Zobrazeno 1 - 10
of 41
pro vyhledávání: '"E. J. Brook"'
Autor:
J. A. Epifanio, E. J. Brook, C. Buizert, E. C. Pettit, J. S. Edwards, J. M. Fegyveresi, T. A. Sowers, J. P. Severinghaus, E. C. Kahle
Publikováno v:
The Cryosphere, Vol 17, Pp 4837-4851 (2023)
The total air content (TAC) of polar ice cores has long been considered a potential proxy for past ice sheet elevation. Recent work, however, has shown that a variety of other factors also influence this parameter. In this paper we present a high-res
Externí odkaz:
https://doaj.org/article/7134deed9aa94af9a8683c94ce1e6d57
Autor:
X. Faïn, D. M. Etheridge, K. Fourteau, P. Martinerie, C. M. Trudinger, R. H. Rhodes, N. J. Chellman, R. L. Langenfelds, J. R. McConnell, M. A. J. Curran, E. J. Brook, T. Blunier, G. Teste, R. Grilli, A. Lemoine, W. T. Sturges, B. Vannière, J. Freitag, J. Chappellaz
Publikováno v:
Climate of the Past, Vol 19, Pp 2287-2311 (2023)
Carbon monoxide (CO) is a naturally occurring atmospheric trace gas, a regulated pollutant, and one of the main components determining the oxidative capacity of the atmosphere. Evaluating climate–chemistry models under different conditions than tod
Externí odkaz:
https://doaj.org/article/f7089eea6874422c95a609a1dd83c168
Publikováno v:
Climate of the Past, Vol 19, Pp 999-1025 (2023)
Air trapped in polar ice provides unique records of the past atmospheric composition ranging from key greenhouse gases such as methane (CH4) to short-lived trace gases like ethane (C2H6) and propane (C3H8). Recently, the comparison of CH4 records obt
Externí odkaz:
https://doaj.org/article/92dccacfa9524de9bf6bad049c223f44
Autor:
C. Buizert, S. Shackleton, J. P. Severinghaus, W. H. G. Roberts, A. Seltzer, B. Bereiter, K. Kawamura, D. Baggenstos, A. J. Orsi, I. Oyabu, B. Birner, J. D. Morgan, E. J. Brook, D. M. Etheridge, D. Thornton, N. Bertler, R. L. Pyne, R. Mulvaney, E. Mosley-Thompson, P. D. Neff, V. V. Petrenko
Publikováno v:
Climate of the Past, Vol 19, Pp 579-606 (2023)
Here we present a newly developed ice core gas-phase proxy that directly samples a component of the large-scale atmospheric circulation: synoptic-scale pressure variability. Surface pressure changes weakly disrupt gravitational isotopic settling in t
Externí odkaz:
https://doaj.org/article/51b9134e3ba344ee9899a487aecf1ada
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
Publikováno v:
Climate of the Past, Vol 18, Pp 2063-2075 (2022)
We present a new high-resolution record of atmospheric CO2 from the Siple Dome ice core, Antarctica, over the early Holocene (11.7–7.4 ka) that quantifies natural CO2 variability on millennial timescales under interglacial climate conditions. Atmos
Externí odkaz:
https://doaj.org/article/033e89919070428da3887f4286f127f3
Autor:
X. Faïn, R. H. Rhodes, P. Place, V. V. Petrenko, K. Fourteau, N. Chellman, E. Crosier, J. R. McConnell, E. J. Brook, T. Blunier, M. Legrand, J. Chappellaz
Publikováno v:
Climate of the Past, Vol 18, Pp 631-647 (2022)
Carbon monoxide (CO) is a regulated pollutant and one of the key components determining the oxidizing capacity of the atmosphere. Obtaining a reliable record of atmospheric CO mixing ratios ([CO]) since preindustrial times is necessary to evaluate cl
Externí odkaz:
https://doaj.org/article/35fa6937accb411e9703a1246ce04f11
Autor:
Y. Yan, N. E. Spaulding, M. L. Bender, E. J. Brook, J. A. Higgins, A. V. Kurbatov, P. A. Mayewski
Publikováno v:
Climate of the Past, Vol 17, Pp 1841-1855 (2021)
The S27 ice core, drilled in the Allan Hills Blue Ice Area of East Antarctica, is located in southern Victoria Land, ∼80 km away from the present-day northern edge of the Ross Ice Shelf. Here, we utilize the reconstructed accumulation rate of S27 c
Externí odkaz:
https://doaj.org/article/2b2fb888413f410f9b1bf070260ff06c
Autor:
J. A. Epifanio, E. J. Brook, C. Buizert, J. S. Edwards, T. A. Sowers, E. C. Kahle, J. P. Severinghaus, E. J. Steig, D. A. Winski, E. C. Osterberg, T. J. Fudge, M. Aydin, E. Hood, M. Kalk, K. J. Kreutz, D. G. Ferris, J. A. Kennedy
Publikováno v:
Climate of the Past, Vol 16, Pp 2431-2444 (2020)
A new ice core drilled at the South Pole provides a 54 000-year paleoenvironmental record including the composition of the past atmosphere. This paper describes the SP19 chronology for the South Pole atmospheric gas record and complements a previou
Externí odkaz:
https://doaj.org/article/0c0612043472464eab5a0f65e13fb549
Autor:
J. E. Lee, E. J. Brook, N. A. N. Bertler, C. Buizert, T. Baisden, T. Blunier, V. G. Ciobanu, H. Conway, D. Dahl-Jensen, T. J. Fudge, R. Hindmarsh, E. D. Keller, F. Parrenin, J. P. Severinghaus, P. Vallelonga, E. D. Waddington, M. Winstrup
Publikováno v:
Climate of the Past, Vol 16, Pp 1691-1713 (2020)
In 2013 an ice core was recovered from Roosevelt Island, an ice dome between two submarine troughs carved by paleo-ice-streams in the Ross Sea, Antarctica. The ice core is part of the Roosevelt Island Climate Evolution (RICE) project and provides new
Externí odkaz:
https://doaj.org/article/9bfeee16460d49148d38819dccd70a90