Zobrazeno 1 - 10
of 18
pro vyhledávání: '"B. H. Vaughn"'
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 4831-4851 (2022)
Atmospheric CH4 mole fractions resumed their increase in 2007 after a plateau during the 1999–2006 period, indicating relative changes in the sources and sinks. Estimating sources by exploiting observations within an inverse modeling framework (top
Externí odkaz:
https://doaj.org/article/90e842cee0064cb3b49fa62b204903d6
Autor:
K. S. Rozmiarek, B. H. Vaughn, T. R. Jones, V. Morris, W. B. Skorski, A. G. Hughes, J. Elston, S. Wahl, A.-K. Faber, H. C. Steen-Larsen
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 7045-7067 (2021)
Above polar ice sheets, atmospheric water vapor exchange occurs across the planetary boundary layer (PBL) and is an important mechanism in a number of processes that affect the surface mass balance of the ice sheets. Yet, this exchange is not well un
Externí odkaz:
https://doaj.org/article/81378edbb50e42438ebc614f4a537b43
Autor:
A. G. Hughes, T. R. Jones, B. M. Vinther, V. Gkinis, C. M. Stevens, V. Morris, B. H. Vaughn, C. Holme, B. R. Markle, J. W. C. White
Publikováno v:
Climate of the Past, Vol 16, Pp 1369-1386 (2020)
An ice core drilled on the Renland ice cap in east-central Greenland contains a continuous climate record dating through the last glacial period. The Renland record is valuable because the coastal environment is more likely to reflect regional sea su
Externí odkaz:
https://doaj.org/article/ff08b6035e5b48fbb1e87a8773de33b3
Autor:
I. J. Vimont, J. C. Turnbull, V. V. Petrenko, P. F. Place, C. Sweeney, N. Miles, S. Richardson, B. H. Vaughn, J. W. C. White
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 8547-8562 (2019)
Atmospheric carbon monoxide (CO) is a key player in global atmospheric chemistry and a regulated pollutant in urban areas. Oxidation of volatile organic compounds (VOCs) is an important component of the global CO budget and has also been hypothesized
Externí odkaz:
https://doaj.org/article/c98dc7261cc84df097972299b4e2c975
Publikováno v:
Climate of the Past, Vol 15, Pp 893-912 (2019)
This study examines the stable water isotope signal (δ18O) of three ice cores drilled on the Renland peninsula (east Greenland coast). While ice core δ18O measurements qualitatively are a measure of the local temperature history, the δ18O variabil
Externí odkaz:
https://doaj.org/article/8a0e5b282c9a4290bc3e874581fd1304
Autor:
T. Umezawa, C. A. M. Brenninkmeijer, T. Röckmann, C. van der Veen, S. C. Tyler, R. Fujita, S. Morimoto, S. Aoki, T. Sowers, J. Schmitt, M. Bock, J. Beck, H. Fischer, S. E. Michel, B. H. Vaughn, J. B. Miller, J. W. C. White, G. Brailsford, H. Schaefer, P. Sperlich, W. A. Brand, M. Rothe, T. Blunier, D. Lowry, R. E. Fisher, E. G. Nisbet, A. L. Rice, P. Bergamaschi, C. Veidt, I. Levin
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 1207-1231 (2018)
We report results from a worldwide interlaboratory comparison of samples among laboratories that measure (or measured) stable carbon and hydrogen isotope ratios of atmospheric CH4 (δ13C-CH4 and δD-CH4). The offsets among the laboratories are lar
Externí odkaz:
https://doaj.org/article/8d7ca1e1efab4853a04931977e796bf9
Autor:
I. R. van der Velde, J. B. Miller, M. K. van der Molen, P. P. Tans, B. H. Vaughn, J. W. C. White, K. Schaefer, W. Peters
Publikováno v:
Geoscientific Model Development, Vol 11, Pp 283-304 (2018)
To improve our understanding of the global carbon balance and its representation in terrestrial biosphere models, we present here a first dual-species application of the CarbonTracker Data Assimilation System (CTDAS). The system's modular design a
Externí odkaz:
https://doaj.org/article/eccf464858e740f1a07d6c9eac03d480
Autor:
H. Graven, C. E. Allison, D. M. Etheridge, S. Hammer, R. F. Keeling, I. Levin, H. A. J. Meijer, M. Rubino, P. P. Tans, C. M. Trudinger, B. H. Vaughn, J. W. C. White
Publikováno v:
Geoscientific Model Development, Vol 10, Pp 4405-4417 (2017)
The isotopic composition of carbon (Δ14C and δ13C) in atmospheric CO2 and in oceanic and terrestrial carbon reservoirs is influenced by anthropogenic emissions and by natural carbon exchanges, which can respond to and drive changes in climate. S
Externí odkaz:
https://doaj.org/article/cd556e67cc3e489eb68316f7697af139
Autor:
T. R. Jones, J. W. C. White, E. J. Steig, B. H. Vaughn, V. Morris, V. Gkinis, B. R. Markle, S. W. Schoenemann
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Iss 2, Pp 617-632 (2017)
Water isotopes in ice cores are used as a climate proxy for local temperature and regional atmospheric circulation as well as evaporative conditions in moisture source regions. Traditional measurements of water isotopes have been achieved using magne
Externí odkaz:
https://doaj.org/article/2c405ab3b7194f6e8248da879756824d
Autor:
N. J. Warwick, M. L. Cain, R. Fisher, J. L. France, D. Lowry, S. E. Michel, E. G. Nisbet, B. H. Vaughn, J. W. C. White, J. A. Pyle
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 14891-14908 (2016)
We present a global methane modelling study assessing the sensitivity of Arctic atmospheric CH4 mole fractions, δ13C-CH4 and δD-CH4 to uncertainties in Arctic methane sources. Model simulations include methane tracers tagged by source and isotop
Externí odkaz:
https://doaj.org/article/ec199fc373c44ff8bfa74b2ea4d8b2b3