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Evaluation of the GEM-AQ air quality model during the Quebec smoke event of 2002: analysis of extensive and intensive optical disparities

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Person:
Year: 2006
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: aerosols, air quality, Canada, fire management, Quebec, smoke effects, smoke management, statistical analysis, wildfires, forest fire, aerosol optical depth, Angstrom exponent

Mutagenicity and polycyclic aromatic hydrocarbons associated with extractable organic matter from airborne particles <= 10 µm in southwest Mexico City

A year-long sampling and analysis of 24 h airborne particles equal to or less than 10 mm (
Person:
Year: 2006
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Climate, Emissions and Smoke
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: air quality, chemistry, diseases, fire frequency, fire intensity, humidity, hydrocarbons, Mexico, Mexico City, organic matter, particulates, pollution, sampling, season of fire, smoke management

Intercomparison of two box models of the chemical evolution in biomass-burning smoke plumes

Results from two independently developed biomass-burning smoke plume models are compared. Model results were obtained for the temporal evolution of two nascent smoke plumes originating from significantly different fire environments (an Alaskan boreal forest and an African…
Person:
Year: 2006
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Models, Prescribed Fire
Region(s): Alaska, Great Basin, Northwest, International
Keywords: Africa, air quality, biomass, boreal forests, coniferous forests, evolution, fire management, gases, human caused fires, lightning caused fires, mosaic, ozone, savannas, season of fire, smoke behavior, smoke management, South Africa, statistical analysis, wildfires, biomass burning, computational modeling, intercomparison, tropospheric chemistry

Agriculture crop residue burning in the Indo-Gangetic Plains -- a study using IRS-P6 AWiFS satellite data

Biomass burning from forest regions and agriculture crop residues can emit substantial amounts of particulate matter and other pollutants into the atmosphere. An inventory of forest, grassland and agricultural burning is important for studies related to global change. This study…
Person:
Year: 2006
Type: Document
Source: TTRS
Topic(s): Climate, Communications, Emissions and Smoke, Intelligence, Mapping, Monitoring and Inventory, Prescribed Fire
Region(s): International
Keywords: agriculture, air quality, Asia, biomass, broadcast burning, croplands, fire management, gases, climate change, grasslands, India, particulates, range management, remote sensing, statistical analysis, biomass burning, cereal waste, gases and particle emissions, field burning, global change

The effect of post-fire stand age on the boreal forest energy balance

Fire in the boreal forest renews forest stands and changes the ecosystem properties. The successional stage of the vegetation determines the radiative budget, energy balance partitioning, evapotranspiration and carbon dioxide flux. Here, we synthesize energy balance measurements…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Ecology, Fire Effects, Fire History
Region(s): Alaska, International
Keywords: boreal forest, Canada, eddy-covariance method, forest fire, albedo, brown ratio, climate change, energy balance, evapotranspiration, radiation

Evidence of significant large-scale impacts of boreal fires on ozone levels in the midlatitude Northern Hemisphere free troposphere

Summertime observations of O3and CO made at the PICO-NARE station during 2001, 2003, and 2004 are used to assess the impact of boreal forest fires on the distribution of O3 mixing ratios in the midlatitude Northern Hemisphere (NH) lower free troposphere (FT). Backward…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects
Region(s): International
Keywords: boreal forest, carbon emissions, ozone, Portugal

Changing sources of soil respiration with time since fire in a boreal forest

Radiocarbon signatures Delta 14C of carbon dioxide CO2 provide a measure of the age of C being decomposed by microbes or respired by living plants. Over a 2-year period, we measured Delta 14C of soil respiration and soil CO2 in boreal forest sites in Canada, which varied…
Person:
Year: 2006
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Ecology, Fire Effects, Fire Occurrence, Fuels, Hazard and Risk
Region(s): International
Keywords: boreal forests, decomposition, soil respiration, stand age, carbon storage, CO2 - carbon dioxide, soil carbon dioxide, Canada, age classes, C - carbon, catastrophic fires, evapotranspiration, fire frequency, gases, Manitoba, mosses, roots, soil management, soil nutrients, soil temperature, vegetation surveys, soils, wildfires

Carbon fluxes across regions

Scaling biogeochemical processes to regions, continents, and the globe is critical for understanding feedbacks between the biosphere and atmosphere in the analysis of global change. This includes the effects of changing atmospheric carbon dioxide, climate, disturbances, and…
Person:
Year: 2006
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, International, National
Keywords: C - carbon, forest management, carbon sequestration