Zobrazeno 1 - 10
of 87
pro vyhledávání: '"A Gannet Hallar"'
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:
S McKenzie Skiles, Derek V Mallia, A Gannet Hallar, John C Lin, Andrew Lambert, Ross Petersen, Steven Clark
Publikováno v:
Environmental Research Letters, Vol 13, Iss 12, p 124031 (2018)
The deposition of dust on snow accelerates melt by perturbing snow albedo, directly by darkening the snow surface and indirectly by enhancing snow grain growth. The snow darkening process impacts hydrology by shifting runoff timing and magnitude. Dus
Externí odkaz:
https://doaj.org/article/544bc58608444f47acd7e5231d95569f
Autor:
A Gannet Hallar, Noah P Molotch, Jenny L Hand, Ben Livneh, Ian B McCubbin, Ross Petersen, Joseph Michalsky, Douglas Lowenthal, Kenneth E Kunkel
Publikováno v:
Environmental Research Letters, Vol 12, Iss 1, p 014006 (2017)
Feedbacks between climate warming, land surface aridity, and wildfire-derived aerosols represent a large source of uncertainty in future climate predictions. Here, long-term observations of aerosol optical depth, surface level aerosol loading, fire-a
Externí odkaz:
https://doaj.org/article/cccfb1441ad84df9b6ec38b299c2af96
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.
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/
Publikováno v:
Scientific Reports. 12
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 American West
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