i
Superseded
This Document Has Been Replaced By:
i
Retired
This Document Has Been Retired
i
Up-to-date Information
This is the latest update:
In situ measurements of water uptake by black carbon-containing aerosol in wildfire plumes
-
Published Date:
2017
-
Source:Journal of Geophysical Research-Atmospheres, 122(2), 1086-1097.
-
Details:
-
Personal Author:
-
Description:Water uptake by black carbon (BC)-containing aerosol was quantified in North American wildfire plumes of varying age (1 to similar to 40 h old) sampled during the SEAC(4)RS mission (2013). A Humidified Dual SP2 (HD-SP2) is used to optically size BC-containing particles under dry and humid conditions from which we extract the hygroscopicity parameter, kappa , of materials internally mixed with BC. Instrumental variability and the uncertainty of the technique are briefly discussed. An ensemble average kappa of 0.04 is found for the set of plumes sampled, consistent with previous estimates of bulk aerosol hygroscopicity from biomass burning sources. The temporal evolution of kappa in the Yosemite Rim Fire plume is explored to constrain the rate of conversion of BC-containing aerosol from hydrophobic to more hydrophilic modes in these emissions. A BC-specific kappa increase of similar to 0.06 over 40 h is found, fit well with an exponential curve corresponding to a transition from a kappa of 0 to a kappa of similar to 0.09 with an e-folding time of 29 h. Although only a few percent of wildfire particles contain BC, a similar kappa increase is estimated for bulk aerosol and the measured aerosol composition is used to infer that the observed kappa change is driven by a combination of incorporation of ammonium sulfate and oxidation of existing organic materials. Finally, a substantial fraction of wildfire-generated BC-containing aerosol is calculated to be active as cloud condensation nuclei shortly after emission likely indicating efficient wet removal. These results can constrain model treatment of BC from wildfire sources.
-
Document Type:
-
Main Document Checksum:urn:sha256:73d83ce100d3237711c190dd22866bc3ebb2dc431515fcbda10a939f82f83438
- File Type:
-
Supporting Files:No Additional Files
Related Documents:
-
-
Personal Author:Lerner, B. M.; Gilman, J. B.; Aikin, K. C.; Atlas, E. L.; Goldan, P. D.; Graus, M.; Hendershot, R.; Isaacman-VanWertz, G. A.; Koss, A.; Kuster, W. C.; Lueb, R. A.; McLaughlin, R. J.; Peischl, J.; Sueper, D.; Ryerson, T. B.; Tokarek, T. W.; Warneke, C.; Yuan, B.; de Gouw, J. A.;Published Date:2017Source:Atmospheric Measurement Techniques, 10(1), 291-313.Description:Volatile organic compounds were quantified during two aircraft-based field campaigns using highly automated, whole air samplers with expedited post-flight analysis via a new custom-built, field-deployable gas chromatography-mass spectrometry instrume...
Personal Author:Tevlin, A. G.; Li, Y.; Collett, J. L.; McDuffie, E. E.; Fischer, E. V.; Murphy, J. G.;Published Date:2017Source:Journal of Geophysical Research-Atmospheres, 122(22), 12468-12487.Description:Ammonia (NH3) mixing ratios were measured between the surface and 280m aboveground level from a moveable carriage at the Boulder Atmospheric Observatory tower in summer 2014 as part of the Front Range Air Pollution and Photochemistry Experiment. The ...
Personal Author:Colette, A.; Andersson, C.; Manders, A.; Mar, K.; Mircea, M.; Pay, M. T.; Raffort, V.; Tsyro, S.; Cuvelier, C.; Adani, M.; Bessagnet, B.; Bergstrom, R.; Briganti, G.; Butler, T.; Cappelletti, A.; Couvidat, F.; D'Isidoro, M.; Doumbia, T.; Fagerli, H.; Granier, C.; Heyes, C.; Klimont, Z.; Ojha, N.; Otero, N.; Schaap, M.; Sindelarova, K.; Stegehuis, A. I.; Roustan, Y.; Vautard, R.; van Meijgaard, E.; Vivanco, M. G.; Wind, P.;Published Date:2017Source:Geoscientific Model Development, 10(9), 3255-3276.Description:The EURODELTA-Trends multi-model chemistry-transport experiment has been designed to facilitate a better understanding of the evolution of air pollution and its drivers for the period 1990-2010 in Europe. The main objective of the experiment is to as...
Personal Author:Kille, N.; Baidar, S.; Handley, P.; Ortega, I.; Sinreich, R.; Cooper, O. R.; Hase, F.; Hannigan, J. W.; Pfister, G.; Volkamer, R.;Published Date:2017Source:Atmospheric Measurement Techniques, 10(1), 373-392.Description:We describe the University of Colorado mobile Solar Occultation Flux instrument (CU mobile SOF). The instrument consists of a digital mobile solar tracker that is coupled to a Fourier transform spectrometer (FTS) of 0.5 cm (-1) resolution and a UV-vi...
Personal Author:Giordano, M. R.; Kalnajs, L. E.; Avery, A.; Goetz, J. D.; Davis, S. M.; DeCarlo, P. F.;Published Date:2017Source:Atmospheric Chemistry and Physics, 17(1), 1-20.Description:Understanding the sources and evolution of aerosols is crucial for constraining the impacts that aerosols have on a global scale. An unanswered question in atmospheric science is the source and evolution of the Antarctic aerosol population. Previous ...
Personal Author:Sayers, M. J.; Grimm, A. G.; Shuchman, R. A.; Bosse, K. R.; Fahnenstiel, G. L.; Ruberg, S. A.; Leshkevich, G. A.;Published Date:2019Source:Journal of Great Lakes Research, 45(3), 508-521.Description:Blooms of harmful cyanobacteria (cyanoHABs) have occurred on an annual basis in western Lake Erie for more than a decade. Previously, we developed and validated an algorithm to map the extent of the submerged and surface scum components of cyanoHABs ...
Personal Author:Hill, M. C.; Bendlin, A. R.; Van Cise, A. M.; Milette-Winfree, A.; Ligon, A. D.; Ü, A. C.; Deakos, M. H.; Oleson, E. M.;Published Date:2019Source:Marine Mammal Science, 35(3), 797-824.Description:Abstract Little is known about short-finned pilot whales (Globicephala macrorhynchus) in the western North Pacific outside of Japanese coastal waters. To expand understanding of short-finned pilot whale ecology in the region, we conducted small-boat ...
Personal Author:Yamaguchi, T.; Feingold, G.; Larson, V. E.;Published Date:2017Source:Journal of Advances in Modeling Earth Systems, 9(1), 627-646.Description:Low and high clouds of shallow extent, especially stratocumulus and even more so for high-level cirrus clouds that reside where vertical resolution is particularly coarse, are poorly represented in large-scale models such as global climate models and...
Personal Author:Butler, A. H.; Sjoberg, J. P.; Seidel, D. J.; Rosenlof, K. H.;Published Date:2017Source:Earth System Science Data, 9(1), 63-76.Description:Major, sudden midwinter stratospheric warmings (SSWs) are large and rapid temperature increases in the winter polar stratosphere are associated with a complete reversal of the climatological westerly winds (i.e., the polar vortex). These extreme even...
Personal Author:Sayers, M. J.; Bosse, K. R.; Shuchman, R. A.; Ruberg, S. A.; Fahnenstiel, G. L.; Leshkevich, G. A.; Stuart, D. G.; Johengen, T. H.; Burtner, A. M.; Palladino, D.;Published Date:2019Source:Journal of Great Lakes Research, 45(3), 490-507.Description:Lake Erie has experienced dramatic changes in water quality over the past several decades requiring extensive monitoring to assess effectiveness of adaptive management strategies. Remote sensing offers a unique potential to provide synoptic monitorin...
Personal Author:Jensen, E. J.; Karcher, B.; Ueyama, R.; Pfister, L.; Bui, T. V.; Diskin, G. S.; DiGangi, J. P.; Woods, S.; Lawson, R. P.; Froyd, K. D.; Murphy, D. M.;Published Date:2018Source:Journal of Geophysical Research-Atmospheres, 123(21), 12210-12227.Description:Recent laboratory experiments have advanced our understanding of heterogeneous ice nucleation at low temperatures. We use these laboratory results, along with field measurements of aerosol composition, to constrain a parameterization of heterogeneous...
Personal Author:Stauffer, R. M.; Thompson, A. M.; Oltmans, S. J.; Johnson, B. J.;Published Date:2017Source:Journal of Geophysical Research-Atmospheres, 122(2), 1261-1280.Description:Much attention has been focused on the transport of ozone (O-3) to the western U.S., particularly given the latest revision of the National Ambient Air Quality Standard to 70 parts per billion by volume (ppbv) of O-3. This makes quantifying the contr...
Personal Author:Jathar, S. H.; Heppding, C.; Link, M. F.; Farmer, D. K.; Akherati, A.; Kleeman, M. J.; de Gouw, J. A.; Veres, P. R.; Roberts, J. M.;Published Date:2017Source:Atmospheric Chemistry and Physics, 17(14), 8959-8970.Description:Isocyanic acid (HNCO), an acidic gas found in tobacco smoke, urban environments, and biomass-burning-affected regions, has been linked to adverse health outcomes. Gasoline-and diesel-powered engines and biomass burning are known to emit HNCO and hypo...
Personal Author:Barkley, H. C.; Cohen, A. L.; Mollica, N. R.; Brainard, R. E.; Rivera, H. E.; DeCarlo, T. M.; Lohmann, G. P.; Drenkard, E. J.; Alpert, A. E.; Young, C. W.; Vargas-Ángel, B.; Lino, K. C.; Oliver, T. A.; Pietro, K. R.; Luu, V. H.;Published Date:2018Source:Communications Biology, 1(1), 177.Description:The oceans are warming and coral reefs are bleaching with increased frequency and severity, fueling concerns for their survival through this century. Yet in the central equatorial Pacific, some of the world’s most productive reefs regularly experie...
Personal Author:Yuan, B.; Coggon, M. M.; Koss, A. R.; Warneke, C.; Eilerman, S.; Peischl, J.; Aikin, K. C.; Ryerson, T. B.; de Gouw, J. A.;Published Date:2017Source:Atmospheric Chemistry and Physics, 17(8), 4945-4956.Description:Concentrated animal feeding operations (CAFOs) emit a large number of volatile organic compounds (VOCs) to the atmosphere. In this study, we conducted mobile laboratory measurements of VOCs, methane (CH4) and ammonia (NH3) downwind of dairy cattle, b...
Personal Author:Stutz, J.; Werner, B.; Spolaor, M.; Scalone, L.; Festa, J.; Tsai, C.; Cheung, R.; Colosimo, S. F.; Tricoli, U.; Raecke, R.; Hossaini, R.; Chipperfield, M. P.; Feng, W. H.; Gao, R. S.; Hintsa, E. J.; Elkins, J.; Moore, F. L.; Daube, B.; Pittman, J.; Wofsy, S.; Pfeilsticker, K.;Published Date:2017Source:Atmospheric Measurement Techniques, 10(3), 1017-1042.Description:Observations of atmospheric trace gases in the tropical upper troposphere (UT), tropical tropopause layer (TTL), and lower stratosphere (LS) require dedicated measurement platforms and instrumentation. Here we present a new limb-scanning Differential...
Personal Author:Palm, B. B.; Campuzano-Jost, P.; Day, D. A.; Ortega, A. M.; Fry, J. L.; Brown, S. S.; Zarzana, K. J.; Dube, W.; Wagner, N. L.; Draper, D. C.; Kaser, L.; Jud, W.; Karl, T.; Hansel, A.; Gutierrez-Montes, C.; Jimenez, J. L.;Published Date:2017Source:Atmospheric Chemistry and Physics, 17(8), 5331-5354.Description:Ambient pine forest air was oxidized by OH, O-3, or NO3 radicals using an oxidation flow reactor (OFR) during the BEACHON-RoMBAS (Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics and Nitrogen - Rocky Mountain Biogenic Aero...
Personal Author:Long, C. S.; Fujiwara, M.; Davis, S.; Mitchell, D. M.; Wright, C. J.;Published Date:2017Source:Atmospheric Chemistry and Physics, 17(23), 14593-14629.Description:Two of the most basic parameters generated from a reanalysis are temperature and winds. Temperatures in the reanalyses are derived from conventional (surface and balloon), aircraft, and satellite observations. Winds are observed by conventional syste...
Personal Author:Miller, C. C.; Jacob, D. J.; Marais, E. A.; Yu, K. R.; Travis, K. R.; Kim, P. S.; Fisher, J. A.; Zhu, L.; Wolfe, G. M.; Hanisco, T. F.; Keutsch, F. N.; Kaiser, J.; Min, K. E.; Brown, S. S.; Washenfelder, R. A.; Abad, G. G.; Chance, K.;Published Date:2017Source:Atmospheric Chemistry and Physics, 17(14), 8725-8738.Description:Glyoxal (CHOCHO) is produced in the atmosphere by the oxidation of volatile organic compounds (VOCs). Like formaldehyde (HCHO), another VOC oxidation product, it is measurable from space by solar backscatter. Isoprene emitted by vegetation is the dom...
Personal Author:Bruhwiler, L. M.; Basu, S.; Bergamaschi, P.; Bousquet, P.; Dlugokencky, E.; Houweling, S.; Ishizawa, M.; Kim, H. S.; Locatelli, R.; Maksyutov, S.; Montzka, S.; Pandey, S.; Patra, P. K.; Petron, G.; Saunois, M.; Sweeney, C.; Schwietzke, S.; Tans, P.; Weatherhead, E. C.;Published Date:2017Source:Journal of Geophysical Research-Atmospheres, 122(7), 4070-4083.Description:Recent studies have proposed significant increases in CH4 emissions possibly from oil and gas (O&G) production, especially for the U.S. where O&G production has reached historically high levels over the past decade. In this study, we show that an ens...
-