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  1. Enhanced biogenic emissions of nitric oxide and nitrous oxide following surface biomass burning

    Recent measurements indicate significantly enhanced biogenic soil emissions of both nitric oxide (NO) and nitrous oxide (N2O) following surface burning. These enhanced fluxes persisted for at least 6 months following the burn. Simultaneous measurements indicate enhanced levels of...

    Author(s):
    Iris C. Anderson; Joel S. Levine; Mark A. Poth; Philip J. Riggan
    Year:
    1988
    Keywords:
    chaparral, prescribed burning, fire, chamise, ceanothus, oak
    Source:
    Journal of Geophysical Research. 93(D4): 3893-3898

  2. Evaluation of biochars by temperature programmed oxidation/mass spectrometry

    Biochars produced from thermochemical conversions of biomass were evaluated by temperature programmed oxidation (TPO). This technique, used to characterize carbon deposits on petroleum cracking catalysts, provides information on the oxidative stability of carbonaceous solids, where higher temperature reactivity indicates greater structural order, an important property...

    Author(s):
    Michael Jackson; Thomas Eberhardt; Akwasi Boateng; Charles Mullen; Les Groom
    Year:
    2013
    Keywords:
    biochars, gasification, pyrolysis, torrefaction, temperature programmed oxidation
    Source:
    BioResources. 8(4):5461-5474.

  3. Oxidative aging and secondary organic aerosol formation from simulated wildfire emissions

    Wildfires are a significant fraction of global biomass burning and a major source of trace gas and particle emissions in the atmosphere. Understanding the air quality and climate implications of wildfires is difficult since the emissions undergo complex transformations due to aging processes during transport away from the source. As part of the third Fire Lab at...

    Author(s):
    C. J. Hennigan; M. A. Miracolo; G. J. Engelhart; A. A. May; Cyle Wold; WeiMin Hao; T. Lee; A. P. Sullivan; J. B. Gilman; W. C. Kuster; J. A. de Gouw; J. L. Collett; S. M. Kreidenweis; A. L. Robinson
    Year:
    2010
    Keywords:
    aerosols, particles, troposphere composition and chemistry
    Source:
    American Geophysical Union. Fall Meeting: Abstract #A22A-05.

  4. Mathematical model of a smoldering log.

    A mathematical model is developed describing the natural smoldering of logs. It is considered the steady one dimensional propagation of infinitesimally thin fronts of drying, pyrolysis, and char oxidation in a horizontal semi-infinite log. Expressions for the burn rates, distribution profiles of temperature, and positions of the drying, pyrolysis, and smoldering fronts...

    Author(s):
    Fernando de Souza Costa; David Sandberg
    Year:
    2004
    Keywords:
    fire, smoke, smoldering, log, Mathematical model, Wood, char
    Source:
    Combustion and Flame. 139: 227-238

  5. Wildland fire emissions, carbon, and climate: Emission factors

    While the vast majority of carbon emitted by wildland fires is released as CO2, CO, and CH4, wildland fire smoke is nonetheless a rich and complex mixture of gases and aerosols. Primary emissions include significant amounts of CH4 and aerosol (organic aerosol and black carbon), which are short-lived climate forcers. In addition to CO2 and short-lived climate forcers,...

    Author(s):
    Shawn Urbanski
    Year:
    2014
    Keywords:
    biomass burning, greenhouse gases, emission factors
    Source:
    Forest Ecology and Management. 317: 51-60.

  6. Vertical distribution and persistence of soil organic carbon in fire-adapted longleaf pine forests

    Longleaf pine (Pinus palustris Miller) forests in the southern United States are being restored and actively managed for a variety of goals including: forest products, biodiversity, C sequestration and forest resilience in the face of repeated isturbances from hurricanes and climate change. Managed southern pine forests can be sinks for atmospheric...

    Author(s):
    John R. Butnor; Lisa J. Samuelson; Kurt H. Johnsen; Peter H. Anderson; Carlos A. Gonzalez Benecke; Claudia M. Boot; M. Francesca Cotrufo; Katherine A. Heckman; Jason A. Jackson; Thomas A. Stokes; Stanley J. Zarnoch
    Year:
    2017
    Keywords:
    C stocks Pinus palustris, longleaf pine, Prescribed fire, Pyrogenic C, PyC, Radiocarbon, Soil carbon
    Source:
    Forest Ecology and Management

  7. Projections of emissions from burning of biomass foruse in studies of global climate and atmospheric chemistry

    Emissions of trace gases and particulate matter from burning of biomass are generally factored into global climate models. Models for improving the estimates of the global annual release of emissions from biomass fires are presented. Estimates of total biomass consumed on a global basis range from 2 to 10 Pg (1 petagram = 1015 g) per year. New...

    Author(s):
    Darold E. Ward; Weimin Hao
    Year:
    1991
    Keywords:
    emissions, trace gases, global climate, atmospheric chemistry
    Source:
    Paper 91-128.4. Presented at the 84th Annual Meeting and Exhibition; Vancouver, British Columbia; June 16-21, 1991. Air and Waste Management Association. 16 p.

  8. The role of moisture on combustion of pyrolysis gases in wildland fires

    The role of water vapor, originated from the moisture content in vegetation, on the combustion process was investigated via simulating an opposed diffusion flame and a laminar premixed flame with pyrolysis gases as the fuel and air as the oxidizer. The fuel was mixed with water vapor, and the simulation was repeated for various water mole fractions. In both of the...

    Author(s):
    Selina C. Ferguson; Ambarish Dahale; Babak Shotorban; S. Mahalingam; David R. Weise
    Year:
    2013
    Keywords:
    Pyrolysis, Wildland fire
    Source:
    Combustion Science and Technology. 185(3): 435-453

  9. Toward the improvement of total nitrogen deposition budgets in the United States

    Frameworks for limiting ecosystem exposure to excess nutrients and acidity require accurate and complete deposition budgets of reactive nitrogen (Nr). While much progress has been made in developing total Nr deposition budgets for the U.S., current budgets remain limited by key data and knowledge gaps. Analysis of National Atmospheric Deposition Program Total...

    Author(s):
    J.T. Walker; G. Beachley; H.M. Amos; J.S. Baron; J. Bash; R. Baumgardner; M.D. Bell; K.B. Benedict; X. Chen; D.W. Clow; A. Cole; J.G. Coughlin; K. Cruz; R.W. Daly; S.M. Decina; E.M. Elliott; M.E. Fenn; L. Ganzeveld; K. Gebhart; S.S. Isil; B.M. Kerschner; R.S. Larson; T. Lavery; G.G. Lear; T. Macy; M.A. Mast; K. Mishoe; K.H. Morris; P.E. Padgett; R.V. Pouyat; M. Puchalski; H.O.T. Pye; A.W. Rea; M.F. Rhodes; C.M. Rogers; R. Saylor; R. Scheffe; B.A. Schichtel; D.B. Schwede; G.A. Sexstone; B.C. Sive; R. Sosa; P.H. Templer; T. Thompson; D. Tong; G.A. Wetherbee; T.H. Whitlow; Z. Wu; Z. Yu; L. Zhang
    Year:
    2019
    Keywords:
    Reactive nitrogen, Wet deposition, Dry deposition, Ammonia, Organic nitrogen, Oxidized nitrogen
    Source:
    Science of The Total Environment. 691: 1328-1352

  10. Development and demonstration of smoke plume, fire emissions, and pre- and postprescribed fire fuel models on North Carolina Coastal Plain forest ecosystems

    Wildland fuels have been accumulating in the United States during at least the past half-century due to wildland fire management practices and policies. The additional fuels contribute to intense fire behavior, increase the costs of wildland fire control, and contribute to the degradation of local and regional air quality. The management of prescribed and wildland fire...

    Author(s):
    Robert A. Mickler; Miriam Rorig; Christopher D. Geron; Gary L. Achtemier; Andrew D. Bailey; Candice Krull; David Brownlie
    Year:
    2007
    Keywords:
    wildland fire management, wildland fuels, BlueSky smoke prediction modeling framework, BlueSky Rapid Access Information System (BlueSkyRAINS
    Source:
    In: Butler, Bret W.; Cook, Wayne, comps. The fire environment--innovations, management, and policy; conference proceedings. 26-30 March 2007; Destin, FL. Proceedings RMRS-P-46CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. CD-ROM. p. 409-426

  11. Airborne monitoring and smoke characterization of prescribed fires on forest lands in western Washington and Oregon.

    Detailed airborne measure ments of smoke plumes from seven prescribed burns of forest biomass residues leftover from timber harvests in Washington and Oregon are described. Measurements of particle size distributions in the plumes at 3.3 km downwind of the burns showed a prominent peak in the mass concentration for particles 0.25-0.30 µm in diameter. The total mass of...

    Author(s):
    Lawrence F. Radke; Jamie H. Lyons; Peter V. Hobbs; Dean A. Hegg; David V. Sandberg; Darold E. Ward
    Year:
    1990
    Keywords:
    Emissions, prescribed burning, smoke management
    Source:
    Gen. Tech. Rep. PNW-GTR-251. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 81 p

  12. Trace gas emissions from a mid-latitude prescribed chaparral fire

    Gas samples were collected in smoke plumes over the San Dimas Experimental Forest during a 400-acre prescribed chaparral fire on December 12, 1986. A helicopter was used to collect gas samples over areas of vigorous flaming combustion and over areas of mixed stages (vigorous/transitional/smoldering) of combustion. Sampling was conducted at altitudes as low as 35 m and...

    Author(s):
    Wesley R. Cofer; Joel S. Levine; Philip J. Riggan; Daniel I. Sebacher; Edward L. Winstead; Shaw Edwin F.; James A. Brass; Vincent. G. Ambrosia
    Year:
    1988
    Keywords:
    Source:
    J. Geophys. Res., 93(D2), 1653–1658

  13. Combined global change effects on ecosystem processes in nine U.S

    Concurrent changes in climate, atmospheric nitrogen (N) deposition, and increasing levels of atmospheric carbon dioxide (CO2) affect ecosystems in complex ways. The DayCent-Chem model was used to investigate the combined effects of these human-caused drivers of change over the period 1980–2075 at seven forested montane and two alpine watersheds...

    Author(s):
    Melannie D. Hartman; Jill S. Baron; Holly A. Ewing; Kathleen C. Weathers; Chelcy Miniat
    Year:
    2014
    Keywords:
    Source:
    Biogeochemistry.

  14. Measurement of pyrolysis products from mixed fuel beds during fires in a wind tunnel

    Pyrolysis of intact wildland fuels in the southern United States is being measured at bench, wind tunnel, and field scales as part of a larger research project to measure and model pyrolysis of wildland fuels to improve models used to predict prescribed fire behavior. Traditional pyrolysis experiments typically use dried, ground samples in either an inert or oxidizing...

    Author(s):
    David R. Weise; Timothy J. Johnson; WeiMin Hao; Marko Princevac; Nicole Scharko; Ashley Oeck; Tanya L. Myers; Steve Baker; Emily Lincoln; AmirHessam Aminfar
    Year:
    2018
    Keywords:
    pyrolysis, longleaf, fetterbush, inkberry, sparkleberry, background-oriented Schlieren
    Source:
    Advances in Forest Fire Research 2018. Coimbra, Portugal: Imprensa da Universidade de Coimbra: 534-541

  15. Evolution of trace gases and particles emitted by a chaparral fire in California

    Biomass burning (BB) is a major global source of trace gases and particles. Accurately representing the production and evolution of these emissions is an important goal for atmospheric chemical transport models. We measured a suite of gases and aerosols emitted from an 81 hectare prescribed fire in chaparral fuels on the central coast of California, US on 17 November...

    Author(s):
    S. K. Akagi; J. S. Craven; J. W. Taylor; G. R. McMeeking; R. J. Yokelson; I. R. Burling; S. P. Urbanski; C. E. Wold; J. H. Seinfeld; H. Coe; M. J. Alvarado; D. R. Weise
    Year:
    2012
    Keywords:
    Source:
    Atmos. Chem. Phys., 12, 1397-1421
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