Type
Topic
Region
Year
Displaying 4426 - 4450 of 5840
A comprehensive numerical modeling framework was developed to estimate the effects of collective global changes upon ozone pollution in the US in 2050. The framework consists of the global climate and chemistry models, PCM (Parallel Climate Model) and MOZART-2 (Model for Ozone…
Person:
Year: 2008
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: climate model, FERA - Fire and Environmental Research Applications Team, global change, MM5 mesoscale model, fire emissions, ozone pollution
The emissions of NOx (defined as NO (nitric oxide) + NO2 (nitrogen dioxide)) and hydrogen cyanide (HCN), per unit amount of fuel burned, from fires in the pine forests that dominate the mountains surrounding Mexico City (MC) are about 2 times higher than normally observed for…
Person:
Year: 2007
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke
Region(s): International
Keywords: FERA - Fire and Environmental Research Applications Team, biomass burning, fire emissions, VOC - volatile organic carbon, Mexico City
Fires contribute substantial emissions of trace gases and particles to the atmosphere. These emissions can impact air quality and even climate. We have developed a modeling framework to estimate the emissions from fires in North and parts of Central America (10-71 degrees N and…
Person:
Year: 2006
Type: Document
Source: FRAMES, TTRS
Topic(s): Communications, Emissions and Smoke, Fuels, Intelligence, Mapping, Models, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Canada, emissions, FERA - Fire and Environmental Research Applications Team, North America, PM - particulate matter, Mexico, agriculture, agricultural fires, CO - carbon monoxide, South America, air quality, biomass, C - carbon, cover, croplands, duff, fire management, fuel loading, gases, grasslands, herbaceous vegetation, overstory, particulates, precipitation, remote sensing, shrubs, smoke management, statistical analysis, wetlands, wildfires
Biomass burning is a major source of emissions to the atmosphere. Some of these emissions may change global climate. This paper uses combustion efficiency as an independent variable for predicting emission factors for, among others, carbon monoxide, carbon dioxide, methane, and…
Person:
Year: 1991
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: wildland fire, biomass burning, combustion efficiency, FERA - Fire and Environmental Research Applications Team, emission factors
We have simulated the dynamical evolution of the plume from a prescribed biomass fire, using the active tracer high-resolution atmospheric model (ATHAM). Initialization parameters were set to reflect the conditions during the fire. The model results are compared with airborne…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Prescribed Fire, Weather
Region(s): Northwest
Keywords: biomass burning, FERA - Fire and Environmental Research Applications Team, SCAR-C Smoke, Cloud, and Radiation-C experiment, aerosol transport, aerosol optical properties
The Fire and Environmental Research Applications Team (FERA) of the Forest Service, Pacific Northwest Research Station, is an interdisciplinary team of scientists that conduct primary research on wildland fire and provide decision support for fire hazard and smoke management.…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Hazard and Risk, Models, Planning
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: FEPS - Fire Emissions Production Simulator, FCCS - Fuel Characteristic Classification System, Natural Fuels Photo Series, Consume 3.0, FERA - Fire and Environmental Research Applications Team, Digital Photo Series, fire management, air quality, carbon, fire hazard reduction, fire size, fuel management, fuel types, photography, population density, smoke management, surface fires, vegetation surveys, wildfires
Slash burning is an integral tool of forest management in the Pacific Northwest. The purpose of this study was to determine if mass- ignited, high intensity fires had less fuel consumption than moderate intensity fires. There was 23 percent less woody fuel consumption in high…
Person:
Year: 1991
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fire Prevention, Fuels, Models, Prescribed Fire, Weather
Region(s): Great Basin, Northern Rockies, Northwest
Keywords: forest management, FERA - Fire and Environmental Research Applications Team, slash burning, fuel consumption, air quality, air temperature, broadcast burning, clearcutting, combustion, coniferous forests, diameter classes, duff, fire hazard reduction, fire intensity, fire management, flame length, fuel types, Idaho, ignition, logging, Oregon, Montana, Pinus contorta, pine forests, lodgepole pine, Pseudotsuga menziesii, Douglas-fir, sampling, slash, statistical analysis, Tsuga heterophylla, Washington, woody fuels
The objective of this study was to improve a smoke emissions model that is currently being used to help reduce pollution impacts from prescribed burning of timber harvest residues. Smoke emissions from these types of burns have been characterized with in situ, real time sampling…
Person:
Year: 1994
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels, Models, Prescribed Fire
Region(s): Northwest
Keywords: broadcast burning, FERA - Fire and Environmental Research Applications Team, siliviculture, smoldering
Many areas of the boreal forest of Alaska contain deep layers of moss, duff, and peat, resulting in a large pool of biomass that can potentially can burn and smolder for long periods of time creating hazardous smoke episode for local residents and communities and causing…
Person:
Year: 2003
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels, Prescribed Fire
Region(s): Alaska
Keywords: boreal forest, duff consumption, fire management, fuel consumption, wildfire, biomass, Consume 3.0, moss, fuelbeds
The Joint Fire Science program funded a 3-year study to measure and model the forest floor consumption and sample flaming and smoldering emissions during wildfire and prescribed fires in the boreal forests of Alaska. During the summer of 2003, fuel consumption was measured at 5…
Person:
Year: 2003
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fuels, Prescribed Fire
Region(s): Alaska
Keywords: boreal forest, consumption, wildfire, FERA - Fire and Environmental Research Applications Team, forest floor consumption, smoke characterization
Models of fire behavior and effects do not always make accurate predictions, and there is not enough systematically gathered data to validate them. To help advance fire behavior and fire effects model development, the Joint Fire Science Program is helping fund the RxCADRE, which…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: aircraft, fire data, RxCADRE
When prescribed burning is conducted at the wildland-urban interface (WUI), the smoke that is produced can sometimes inconvenience people, but it can also cause more serious health and safety problems. The public is unlikely to continue to tolerate the use of prescribed fire,…
Person:
Year: 2007
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Planning, Prescribed Fire, Wildland-Urban Interface (WUI)
Region(s): Southern
Keywords: fire management, smoke management, smoke screening
This is a user's manual for VSMOKE, a computer program for predicting the smoke and dry weather visibility impact of a single prescribed fire at several downwind locations. VSMOKE is a FORTRAN 77 program that depends on the input in file VSMOKE.IPT to generate output in file…
Person:
Year: 1996
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: computer models, visibility, VSMOKE
Forest and land fires in Riau province of Sumatera increase along with the rapid deforestation, land clearing, and are induced by dry climate. Forest and land fires, which occur routinely every year, cause trans-boundary air pollution up to Singapore. Economic losses were felt…
Person:
Year: 2016
Type: Document
Source: FRAMES
Topic(s): Economics, Emissions and Smoke, Fire Effects, Models
Region(s): International
Keywords: Sumatra, haze, air pollution, aerosols
Biomass burning plays a critical role not only in atmospheric emissions, but also in the deposition and redistribution of biologically important nutrients within tropical landscapes. We quantified the influence of fire on biogeochemical fluxes of nitrogen (N), phosphorus (P),…
Person:
Year: 2016
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: biomass burning, Borneo, nutrients, N - nitrogen, P - phosphorus, S - sulfur, biogeochemical dynamics, PM - particulate matter, MODIS - Moderate Resolution Imaging Spectroradiometer, Indonesia
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
Typical hazardous fuel reduction treatments target small diameter trees for removal producing large amounts of woody material, much of which is piled and burned on site. Little is known about how physical characteristics and the environmental conditions under which piles are…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fuels
Region(s): Northwest, Southwest
Keywords: pile burn
Regional air quality simulations were performed to evaluate the contributions of wildland fires to inter-annual variability of black carbon (BC) concentrations and to assess the contributions of wildfires vs. prescribed fires to BC concentrations and deposition rates to glacier…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Prescribed Fire
Region(s): Great Basin, Northern Rockies, Northwest, Rocky Mountain
Keywords: black carbon, air quality
Wildland fires present a challenging environment to make meteorological measurements. Observations in the vicinity of wildland fires are needed to better understand fire-atmosphere interactions and to provide data for the evaluation of coupled fire-atmosphere models. An…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior
Region(s): California
Keywords: Doppler lidar, fire plumes, divergence
Low-intensity wildland fires occurring beneath forest canopies can result in particularly adverse local air-quality conditions. Ambient and fire-induced turbulent circulations play a substantial role in the transport and dispersion of smoke during these fire events. Recent in…
Person:
Year: 2015
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Eastern
Keywords: New Jersey Pine Barrens, forest canopy, smoke dispersion, turbulence, low-intensity fire
Seedlings of Phacelia strictiflora A.L. de Jussieu (Hydrophyllaceae) germinate profusely after major fires in the Cross Timbers forest of Oklahoma and rarely at other times and places. Seed germination was greatly enhanced under laboratory conditions by exposure to a water…
Person:
Year: 2013
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): Southern
Keywords: germination, smoke-induced germination, Oklahoma, Phacelia strictiflora, regeneration
Tropical peatland fires play a significant role in the context of global warming through emissions of substantial amounts of greenhouse gases. However, the state of knowledge on carbon loss from these fires is still poorly developed with few studies reporting the associated mass…
Person:
Year: 2016
Type: Document
Source: FRAMES
Topic(s): Fire Effects, Emissions and Smoke
Region(s): International
Keywords: Indonesia, peatland fires, carbon loss, fire frequency
Finding novel ways to plan and implement landscape-level forest treatments that protect sensitive wildlife and other key ecosystem components, while also reducing the risk of large-scale, high-severity fires, can prove to be difficult. We examined alternative approaches to…
Person:
Year: 2016
Type: Document
Source: FRAMES
Topic(s): Fuels, Fire Occurrence, Emissions and Smoke, Models, Fire Behavior
Region(s): California
Keywords: optimization, fuel treatments, mixed conifer, burn probability, fire spread
Tropical savanna ecosystems are a major contributor to global CO2, CH4 and N2O greenhouse gas exchange. Savanna fire events represent large, discrete C emissions but the importance of ongoing soil-atmosphere gas exchange is less well understood. Seasonal rainfall and fire events…
Person:
Year: 2011
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: Australia, CH4 - methane, N2O - nitrous oxide, CO2 - carbon dioxide, savanna woodland, termites, soils
Ecology of Plant-Derived Smoke is the continuation of the research and discussion presented in Uses & Abuses of Plant-Derived Smoke, published in 2010. Both books are the first of their kind in what is now an ever-expanding and exciting field of research. This volume focuses…
Person:
Year: 2014
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: germination, seed dormancy, fire-prone ecosystem