Type
Topic
Region
Year
Displaying 126 - 136 of 136
Some model experiments predict a large-scale substitution of Amazon forest by savannah-like vegetation by the end of the twenty-first century. Expanding global demands for biofuels and grains, positive feedbacks in the Amazon forest fire regime and drought may drive a faster…
Person:
Year: 2008
Type: Document
Source: TTRS
Topic(s): Climate, Economics, Emissions and Smoke, Restoration and Rehabilitation, Economics, Fuels
Region(s): International
Keywords: agriculture, Amazon, Brazil, C - carbon, deforestation, droughts, ENSO, fire control, fire regimes, forest fragmentation, forest management, climate change, land use, logging, mortality, South America, temperature, tropical forests, wildfires, deforestation, biofuel, feedbacks, globalization, global warming
Emissions of aerosol from biomass burning in northern Australia are globally significant, yet existing estimates of their magnitude are essentially unconstrained by observation. This two-part series (see Part II by Luhar et al. [2008. Biomass burning emissions over northern…
Person:
Year: 2008
Type: Document
Source: TTRS
Topic(s): Climate, Communications, Emissions and Smoke, Fire History, Fuels, Hazard and Risk, Intelligence, Mapping, Models, Monitoring and Inventory
Region(s): International
Keywords: aerosols, air quality, Australia, biomass, biomass burning, brush fires, C - carbon, distribution, fire danger rating, fire management, fire scar analysis, fuel loading, Northern Territory of Australia, radiation, remote sensing, savannas, season of fire, spot fires, statistical analysis, tropical regions, western Australia, bushfire emissions, fire scars, hotspots, TAPM, Modis data, aerosol loading, air quality in northern territory, Top End
An unanticipated wind shift led to the advection of plumes from two prescribed burning sites that impacted Atlanta, GA, producing a heavy smoke event late in the afternoon on February 28, 2007. Observed PM2.5 concentrations increased to over 140 mg/m3 and O3 concentrations up to…
Person:
Year: 2008
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Hazard and Risk, Models, Prescribed Fire, Wildland-Urban Interface (WUI)
Region(s): Southern
Keywords: air quality, C - carbon, chemical compounds, ecosystem dynamics, fire case histories, fire hazard reduction, fire management, forest management, gases, Georgia, ozone, K - potassium, rate of spread, smoke effects, smoke management, statistical analysis, temperature, urban habitats, wildfires, wind
Past atmospheric methane concentrations show strong fluctuations in parallel to rapid glacial climate changes in the Northern Hemisphere1,2 superimposed on a glacial-interglacial doubling of methane concentrations3-5. The processes driving the observed fluctuations remain…
Person:
Year: 2008
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Models
Region(s): International
Keywords: biomass, biomass burning, boreal forests, C - carbon, Europe, forest management, CH4 - methane, wetlands
Bulk aerosols sampled on a weekly basis at two Cairo (Egypt) urban sites from January 2003 to May 2006 were analysed for their chemical composition of major aerosol species (elemental carbon, water soluble/insoluble organic carbon, nitrate, Sulphate, ammonium, Chloride, sodium…
Person:
Year: 2008
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke
Region(s): International
Keywords: aerosols, Africa, air quality, biomass, biomass burning, calcium, C - carbon, dust, Egypt, fire management, smoke management, sodium, statistical analysis, storms, water, aerosol chemical composition, dust material, biomass burning, WSOC - water soluble organic carbon, greater Cairo
Direct evidence of the effects of intense wildfire on forest soil is rare because reliable prefire data are lacking. By chance, an established large-scale experiment was partially burned in the 2002 Biscuit fire in southwestern Oregon. About 200 grid points were sampled across…
Person:
Year: 2008
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fire History, Fuels, Intelligence
Region(s): Great Basin, Northwest
Keywords: age classes, Arbutus menziesii, Canada, C - carbon, Chrysolepis, coniferous forests, erosion, fire case histories, fire intensity, fire management, fire size, forest management, fuel accumulation, fuel management, gases, greenhouse gases, heavy fuels, Lithocarpus densiflorus, litter, mineral soils, mortality, N - nitrogen, Oregon, Pinus attenuata, Pinus lambertiana, post fire recovery, Pseudotsuga menziesii, soil management, soil nutrients, soil organic matter, soils, statistical analysis, thinning, wildfires, wildlife, wood, woody fuels
Aerosols from wildfires are the primary aerosols in the Arctic atmosphere during the summer months. These aerosols occur in large, increasing quantities and impact the sensitive radiative balance in the Arctic. FROSTFIRE, a controlled burn in a Long-Term Ecological Research Area…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Prescribed Fire
Region(s): Alaska
Keywords: boreal forest, wildfire, Arctic, flaming phase, Frostfire, permafrost, smoke aerosols, aerosol impactor, smoldering phase
Recent investigations indicate that wildfires provide a significant flux of mercury (Hg) from terrestrial ecosystems to the atmosphere. However, little is known about how geographic location, climate, stand age, and tree species affect Hg accumulation prior to burning and loss…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Northwest
Keywords: wildfire, Hg - mercury, Washington, Rex Creek Fire, soil cores
A suite of particulate, gaseous and meteorological measurements during the Pittsburgh Supersite experiment were used to characterize the impact of the 2002 Quebec wildfires on pollutant concentrations and physical and chemical processes dominant in the region. Temporal trends in…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Social Science, Wildland-Urban Interface (WUI)
Region(s): International
Keywords: Canada, boreal fire, pollutant concentrations, Quebec, 2002 wildfires, fire emissions, urban emissions
Fire-driven deforestation is the major source of carbon emissions from Amazonia. Recent expansion of mechanized agriculture in forested regions of Amazonia has increased the average size of deforested areas, but related changes in fire dynamics remain poorly characterized. We…
Person:
Year: 2008
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fuels
Region(s): International
Keywords: combustion, carbon emissions, deforestation, fire activity, land use change, MODIS - Moderate Resolution Imaging Spectroradiometer, Amazon, Brazil, agricultural development, soybeans, agriculture, Bolivia, C - carbon, cerrado, croplands, fire frequency, fire management, land use, remote sensing, savannas, season of fire, wildfires, woody fuels
In early 2003 a series of large, wildfire-related sediment slugs occurred in streams in the south-eastern Australian alpine region. Back-pack and boat-mounted electrofishing were used to measure changes in riverine fish fauna after one particularly large sediment slug which…
Person:
Year: 2008
Type: Document
Source: TTRS
Topic(s): Aquatic, Emissions and Smoke, Fire Ecology
Region(s): International
Keywords: Australia, disturbance, fire management, fishes, mortality, O - oxygen, population density, post fire recovery, rivers, sedimentation, streams, translocation, Victoria, water, water quality, watershed management, wildfires, Australia, blackfish, dissolved oxygen, Ovens River, sediment