Zobrazeno 1 - 10
of 104
pro vyhledávání: '"P. F. Weiss"'
Autor:
B. Hmiel, V. V. Petrenko, C. Buizert, A. M. Smith, M. N. Dyonisius, P. Place, B. Yang, Q. Hua, R. Beaudette, J. P. Severinghaus, C. Harth, R. F. Weiss, L. Davidge, M. Diaz, M. Pacicco, J. A. Menking, M. Kalk, X. Faïn, A. Adolph, I. Vimont, L. T. Murray
Publikováno v:
The Cryosphere, Vol 18, Pp 3363-3382 (2024)
Measurements of carbon-14-containing carbon monoxide (14CO) in glacial ice are useful for studies of the past oxidative capacity of the atmosphere as well as for reconstructing the past cosmic ray flux. The 14CO abundance in glacial ice represents th
Externí odkaz:
https://doaj.org/article/71cf927c464e490191c66579b882b0c2
Autor:
H. Choi, A. L. Redington, H. Park, J. Kim, R. L. Thompson, J. Mühle, P. K. Salameh, C. M. Harth, R. F. Weiss, A. J. Manning, S. Park
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 7309-7330 (2024)
Hydrofluorocarbons (HFCs) are powerful anthropogenic greenhouse gases (GHGs) with high global-warming potentials (GWPs). They have been widely used as refrigerants, insulation foam-blowing agents, aerosol propellants, and fire suppression agents. Sin
Externí odkaz:
https://doaj.org/article/58ea95f2161746c08f62f5baaeb71f59
Autor:
Minde An, Ronald G. Prinn, Luke M. Western, Xingchen Zhao, Bo Yao, Jianxin Hu, Anita L. Ganesan, Jens Mühle, Ray F. Weiss, Paul B. Krummel, Simon O’Doherty, Dickon Young, Matthew Rigby
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Sulfur hexafluoride (SF6) is a potent greenhouse gas. Here we use long-term atmospheric observations to determine SF6 emissions from China between 2011 and 2021, which are used to evaluate the Chinese national SF6 emission inventory and to b
Externí odkaz:
https://doaj.org/article/d6e15d3ba14b4956ae57324b853c62fb
Autor:
R. L. Thompson, S. A. Montzka, M. K. Vollmer, J. Arduini, M. Crotwell, P. B. Krummel, C. Lunder, J. Mühle, S. O'Doherty, R. G. Prinn, S. Reimann, I. Vimont, H. Wang, R. F. Weiss, D. Young
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 1415-1427 (2024)
The hydroxyl radical (OH) largely determines the atmosphere's oxidative capacity and, thus, the lifetimes of numerous trace gases, including methane (CH4). Hitherto, observation-based approaches for estimating the atmospheric oxidative capacity have
Externí odkaz:
https://doaj.org/article/0467fd6daab0449680c82033f964adfd
Autor:
H. Park, J. Kim, H. Choi, S. Geum, Y. Kim, R. L. Thompson, J. Mühle, P. K. Salameh, C. M. Harth, K. M. Stanley, S. O'Doherty, P. J. Fraser, P. G. Simmonds, P. B. Krummel, R. F. Weiss, R. G. Prinn, S. Park
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 9401-9411 (2023)
Trifluoromethane (CHF3, HFC-23), one of the most potent greenhouse gases among hydrofluorocarbons (HFCs), is mainly emitted to the atmosphere as a by-product in the production of the ozone-depleting legacy refrigerant and chemical feedstock chlorodif
Externí odkaz:
https://doaj.org/article/e4d1d5230ba84f958c338a7c1f6bd8b3
Autor:
A. L. Redington, A. J. Manning, S. Henne, F. Graziosi, L. M. Western, J. Arduini, A. L. Ganesan, C. M. Harth, M. Maione, J. Mühle, S. O'Doherty, J. Pitt, S. Reimann, M. Rigby, P. K. Salameh, P. G. Simmonds, T. G. Spain, K. Stanley, M. K. Vollmer, R. F. Weiss, D. Young
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 7383-7398 (2023)
Production and consumption of CFC-11 (trichlorofluoromethane, CCl3F), CFC-12 (dichlorodifluoromethane, CCl2F2) and CCl4 (carbon tetrachloride) are controlled under the regulations of the Montreal Protocol and have been phased out globally since 2010.
Externí odkaz:
https://doaj.org/article/c6e6eeaae9884ee09f1790beb653f3df
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 18, Pp n/a-n/a (2023)
Abstract Hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs) are potent greenhouse gases regulated under the Montreal Protocol and its amendments. Emission estimates generally use constant atmospheric lifetimes accounting for loss via hydr
Externí odkaz:
https://doaj.org/article/85b594931dc9490ea58ebbc9841bfdb6
Autor:
M. N. Dyonisius, V. V. Petrenko, A. M. Smith, B. Hmiel, P. D. Neff, B. Yang, Q. Hua, J. Schmitt, S. A. Shackleton, C. Buizert, P. F. Place, J. A. Menking, R. Beaudette, C. Harth, M. Kalk, H. A. Roop, B. Bereiter, C. Armanetti, I. Vimont, S. Englund Michel, E. J. Brook, J. P. Severinghaus, R. F. Weiss, J. R. McConnell
Publikováno v:
The Cryosphere, Vol 17, Pp 843-863 (2023)
Cosmic rays entering the Earth's atmosphere produce showers of secondary particles such as protons, neutrons, and muons. The interaction of these particles with oxygen-16 (16O) in minerals such as ice and quartz can produce carbon-14 (14C). In glacia
Externí odkaz:
https://doaj.org/article/07c7e30c42454b0aa85d33a5ab319094
Autor:
Pamela F. Weiss, Cora E. Sears, Timothy G. Brandon, Christopher B. Forrest, Emily Neu, Melanie Kohlheim, Jenny Leal, Rui Xiao, Daniel Lovell
Publikováno v:
Trials, Vol 24, Iss 1, Pp 1-12 (2023)
Abstract Background The effectiveness of biologic therapies, primarily tumor necrosis factor inhibitors (TNFi), for children with spondyloarthritis (SpA) has made inactive disease a realistic patient outcome. However, biologic therapies are costly, p
Externí odkaz:
https://doaj.org/article/d1702cf8534e4c1ebb23eaa08b57fc0c
Autor:
Emily Neu, Cora Sears, Timothy Brandon, Melanie Kohlheim, Jenny Leal, Kweli Archie, English Holland, Miles Holland, Aamena Hameed, Asad Khan, Lynn Murphy, Sean Murphy, Antoinette Neu, Jerome Neu, Justin Neu, Rachel Richmond, Dylan Suplee, Theresa Suplee, Christopher B. Forrest, Pamela F. Weiss
Publikováno v:
Health Expectations, Vol 26, Iss 1, Pp 290-296 (2023)
Abstract Background The Biologic Abatement and Capturing Kids’ Outcomes and Flare Frequency in Juvenile Spondyloarthritis (BACK‐OFF JSpA) study is a randomized, pragmatic trial investigating different tumour necrosis factor inhibitor de‐escalat
Externí odkaz:
https://doaj.org/article/9a741fbfd6f645b48acb5f4ebe14e8e3