Zobrazeno 1 - 10
of 17
pro vyhledávání: '"J. A. Menking"'
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:
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:
S. Shackleton, J. A. Menking, E. Brook, C. Buizert, M. N. Dyonisius, V. V. Petrenko, D. Baggenstos, J. P. Severinghaus
Publikováno v:
Climate of the Past, Vol 17, Pp 2273-2289 (2021)
Deglaciations are characterized by relatively fast and near-synchronous changes in ice sheet volume, ocean temperature, and atmospheric greenhouse gas concentrations, but glacial inception occurs more gradually. Understanding the evolution of ice she
Externí odkaz:
https://doaj.org/article/d11481853d1f4bbdbc4cd1631af426c0
Autor:
J. A. Menking, E. J. Brook, S. A. Shackleton, J. P. Severinghaus, M. N. Dyonisius, V. Petrenko, J. R. McConnell, R. H. Rhodes, T. K. Bauska, D. Baggenstos, S. Marcott, S. Barker
Publikováno v:
Climate of the Past, Vol 15, Pp 1537-1556 (2019)
New ice cores retrieved from the Taylor Glacier (Antarctica) blue ice area contain ice and air spanning the Marine Isotope Stage (MIS) 5–4 transition, a period of global cooling and ice sheet expansion. We determine chronologies for the ice and air
Externí odkaz:
https://doaj.org/article/23a3e9ab4aa2465cb01b883a1bd7078f
Autor:
N. A. N. Bertler, H. Conway, D. Dahl-Jensen, D. B. Emanuelsson, M. Winstrup, P. T. Vallelonga, J. E. Lee, E. J. Brook, J. P. Severinghaus, T. J. Fudge, E. D. Keller, W. T. Baisden, R. C. A. Hindmarsh, P. D. Neff, T. Blunier, R. Edwards, P. A. Mayewski, S. Kipfstuhl, C. Buizert, S. Canessa, R. Dadic, H. A. Kjær, A. Kurbatov, D. Zhang, E. D. Waddington, G. Baccolo, T. Beers, H. J. Brightley, L. Carter, D. Clemens-Sewall, V. G. Ciobanu, B. Delmonte, L. Eling, A. Ellis, S. Ganesh, N. R. Golledge, S. Haines, M. Handley, R. L. Hawley, C. M. Hogan, K. M. Johnson, E. Korotkikh, D. P. Lowry, D. Mandeno, R. M. McKay, J. A. Menking, T. R. Naish, C. Noerling, A. Ollive, A. Orsi, B. C. Proemse, A. R. Pyne, R. L. Pyne, J. Renwick, R. P. Scherer, S. Semper, M. Simonsen, S. B. Sneed, E. J. Steig, A. Tuohy, A. U. Venugopal, F. Valero-Delgado, J. Venkatesh, F. Wang, S. Wang, D. A. Winski, V. H. L. Winton, A. Whiteford, C. Xiao, J. Yang, X. Zhang
Publikováno v:
Climate of the Past, Vol 14, Pp 193-214 (2018)
High-resolution, well-dated climate archives provide an opportunity to investigate the dynamic interactions of climate patterns relevant for future projections. Here, we present data from a new, annually dated ice core record from the eastern Ross
Externí odkaz:
https://doaj.org/article/f56c78664267465ebbeca6de5a2e1229
Optimized method for black carbon analysis in ice and snow using the Single Particle Soot Photometer
Autor:
I. A. Wendl, J. A. Menking, R. Färber, M. Gysel, S. D. Kaspari, M. J. G. Laborde, M. Schwikowski
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Iss 8, Pp 2667-2681 (2014)
In this study we attempt to optimize the method for measuring black carbon (BC) in snow and ice using a Single Particle Soot Photometer (SP2). Beside the previously applied ultrasonic (CETAC) and Collison-type nebulizers we introduce a jet (Apex Q) n
Externí odkaz:
https://doaj.org/article/c13f054c39054f40a3e79ee2e9f5bc11
Autor:
Jeffrey P. Severinghaus, Vasilii V. Petrenko, Joseph R. McConnell, Stephen Barker, Rachael H. Rhodes, S. Shackleton, M. Dyonisius, J. A. Menking, Edward J. Brook, T. K. Bauska, Shaun A. Marcott, Daniel Baggenstos
Publikováno v:
Climate of the Past, Vol 15, Pp 1537-1556 (2019)
Climate of the Past, vol 15, iss 4
Climate of the Past, vol 15, iss 4
New ice cores retrieved from the Taylor Glacier (Antarctica) blue ice area contain ice and air spanning the Marine Isotope Stage (MIS) 5–4 transition, a period of global cooling and ice sheet expansion. We determine chronologies for the ice and air
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce425ea99ad2732487c33d997366cb97
https://www.clim-past.net/15/1537/2019/cp-15-1537-2019.pdf
https://www.clim-past.net/15/1537/2019/cp-15-1537-2019.pdf
Autor:
Helle Astrid Kjær, Paul Vallelonga, Jesper Liisberg, Janani Venkatesh, David Aaron Soestmeyer, Bruce H. Vaughn, Todd Sowers, J. A. Menking, Thomas Blunier, Anders Svensson, Bo Møllesøe Vinther, Margaret Harlan, Valerie Morris, Aylin de Campo
The Dye-3 ice core was drilled to bedrock at the Southern part of the central Greenland ice sheet (65°11'N, 43°50'W) in 1979-1981. The southern location is characterized by high accumulation rates compared to more central locations of the ice sheet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d60782e083e5849d015a9e5ad77e8446
https://doi.org/10.5194/egusphere-egu21-11820
https://doi.org/10.5194/egusphere-egu21-11820
Autor:
Helle Astrid Kjær, David Aaron Soestmeyer, J. A. Menking, Meg Harlan, Jeffrey P. Severinghaus, Janani Venkatesh, Jesper Liisberg, Thomas Blunier, Paul Vallelonga, Rachael H. Rhodes
Publikováno v:
Blunier, T, Venkatesh, J, Soestmeyer, D A, Liisberg, J B, Rhodes, R, Menking, J A, Severinghaus, J P, Harlan, M, Kjær, H A & Vallelonga, P 2020, ' New data from the 40 year old Dye3 core ' . https://doi.org/10.5194/egusphere-egu2020-13557
The Dye3 core was drilled at Dye3 (65°11’N, 43°50’W) in 1979 – 1981. The core has been analyzed for numerous components over the last decades. We measured remaining sections, the Younger Dryas and a larger portion of the last glacial, in a co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa3f39c84371b0382c591f94c9ffc2f4
https://curis.ku.dk/ws/files/288920507/EGU2020_13557_print.pdf
https://curis.ku.dk/ws/files/288920507/EGU2020_13557_print.pdf
Autor:
Jochen Schmitt, Jonas Beck, C. M. Harth, T. K. Bauska, Vasilii V. Petrenko, J. A. Menking, I. Vimont, Quan Hua, M. Kalk, B. Hmiel, R. Beaudette, Daniel Baggenstos, Rachael H. Rhodes, Barbara Seth, Hubertus Fischer, Michael Bock, Andrew Smith, Jeffrey P. Severinghaus, B. Yang, Edward J. Brook, M. Dyonisius, Peter Sperlich, S. Shackleton, Ray F. Weiss
Publikováno v:
Science (New York, N.Y.), vol 367, iss 6480
Small burden from old sourcesMethane is a potent greenhouse gas with large natural sources, reservoirs, and sinks. Dyonisiuset al.found that methane emissions from old, cold-region carbon reservoirs like permafrost and methane hydrates were minor dur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84df366e50dc418ce54a3cd739b0e47b
https://escholarship.org/uc/item/79n946hz
https://escholarship.org/uc/item/79n946hz