Zobrazeno 1 - 10
of 203
pro vyhledávání: '"Gannet Hallar"'
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract By producing a first-of-its-kind, decadal-scale wildfire plume rise climatology in the Western U.S. and Canada, we identify trends toward enhanced plume top heights, aerosol loading aloft, and near-surface smoke injection throughout the Amer
Externí odkaz:
https://doaj.org/article/e2acd3bcc0004477a4cb1604af2e9cbd
Publikováno v:
Environmental Research Letters, Vol 17, Iss 11, p 114014 (2022)
Over recent decades, wildfire activity across western North America has increased in concert with summertime air quality degradation in western US urban centers. Using a Lagrangian atmospheric modeling framework to simulate smoke transport for almost
Externí odkaz:
https://doaj.org/article/6f2bdf0a84a2495c931e32ddceea865f
Autor:
Onur Durmus, Ismail Gultepe, Zhaoxia Pu, Sebastian Hoch, Eric Pardyjak, Anna Gannet Hallar, Alexi Perelet
Freezing fog is a type of cold fog that forms when the air temperature (Ta) is below 0℃. Although Ta is below 0℃, the water droplets can remain in a liquid state rather than freezing. Freezing-fog conditions can pose a significant hazard to aviat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37a5f4b9b32a8de2cd2099dcca547b3b
https://doi.org/10.5194/egusphere-egu23-11108
https://doi.org/10.5194/egusphere-egu23-11108
Autor:
Noah S. Hirshorn, Lauren M. Zuromski, Christopher Rapp, Ian McCubbin, Gerardo Carrillo-Cardenas, Fangqun Yu, A. Gannet Hallar
New particle formation (NPF) events are defined as a sudden burst of aerosols followed by growth and can impact climate by growing to larger sizes and under proper conditions, potentially forming cloud condensation nuclei (CCN). Field measurements re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c744ae5d11be648fb82b6886de6d793
https://acp.copernicus.org/articles/22/15909/2022/
https://acp.copernicus.org/articles/22/15909/2022/
Autor:
Holly J. Oldroyd, Kerry E. Kelly, Daniel L. Mendoza, John C. Lin, Sebastian W. Hoch, Ian Faloona, Caroline C. Womack, Heather A. Holmes, Randal S. Martin, Kelley C. Barsanti, Jerome D. Fast, A. Gannet Hallar, D. Caulton, Francesca M. Hopkins, John D. Horel, James T. Kelly, William R. Simpson, Derek V. Mallia, Pablo E. Saide, Casey D. Bray, Steven S. Brown, Robert M. Banta, Logan Mitchell, Erik T. Crosman, Jochen Stutz, Ann M. Middlebrook, Cassandra J. Gaston, Viney P. Aneja, Joost A. de Gouw, Stephan F. J. De Wekker, Munkhbayar Baasandorj, Delphine K. Farmer, Neil P. Lareau, Keding Lu, Jennifer G. Murphy, Roy L. Mauldin, Christopher D. Cappa, Yelena L. Pichugina, Nakul N. Karle, Amy P. Sullivan, Britton B. Stephens, Kerri A. Pratt, Roya Bahreini, Philip J. Silva, Alan Brewer
Publikováno v:
Bulletin of the American Meteorological Society, vol 0, iss 10
Bull Am Meteorol Soc
Bull Am Meteorol Soc
Wintertime episodes of high aerosol concentrations occur frequently in urban and agricultural basins and valleys worldwide. These episodes often arise following development of persistent cold-air pools (PCAPs) that limit mixing and modify chemistry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4b288cc8f5a3de984cf99c338b85c35
https://doi.org/10.1175/bams-d-20-0017.1
https://doi.org/10.1175/bams-d-20-0017.1
Autor:
Anna L. Hodshire, Ezra J. T. Levin, A. Gannet Hallar, Christopher N. Rapp, Dan R. Gilchrist, Ian McCubbin, Gavin R. McMeeking
Ice nucleating particles (INPs) influence the timing and amount of precipitation in mixed-phase clouds by acting as seeds for supercooled liquid droplets to form ice upon. High-resolution, long-term measurements of ice nucleating particles (INPs) hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26fb86f46c6a99104cd5d066d5834a6d
https://amt.copernicus.org/preprints/amt-2022-216/
https://amt.copernicus.org/preprints/amt-2022-216/
Autor:
B. Friedman, A. Zelenyuk, J. Beranek, G. Kulkarni, M. Pekour, A. Gannet Hallar, I. B. McCubbin, J. A. Thornton, D. J Cziczo
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 23, Pp 11839-11851 (2013)
Measurements of cloud condensation nuclei (CCN) concentrations, single particle composition and size distributions at a high-elevation research site from March 2011 are presented. The temporal evolution of detailed single particle composition is com
Externí odkaz:
https://doaj.org/article/56028d26111a48d88c7f28d23588ad1b
Autor:
Larissa Lacher, Karl Froyd, Gannet Hallar, Ian McCubbin, Justin Jacquot, Carmen Dameto de Espana, Xiaoli Shen, Gregory Schill, Darin Baker, Thomas Leisner, Ottmar Möhler, Dan Cziczo
The presence of ice in mixed-phase clouds has a vital impact on their radiative properties, lifetime, and ability to precipitate. Ice crystal formation is initially induced by a rare subset of ambient aerosol particles called ice-nucleating particles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f76fbeda8e1500ba0c669eac8abc819
https://doi.org/10.5194/egusphere-egu22-13565
https://doi.org/10.5194/egusphere-egu22-13565