Zobrazeno 1 - 10
of 115
pro vyhledávání: '"E Dlugokencky"'
Autor:
L. Hu, D. Ottinger, S. Bogle, S. A. Montzka, P. L. DeCola, E. Dlugokencky, A. Andrews, K. Thoning, C. Sweeney, G. Dutton, L. Aepli, A. Crotwell
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 1437-1448 (2023)
Sulfur hexafluoride (SF6) is the most potent greenhouse gas (GHG), and its atmospheric abundance, albeit small, has been increasing rapidly. Although SF6 is used to assess atmospheric transport modeling and its emissions influence the climate for mil
Externí odkaz:
https://doaj.org/article/6ada461ec9fc4548b91bb3fdb48c4712
Autor:
S. Basu, X. Lan, E. Dlugokencky, S. Michel, S. Schwietzke, J. B. Miller, L. Bruhwiler, Y. Oh, P. P. Tans, F. Apadula, L. V. Gatti, A. Jordan, J. Necki, M. Sasakawa, S. Morimoto, T. Di Iorio, H. Lee, J. Arduini, G. Manca
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 15351-15377 (2022)
We have constructed an atmospheric inversion framework based on TM5-4DVAR to jointly assimilate measurements of methane and δ13C of methane in order to estimate source-specific methane emissions. Here we present global emission estimates from this f
Externí odkaz:
https://doaj.org/article/b81d586aaa1645f5a1ed00cd699032f5
Autor:
S. Maksyutov, T. Oda, M. Saito, R. Janardanan, D. Belikov, J. W. Kaiser, R. Zhuravlev, A. Ganshin, V. K. Valsala, A. Andrews, L. Chmura, E. Dlugokencky, L. Haszpra, R. L. Langenfelds, T. Machida, T. Nakazawa, M. Ramonet, C. Sweeney, D. Worthy
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 1245-1266 (2021)
We developed a high-resolution surface flux inversion system based on the global Eulerian–Lagrangian coupled tracer transport model composed of the National Institute for Environmental Studies (NIES) transport model (TM; collectively NIES-TM) and t
Externí odkaz:
https://doaj.org/article/3e284a7548914308a835a97ee9a934a6
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 805-827 (2020)
Changes in atmospheric methane abundance have implications for both chemistry and climate as methane is both a strong greenhouse gas and an important precursor for tropospheric ozone. A better understanding of the drivers of trends and variability in
Externí odkaz:
https://doaj.org/article/127f9ba6e3e04a779de3c6374e5800d6
Autor:
P. Bergamaschi, U. Karstens, A. J. Manning, M. Saunois, A. Tsuruta, A. Berchet, A. T. Vermeulen, T. Arnold, G. Janssens-Maenhout, S. Hammer, I. Levin, M. Schmidt, M. Ramonet, M. Lopez, J. Lavric, T. Aalto, H. Chen, D. G. Feist, C. Gerbig, L. Haszpra, O. Hermansen, G. Manca, J. Moncrieff, F. Meinhardt, J. Necki, M. Galkowski, S. O'Doherty, N. Paramonova, H. A. Scheeren, M. Steinbacher, E. Dlugokencky
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 901-920 (2018)
We present inverse modelling (top down) estimates of European methane (CH4) emissions for 2006–2012 based on a new quality-controlled and harmonised in situ data set from 18 European atmospheric monitoring stations. We applied an ensemble of sev
Externí odkaz:
https://doaj.org/article/b4e4add164f64c75a7b18523d9ebb0cd
Autor:
X. Lan, P. Tans, C. Sweeney, A. Andrews, A. Jacobson, M. Crotwell, E. Dlugokencky, J. Kofler, P. Lang, K. Thoning, S. Wolter
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 15151-15165 (2017)
This study analyzes seasonal and spatial patterns of column carbon dioxide (CO2) over North America, calculated from aircraft and tall tower measurements from the NOAA Global Greenhouse Gas Reference Network from 2004 to 2014. Consistent with expe
Externí odkaz:
https://doaj.org/article/a5f797af0194496c9ae8a9aa97d9bb7f
Autor:
M. Prokopiou, P. Martinerie, C. J. Sapart, E. Witrant, G. Monteil, K. Ishijima, S. Bernard, J. Kaiser, I. Levin, T. Blunier, D. Etheridge, E. Dlugokencky, R. S. W. van de Wal, T. Röckmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Iss 7, Pp 4539-4564 (2017)
N2O is currently the third most important anthropogenic greenhouse gas in terms of radiative forcing and its atmospheric mole fraction is rising steadily. To quantify the growth rate and its causes over the past decades, we performed a multi-site rec
Externí odkaz:
https://doaj.org/article/4741aab3e6af4dad90f89681c4118740
Autor:
A. Tsuruta, T. Aalto, L. Backman, J. Hakkarainen, I. T. van der Laan-Luijkx, M. C. Krol, R. Spahni, S. Houweling, M. Laine, E. Dlugokencky, A. J. Gomez-Pelaez, M. van der Schoot, R. Langenfelds, R. Ellul, J. Arduini, F. Apadula, C. Gerbig, D. G. Feist, R. Kivi, Y. Yoshida, W. Peters
Publikováno v:
Geoscientific Model Development, Vol 10, Iss 3, Pp 1261-1289 (2017)
We present a global distribution of surface methane (CH4) emission estimates for 2000–2012 derived using the CarbonTracker Europe-CH4 (CTE-CH4) data assimilation system. In CTE-CH4, anthropogenic and biospheric CH4 emissions are simultaneously esti
Externí odkaz:
https://doaj.org/article/8f333ef5e7ea4536834ec0c2ad1fb117
Autor:
Z. Tan, Q. Zhuang, D. K. Henze, C. Frankenberg, E. Dlugokencky, C. Sweeney, A. J. Turner, M. Sasakawa, T. Machida
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 12649-12666 (2016)
Understanding methane emissions from the Arctic, a fast-warming carbon reservoir, is important for projecting future changes in the global methane cycle. Here we optimized methane emissions from north of 60° N (pan-Arctic) regions using a nested-
Externí odkaz:
https://doaj.org/article/943f12cc305c452394a63e565eab4808
Autor:
J. McNorton, M. P. Chipperfield, M. Gloor, C. Wilson, W. Feng, G. D. Hayman, M. Rigby, P. B. Krummel, S. O'Doherty, R. G. Prinn, R. F. Weiss, D. Young, E. Dlugokencky, S. A. Montzka
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 7943-7956 (2016)
The growth in atmospheric methane (CH4) concentrations over the past 2 decades has shown large variability on a timescale of several years. Prior to 1999 the globally averaged CH4 concentration was increasing at a rate of 6.0 ppb yr−1, but durin
Externí odkaz:
https://doaj.org/article/142c3434a0254d57828bd2c4edf0a04a