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The Research and Development (R&D) Wildland Fire and Fuels program at the Forest Service, an agency of the U.S. Department of Agriculture, continues to be an internationally renowned program for generating critical and essential data, knowledge, and applications for all…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fuels, Models, Planning, Prescribed Fire, Restoration and Rehabilitation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: wildland fire, wildfires, atmospheric chemistry, fuels management, fuel treatment, research and development

Old-growth forests play a decisive role in preserving biodiversity and ecological functions. In an environment frequently disturbed by fire, the importance of old-growth forests as both a carbon stock as well as a source of emissions when burnt is not fully understood. Here, we…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Models
Region(s): International
Keywords: Canada, Quebec, Ontario, boreal forest, fuel load, carbon emissions, sustainable management, mitigation measures, old-growth forests, time since fire, carbon accumulation, fuel inventory

A series of wildfires in northern Quebec, early July 2002, and in southern Quebec, late May 2010, resulted in severe air pollution downwind. Downwind exposures were investigated to estimate the impact on outdoor and indoor environments. The plumes derived from the wildfires…
Person:
Year: 2014
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence
Region(s): Eastern, International
Keywords: wildfires, ozone, PM2.5, indoor air quality, downwind effect, exposure, Canada, Quebec, plumes, fire case histories, air quality, carbon, chlorine, particulates, pollution, K - potassium, wind, fire management, forest management, smoke management

On August 8, 2010, a severe derecho type thunderstorm in the Baltic Sea region coincided with smoke from wildfires in Russia. Remarkable smoke aerosol concentrations, with a maximum aerosol optical depth of more than 2 at 550 nm, were observed near the thunderstorm. The impact…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): International
Keywords: Derecho, Russia, aerosol, radiative effects, HARMONIE - Hirlam Aladin Research for Mesoscale Operational Numerical Weather Prediction in Euromed, thunderstorms

We looked at 19 wildfire events that were observed in the summers of 2012 and 2013 at the Mt. Bachelor Observatory (MBO, 2.7 km a.s.l.), a mountaintop site located in central Oregon. We identified wildfire plumes using enhancement ratios (ΔY/ΔX), which we calculated for each…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Northwest
Keywords: Oregon, ozone production, enhancement ratios, wildfires, fire plumes

Wildfires alter land cover creating changes in dynamic, vegetative, radiative, thermal and hydrological properties of the surface. However, how so drastic changes induced by wildfires and how the age of the burnt scar affect the small and meso-scale atmospheric boundary layer…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models, Weather
Region(s): International
Keywords: Portugal, Mediterranean region, wildfires, water cycle

The most destructive wildfire experienced in Spain since 2004 occurred close to Valencia in summer 2012. A total of 48.500 ha were affected by two wildfires, which were mostly active during 29–30 June. The fresh smoke plume was detected at the Burjassot measurement station…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: wildfires, dust, aerosol, Spain, smoke plume

Landowners and managers, municipalities, the logging and livestock industries, and conservation professionals all increasingly recognize that setting prescribed fires may reduce the devastating effects of wildfire, control invasive brush and weeds, improve livestock range and…
Person:
Year: 2009
Type: Document
Source: FRAMES
Topic(s): Administration, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Hazard and Risk, Monitoring and Inventory, Outreach, Planning, Prescribed Fire, Regulations and Legislation, Restoration and Rehabilitation, Safety, Social Science, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: human dimension, public relations, smoke management, mop up

Persistent high pressure conditions over the European part of Russia during summer 2010 were responsible for an extended period of hot and dry weather, creating favourable conditions for severe wildfires. The chemical transport model SILAM is used to simulate the dispersion of…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Weather
Region(s): International
Keywords: Russia, SILAM, MACC - Monitoring Atmospheric Composition and Climate, HARMONIE - Hirlam Aladin Research for Mesoscale Operational Numerical Weather Prediction in Euromed, wildfires, aerosol radiative effects

The importance of flame detection cannot be ignored in a wildfire video surveillance system due to disturbance of heavy fog and challenging of smoke detection. In this paper a novel method for hierarchical detection of wildfire flame video is presented. Specifically, wildfire…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Occurrence, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: hierarchical detection, wildfire flame video detection, sparse representation, fire detection

UV absorption in Valparaíso, Chile, is analyzed during the passage of a smoke column from a nearby forest fire. Total solar absorption is measured, UVB and UVA radiation, UV nanometre to nanometre between 295 nm and 315 nm. With the purpose of seeing what factors intervene in…
Person:
Year: 2012
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: Chile, UV - ultra violet, PM - particulate matter, absorption

Predictions of O3, CO, total NOy and individual NOy species (NO, NO2, HNO3, PAN, alkyl nitrates and aerosol nitrate) from a fine resolution regional air quality modeling system for the South Coast Air Basin (SoCAB) and San Joaquin Valley Air Basin (SJVAB) of California are…
Person:
Year: 2016
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): California
Keywords: ozone, CO - carbon monoxide, wildfires, reactive nitrogen, air quality, fire plumes, N - nitrogen, fire management, smoke management

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

An overview of the National Oceanic and Atmospheric Administration’s (NOAA) current operational Smoke Forecasting System (SFS) is presented. This system is intended as guidance to air quality forecasters and the public for fine particulate matter (≤2.5 μm) emitted from large…
Person:
Year: 2009
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Mapping, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: smoke forecasting, air pollution, forest fires, wildfires, NESDIS - National Environmental Satellite, Data and Information Service, HYSPLIT - Hybrid Single-Particle Lagrangian Integrated Trajectory, hazard map

Background and objective: The 2006-2007 wildfire period was one of the most extensive and long lasting fires in Australian history with high levels of fine particulate matter (PM2.5). Large populations were exposed to smoke for over 2 months. The study aimed to investigate the…
Person:
Year: 2016
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Safety
Region(s): International
Keywords: Australia, PM - particulate matter, PM2.5 airborne concentrations, health risk, asthma

Increases in hospital admissions and deaths are associated with increases in outdoor air particles during wildfires. This analysis estimates the health benefits expected if interventions had improved particle filtration in homes in Southern California during a 10-day period of…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Economics, Emissions and Smoke, Fire Effects, Safety
Region(s): California
Keywords: PM - particulate matter, air quality, intervention analysis, health hazards

Global warming is expected to considerably impact wildfire activity and aerosol emission release in the future. Due to their complexity, the future interactions between climate change, wildfire activity, emission release, and atmospheric aerosol processes are still uncertain.…
Person:
Year: 2016
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: global warming, fire activity, aerosol emissions, SPITFIRE-JSBACH, RCP - representative concentration pathway

The impact of wildfires on surface air composition over central Siberia is investigated based on near-surface carbon monoxide (CO) measurements conducted at Zotino Tall Tower Observatory (ZOTTO), a remote station in the center of Siberia, during 2007 and 2008 warm seasons.…
Person:
Year: 2011
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: CO - carbon monoxide, Siberia

Post-fire landscapes are often blanketed with a layer of ash that is capable of altering post-fire infiltration response. Documentation of ash layer characteristics, specifically ash sorptivity and hydraulic conductivity, is instrumental to understanding and modeling post-fire…
Person:
Year: 2015
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California, Northern Rockies, Rocky Mountain, Southwest, International
Keywords: ash, methodology, wildfires, sorptivity, hydraulic conductivity, post-fire, soils, fire intensity, post-fire recovery, British Columbia, Montana, Arizona, New Mexico, Wyoming, soil moisture, soil organic matter, soil permeability, fire management, range management, soil management

This paper presents airborne measurements of multiple atmospheric trace constituents including greenhouse gases (such as CO2, CH4, O3) and biomass burning tracers (such as CO, CH3CN) downwind of an exceptionally large wildfire. In summer 2013, the Rim wildfire, ignited just west…
Person:
Year: 2016
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fire Occurrence, Hazard and Risk
Region(s): California
Keywords: wildfires, trace gases, emission factors, enhancement ratios, airborne measurements, greenhouse gases, biomass burning, 2013 Rim Fire, fire case histories, fire size, fire management

The combined use of chemical analysis of organic molecules in atmospheric aerosols (PM1) collected in situ in Barcelona and optical measurements with a light detection and ranging (LIDAR) instrument allowed the characterization of the smoke plume from a wildfire that reached the…
Person:
Year: 2016
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence, Intelligence, Models
Region(s): International
Keywords: organic aerosols, levoglucosan, PAH - polycyclic aromatic hydrocarbons, LiDAR - Light Detection and Ranging, FLEXPART, Spain, air quality, biomass burning, wildfires, aerosols, remote sensing, fire management, smoke management, urban habitats

This study examined the recycling of lead (Pb) in ash from wildfires, its source and potential contribution to environmental contamination. Ash from wildfires was collected from four Australian sites following uncontrolled fires during 2012 to 2013 close to major urban…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: Australia, lead, ash, contamination

The increase in area burned by wildfire has simultaneously brought increased concern about smoke impacts, both from wildfires and fires intentionally set to manage landscapes. Public concern about the potential health and other impacts of smoke can cause apprehension among…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fuels, Hazard and Risk, Prescribed Fire
Region(s): California, Northern Rockies, Northwest, Southern
Keywords: agricultural burning, communities, fuel treatment, human health, managed fire, area burned, public acceptance

Wildland fire emissions degrade air quality and visibility, having adverse economic, health and visibility impacts at large spatial scales globally. Air quality regulations can constrain the goals of landscape resilience and management of fire-dependent ecosystems. Here, we…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Economics, Emissions and Smoke, Fire Effects, Regulations and Legislation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Australia, air quality, regulatory policy, smoke management, fire management, health impacts, visibility

Burning of agricultural waste residue is a common method of disposal when preparing land following crop harvest. This practice introduces volatile organic compounds, including polycyclic aromatic hydrocarbons (PAHs), into the atmosphere. This study examines the particle size…
Person:
Year: 2007
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fuels
Region(s): California
Keywords: PAH - polycyclic aromatic hydrocarbons, particle size, distribution, agricultural burning, emission factors, biofuel, carbon, chemical compounds, combustion, cropland fires, fire management, fuel loading, hydrocarbons, particulates, smoke management, statistical analysis, temperature