Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Donald A. Lebar"'
Autor:
Tanner W. Kuhl, Alexander J. Shturmakov, Joshua J. Goetz, Chris J. Gibson, Donald A. Lebar, Jay A. Johnson
Publikováno v:
Annals of Glaciology. 55:1-6
The Blue Ice Drill (BID) is a large-diameter agile drill system designed by the Ice Drilling Design and Operations group of the University of Wisconsin–Madison to quickly core-clean 241 mm diameter ice samples from near-surface sites. It consists o
Autor:
Joshua J. Goetz, Nicolai B. Mortensen, Chris J. Gibson, Donald A. Lebar, Anthony W. Wendricks, Alexander J. Shturmakov, Kristina Slawny, Jay A. Johnson
Publikováno v:
Annals of Glaciology. 55:147-155
The deep ice-sheet coring (DISC) drill was used for production ice-core drilling at WAIS Divide in Antarctica for six field seasons between 2007 and 2013. Continuous ice-core samples were obtained between the snow surface and 3405 m depth. During the
Publikováno v:
Annals of Glaciology. 55:189-198
The deep ice sheet coring (DISC) drill and replicate coring system (RCS) were designed and manufactured by Ice Coring and Drilling Services/Ice Drilling Design and Operations group of the University of Wisconsin–Madison. The DISC/RCS is an electrom
Autor:
V. Zagorodnov, James A. Green, Charles R. Bentley, Jay D. Kyne, Michael H. Hecht, Alexander J. Shturmakov, Bruce Koci, Hermann Engelhardt, William P. Mason, Robin J. Bolsey, Donald A. Lebar, William D. Harrison, L. Augustin
Publikováno v:
Drilling in Extreme Environments
Publikováno v:
Annals of Glaciology. 47:28-34
The Deep Ice Sheet Coring (DISC) drill, developed by Ice Coring and Drilling Services (ICDS) under contract with the US National Science Foundation, is an electromechanical drill designed to take 122 mm diameter ice cores to depths of 4000 m. The con
Autor:
Peter Neff, Thomas E. Woodruff, Nelia W. Dunbar, Shaun A. Marcott, Eric J. Steig, Joel B Pedro, Chris J. Gibson, Kristina Slawny, R. C. Bay, Edward J. Brook, Howard Conway, B. G. Koffman, Daniel Baggenstos, Joan J. Fitzpatrick, Joseph M. Souney, Nicolai B. Mortensen, Andrew J. Schauer, Stephanie Gregory, Erin C. Pettit, Richard B. Alley, Spruce W. Schoenemann, Richard M. Nunn, Bruce H. Vaughn, Tyler R. Jones, Michael Sigl, Alexander J. Shturmakov, John M. Fegyveresi, Mai Winstrup, Mark S. Twickler, Todd Sowers, Nels Iverson, Karl J. Kreutz, James W. C. White, Kunihiko Nishiizumi, Kurt M. Cuffey, Geoffrey M. Hargreaves, T. K. Bauska, Edwin D. Waddington, Jinho Ahn, Matthew J. Kippenhan, Bradley R. Markle, P. Buford Price, Vasileios Gkinis, Tanner W. Kuhl, Nathan Chellman, J. S. Edwards, Logan Mitchell, G. J. Wong, Anthony W. Wendricks, Joshua J. Goetz, Kees C. Welten, Rachael H. Rhodes, Olivia J. Maselli, Tyler J. Fudge, Gary D. Clow, Jihong Cole-Dai, Jeffrey P. Severinghaus, Brian B. Bencivengo, Joseph R. McConnell, Charles R. Bentley, Julia Rosen, Kenneth C. McGwire, Eric D. Cravens, Betty Adrian, Mary R. Albert, D. G. Ferris, John C. Priscu, M. K. Spencer, Daniel R. Pasteris, M. Kalk, Donald A. Lebar, Anais Orsi, James E. Lee, Jay A. Johnson, Paul J. Sendelbach, Donald E. Voigt, Christo Buizert, Kendrick C. Taylor
Publikováno v:
Nature
Nature, Nature Publishing Group, 2015, 520 (7549), pp.661-665. ⟨10.1038/nature14401⟩
Nature, 2015, 520 (7549), pp.661-665. ⟨10.1038/nature14401⟩
Nature, Nature Publishing Group, 2015, 520 (7549), pp.661-665. ⟨10.1038/nature14401⟩
Nature, 2015, 520 (7549), pp.661-665. ⟨10.1038/nature14401⟩
The last glacial period exhibited abrupt Dansgaard-Oeschger climatic oscillations, evidence of which is preserved in a variety of Northern Hemisphere palaeoclimate archives. Ice cores show that Antarctica cooled during the warm phases of the Greenlan