Type
Topic
Region
Year
Displaying 251 - 264 of 264
Ammonia measurements from the Southeastern Aerosol Research and Characterization (SEARCH) study network were analyzed for trends over 9 yr (2004-2012) of observations. Total ammonia concentrations, defined as the sum of gas-phase ammonia and fine particle ammonium, were found to…
Person:
Year: 2015
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Occurrence
Region(s): Southern
Keywords: fire frequency, wildfires, air quality, chemical compounds, gases, N - nitrogen, SO2 - sulfur dioxide, Alabama, Florida, Georgia, Mississippi, fire management
A summer campaign in Central Italy was carried out to study the impact of fire emissions on the mixing ratios of surface trace gases. Observations with a selective and sensitive instrument that uses the laser induced fluorescence technique for direct measurements of nitrogen…
Person:
Year: 2015
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: biomass burning, wildfires, air quality, flowering, gases, N - nitrogen, ozone, pollution, Italy, Europe, fire management, forest management, grasslands, nitrogen dioxide, ozone, biomass burning, urban pollution, laser induced fluorescence
[no description entered]
Person:
Year: 1996
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Occurrence, Fuels
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Acer, C - carbon, combustion, coniferous forests, disturbance, ecosystem dynamics, fire adaptations (plants), fire exclusion, fire frequency, fire management, flammability, forest management, hydrocarbons, litter, Los Alamos, Mexico, needles, New Mexico, N - nitrogen, nutrient cycling, nutrients, particulates, Pinus flexilis, Pinus ponderosa, Populus, post fire recovery, Pseudotsuga menziesii, Quercus, sampling, scorch, statistical analysis, volatilization, woody fuels, MINERALIZATION PATTERNS, monoterpenes
Prescribed burning is an effective way of restoring the fire process to ponderosa pine (Pinus ponderosa Dougl. ex Laws.) ecosystems of the Southwest. If used judiciously, fire can provide valuable effects for hazard reduction, natural regeneration, thinning, vegetation…
Person:
Year: 1996
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Hazard and Risk, Prescribed Fire, Restoration and Rehabilitation
Region(s): Great Basin, Southwest
Keywords: Arizona, burning intervals, competition, coniferous forests, ecosystem dynamics, fire frequency, fire hazard reduction, fire management, forest management, fuel management, fuel moisture, humidity, Madrean habitats, N - nitrogen, organic matter, overstory, pine forests, Pinus ponderosa, population density, post fire recovery, presettlement vegetation, regeneration, season of fire, seedlings, smoke management, soil nutrients, thinning, understory vegetation, volatilization, wind
Fires can produce a wide range of changes in nutrient cycles of forest, shrub, and grassland ecosystems depending on fire severity, fire frequency, vegetation, and climate. These changes can be beneficial when fires increase the availability of plant nutrients, and deleterious…
Person:
Year: 1996
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air temperature, Artemisia, ash, biomass, chaparral, chemistry, coniferous forests, convection, ecosystem dynamics, erosion, fine fuels, fire frequency, fire intensity, forest management, fuel loading, fungi, grasslands, heavy fuels, humidity, Juniperus, litter, low intensity burns, Madrean habitats, microorganisms, mineral soils, mycorrhiza, N - nitrogen, nutrient cycling, nutrients, organic matter, phosphorus, Pinus edulis, plant nutrients, precipitation, roots, runoff, shrublands, slash, soil erosion, soil leaching, soil organisms, soil permeability, soil temperature, soils, understory vegetation, vegetation surveys, volatilization, wind, FIRE-DOMINATED FOREST ECOSYSTEMS, GLOBAL IMPLICATIONS, NUTRIENT POOLS AND FLUXES, soil biota
After nearly a century of avid fire suppression, land managers are substantially increasing prescribed burning to meet ecosystem management objectives. As scientists and managers we need to accurately quantify the capacity of airsheds to assimilate smoke and related atmospheric…
Person:
Year: 1996
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Prevention, Hazard and Risk, Models, Prescribed Fire, Regulations and Legislation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, fire management, water quality, smoke modeling, pollutants, prescribed natural fire, wildfire, atmospheric dispersion, biomass, carbon dioxide, CO - carbon monoxide, catastrophic fires, chemical compounds, coniferous forests, ecosystem dynamics, fire intensity, fire suppression, forest management, grasslands, health factors, hydrocarbons, land management, logging, Madrean habitats, natural resource legislation, NEPA - National Environmental Policy Act, N - nitrogen, pollution, chance ignition prescribed fires, slash, smoke management, soils, US Forest Service, wind
Alaska, the great northern frontier of America, is being reshaped by climate change. While rising temperatures are altering its character and landscape, they are also bringing the ravages of wildfires. In the past 60 years, Alaska has warmed more than twice as fast as the rest…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Occurrence, Hazard and Risk
Region(s): Alaska
Keywords: climate change, C - carbon, area burned, fire season length
Alaska and its neighbor to the east, Canada, have kicked off wildfire season in a major way. Blazes have raged across the northern stretches of North America, sending smoke streaming down into the Lower 48 and leaving the landscape charred. The multitudes of fires is a glimpse…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Effects
Region(s): Alaska
Keywords: peatlands, C - carbon, climate change
Boreal fires burn into carbon-rich organic soils, thereby releasing large quantities of trace gases and aerosols that influence atmospheric composition and climate. To better understand the factors regulating boreal fire emissions, we developed a statistical model of carbon…
Person:
Year: 2015
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): Alaska
Keywords: aerosols, trace gases, carbon consumption, fire size, wildfires, air quality, C - carbon, organic soils, remote sensing, fire management, forest management, boreal forests
In this paper, we analyze the current and future status of forests in Ukraine and Belarus that were contaminated after the nuclear disaster in 1986. Using several models, together with remote-sensing data and observations, we studied how climate change in these forests may…
Person:
Year: 2015
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fire History, Fire Occurrence, Hazard and Risk, Intelligence
Region(s): International
Keywords: fire regimes, litter, carbon stock, Chernobyl, climate change, fire risk, Ukraine, Belarus, Cesium-137, redistribution, biomass burning, crown fires, fire intensity, wildfires, C - carbon, cover, distribution, drought, radiation, mortality, remote sensing, snags, fire management, forest management
Savanna ecosystems comprise 22% of the global terrestrial surface and 25% of Australia (almost 1.9 million km2) and provide significant ecosystem services through carbon and water cycles and the maintenance of biodiversity. The current structure, composition and distribution of…
Person:
Year: 2015
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fire Occurrence
Region(s): International
Keywords: carbon balance, savannas, Australia, biomass burning, greenhouse gas, climate feedbacks, fire regimes, wildfires, aerosols, air temperature, C - carbon, humidity, precipitation, radiation, wind, ecosystem dynamics, fire management, forest management
Description not entered.
Person:
Year: 1996
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke
Region(s): Unknown
Keywords: C - carbon, atmosphere, ozone, biomass burning
In this study we examine the molecular organic constituents (C8 to C40 lipid compounds) collected as smoke particles from a Canadian boreal forest prescribed burn. Of special interest are (1) the molecular identity of polar organic aerosols, and (2) the amount of polar organic…
Person:
Year: 1996
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire
Region(s): Alaska, International
Keywords: boreal forest, Canada, C - carbon, fire, smoke emissions, aerosols, atmospheric science, biomass burning
Description not entered.
Person:
Year: 1996
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: C - carbon, remote sensing, carbon dioxide production, global change, biomass burning