Výsledky vyhledávání - "James E. Dukett"

Long-Term Monitoring of Cloud Water Chemistry at Whiteface Mountain: The Emergence of a New Chemical Regime

Autor: Christopher E. Lawrence, Paul Casson, Richard Brandt, James J. Schwab, James E. Dukett, Phil Snyder, Elizabeth Yerger, Daniel Kelting, Trevor C. VandenBoer, Sara Lance

Atmospheric aqueous chemistry can have profound effects on our environment. The importance of chemistry within the atmospheric aqueous phase was first realized in the 1970s as there was growing concern over the negative impacts on ecosystem health fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b3ea50e8c321b94921227df7601a864
https://acp.copernicus.org/preprints/acp-2022-313/

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Atmospheric Chemistry Measurements at Whiteface Mountain, NY: Cloud Water Chemistry, Precipitation Chemistry, and Particulate Matter

Autor: Douglas Wolfe, Oliver V. Rattigan, James J. Schwab, Paul Casson, Vincent Dutkewicz, Kevin Civerolo, L. Husain, H. Dirk Felton, James E. Dukett, Kenneth L. Demerjian, Richard E. Brandt

Publikováno v: Aerosol and Air Quality Research. 16:841-854

Long-term records of condensed-phase chemical data are presented from the Adirondack Mountain region of northern New York, USA. These data records are particularly valuable due to the combinations of aerosol, cloud, and precipitation measurements. Ob

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::290c31e2c889cb2cf83a509a58234203
https://doi.org/10.4209/aaqr.2015.05.0344

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Biogenic, urban, and wildfire influences on the molecular composition of dissolved organic compounds in cloud water

Autor: Ryan D. Cook, Ying-Hsuan Lin, Zhuoyu Peng, Eric Boone, Rosalie K. Chu, James E. Dukett, Matthew J. Gunsch, Wuliang Zhang, Nikola Tolic, Alexander Laskin, Kerri A. Pratt

Organic aerosol formation and transformation occurs within aqueous aerosol and cloud droplets, yet little is known about the composition of high molecular weight organic compounds in cloud water. Cloud water samples collected at Whiteface Mountain, N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::faefec9ff2da3b33119e266bf542b82e
https://doi.org/10.5194/acp-2017-628

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Sequential derivatization of polar organic compounds in cloud water using O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride, N,O-bis(trimethylsilyl)trifluoroacetamide, and gas-chromatography/mass spectrometry analysis

Autor: Monica A. Mazurek, Harmonie Hawley, Jessica A. Sagona, James E. Dukett

Publikováno v: Journal of Chromatography A. 1362:16-24

Cloud water samples from Whiteface Mountain, NY were used to develop a combined sampling and gas chromatography-mass spectrometric (GCMS) protocol for evaluating the complex mixture of highly polar organic compounds (HPOC) present in this atmospheric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b175215e40cfcf3005291657f38ae5c0
https://doi.org/10.1016/j.chroma.2014.08.001

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Progress toward clean cloud water at Whiteface Mountain New York

Autor: Paul Casson, Nathan Houck, James E. Dukett, Philip Snyder, Nenad Aleksic, Michael Cantwell

Publikováno v: Atmospheric Environment. 45:6669-6673

Fossil fuel combustion is the primary source of anthropogenic acidity in cloud water. Since 1994 there is a measurable decrease in hydrogen, sulfate, and nitrate ion concentrations in cloud water collected at Whiteface Mountain. In this paper we asse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f6704bc353703eb637b54e10a3a433d1
https://doi.org/10.1016/j.atmosenv.2011.08.070

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Probabilistic relationship between liquid water content and ion concentrations in cloud water

Autor: James E. Dukett, Nenad Aleksic

Publikováno v: Atmospheric Research. 98:400-405

Within non-precipitating clouds, total ionic content (TIC) of cloud droplets decreases with increasing liquid water content (LWC). However, this is not a simple inverse relationship. Instead, TIC has an exponential distribution with a parameter that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a4f6c236f33151e0f9dfcd36a1cc194
https://doi.org/10.1016/j.atmosres.2010.08.003

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Analysis of cloud and precipitation chemistry at Whiteface Mountain, NY

Autor: James E. Dukett, Gopal Sistla, Karen M. Roy, Nathan Houck, Nenad Aleksic, Paul Casson

Publikováno v: Atmospheric Environment. 43:2709-2716

Federal and state programs over the past two decades have resulted in the reduction of emissions of precursors of acid rain. Concomitant with these changes, measured concentrations of acidity in precipitation and in watersheds have shown a downward t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad57763e4953d87af0cdc68c6ca63b15
https://doi.org/10.1016/j.atmosenv.2009.02.053

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Increases in dissolved organic carbon accelerate loss of toxic Al in Adirondack lakes recovering from acidification

Autor: Gregory B. Lawrence, Phillip Snyder, Susan B. Capone, Nathan Houck, James E. Dukett

Publikováno v: Environmental sciencetechnology. 47(13)

Increasing pH and decreasing Al in surface waters recovering from acidification have been accompanied by increasing concentrations of dissolved organic carbon (DOC) and associated organic acids that partially offset pH increases and complicate assess

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7683fe165a739cfec476c77fa2bc346
https://pubmed.ncbi.nlm.nih.gov/23751119

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