatlands, tropical forests, biomass burning emissions, resprouting, montane cloud forests, Andes, peat soil, REDD+
Prescribed burning, in combination with mechanical thinning, is a successful method for reducing heavy fuel loads from forest floors and thereby lowering the risk of catastrophic wildfire. However, an undesirable consequence of managed fire is the production of fine particulate…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Occurrence, Fire Prevention, Fuels, Hazard and Risk, Prescribed Fire, Restoration and Rehabilitation
Region(s): Southwest
Keywords: biomass burning, broadcast burning, crown fires, fire frequency, fire hazard reduction, fire intensity, fire suppression, fuel loading, heavy fuels, low intensity burns, recreation related fires, surface fuels, air quality, C - carbon, hydrocarbons, particulates, slash, thinning, understory vegetation, Pinus ponderosa, ponderosa pine, Arizona, fire management, forest management, coniferous forests, elemental carbon, fine particulate matter, organic carbon, PM2.5, PAH - polycyclic aromatic hydrocarbons, wood-smoke particulate
Biomass burning is a significant source of aerosols that impact the global radiation budget, human health, and visibility. Molecular marker chemical mass balance models are frequently employed to estimate the contribution of biomass burning smoke to pollution at receptor sites.…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fuels, Prescribed Fire
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest
Keywords: biomass burning, fuel loading, smoke effects, wildfires, aerosols, air quality, C - carbon, grasses, leaves, needles, organic matter, particulates, pollution, fire management, smoke management, levoglucosan, mannosan, galactosan
Forests sequester carbon from the atmosphere, and in so doing can mitigate the effects of climate change. Fire is a natural disturbance process in many forest systems that releases carbon back to the atmosphere. In dry temperate forests, fires historically burned with greater…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fuels, Prescribed Fire, Weather
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest
Keywords: combustion, fire frequency, fire injuries (plants), fire intensity, fire regimes, fire suppression, fuel loading, wildfires, air quality, C - carbon, decomposition, drainage, forestation, climate change, mortality, plant growth, plant nutrients, population density, reforestation, soil nutrients, thinning, understory vegetation, vegetation surveys, fire management, forest management, land management, grasslands, shrublands, carbon stability, fire severity, fuels management
Loblolly pine (Pinus taeda) was combusted at different charge sizes, fuel moisture, and chlorine content to determine the effect on emissions of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/Fs) as well as copollutants CO, PM, and total hydrocarbons…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Prescribed Fire, Safety, Fuels
Region(s): Southern
Keywords: biomass burning, combustion, fuel moisture, air quality, C - carbon, chemistry, hydrocarbons, sampling, toxicity, loblolly pine, Pinus taeda, North Carolina, fire management, fuel management
Research activities focused on estimating the direct emissions of carbon from wildland fires across North America are reviewed as part of the North American Carbon Program disturbance synthesis. A comparison of methods to estimate the loss of carbon from the terrestrial…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire History, Fuels, Hazard and Risk, Intelligence, Models, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: fire case histories, fire hazard reduction, fire size, fuel moisture, fuel loading, fuel types, wildfires, air quality, biomass, C - carbon, disturbance, duff, remote sensing, Saskatchewan, Canada, Oregon, Mexico, fire management, forest management, fuel management, boreal forests, chaparral, coniferous forests, shrublands
We report high concentrations of black carbon aerosols (BC), present at two rural sites in New York during the last week in May 2010, that are linked to wildfire activity. At Mayville BC from wood smoke was recorded for a total of 20 h from three separate episodes, mean…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fire Prevention
Region(s): Eastern, International
Keywords: smoke effects, wildfires, aerosols, air quality, C - carbon, CO - carbon monoxide, climate change, greenhouse gases, health factors, particulates, radiation, remote sensing, Canada, New York, fire management, forest management, smoke management, boreal forests, mountains, black carbon, wildfire smoke, aerosols, fine particulate matter
Emitted to the atmosphere through fire and fossil fuel combustion, refractory black carbon nanoparticles (rBC) impact human health, climate, and the carbon cycle. Eventually these particles enter aquatic environments, where they may affect the fate of other pollutants. While…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Aquatic, Emissions and Smoke, Fire Effects
Region(s): California, Great Basin
Keywords: wildfires, air quality, C - carbon, hydrocarbons, particulates, runoff, toxicity, Nevada, fire management, smoke management, watershed management, lakes, watersheds
The boreal biome is characterised by extensive wildfires that frequently burn into the thick organic soils found in many forests and wetlands. Previous studies investigating surface fuel consumption generally have not accounted for variation in the properties of organic soils or…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Prevention, Fuels
Region(s): Alaska
Keywords: catastrophic fires, fire size, fuel loading, laboratory fires, peat fires, surface fuels, wildfires, air quality, C - carbon, lichens, litter, mosses, organic soils, particulates, peat, soil moisture, soil organic matter, statistical analysis, vegetation surveys, Cladina, Pleurozium schreberi, sphagnum, Alberta, Canada, fire management, fuel management, watershed management, bogs, boreal forests, peatlands, bog, boreal, C - carbon, ground-layer fuels, peat, peatland, smouldering, sphagnum, surface fuel combustion
On May 2009, both the gas and particulate fractions of smoke from a wildfire in Sever do Vouga, central Portugal, were sampled. Total hydrocarbons and carbon oxides (CO2 and CO) were measured using automatic analysers with flame ionisation and non-dispersive infrared detectors,…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Prevention
Region(s): International
Keywords: biomass burning, wildfires, air quality, C - carbon, gases, hydrocarbons, organic matter, particulates, Portugal, Europe, fire management, forest management, smoke management, wildfire, emission factors, particles, OC, EC, organic tracers
In summer 2009, emissions of trace gases and aerosols from several wildfires occurring in Portugal were sampled. A portable high-volume sampler was used to collect sequentially, on quartz fibre filters, coarse (PM2.5-10) and fine (PM2.5) smoke particles. Tedlar air sampling bags…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Occurrence
Region(s): International
Keywords: wildfires, aerosols, air quality, C - carbon, carbon dioxide, gases, hydrocarbons, organic matter, particulates, Portugal, Europe, fire management, wildfires, trace gases, carbonaceous particles, emission factors, water-soluble ions, metals
The concentrations of CO2 and other greenhouse gases in the atmosphere have been increasing and greatly affecting global climate and socio-economic systems. Actively growing forests are generally considered to be a major carbon sink, but forest wildfires lead to large releases…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Climate, Emissions and Smoke, Models, Monitoring and Inventory
Region(s): Great Basin
Keywords: biomass, C - carbon, carbon dioxide, cover, cover type, distribution, disturbance, elevation, FIA, fire intensity, fire management, fire size, forest inventory and analysis, forest management, gases, climate change, greenhouse gases, LANDFIRE, national parks, remote sensing, sampling, Utah, vegetation surveys, wildfires, spectral vegetation indicator, burn severity, regression tree model, carbon emissions
It has been suggested that thinning trees and other fuel-reduction practices aimed at reducing the probability of high-severity forest fire are consistent with efforts to keep carbon (C) sequestered in terrestrial pools, and that such practices should therefore be rewarded…
Person:
Year: 2011
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fuels
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: fire severity, fuel reduction treatments, carbon storage, western United States, fire exclusion, fire frequency, fire hazard reduction, fire injury, fire intensity, fuel moisture, surface fuels, wildfires, air quality, biomass, C - carbon, disturbance, drought, mortality, size classes, thinning, Pinus ponderosa, ponderosa pine, Pseudotsuga menziesii, Douglas-fir, ecosystem dynamics, fire management, forest management, fuel management, coniferous forests
For millennia, peatlands have served as an important sink for atmospheric CO2 and today represent a large soil carbon reservoir. While recent land use and wildfires have reduced carbon sequestration in tropical peatlands, the influence of disturbance on boreal peatlands is…
Person:
Year: 2011
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Ecology
Region(s): Alaska, International
Keywords: carbon emissions, organic matter, peatlands, boreal peatlands, carbon loss, combustion, peat fires, surface fires, surface fuels, wildfires, C - carbon, carbon dioxide, climate change, drainage, soil moisture, soil nutrients, soil organic matter, Canada, Alberta, fire management, land use, soil management, boreal forest, marshland