Type
Topic
Region
Year
Displaying 176 - 200 of 5837
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
In this webinar, RMRS research ecologist Sam Cushman, wildlife biologist Joe Ganey, and research ecologist Gavin Jones discussed their latest research on spotted owls and wildfire, including modeling the impacts of habitat loss under climate change on the Mexican spotted owl,…
Person: Cushman, Ganey, Jones
Year: 2020
Type: Media
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Ecology, Fire Effects, Models, Restoration and Rehabilitation
Region(s): California, Northwest, Southwest
Keywords: climate change, Strix occidentalis, Strix occidentalis caurina, Strix occidentalis lucida, Strix occidentalis occidentalis, spotted owl, annual area burned, habitat, northern spotted owl, California spotted owl, Mexican spotted owl, forest composition, historical fire regime
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
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
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
Wildfires are a major threat to the environment and human populations. Every year, 700,000 hectares of forest are burnt in Europe, and particularly in the Mediterranean area where Corsica is affected with its 550,000 hectares of forests. Among the threats induced by forest fires…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Wildland-Urban Interface (WUI)
Region(s): International
Keywords: aerosols, wood, thermoplastic, decking slabs, France, firefighting, cone calorimeter
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
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
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
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
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
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
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
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
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:
Wildfires are common occurrences worldwide that can destroy vast forest areas and kill numerous animals in a few hours. Climate change, rising global temperatures, precipitation, the introduction of exotic species of plants (e.g., eucalyptus), intensive agriculture, and…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): International
Keywords: mortality, conservation, wildfire, wildlife, veterinarians, Portugal
California plans to substantially increase the use of prescribed fire to reduce risk of catastrophic wildfires. Although for a beneficial purpose, prescribed fire smoke may still pose a health concern, especially among sensitive populations. We sought to understand community…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire, Safety, Wildland-Urban Interface (WUI)
Region(s): California
Keywords: wildfire, adaptive capacity, vulnerable populations, wildland fire, prescribed burns, managed fire
[from the text] June 2022 in Alaska was a remarkable month for wildfire. An incredible 1.84 million acres burned, nearly tying the all-time record for June. Notably, 1.2 million acres burned in southwestern Alaska, more than doubling the area burned in that region since the…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Occurrence, Fuels, Hazard and Risk
Region(s): Alaska
Keywords: wildfire management, wildfire environment, tundra fire, carbon release, wildfire mitigation
The 2nd Alaska Fire Science Consortium (AFSC) Research-to-Operations (R2O) workshop convened May 12-13 at the University of Alaska Murie Building.The 1.5-day workshop was held following NASA ABoVE’s 8th Annual Science Team Meeting as an opportunity for researchers and managers…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Hazard and Risk, Mapping, Models, Monitoring and Inventory
Region(s): Alaska
Keywords: ABoVE - NASA Arctic-Boreal Vulnerability Experiment, soil moisture, vegetation, remote sensing, vegetation management, WFEIS - Wildland Fire Emissions Information System, combustion
A short-duration but high-impact air quality event occurred on 28 November 2018 along the Rio Grande Valley of New Mexico. This fire occurred outside the typical wildfire season, and greatly impacted the air quality in Socorro, NM, and the surroundings. Measurements were taken…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects, Models, Prescribed Fire
Region(s): Southwest
Keywords: aerosols, biomass burning, visibility, climate forcing, PM2.5, PM - particulate matter, HYSPLIT - Hybrid Single-Particle Lagrangian Integrated Trajectory, New Mexico
Background: Forests are an essential natural resource to humankind, providing a myriad of direct and indirect benefits. Natural disasters like forest fires have a major impact on global warming and the continued existence of life on Earth. Automatic identification of forest…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Occurrence
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: forest fire, image processing, deep learning, CNN - convolution neural network, learning without forgetting, transfer learning, fire detection, satellite imagery
Fire is a major source of atmospheric aerosols and trace gases. Projection of future fire activities is challenging due to the joint impacts of climate, vegetation, and human activities. Here, we project global changes of fire-induced particulate matter smaller than 2.5 μm (PM2.…
Person:
Year: 2023
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, International, National
Keywords: PM - particulate matter, O3 - ozone, global warming, climate change, PM2.5, ModelE2-YIBs, aerosols
Forest fires cause many environmental impacts, including air pollution. Brazil is a very fire-prone region where few studies have investigated the impact of wildfires on air quality and health. We proposed to test two hypotheses in this study: i) the wildfires in Brazil have…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Safety
Region(s): International
Keywords: wildfire, air pollution, land use, land cover, Brazil, PM - particulate matter, PM2.5
Fires are an integral part of Mediterranean ecosystems, where they have played an ecological role for thousands of years. Nevertheless, fires also have a series of negative and significant impacts on people, properties, and the environment, with disastrous consequences on…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: PM2.5, fire emission, fires impacts, Mediterranean vegetation, Italy, air quality
Forest fires are a serious ecological concern, and smoke is an early warning indicator. Early smoke images barely capture a tiny portion of the total smoke. Because of the irregular nature of smoke’s dispersion and the dynamic nature of the surrounding environment, smoke…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Monitoring and Inventory
Region(s): International
Keywords: YOLO model, smoke detection, wildfire, data augmentation, object detection, fire detection