Výsledky vyhledávání - "Simone T, Andersen"

Fundamental oxidation processes in the remote marine atmosphere investigated using the NO–NO2–O3 photostationary state

Autor: Simone T. Andersen, Beth S. Nelson, Katie A. Read, Shalini Punjabi, Luis Neves, Matthew J. Rowlinson, James Hopkins, Tomás Sherwen, Lisa K. Whalley, James D. Lee, Lucy J. Carpenter

Publikováno v: Atmospheric Chemistry and Physics. 22:15747-15765

The photostationary state (PSS) equilibrium between NO and NO2 is reached within minutes in the atmosphere and can be described by the PSS parameter, φ. Deviations from expected values of φ have previously been used to infer missing oxidants in div

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8165c06605511a7696bbebe6cad42ee4
https://doi.org/10.5194/acp-22-15747-2022

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NO3 reactivity in a temperate forest impacted by anthropogenic and biogenic emissions during the ACROSS campaign

Autor: Patrick Dewald, Simone T. Andersen, Gunther N.T.E. Tuerk, Jan Schuladen, Tobias Seubert, John N. Crowley

Terpenoids are readily released into the environment via biogenic emissions. One of their major nighttime oxidizing agent is the nitrate radical (NO3), which is formed from the reaction between ozone (O3) and nitrogen dioxide (NO2). The NO3-initiated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ccacc4787569fb708e10e3ca40e5c80
https://doi.org/10.5194/egusphere-egu23-5061

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First ground-deployment of a new small-footprintcavity-ring-down spectrometer for NO3 and N2O5 in a temperate forest during the ACROSS campaign

Autor: Gunther N. T. E. Türk, Simone T. Andersen, Patrick Dewald, Jan Schuladen, Tobias Seubert, John N. Crowley

At nighttime, when concentrations of the OH-radical are low, the nitrate radical, NO3, over takes the role of major initiator of the oxidation of many organic trace gases, especially those containing one or more double bonds. In contrast to daytime,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be31c8c83a2c3b5a7d1309d6d995af04
https://doi.org/10.5194/egusphere-egu23-5240

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Extensive field evidence for the release of HONO from the photolysis of nitrate aerosols

Publikováno v: Science Advances. 9

Particulate nitrate ( pNO 3 − ) has long been considered a permanent sink for NO x (NO and NO 2 ), removing a gaseous pollutant that is central to air quality and that influences the global self-cleansing capacity of the atmosphere. Evidence is eme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90aba41dbc5fe58c1fad464eb4247487
https://doi.org/10.1126/sciadv.add6266

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Long-term NOx measurements in the remote marine tropical troposphere

Autor: Chris Reed, Luis Neves, Matthew J. Rowlinson, Lucy J. Carpenter, Simone T. Andersen, James D. Lee, Martyn W. Ward, Beth S. Nelson, Katie A. Read

Publikováno v: Atmospheric Measurement Techniques. 14:3071-3085

Atmospheric nitrogen oxides (NO + NO 2 = NO x ) have been measured at the Cape Verde Atmospheric Observatory (CVAO) in the tropical Atlantic (16 ∘ 51 ′ N, 24 ∘ 52 ′ W) since October 2006. These measurements represent a unique time series of N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9075c033b1e02c91c0a8002772d9a826
https://doi.org/10.5194/amt-14-3071-2021

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Long-term NOx measurements in the remote marine tropical troposphere

Autor: Simone T. Andersen, Lucy J. Carpenter, Beth S. Nelson, Luis Neves, Katie A. Read, Chris Reed, Martyn Ward, Matthew J. Rowlinson, James D. Lee

Atmospheric nitrogen oxides (NO + NO2 = NOx) have been measured at the Cape Verde Atmospheric Observatory (CVAO) in the tropical Atlantic (16° 51' N, 24° 52' W) since October 2006. These measurements represent a unique time series of NOx in the bac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b7713bceb349bb70cdf78eb3443041b
https://doi.org/10.5194/amt-2020-469

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Measurement of NOx and Ozone over the North Atlantic Ocean

Autor: Dominika Pasternak, Simone T. Andersen, Alexander T. Archibald, James D. Lee, James R. Hopkins, Freya Squires

Tropospheric ozone (O3) can adversely affect human health and environmental ecosystems and it is therefore vitally important to understand its formation pathways from both natural and anthropogenic precursors. Background O3 levels in the Northern Hem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::246991dd5f394e8b5963186ff42005d4
https://doi.org/10.5194/egusphere-egu2020-8233

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Quantum Yields and N

Autor: Weihong, Wang, Kifle Z, Aregahegn, Simone T, Andersen, Anton Z, Ni, Andrea F, Rohrbacher, Ole John, Nielsen, Barbara J, Finlayson-Pitts

Publikováno v: Journal of agricultural and food chemistry. 67(6)

Neonicotinoids (NN), first introduced in 1991, are found on environmental surfaces where they undergo photolytic degradation. Photolysis studies of thin films of NN were performed using two approaches: (1) transmission FTIR, in which solid films of N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e64e147447209af1a3cc7636d8050cf0
https://pubmed.ncbi.nlm.nih.gov/30698961

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