Zobrazeno 1 - 10
of 667
pro vyhledávání: '"D Waddington"'
Publikováno v:
Climate of the Past, Vol 20, Pp 297-312 (2024)
Deposition of sulfuric acid in ice cores is important both for understanding past volcanic activity and for synchronizing ice core timescales. Sulfuric acid has a low eutectic point, so it can potentially exist in liquid at grain boundaries and veins
Externí odkaz:
https://doaj.org/article/d83bbcaa9c6d47b19ef95591a51fe9c9
Autor:
C. Max Stevens, David A. Lilien, Howard Conway, T. J. Fudge, Michelle R. Koutnik, Edwin D. Waddington
Publikováno v:
Journal of Glaciology, Vol 69, Pp 2099-2113 (2023)
Converting measurements of ice-sheet surface elevation change to mass change requires measurements of accumulation and knowledge of the evolution of the density profile in the firn. Most firn-densification models are tuned using measured depth–dens
Externí odkaz:
https://doaj.org/article/d725d94676d44dd99dde3e01e5f8dbf4
Publikováno v:
Earth System Science Data, Vol 14, Pp 955-971 (2022)
Assessing changes in the density of snow and firn is vital to convert volume changes into mass changes on glaciers and ice sheets. Firn models simulate this process but typically rely upon steady-state assumptions and geographically and temporally li
Externí odkaz:
https://doaj.org/article/9763a90c176846abac153c65cd676ec3
Autor:
Annika N. Horlings, Knut Christianson, Nicholas Holschuh, C. Max Stevens, Edwin D. Waddington
Publikováno v:
Journal of Glaciology, Vol 67, Pp 287-296 (2021)
Ice-sheet mass-balance estimates derived from repeat satellite-altimetry observations require accurate calculation of spatiotemporal variability in firn-air content (FAC). However, firn-compaction models remain a large source of uncertainty within ma
Externí odkaz:
https://doaj.org/article/301454f1fb55432ebb6ddbe290d5f131
Autor:
C. M. Stevens, V. Verjans, J. M. D. Lundin, E. C. Kahle, A. N. Horlings, B. I. Horlings, E. D. Waddington
Publikováno v:
Geoscientific Model Development, Vol 13, Pp 4355-4377 (2020)
Models that simulate the evolution of polar firn are important for several applications in glaciology, including converting ice-sheet elevation change measurements to mass change and interpreting climate records in ice cores. We have developed the Co
Externí odkaz:
https://doaj.org/article/302c826af847433cbd3ea6eff9b9dd6d
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
Autor:
T. J. Fudge, D. A. Lilien, M. Koutnik, H. Conway, C. M. Stevens, E. D. Waddington, E. J. Steig, A. J. Schauer, N. Holschuh
Publikováno v:
Climate of the Past, Vol 16, Pp 819-832 (2020)
The South Pole Ice Core (SPICEcore), which spans the past 54 300 years, was drilled far from an ice divide such that ice recovered at depth originated upstream of the core site. If the climate is different upstream, the climate history recovered fr
Externí odkaz:
https://doaj.org/article/aecd5929b4264dd0b74b71bdd446af36
Autor:
D. A. Winski, T. J. Fudge, D. G. Ferris, E. C. Osterberg, J. M. Fegyveresi, J. Cole-Dai, Z. Thundercloud, T. S. Cox, K. J. Kreutz, N. Ortman, C. Buizert, J. Epifanio, E. J. Brook, R. Beaudette, J. Severinghaus, T. Sowers, E. J. Steig, E. C. Kahle, T. R. Jones, V. Morris, M. Aydin, M. R. Nicewonger, K. A. Casey, R. B. Alley, E. D. Waddington, N. A. Iverson, N. W. Dunbar, R. C. Bay, J. M. Souney, M. Sigl, J. R. McConnell
Publikováno v:
Climate of the Past, Vol 15, Pp 1793-1808 (2019)
The South Pole Ice Core (SPICEcore) was drilled in 2014–2016 to provide a detailed multi-proxy archive of paleoclimate conditions in East Antarctica during the Holocene and late Pleistocene. Interpretation of these records requires an accurate dept
Externí odkaz:
https://doaj.org/article/fa7e82cfa2bc44278854c5ddefc4442c
Autor:
M. Winstrup, P. Vallelonga, H. A. Kjær, T. J. Fudge, J. E. Lee, M. H. Riis, R. Edwards, N. A. N. Bertler, T. Blunier, E. J. Brook, C. Buizert, G. Ciobanu, H. Conway, D. Dahl-Jensen, A. Ellis, B. D. Emanuelsson, R. C. A. Hindmarsh, E. D. Keller, A. V. Kurbatov, P. A. Mayewski, P. D. Neff, R. L. Pyne, M. F. Simonsen, A. Svensson, A. Tuohy, E. D. Waddington, S. Wheatley
Publikováno v:
Climate of the Past, Vol 15, Pp 751-779 (2019)
We present a 2700-year annually resolved chronology and snow accumulation history for the Roosevelt Island Climate Evolution (RICE) ice core, Ross Ice Shelf, West Antarctica. The core adds information on past accumulation changes in an otherwise poor
Externí odkaz:
https://doaj.org/article/efe616a73f714138aa8ca4bbeb05d580
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