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Characterization of wildfire smoke over complex terrain using satellite observations, ground-based observations, and meteorological models

The severity of wildfires is increasing globally. In this study, we used data from the Global Change Observation Mission-Climate/Second-generation Global Imager (GCOM-C/SGLI) to characterize the biomass burning aerosols that are generated by large-scale wildfires. We used data…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping, Models, Monitoring and Inventory, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: SCALE - Scalable Computing for Advanced Library and Environment, GCOM - Global Change Observation Mission-Climate, SGLI - Second-generation Global Imager, AERONET - Aerosol Robotic Network, radiative transfer models, polarizations

Spatial and temporal variation of air pollutant emissions from forest fires in China

Warm and dry climate conditions favor the occurrence of forest fires. Forest burning leads to the discharge of large amounts of particles and trace gases that play an important role in air quality degradation and have impact on human health. To date, most studies on China's…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: China, forest fire, air pollutants, greenhouse gas, EI - Emission Inventory, air quality, INFERNO - INteractive Fire and Emission algoRithm for Natural envirOnments

Contrasting stratospheric smoke mass and lifetime from 2017 Canadian and 2019/2020 Australian megafires: global simulations and satellite observations

Stratospheric injections of carbonaceous aerosols and combustion gases by extreme wildfires have become increasingly common. Recent “megafires,” particularly large and intense fires, delivered particulate burdens to the lower stratosphere comparable to those of moderate volcanic…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping, Models, Monitoring and Inventory
Region(s): International
Keywords: Canada, Australia, megafires, pyrocumulonimbus clouds, stratospheric intrusions, wildfires, satellite observations, stratospheric injections, smoke plumes, Community Earth System Model, GEOS5 - Goddard Earth Observing System-Version 5

Severe biomass-burning aerosol pollution during the 2019 Amazon wildfire and its direct radiative-forcing impact: a space perspective from MODIS retrievals

An extreme biomass burning event occurred in the Amazonian rainforest from July through September 2019 due to the extensive wildfires used to clear the land, which allowed for more significant forest burning than previously occurred. In this study, we reclustered the clear-sky…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Mapping, Monitoring and Inventory
Region(s): International
Keywords: satellite remote sensing, Amazon, wildfire, black carbon, direct radiative forcing, aerosol optical properties, Amazonia, aerosol radiative forcing, AOD - aerosol optical depth, Amazonian rainforest

Wildfire-induced pollution and its short-term impact on COVID-19 cases and mortality in California

Globally, wildfires have seen remarkable increase in duration and size and have become a health hazard. In addition to vegetation and habitat destruction, rapid release of smoke, dust and gaseous pollutants in the atmosphere contributes to its short and long-term detrimental…
Person:
Year: 2023
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California
Keywords: wildfires, air quality, respiratory disease, COVID-19, air pollution

Comparison of fire-produced gases from wind tunnel and small field experimental burns

Composition of pyrolysis gases for wildland fuels is often determined using ground samples heated in non-oxidising environments. Results are applied to wildland fires where fuels change spatially and temporally, resulting in variable fire behaviour with variable heating. Though…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: data analysis, flaming combustion, gas composition, logistic model, Pinus palustris, longleaf pine, pyrolysis

Catastrophic PM2.5 emissions from Siberian forest fires: impacting factors analysis

With increased forest fires due to climate change, PM2.5 emissions also intensified. Record PM2.5 emissions according to Copernicus Atmosphere Monitoring Service in Russia amounted to 8 megatons (Mt) in 2021, which is 78% higher than the average level of 2004-2021 (4.5 Mt).…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: PM2.5, wildfires emissions, CAMS - Copernicus Atmosphere Monitoring Service, SARIMAX, ERA5, CEDA, Siberia

Valuing the impact of forest disturbances on the climate regulation service of western U.S. forests

The protection and expansion of forest carbon sinks are critical to achieving climate-change mitigation targets. Yet, the increasing frequency and severity of forest disturbances challenge the sustainable provision of forest services. We investigated patterns of forest…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects, Models
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: forest health, climate change, ecosystem services, sustainable forest management, bark beetles, forest disturbance, wildfires, carbon fluxes, fire frequency

Joint vision and key messages on relative benefits of prescribed fire to wildfire

A statement by the Wildland Fire Leadership Council and their partners relating to the benefits of prescribed fire programs.
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords:

Duff burning from wildfires in a moist region: different impacts on PM2.5 and ozone

Wildfires can significantly impact air quality and human health. However, little is known about how different fuel bed components contribute to these impacts. This study investigates the air quality impacts of duff and peat consumption during wildfires in the southeastern United…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels
Region(s): Southern
Keywords: PM - particulate matter, PM2.5, O3 - ozone, wildfire, duff fire, air quality, FINN - Fire Inventory of NCAR, peat consumption

The Wildland Firefighter Exposure and Health Effect (WFFEHE) study: rationale, design, and methods of a repeated-measures study

The wildland firefighter exposure and health effect (WFFEHE) study was a 2-year repeated-measures study to investigate occupational exposures and acute and subacute health effects among wildland firefighters. This manuscript describes the study rationale, design, methods,…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety
Region(s): Northern Rockies, Rocky Mountain
Keywords: wildland firefighters, WFFEHE - Wildland Firefighter Exposure and Health Effect Study, cardiovascular, hearing loss, kidney, pulmonary effects, wildfire, firefighter exposure

Impact of short-term air pollution on respiratory infections: a time-series analysis of COVID-19 cases in California during the 2020 wildfire season

The 2020 California wildfire season coincided with the peak of the COVID-19 pandemic affecting many counties in California, with impacts on air quality. We quantitatively analyzed the short-term effect of air pollution on COVID-19 transmission using county-level data collected…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California
Keywords: air pollution, respiratory infections, COVID-19, environmental health, Generalized Additive Models, generalised least squares linear regression, wildfires, air quality, public health, AQI - Air Quality Index, CO - carbon monoxide, NO2 - nitrogen dioxide, PM2.5

Change of air quality knowledge, perceptions, attitudes, and practices pre- and post-wildfires in the United States

Amid worsening climate change, the recurrent wildfires have substantially worsened air quality in the Western United States (U.S.). Understanding the knowledge, attitudes, perception, and practices (KAPP) over time in response to natural disasters such as wildfires is crucial…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: wildfires, panel survey, air quality, knowledge, perceptions, attitudes, practices

Effects of wildfire ash from native and alien plants on phytoplankton biomass

Wildfires are natural or anthropogenic phenomena increasing at alarming rates globally due to land-use alterations, droughts, climatic warming, hunting and biological invasions. Whereas wildfire effects on terrestrial ecosystems are marked and relatively well-studied, ash…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Aquatic, Emissions and Smoke, Fire Effects
Region(s): International
Keywords: primary productivity, chlorophyll, silicate, diatoms, water chemistry, phytoplankton, Africa

Complexity in the evolution, composition, and spectroscopy of brown carbon in aircraft measurements of wildfire plumes

Biomass burning is a major source of light-absorbing organic aerosol (brown carbon), but its composition, chemical evolution, and lifetime are not well known. We measured water-soluble brown carbon absorption from 310–500 nm on the NOAA Twin Otter aircraft during flights…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Aviation, Emissions and Smoke, Monitoring and Inventory
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: FIREX‐AQ - Fire Influence on Regional to Global Environments and Air Quality, biomass burning, wildfire, brown carbon, aerosol absorption, fire plumes

Fire and ice: the impact of wildfire-affected albedo and irradiance on glacier melt

Wildfire occurrence and severity is predicted to increase in the upcoming decades with severe negative impacts on human societies. The impacts of upwind wildfire activity on glacier melt, a critical source of freshwater for downstream environments, were investigated through…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): International
Keywords: albedo, glacier melt, wildfire, Canada, Canadian Rockies, Athabasca Glacier

Fire-released seed dormancy - a global synthesis

Seed dormancy varies greatly between species, clades, communities, and regions. We propose that fireprone ecosystems create ideal conditions for the selection of seed dormancy as fire provides a mechanism for dormancy release and postfire conditions are optimal for germination.…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): International
Keywords: cerrado, Cistaceae, crown fire, Fabaceae, fire heat, Mediterranean, myrmecochory, Poaceae, Rhamnaceae, Rutaceae, savanna, seasonality, seed dormancy, surface fire

High spatiotemporal resolution PM2.5 concentration estimation with machine learning algorithm: a case study for wildfire in California

As an aggregate of suspended particulate matter in the air, atmospheric aerosols can affect the regional climate. With the help of satellite remote sensing technology to retrieve AOD (aerosol optical depth) on a global or regional scale, accurate estimation of PM2.5…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Safety
Region(s): California
Keywords: AOD - aerosol optical depth, PM - particulate matter, PM2.5, air quality, data fusion, wildfire, machine learning, algorithms, deep belief networks

Observational analyses of dry intrusions and increased ozone concentrations in the environment of wildfires

In this study, atmospheric dynamical processes, which govern the intensification of wildfire activity and the associated increase in low-level ozone concentrations, were studied using images, advanced products and vertical profiles derived from satellite observations. The…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping, Monitoring and Inventory
Region(s): International
Keywords: stratospheric intrusions, wildfires, O3 - ozone, ozone concentrations, satellite observations, water vapor imagery, Croatia, Italy

High northern latitude forest fires and vegetation emissions over the last millennium inferred from the chemistry of a central Greenland ice core

We have analyzed the soluble portion of impurities trapped in solid precipitation that accumulated at Summit (central Greenland) from 1193 A.D. to the present. Seventy-three ice layers show elevated concentrations of ammonium and formate, caused by high-latitude biomass burning…
Person:
Year: 1998
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire History
Region(s): International
Keywords: Greenland, ice cores, biomass burning, ion concentrations, boreal vegetation, paleoclimate

Wildfire smoke effects on lake-habitat specific metabolism: toward a conceptual understanding

The impacts of wildfire smoke on lake habitats remains unclear. We determined the metabolic response to smoke in the epi-pelagic and two littoral habitats in Castle Lake, California. We compared light regime, gross primary production, ecosystem respiration, and net ecosystem…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Aquatic, Emissions and Smoke, Fire Effects
Region(s): California
Keywords: lakes, habitat analysis

Simultaneous characterization of wildfire smoke and surface properties with imaging spectroscopy during the FIREX-AQ field campaign

We introduce and evaluate an approach for the simultaneous retrieval of aerosol and surface properties from Airborne Visible/Infrared Imaging Spectrometer Classic (AVIRIS-C) data collected during wildfires. The joint National Aeronautics and Space Administration/National Oceanic…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Northwest
Keywords: AVIRIS - Airborne Visible Infrared Imaging Spectrometer, air quality, Williams Flats Fire, Washington

Birth weight following pregnancy wildfire smoke exposure in more than 1.5 million newborns in Brazil: a nationwide case-control study

Background Air pollution exposure has been associated with critical neonatal morbidities, including low birth weight (LBW). However, little is known on short-term exposure to wildfire smoke and LBW. In this study, we estimated the association between birth weight following…
Person:
Year: 2022
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models, Safety
Region(s): International
Keywords: wildfire, air pollution, birth weight, pregnancy, Brazil, smoke exposure

Human-caused fires release more carbon than lightning-caused fires in the conterminous United States

Anthropogenic carbon emissions from fires impact the global carbon budget and contribute to global warming. However, due to the lack of inventory data, little was known about how carbon emissions differed between human-caused and lightning-caused fires previously. In this study…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects, Prescribed Fire
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest
Keywords: wildfire, carbon emissions, biomass burning, human-caused fires, burned area, drought, lightning-caused fires, climate change mitigation

Impacts of California’s climate-relevant land use policy scenarios on terrestrial carbon emissions (CO2 and CH4) and wildfire risk

Land-use and -cover change (LUCC) is globally important to climate change mitigation. However, using land-based strategies to support aggressive subnational greenhouse gas emissions reduction targets is challenging due to competing land use priorities and uncertainty in…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Hazard and Risk, Models
Region(s): California
Keywords: climate change, climate change mitigation, land use, greenhouse gas emissions, wildfire mitigation, terrestrial carbon, negative emissions, CALAND - California natural and working lands carbon and greenhouse gas model