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Displaying 51 - 75 of 196

Increasing fuel loads, fire hazard, and carbon emissions from fires in central Siberia

The vast Angara region, with an area of 13.8 million ha, is located in the southern taiga of central Siberia, Russia. This is one of the most disturbed regions by both fire and logging in northern Asia. We have developed surface and ground fuel-load maps by integrating satellite…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels, Hazard and Risk, Mapping
Region(s): International
Keywords: boreal forests, Siberia, Angara region, clearcuts, surface fuels, ground fuels, fuel load

Face-to-face with scorching wildfire: potential toxicant exposure and the health risks of smoke for wildland firefighters at the wildland-urban interface

As wildfire risks have elevated due to climate change, the health risks that toxicants from fire smoke pose to wildland firefighters have been exacerbated. Recently, the International Agency for Research on Cancer (IARC) has reclassified wildland firefighters’ occupational…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire, Safety, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: wildfire, firefighter, multi-pollutant mixtures, occupational health, environmental health, exposure assessment, wildfire management, respiratory protection

Machine learning-based ozone and PM2.5 forecasting: application to multiple AQS sites in the Pacific Northwest

Air quality in the Pacific Northwest (PNW) of the U.S has generally been good in recent years, but unhealthy events were observed due to wildfires in summer or wood burning in winter. The current air quality forecasting system, which uses chemical transport models (CTMs), has…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Safety
Region(s): Northwest
Keywords: machine learning, air quality forecasting, O3 - ozone, PM2.5, PM - particulate matter, random forest, multiple linear regression

Early exposure to wildfire smoke can lead to birth defects

The results of two previously published reports of the events and impacts of the Campfire wildfire smoke exposure that occurred in California in 2018 are amplified from the point of view of the potential toxic mechanism involved. The Campfire wildfire led to the exposure of a…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety
Region(s): California
Keywords: Camp Fire, wildfire, smoke exposure, birth defects, pregnancy, rhesus macaque monkey

The pyrogeography of methane emissions from seasonal mosaic burning regimes in a west African landscape

People have set fire to the savannas of West Africa for millennia, creating a pyrogeography. Fires render the landscape useful for many productive activities, but there is also a long history of efforts to regulate indigenous burning practices. Today, savanna fires are under…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fuels
Region(s): International
Keywords: savanna fires, CH4 - methane, emission factors, combustion efficiency, Africa

Fire characterization by using an original RST-based approach for fire radiative power (FRP) computation

Fire radiative power (FRP) is a basic parameter for fire characterization since it represents the heat emission rate of fires. Moreover, its temporal integration (fire radiative energy, FRE) is used as a proxy for estimating biomass burning and emissions. From satellite, FRP is…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior
Region(s): International
Keywords: RST - Robust Satellite Techniques, FRP - Fire Radiative Power, FRE - Fire Radiative Energy, Italy

A satellite imagery smoke detection framework based on the Mahalanobis distance for early fire identification and positioning

Wildfires negatively affect the atmosphere and ecological environment. The rapid identification of smoke is helpful for early fire detection and positioning, which are significant for fire early warning, fire point tracing, and atmospheric environment monitoring. The purpose of…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Occurrence, Mapping, Models, Monitoring and Inventory
Region(s): International
Keywords: smoke detection, concentration, inversion, Mahalanobis distance, fire detection, fire positioning, satellite imagery

Granzymes, IL-16, and PARP-1 increase during wildfire smoke exposure

Background: Given the increasing prevalence of wildfires worldwide, understanding the effects of wildfire air pollutants on human health, in specific, immunological pathways, is crucial. Exposure to air pollutants is associated with cardiorespiratory disease, however, immune,…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California
Keywords: wildfire exposure, air pollution, proteomics, immune cells, mass cytometry, immune system, smoke exposure, human health

Mobilizing through dialogue: building interdisciplinary partnerships among forest health, wildland fire, and public health sectors to find solutions to address the impact of wildland fire smoke on communities

The impact of smoke from wildland fires on communities across the western United States is an interdisciplinary crisis that requires an interdisciplinary solution. There are increasing calls for cross-collaboration between forest, fire, air quality, and public health…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Outreach, Planning, Prescribed Fire, Safety, Social Science
Region(s): Northwest
Keywords: public health, community health, wildfire, WHWG - Wildfires and Health working group, Washington, collaboration

Impact of climate and socioeconomic changes on fire carbon emissions in the future: sustainable economic development might decrease future emissions

Fires and their associated carbon and air pollutant emissions have a broad range of environmental and societal impacts, including negative effects on human health, damage to terrestrial ecosystems, and indirect effects that promote climate change. Previous studies investigated…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Climate, Economics, Emissions and Smoke, Models, Social Science
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: wildfire, climate change, biomass, change, economic development, 21st Century

Fire and smoke precise detection method based on the attention mechanism and anchor-free mechanism

Substantial natural environmental damage and economic losses are caused by fire. For this problem, automatic fire-smoke detection and identification are needed. Fire-smoke detection methods based on vision still suffer from significant challenges that fail to balance model…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Intelligence, Models
Region(s): International
Keywords: fire detection, smoke detection, YOLOv3, CNN - convolution neural network, attention mechanism, anchor-free mechanism, lightweight backbone

Preterm birth and term low birth weight associated with wildfire-specific PM2.5: a cohort study in New South Wales, Australia during 2016-2019

Background: Exposure to wildfire smoke has been linked with a range of health outcomes. However, to date, evidence is limited for the association between wildfire-specific PM2.5, a primary emission of wildfire smoke, and adverse birth outcomes. Objective: We aimed to estimate…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: Australia, public health, preterm birth, birth weight, wildfires, air pollution, cohort study, PM2.5

Fuels change quickly after California drought and bark beetle outbreaks with implications for potential fire behavior and emissions

Background: An extreme drought from 2012-2016 and concurrent bark beetle outbreaks in California, USA resulted in widespread tree mortality. We followed changes in tree mortality, stand structure, and surface and canopy fuels over four years after the peak of mortality in Sierra…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fuels
Region(s): California
Keywords: Dendroctonus spp., Pinus spp., Ips spp., Scolytus spp., Calocedrus spp., Abies spp., wildfires, epidemic, fuel hazard, tree mortality, drought

Do-it-yourself (DIY) air cleaners: evidence on effectiveness and considerations for safe operation

A review of academic and technical literature showed that do-it-yourself (DIY) air cleaners performed similarly to commercial portable air cleaners in terms of clean air delivery rate (CADR) and energy efficiency under controlled conditions. However, DIY devices were much more…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety
Region(s): International
Keywords: PM - particulate matter, PM2.5, DIY - do it yourself, portable air cleaners, CADR - clean air delivery rate

Spatial proximity to wildfires as a proxy for measuring PM2.5: a novel method for estimating exposures in rural settings

Background : Climate change impacts humans and society both directly and indirectly. Alaska, for example, is warming twice as fast as the global mean, and researchers are starting to grapple with the varied and interconnected ways in which climate change affects the people there…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory, Safety
Region(s): Alaska
Keywords: wildfires, PM2.5, PM - particulate matter, asthma, smoke exposure, rural areas, human health, fire proximity

Aggravated multi-source air pollution exposure caused by open fires in China

Open fires produce pollutants that critically harm human health. Differences in emission characteristics and toxic substances from the burning of different biomasses lead to distinct exposure patterns. However, the details of these exposure patterns are still poorly known due to…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models
Region(s): International
Keywords: wildfires, open fires, agricultural fires, China, cross-region transport, air pollutant exposure, PM - particulate matter, O3 - ozone, HYSPLIT - Hybrid Single-Particle Lagrangian Integrated Trajectory

The COVID-19-wildfire smoke paradox: reduced risk of all-cause mortality due to wildfire smoke in Colorado during the first year of the COVID-19 pandemic

Background In 2020, the American West faced two competing challenges: the COVID-19 pandemic and the worst wildfire season on record. Several studies have investigated the impact of wildfire smoke (WFS) on COVID-19 morbidity and mortality, but little is known about how these two…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety
Region(s): Rocky Mountain
Keywords: COVID-19, wildfires, mortality, human health

Quantifying the premature mortality and economic loss from wildfire-induced PM2.5 in the contiguous U.S.

Emissions from wildfires worsen air quality and can adversely impact human health. This study utilized the fire inventory from NCAR (FINN) as wildfire emissions, and performed air quality modeling of April–October 2012, 2013, and 2014 using the U.S. Environmental Protection…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Economics, Emissions and Smoke, Hazard and Risk, Safety
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest
Keywords: wildfires, air quality, public health, economic burden, premature mortality, PM2.5, PM - particulate matter, human health

Wildfire air pollution and acute cardiovascular disease events in California in 2018

Background: We examined association between acute cardiovascular disease (CVD) events and wildfire air pollution in California during Mendocino Complex (MC) fire and Camp fire in 2018.
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety
Region(s): California
Keywords: air pollution, wildfires, cardiovascular disease, 2018 fire season

The relationship between fire severity and burning efficiency for estimating wildfire emissions in Mediterranean forests

Forests are exposed to changing climatic conditions reflected by increasing drought and heat waves that increase the risk of wildfire ignition and spread. Climatic variables such as rain and wind as well as vegetation structure, land configuration and forest management practices…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping, Monitoring and Inventory
Region(s): International
Keywords: forest fire, wildfire, greenhouse gases, satellite images, dNBR - differenced Normalized Burn Ratio, burning efficiency

Unmanned-aircraft-system-assisted early wildfire detection with air quality sensors

Numerous hectares of land are destroyed by wildfires every year, causing harm to the environment, the economy, and the ecology. More than fifty million acres have burned in several states as a result of recent forest fires in the Western United States and Australia. According to…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Occurrence, Intelligence
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: UAS - Unmanned Aircraft System, air quality, sensors, fire detection, optimization

Atmospheric turbulence and wildland fires: a review

The behaviour of wildland fires and the dispersion of smoke from those fires can be strongly influenced by atmospheric turbulent flow. The science to support that assertion has developed and evolved over the past 100+ years, with contributions from laboratory and field…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: atmospheric turbulence, measurements, plumes, smoke dispersion, synthesis, vortices, wildland fires, wildfires

Informed multi-scale approach applied to the British Columbia fires of late summer 2017

Pyrocumulonimbus (PyroCb) clouds have a complex origin dependent on fire dynamics and meteorological conditions. When a pyrocumulonimbus cloud develops and is maintained over a period of time, it can inject significant aerosol into the troposphere and lower stratosphere,…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels, Models
Region(s): International
Keywords: pyrocumulonimbus clouds, FIRETEC, HIGRAD, British Columbia, Canada, wildfires, 2017 fire season, aerosol, fuel types

Satellite evidence for glyoxal depletion in elevated fire plumes

Space-borne observations are used to characterize the fate of formaldehyde and glyoxal in wildfire plumes. Their distribution measured by the Tropospheric Monitoring Instrument reveals striking differences between the two compounds near intense fires. In typical situations, the…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: glyoxal, atmosphere, wildfires, pyrocumulonimbus, formaldehyde, satellite measurements

ScienceX Webinar Series

The SCIENCEx webinar series brings together scientists and land management experts from across U.S. Forest Service research stations and beyond to explore the latest science and best practices for addressing large natural resource challenges across the country. These webinars…
Person:
Year: 2023
Type: Media
Source: FRAMES
Topic(s): Aquatic, Climate, Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Occurrence, Fire Prevention, Fuels, Hazard and Risk, Mapping, Models, Monitoring and Inventory, Outreach, Planning, Prescribed Fire, Restoration and Rehabilitation, Social Science, Weather, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: