Type
Topic
Region
Year
Displaying 676 - 700 of 4981
Wildfire occurrence and severity in the Mediterranean region during the summer season is increasing, being favoured by climate change-induced conditions (i.e., drought, heatwaves). Moreover, additional natural sources frequently impact this region, particularly Saharan dust…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence, Mapping, Models
Region(s): International
Keywords: Mediterranean basin, PM - particulate matter, PM2.5, PM10, Saharan dust, natural, source, NAAPS - Navy Aerosol Analysis and Prediction System, VIIRS - Visible Infrared Imaging Radiometer Suite, Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT), WRF - Weather Research and Forecasting
The late-season extreme fire activity in Southcentral Alaska during 2019 was highly unusual and consequential. Firefighting operations had to be extended by a month in 2019 due to the extreme conditions of hot summer temperature and prolonged drought. The ongoing fires created…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Climate, Economics, Emissions and Smoke, Fire Behavior, Fire Occurrence, Safety
Region(s): Alaska
Keywords: boreal forest, wildland fire, wildfire, climate change, drought, PM2.5, PM - particulate matter, BUI - CFFDRS Buildup Index, SPEI - standardized precipitation-evapotranspiration index, RCP 8.5, LENS - Large Ensemble, temperature, precipitation, air quality, public health
Many Australians are intermittently exposed to landscape fire smoke from wildfires or planned (prescribed) burns. This study aimed to investigate effects of outdoor smoke from planned burns, wildfires and a coal mine fire by assessing biomarkers of inflammation in an exposed and…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Prescribed Fire, Safety
Region(s): International
Keywords: PM - particulate matter, PM2.5, landscape fire, bushfire, Australia, biomarkers, FeNO - fractional exhaled nitric oxide, neutrophils, white cell count, public health, wildfire
To evaluate the health effects of wildfire smoke, it is crucial to identify reliable models, at fine spatiotemporal resolution, of exposure to wildfire-generated PM2.5. To this end, satellite-drived aerosol optical depth (AOD) measurements are widely used in exposure models,…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping, Models, Monitoring and Inventory, Safety
Region(s): International
Keywords: wildfire, Canada, AOD - aerosol optical depth, PM2.5, PM - particulate matter, ANN - artificial neural networks, MLR - Multinomial Logistic Regression, spatiotemporal modelling, smoke exposure, public health, Alberta
Although the characteristics of biomass burning events and the ambient ecosystem determine emitted smoke composition, the conditions that modulate the partitioning of black carbon (BC) and brown carbon (BrC) formation are not well understood, nor are the spatial or temporal…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: biomass burning, remote sensing, MISR - Multi-angle Imaging SpectroRadiometer, smoke plume, particle properties, aerosols, FIREX‐AQ - Fire Influence on Regional to Global Environments and Air Quality, wildfire, smoke plume height, air quality
Landscape fires are substantial sources of (greenhouse) gases and aerosols. Fires in savanna landscapes represent more than half of global fire carbon emissions. Quantifying emissions from fires relies on accurate burned area, fuel load and burning efficiency data. Of these,…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fuels, Models
Region(s): International
Keywords: Africa, biomass burning, fuel load, savanna fires, drones, UAS - Unmanned Aircraft System, remote sensing, carbon emissions, area burned
Recent dramatic and deadly increases in global wildfire activity have increased attention on the causes of wildfires, their consequences, and how risk from wildfire might be mitigated. Here we bring together data on the changing risk and societal burden of wildfire in the United…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Hazard and Risk, Models, Safety, Wildland-Urban Interface (WUI)
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest
Keywords: wildfire, air pollution, climate change, health impacts, PM2.5, PM - particulate matter, COVID-19
Prescribed fire is an important tool for maintaining the resilience of fire-dependent ecosystems. Despite broad recognition of its value, however, prescribed fire application in the western US has not been applied at the necessary levels. Past research has identified a range of…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Administration, Emissions and Smoke, Planning, Prescribed Fire, Regulations and Legislation
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: policy, collaboration, funding, incentives
In recent decades, global warming has contributed to an increase in the number and intensity of wildfires destroying millions hectares of forest areas and causing many casualties each year. Firemen must therefore have the most effective means to prevent any wildfire from…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Occurrence, Mapping, Models, Monitoring and Inventory
Region(s): International
Keywords: convolutional neural network, fire detection, smoke detection, semantic segmentation
Wildfires in the western U.S. are large sources of particulate matter, and the area burned by wildfires is predicted to increase in the future. Some particles released from wildfires can affect cloud formation by serving as ice nucleating particles (INPs). INPs have numerous…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: ice nucleating particles, biomass burning, wildfires, PM - particulate matter
Emissions from a stand replacement prescribed burn were sampled using an unmanned aircraft system (UAS, or 'drone') in Fishlake National Forest, Utah, U.S.A. Sixteen flights over three days in June 2019 provided emission factors for a broad range of compounds including carbon…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire
Region(s): Great Basin
Keywords: Utah, wildfires, measurements, drones, UAS - Unmanned Aircraft System, Fishlake National Forest, air pollution
Airborne fine particulate matter (PM2.5) represents the greatest ambient air pollution risk to health. Wildfires and managed burns, together referred to hereafter as ‘landscape’ fires, are a significant PM2.5 source in many regions worldwide, able to affect air quality in areas…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: PM2.5, PM - particulate matter, air quality, landscape fire, population mortality, AQI - Air Quality Index
Poor air quality is an emerging problem in Australia primarily due to ozone pollution events and lengthening and more severe wildfire seasons. A significant deterioration in air quality was experienced in Australia’s most populous cities, Melbourne and Sydney, as a result of…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: air quality, meteorological normalization, PM - particulate matter, pollution health impact, COVID-19, Australia
Wildfires over the past 3 years have resulted in lengthy episodes of smoke inundation across major metropolitan areas in Australia, Brazil, and the United States. In 2020, air quality across the western United States reached and sustained extremely unhealthy to hazardous levels…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Australia, Brazil, PM - particulate matter, health impacts, air quality, human health
Smoke, as a prominent character of combustion, is widely regarded as a signal of forest fire. Existing in a video-based smoke root detection methods on rely the distance between smoke and the lens, which is one of the most challenging parts. In relatively close distances, the…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping, Monitoring and Inventory
Region(s): International
Keywords: China, video monitoring, smoke detection, smoke root, full scale, fusion, image, MSER - Maximally Stable Extremal Region, ViBe algorithm
Biomass combustion plays an important role in the earth's biogeochemical cycling. The monitoring of wildfires and their associated variables at global scales is feasible and can lead to predictions of the influence of combustion on biogeochemical cycling and tropospheric…
Person:
Year: 1988
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fire Occurrence, Mapping, Monitoring and Inventory
Region(s): California
Keywords: thermal analysis, wildfires, biogeochemical cycles, biomass burning, remote sensing, AVHRR - Advanced Very High Resolution Radiometer
Biomass burning from grassland, forests, and agricultural waste results in large amounts of gases and particles emitted to the atmosphere, which affect air quality, population health, crop development, and natural vegetation. Regional atmospheric circulations can transport those…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: biomass burning, Mexico, agricultural practices, smoke plume, protected area, natural areas, satellite data
In recent years, wildland fires have occurred more frequently and with increased intensity in many fire-prone areas. In addition to the direct life and economic losses attributable to wildfires, the emitted smoke is a major contributor to ambient air pollution, leading to…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: wildfire smoke, wood smoke, air pollution, cardiovascular health, public health, PM - particulate matter
Wildfires are an important source of nitrous acid (HONO), a photolabile radical precursor, yet in situ measurements and quantification of primary HONO emissions from open wildfires have been scarce. We present airborne observations of HONO within wildfire plumes sampled during…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: HONO - nitrous acid, wildfires, N - nitrogen, fire plumes, hydrogen oxide
The evolution of organic aerosol (OA) and brown carbon (BrC) in wildfire plumes, including the relative contributions of primary versus secondary sources, has been uncertain in part because of limited knowledge of the precursor emissions and the chemical environment of smoke…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: biomass burning, secondary organic aerosol, brown carbon, phenolic compounds, aircraft measurements, PM2.5, wildfires, plumes
Frequency and intensity of wildfire occurrences are dramatically increasing worldwide due to global climate change, having a devastating effect on the entire ecosystem including plants. Moreover, distribution of fire-smoke can influence the natural environment over very long…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: forest fire, peat fires, SO2 - sulfur dioxide, sulphite detoxification, oaks, beech, Germany, Fagus sylvatica, Quercus robur
Wildfires are starting to increase on a global scale due to a changing climate. These wildfires can destroy everything in their path and impact negatively on the environment, air quality and climate. On the October 28, 2018, a fire broke out in Outeniqua (33.75°S and 23.00°E),…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Occurrence, Mapping, Weather
Region(s): International
Keywords: South Africa, biomass burning, active fires, CALIPSO, black carbon, burnt area, PM - particulate matter, NDVI - Normalized Difference Vegetation Index, soil moisture, FRP - Fire Radiative Power
Peatlands play an important role as carbon pools, storing a third of the world's soil carbon. However, peatlands in Southeast Asia have suffered from depletion due to economic pressure and the demand for natural resources, often caused by land use changes and fires. Usually,…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects
Region(s): International
Keywords: climate change, peat soil, greenhouse gas, depth of burn, peatlands, Indonesia
The Western Wildfire Experiment for Cloud Chemistry, Aerosol Absorption, and Nitrogen (WE‐CAN) deployed the NSF/NCAR C‐130 aircraft in summer 2018 across the western U.S. to sample wildfire smoke during its first days of atmospheric evolution. We present a summary of a subset of…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California
Keywords: biomass burning, oxidized reactive nitrogen, smoke plumes
Fire has been a natural feature of the ecosystem for million years. Still, currently fire regimes have been increasingly altered by human activities and climate change, causing economic losses, air pollution, and environmental damage. In Brazil, savannas (locally known as the…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Models
Region(s): International
Keywords: Brazil, cerrado, savanna, frequent fires, plant biomass, climate change, aboveground biomass, carbon emissions, co-existence, fire frequency, management, BEFIRE