Articles | Volume 16, issue 7
https://doi.org/10.5194/tc-16-2985-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-2985-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Jul 2022
Research article |
| 27 Jul 2022
| 27 Jul 2022
Development of crystal orientation fabric in the Dome Fuji ice core in East Antarctica: implications for the deformation regime in ice sheets
Tomotaka Saruya
CORRESPONDING AUTHOR
National Institute of Polar Research, Research Organization of Information and Systems, Tachikawa 190-8518, Japan
Shuji Fujita
National Institute of Polar Research, Research Organization of Information and Systems, Tachikawa 190-8518, Japan
Department of Polar Science, The Graduate University for Advanced
Studies, SOKENDAI, Tokyo 190-8518, Japan
Yoshinori Iizuka
Institute of Low Temperature Science, Hokkaido University, Sapporo
060-0819, Japan
Atsushi Miyamoto
Institute for the Advancement of Graduate Education, Hokkaido University, Sapporo 060-0817, Japan
Hiroshi Ohno
Kitami Institute of Technology, Kitami 090-8507, Japan
Akira Hori
Kitami Institute of Technology, Kitami 090-8507, Japan
Wataru Shigeyama
Department of Polar Science, The Graduate University for Advanced
Studies, SOKENDAI, Tokyo 190-8518, Japan
currently at: JEOL Ltd., Tokyo 196-8558, Japan
Motohiro Hirabayashi
National Institute of Polar Research, Research Organization of Information and Systems, Tachikawa 190-8518, Japan
Kumiko Goto-Azuma
National Institute of Polar Research, Research Organization of Information and Systems, Tachikawa 190-8518, Japan
Department of Polar Science, The Graduate University for Advanced
Studies, SOKENDAI, Tokyo 190-8518, Japan
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Tomotaka Saruya, Atsushi Miyamoto, Shuji Fujita, Kumiko Goto-Azuma, Motohiro Hirabayashi, Akira Hori, Makoto Igarashi, Yoshinori Iizuka, Takao Kameda, Hiroshi Ohno, Wataru Shigeyama, and Shun Tsutaki
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Crystal orientation fabrics and microstructures in the deep sections of the Dome Fuji (DF) ice core were investigated using innovative methods with dense depth coverage. Together with our previous studies, we have obtained whole layer profiles of the crystal orientation fabric and physical properties of the DF ice core. Development and fluctuation of the crystal orientation fabric were found to be highly dependent on impurity concentrations and recrystallization processes.
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A better understanding of ice flow requires more observational data. The EastGRIP core is the first ice core through an active ice stream. We discuss crystal orientation data to determine the present deformation regimes. A comparison with other deep ice cores shows the unique properties of EastGRIP and that deep ice originates from the Eemian. We further show that the overall plug flow of NEGIS is characterised by many small-scale variations, which remain to be considered in ice-flow models.
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Kumiko Goto-Azuma, Yoshimi Ogawa-Tsukagawa, Kaori Fukuda, Koji Fujita, Motohiro Hirabayashi, Remi Dallmayr, Jun Ogata, Nobuhiro Moteki, Tatsuhiro Mori, Sho Ohata, Yutaka Kondo, Makoto Koike, Sumito Matoba, Moe Kadota, Akane Tsushima, Naoko Nagatsuka, and Teruo Aoki
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Kumiko Goto-Azuma, Remi Dallmayr, Yoshimi Ogawa-Tsukagawa, Nobuhiro Moteki, Tatsuhiro Mori, Sho Ohata, Yutaka Kondo, Makoto Koike, Motohiro Hirabayashi, Jun Ogata, Kyotaro Kitamura, Kenji Kawamura, Koji Fujita, Sumito Matoba, Naoko Nagatsuka, Akane Tsushima, Kaori Fukuda, and Teruo Aoki
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Nicolas Stoll, Ilka Weikusat, Daniela Jansen, Paul Bons, Kyra Darányi, Julien Westhoff, Mária-Gema Llorens, David Wallis, Jan Eichler, Tomotaka Saruya, Tomoyuki Homma, Martyn Drury, Frank Wilhelms, Sepp Kipfstuhl, Dorthe Dahl-Jensen, and Johanna Kerch
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Naoko Nagatsuka, Kumiko Goto-Azuma, Koji Fujita, Yuki Komuro, Motohiro Hirabayashi, Jun Ogata, Kaori Fukuda, Yoshimi Ogawa-Tsukagawa, Kyotaro Kitamura, Ayaka Yonekura, Fumio Nakazawa, Yukihiko Onuma, Naoyuki Kurita, Sune Olander Rasmussen, Giulia Sinnl, Trevor James Popp, and Dorthe Dahl-Jensen
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Preprint archived
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We present a new high-temporal-resolution record of mineral composition in a northeastern Greenland ice-core (EGRIP) over the past 100 years. The ice core dust composition and its variation differed significantly from a northwestern Greenland ice core, which is likely due to differences in the geological sources of the dust. Our results suggest that the EGRIP ice core dust was constantly supplied from Northern Eurasia, North America, and Asia with minor contribution from Greenland coast.
Alice C. Frémand, Peter Fretwell, Julien A. Bodart, Hamish D. Pritchard, Alan Aitken, Jonathan L. Bamber, Robin Bell, Cesidio Bianchi, Robert G. Bingham, Donald D. Blankenship, Gino Casassa, Ginny Catania, Knut Christianson, Howard Conway, Hugh F. J. Corr, Xiangbin Cui, Detlef Damaske, Volkmar Damm, Reinhard Drews, Graeme Eagles, Olaf Eisen, Hannes Eisermann, Fausto Ferraccioli, Elena Field, René Forsberg, Steven Franke, Shuji Fujita, Yonggyu Gim, Vikram Goel, Siva Prasad Gogineni, Jamin Greenbaum, Benjamin Hills, Richard C. A. Hindmarsh, Andrew O. Hoffman, Per Holmlund, Nicholas Holschuh, John W. Holt, Annika N. Horlings, Angelika Humbert, Robert W. Jacobel, Daniela Jansen, Adrian Jenkins, Wilfried Jokat, Tom Jordan, Edward King, Jack Kohler, William Krabill, Mette Kusk Gillespie, Kirsty Langley, Joohan Lee, German Leitchenkov, Carlton Leuschen, Bruce Luyendyk, Joseph MacGregor, Emma MacKie, Kenichi Matsuoka, Mathieu Morlighem, Jérémie Mouginot, Frank O. Nitsche, Yoshifumi Nogi, Ole A. Nost, John Paden, Frank Pattyn, Sergey V. Popov, Eric Rignot, David M. Rippin, Andrés Rivera, Jason Roberts, Neil Ross, Anotonia Ruppel, Dustin M. Schroeder, Martin J. Siegert, Andrew M. Smith, Daniel Steinhage, Michael Studinger, Bo Sun, Ignazio Tabacco, Kirsty Tinto, Stefano Urbini, David Vaughan, Brian C. Welch, Douglas S. Wilson, Duncan A. Young, and Achille Zirizzotti
Earth Syst. Sci. Data, 15, 2695–2710, https://doi.org/10.5194/essd-15-2695-2023, https://doi.org/10.5194/essd-15-2695-2023, 2023
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This paper presents the release of over 60 years of ice thickness, bed elevation, and surface elevation data acquired over Antarctica by the international community. These data are a crucial component of the Antarctic Bedmap initiative which aims to produce a new map and datasets of Antarctic ice thickness and bed topography for the international glaciology and geophysical community.
Takashi Obase, Ayako Abe-Ouchi, Fuyuki Saito, Shun Tsutaki, Shuji Fujita, Kenji Kawamura, and Hideaki Motoyama
The Cryosphere, 17, 2543–2562, https://doi.org/10.5194/tc-17-2543-2023, https://doi.org/10.5194/tc-17-2543-2023, 2023
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We use a one-dimensional ice-flow model to examine the most suitable core location near Dome Fuji (DF), Antarctica. This model computes the temporal evolution of age and temperature from past to present. We investigate the influence of different parameters of climate and ice sheet on the ice's basal age and compare the results with ground radar surveys. We find that the local ice thickness primarily controls the age because it is critical to the basal melting, which can eliminate the old ice.
Elizabeth R. Thomas, Diana O. Vladimirova, Dieter R. Tetzner, B. Daniel Emanuelsson, Nathan Chellman, Daniel A. Dixon, Hugues Goosse, Mackenzie M. Grieman, Amy C. F. King, Michael Sigl, Danielle G. Udy, Tessa R. Vance, Dominic A. Winski, V. Holly L. Winton, Nancy A. N. Bertler, Akira Hori, Chavarukonam M. Laluraj, Joseph R. McConnell, Yuko Motizuki, Kazuya Takahashi, Hideaki Motoyama, Yoichi Nakai, Franciéle Schwanck, Jefferson Cardia Simões, Filipe Gaudie Ley Lindau, Mirko Severi, Rita Traversi, Sarah Wauthy, Cunde Xiao, Jiao Yang, Ellen Mosely-Thompson, Tamara V. Khodzher, Ludmila P. Golobokova, and Alexey A. Ekaykin
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The concentration of sodium and sulfate measured in Antarctic ice cores is related to changes in both sea ice and winds. Here we have compiled a database of sodium and sulfate records from 105 ice core sites in Antarctica. The records span all, or part, of the past 2000 years. The records will improve our understanding of how winds and sea ice have changed in the past and how they have influenced the climate of Antarctica over the past 2000 years.
Ikumi Oyabu, Kenji Kawamura, Shuji Fujita, Ryo Inoue, Hideaki Motoyama, Kotaro Fukui, Motohiro Hirabayashi, Yu Hoshina, Naoyuki Kurita, Fumio Nakazawa, Hiroshi Ohno, Konosuke Sugiura, Toshitaka Suzuki, Shun Tsutaki, Ayako Abe-Ouchi, Masashi Niwano, Frédéric Parrenin, Fuyuki Saito, and Masakazu Yoshimori
Clim. Past, 19, 293–321, https://doi.org/10.5194/cp-19-293-2023, https://doi.org/10.5194/cp-19-293-2023, 2023
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We reconstructed accumulation rate around Dome Fuji, Antarctica, over the last 5000 years from 15 shallow ice cores and seven snow pits. We found a long-term decreasing trend in the preindustrial period, which may be associated with secular surface cooling and sea ice expansion. Centennial-scale variations were also found, which may partly be related to combinations of volcanic, solar and greenhouse gas forcings. The most rapid and intense increases of accumulation rate occurred since 1850 CE.
Shun Tsutaki, Shuji Fujita, Kenji Kawamura, Ayako Abe-Ouchi, Kotaro Fukui, Hideaki Motoyama, Yu Hoshina, Fumio Nakazawa, Takashi Obase, Hiroshi Ohno, Ikumi Oyabu, Fuyuki Saito, Konosuke Sugiura, and Toshitaka Suzuki
The Cryosphere, 16, 2967–2983, https://doi.org/10.5194/tc-16-2967-2022, https://doi.org/10.5194/tc-16-2967-2022, 2022
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We constructed an ice thickness map across the Dome Fuji region, East Antarctica, from improved radar data and previous data that had been collected since the late 1980s. The data acquired using the improved radar systems allowed basal topography to be identified with higher accuracy. The new ice thickness data show the bedrock topography, particularly the complex terrain of subglacial valleys and highlands south of Dome Fuji, with substantially high detail.
Hitoshi Matsui, Tatsuhiro Mori, Sho Ohata, Nobuhiro Moteki, Naga Oshima, Kumiko Goto-Azuma, Makoto Koike, and Yutaka Kondo
Atmos. Chem. Phys., 22, 8989–9009, https://doi.org/10.5194/acp-22-8989-2022, https://doi.org/10.5194/acp-22-8989-2022, 2022
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Using a global aerosol model, we find that the source contributions to radiative effects of black carbon (BC) in the Arctic are quite different from those to mass concentrations and deposition flux of BC in the Arctic. This is because microphysical properties (e.g., mixing state), altitudes, and seasonal variations of BC in the atmosphere differ among emissions sources. These differences need to be considered for accurate simulations of Arctic BC and its source contributions and climate impacts.
Tobias Erhardt, Matthias Bigler, Urs Federer, Gideon Gfeller, Daiana Leuenberger, Olivia Stowasser, Regine Röthlisberger, Simon Schüpbach, Urs Ruth, Birthe Twarloh, Anna Wegner, Kumiko Goto-Azuma, Takayuki Kuramoto, Helle A. Kjær, Paul T. Vallelonga, Marie-Louise Siggaard-Andersen, Margareta E. Hansson, Ailsa K. Benton, Louise G. Fleet, Rob Mulvaney, Elizabeth R. Thomas, Nerilie Abram, Thomas F. Stocker, and Hubertus Fischer
Earth Syst. Sci. Data, 14, 1215–1231, https://doi.org/10.5194/essd-14-1215-2022, https://doi.org/10.5194/essd-14-1215-2022, 2022
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The datasets presented alongside this manuscript contain high-resolution concentration measurements of chemical impurities in deep ice cores, NGRIP and NEEM, from the Greenland ice sheet. The impurities originate from the deposition of aerosols to the surface of the ice sheet and are influenced by source, transport and deposition processes. Together, these records contain detailed, multi-parameter records of past climate variability over the last glacial period.
Ikumi Oyabu, Kenji Kawamura, Tsutomu Uchida, Shuji Fujita, Kyotaro Kitamura, Motohiro Hirabayashi, Shuji Aoki, Shinji Morimoto, Takakiyo Nakazawa, Jeffrey P. Severinghaus, and Jacob D. Morgan
The Cryosphere, 15, 5529–5555, https://doi.org/10.5194/tc-15-5529-2021, https://doi.org/10.5194/tc-15-5529-2021, 2021
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We present O2/N2 and Ar/N2 records from the Dome Fuji ice core through the bubbly ice, bubble–clathrate transition, and clathrate ice zones without gas-loss fractionation. The insolation signal is preserved through the clathrate formation. The relationship between Ar/Ν2 and Ο2/Ν2 suggests that the fractionation for the bubble–clathrate transition is mass independent, while the bubble close-off process involves a combination of mass-independent and mass-dependent fractionation for O2 and Ar.
Naoko Nagatsuka, Kumiko Goto-Azuma, Akane Tsushima, Koji Fujita, Sumito Matoba, Yukihiko Onuma, Remi Dallmayr, Moe Kadota, Motohiro Hirabayashi, Jun Ogata, Yoshimi Ogawa-Tsukagawa, Kyotaro Kitamura, Masahiro Minowa, Yuki Komuro, Hideaki Motoyama, and Teruo Aoki
Clim. Past, 17, 1341–1362, https://doi.org/10.5194/cp-17-1341-2021, https://doi.org/10.5194/cp-17-1341-2021, 2021
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Here we present a first high-temporal-resolution record of mineral composition in a Greenland ice core (SIGMA-D) over the past 100 years using SEM–EDS analysis. Our results show that the ice core dust composition varied on multi-decadal scales, which was likely affected by local temperature changes. We suggest that the ice core dust was constantly supplied from distant sources (mainly northern Canada) as well as local ice-free areas in warm periods (1915 to 1949 and 2005 to 2013).
Kazuyuki Saito, Hirokazu Machiya, Go Iwahana, Tokuta Yokohata, and Hiroshi Ohno
Geosci. Model Dev., 14, 521–542, https://doi.org/10.5194/gmd-14-521-2021, https://doi.org/10.5194/gmd-14-521-2021, 2021
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Soil organic carbon (SOC) and ground ice (ICE) are essential but under-documented information to assess the circum-Arctic permafrost degradation impacts. A simple numerical model of essential SOC and ICE dynamics, developed and integrated north of 50° N for 125,000 years since the last interglacial, reconstructed the history and 1° distribution of SOC and ICE consistent with current knowledge, together with successful demonstration of climatic and topographical controls on SOC evolution.
Ikumi Oyabu, Kenji Kawamura, Kyotaro Kitamura, Remi Dallmayr, Akihiro Kitamura, Chikako Sawada, Jeffrey P. Severinghaus, Ross Beaudette, Anaïs Orsi, Satoshi Sugawara, Shigeyuki Ishidoya, Dorthe Dahl-Jensen, Kumiko Goto-Azuma, Shuji Aoki, and Takakiyo Nakazawa
Atmos. Meas. Tech., 13, 6703–6731, https://doi.org/10.5194/amt-13-6703-2020, https://doi.org/10.5194/amt-13-6703-2020, 2020
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Air in polar ice cores provides information on past atmosphere and climate. We present a new method for simultaneously measuring eight gases (CH4, N2O and CO2 concentrations; isotopic ratios of N2 and O2; elemental ratios between N2, O2 and Ar; and total air content) from single ice-core samples with high precision.
Cited articles
Alley, R. B. and Woods, G. A.: Impurity influence on normal grain growth in
the GISP2 ice core, Greenland, J. Glaciol., 42, 255–260,
https://doi.org/10.3189/S0022143000004111, 1996.
Azuma, N.: A flow law for anisotropic ice and its application to ice sheets,
Earth Planet. Sc. Lett., 128, 601–614,
https://doi.org/10.1016/0012-821X(94)90173-2, 1994.
Azuma, N. and Goto-Azuma K.: An anisotropic flow law for ice-sheet ice and
its implications, Ann. Glaciol., 23, 202–208,
https://doi.org/10.3189/S0260305500013458 1996.
Azuma, N., Wang, Y., Mori, K., Narita, H., Hondoh, T., Shoji, H., and
Watanabe O.: Textures and fabrics in the Dome F (Antarctica) ice core, Ann.
Glaciol., 29, 163–168, https://doi.org/10.3189/172756499781821148, 1999.
Azuma, N., Wang, Y., Yoshida, Y., Narita, H., Hondoh, T., Shoji, H., and
Watanabe, O.: Crystallographic analysis of the Dome Fuji ice core, in:
Physics of Ice Core Records, edited by: Hondoh, T., Hokkaido University
Press, Sapporo, 45–61, http://hdl.handle.net/2115/32461 (last access: 7 July 2022), 2000.
Bamber, J. L., Gomez-Dans, J. L., and Griggs, J. A.: Antarctic 1 km Digital
Elevation Model (DEM) from combined ERS-1 radar and ICESat Laser satellite
altimetry, in: National Snow and Ice Data Center, Digital media, Boulder,
Colorado, USA, NASA National Snow and Ice Data Center Distributed Active Archive Center, https://doi.org/10.5067/H0FQ1KL9NEKM, 2009.
Barnes, P., Wolff, E., Mader, H., Udisti, R., Castellano, E. and
Röthlisberger, R.: Evolution of chemical peak shapes in the Dome C,
Antarctica, ice core, J. Geophys. Res., 108, 4126,
https://doi.org/10.1029/2002JD002538, 2003.
Bazin, L., Landais, A., Lemieux-Dudon, B., Toyé Mahamadou Kele, H.,
Veres, D., Parrenin, F., Martinerie, P., Ritz, C., Capron, E., Lipenkov, V.,
Loutre, M.F., Raynaud, D., Vinther, B., Svensson, A., Rasmussen, S. O.,
Severi, M., Blunier, T., Leuenberger, M., Fischer, H., Masson-Delmotte, V.,
Chappellaz, J., and Wolff, E.: An optimized multi-proxy, multi-site
Antarctic ice and gas orbital chronology (AICC2012): 120–800 ka, Clim.
Past, 9, 1715–1731, https://doi.org/10.5194/cp-9-1715-2013, 2013.
Calonne, N., Montagnat, M., Matzl, M., and Schneebeli, M.: The layered
evolution of fabric and microstructure of snow at Point Barnola, Central
East Antarctica, Earth Planet Sc. Lett., 460, 293–301,
https://doi.org/10.1016/j.epsl.2016.11.041, 2017.
Cuffey, K., Thorsteinsson T., and Waddington, E.: A renewed argument for
crystal size control of ice sheet strain rates, J. Geophys. Res., 105,
27889–27894, https://doi.org/10.1029/2000JB900270, 2000.
Cuffey, K. M. and Paterson, W. S. B.: The Physics of Glaciers, 4th edition,
Elsevier, Amsterdam, Elsevier, ISBN 9780123694614, 2010.
Cullen, A. L.: Infrared and Millimeter Waves, in Millimeter-Wave
Open-Resonator Techniques, Academic Press, New York, 233–280, Academic Press, ISBN 0-12-147710-X, 1983.
Dome Fuji Ice Core Project Members: State dependence of climatic instability
over the past 720,000 years from Antarctic ice cores and climate modeling,
Sci. Adv., 3, e1600446, https://doi.org/10.1126/sciadv.1600446, 2017.
Durand, G., Weiss, J., Lipenkov, V., Barnola, J., Krinner, G., Parrenin, F.,
Delmonte, B., Ritz, C., Duval, P., and Röthlisberger, R.: Effect of
impurities on grain growth in cold ice sheets, J. Geophys. Res., 111,
F01015, https://doi.org/10.1029/2005JF000320, 2006.
Durand, G., Gillet-Chaulet, F., Svensson, A., Gagliardini, O., Kipfstuhl,
S., Meyssonnier, J., Parrenin, F., Duval, P., and Dahl-Jensen, D.: Change in
ice rheology during climate variations–implications for ice flow modelling
and dating of the EPICA Dome C core, Clim. Past, 3, 155–167,
https://doi.org/10.5194/cp-3-155-2007, 2007.
Durand, G., Svensson, A., Persson, A., Gagliardini, O., Gillet-Chaulet, F.,
Sjolte, J., Montagnat, M., and Dahl-Jensen, D.: Evolution of the texture along
the EPICA Dome C ice core, in: Physics of Ice Core Records II, edited by:
Hondoh, T., Hokkaido University Press, Sapporo, 91–105, http://hdl.handle.net/2115/45436 (last access: 7 July 2022), 2009.
Duval, P., Ashby, M. F., and Anderman, I.: Rate-controlling processes in the
creep of polycrystalline ice, J. Phys. Chem., 87, 4066–4074,
https://doi.org/10.1021/j100244a014, 1983.
EPICA Community Members: Eight glacial cycles from an Antarctic ice core,
Nature, 429, 623–628, https://doi.org/10.1038/nature02599, 2004.
Faria, S. H., Freitag, J., and Kipfstuhl, S.: Polar ice structure and the
integrity of ice-core paleoclimate records, Quaternary Sci. Rev., 29,
338–351, https://doi.org/10.1016/j.quascirev.2009.10.016, 2010.
Freitag, J., Kipfstuhl, S., Laepple, T., and Wilhelms, F.:
Impurity-controlled densification: a new model for stratified polar firn, J.
Glaciol., 59, 1163–1169, https://doi.org/10.3189/2013JoG13J042, 2013.
Fujita, S. and Mae, S.: Causes and nature of ice-sheet radio-echo internal
reflections estimated from the dielectric properties of ice, Ann. Glaciol.,
20, 80–86, https://doi.org/10.3189/1994AoG20-1-80-86, 1994.
Fujita, S., Maeno, H., Uratsuka, S., Furukawa, T., Mae, S., Fujii, Y., and
Watanabe, O.: Nature of radio echo layering in the Antarctic ice sheet
detected by a two-frequency experiment, J. Geophys. Res., 104,
13013–13024, https://doi.org/10.1029/1999JB900034, 1999.
Fujita, S., Matsuoka, T., Ishida, T., Matsuoka, K., and Mae, S.: A summary
of the complex dielectric permittivity of ice in the megahertz range and its
applications for radar sounding of polar ice sheets, in: Physics of Ice Core
Records, edited by: Hondoh, T., Hokkaido University Press, Sapporo,
185–212, http://hdl.handle.net/2115/32469 (last access: 7 July 2022), 2000.
Fujita, S., Okuyama, J., Hori, A., and Hondoh, T.: Metamorphism of
stratified firn at Dome Fuji, Antarctica: A mechanism for local insolation
modulation of gas transport conditions during bubble close off, J. Geophys.
Res., 114, F03023, https://doi.org/10.1029/2008JF001143, 2009.
Fujita, S., Holmlund, P., Andersson, I., Brown, I., Enomoto, H., Fujii, Y.,
Fujita, K., Fukui, K., Furukawa, T., Hansson, M., Hara, K., Hoshina, Y.,
Igarashi, M., Iizuka, Y., Imura, S., Ingvander, S., Karlin, T., Motoyama,
H., Nakazawa, F., Oerter, H., Sjöberg, L. E., Sugiyama, S., Surdyk, S.,
Ström, J., Uemura, R., and Wilhelms, F.: Spatial and temporal
variability of snow accumulation rate on the East Antarctic ice divide
between Dome Fuji and EPICA DML, The Cryosphere, 5, 1057–1081,
https://doi.org/10.5194/tc-5-1057-2011, 2011.
Fujita, S., Hirabayashi, M., Goto-Azuma, K., Dallmayr, R., Satow, K., Zheng,
J., and Dahl-Jensen, D.: Densification of layered firn of the ice sheet at
NEEM, Greenland, J. Glaciol., 60, 905–921,
https://doi.org/10.3189/2014JoG14J006, 2014.
Fujita, S., Goto-Azuma, K., Hirabayashi, M., Hori, A., Iizuka, Y., Motizuki,
Y., Motoyama H., and Takahashi, K.: Densification of layered firn in the ice
sheet at Dome Fuji, Antarctica, J. Glaciol., 62, 103–123,
https://doi.org/10.1017/jog.2016.16, 2016.
Ghan, S., Crawford, J., Langematz, U., Leung, R., Li, Z., Russell, L.,
Steiner, A., and Zhang, C.: Author contributions can be clarified, J.
Geophys. Res., 121, 8155–8155, https://doi.org/10.1002/2016JD025417, 2016.
Goodman, D. J., Frost, H. J., and Ashby, M. F.: The plasticity of
polycrystalline ice, Philos. Mag., 43, 665–695,
https://doi.org/10.1080/01418618108240401, 1981.
Goto-Azuma, K., Hirabayashi, M., Motoyama, H., Miyake, T., Kuramoto, T.,
Uemura, R., Igarashi, M., Iizuka, Y., Sakurai, T., and Horikawa, S.: Reduced
marine phytoplankton sulphur emissions in the Southern Ocean during the past
seven glacials, Nat. Commun., 10, 1–7,
https://doi.org/10.1038/s41467-019-11128-6, 2019.
Gow, A. J., Meese, D. A., Alley, R. B., Fitzpatrick, J. J., Anandakrishnan, S.,
Woods, G. A., and Elder, B. C.: Physical and structural properties of the
Greenland Ice Sheet Project 2 ice core: A review, J. Geophys. Res.,
102, 26559–26575, https://doi.org/10.1029/97JC00165, 1997.
Hammonds, K. and Baker, I.: The effects of H2SO4 on the
mechanical behavior and microstructural evolution of polycrystalline ice, J.
Geophys. Res., 123, 535–556, https://doi.org/10.1002/2017JF004335, 2018.
Hargreaves, N. D.: The radio-frequency birefringence of polar ice, J.
Glaciol, 21, 301–313, https://doi.org/10.3189/S0022143000033499, 1978.
Hooke, R. L., Dahlin, B. B., and Kauper, M. T.: Creep of ice containing
dispersed fine sand, J. Glaciol., 11, 327–336, https://doi.org/10.3189/S0022143000022309, 1972.
Hörhold, M., Laepple, T., Freitag, J., Bigler, M., Fischer, H., and and
Kipfstuhl, S.: On the impact of impurities on the densification of polar
firn, Earth Planet. Sc. Lett., 325, 93–99,
https://doi.org/10.1016/j.epsl.2011.12.022, 2012.
Iizuka, Y., Horikawa, S., Sakurai, T., Johnson, S., Dahl-Jensen, D.,
Steffensen, J. P., and Hondoh, T.: A relationship between ion balance and
the chemical compounds of salt inclusions found in the Greenland Ice Core
Project and Dome Fuji ice cores, J. Geophys. Res., 113, D07303,
https://doi.org/10.1029/2007JD009018, 2008.
Iizuka, Y., Uemura, R., Motoyama, H., Suzuki, T., Miyake, T., Hirabayashi,
M., and Hondoh, T.: Sulphate–climate coupling over the past 300,000 years
in inland Antarctica, Nature, 490, 81–84,
https://doi.org/10.1038/nature11359, 2012.
Jansen, D., Llorens, M.-G., Westhoff, J., Steinbach, F., Kipfstuhl, S.,
Bons, P. D., Griera, A., and Weikusat, I.: Small-scale disturbances in the
stratigraphy of the NEEM ice core: observations and numerical model
simulations, The Cryosphere, 10, 359–370,
https://doi.org/10.5194/tc-10-359-2016, 2016.
Jones, S. J.: Softening of ice crystals by dissolved fluoride ions, Phys. Lett. A, 25, 366–367, https://doi.org/10.1016/0375-9601(67)90702-5, 1967.
Jones, R. G.: The measurement of dielectric anisotropy using a microwave
open resonator, J. Phys. D, 9, 819–827,
https://doi.org/10.1088/0022-3727/9/5/015, 1976a.
Jones, R. G.: Precise dielectric measurements at 35GHz using an open
microwave resonator, Proc. IEEE, 123, 285–290,
https://doi.org/10.1049/piee.1976.0067, 1976b.
Jones, S. and Glen, J.: The effect of dissolved impurities on the
mechanical properties of ice crystals, Philos. Mag., 19, 13–24,
https://doi.org/10.1080/14786436908217758, 1969.
Komiyama, B., Kiyokawa, M., and Matsui, T.: Open resonator for precision
dielectric measurements in the 100 GHz band, IEEE Trans. Microw. Theory
Tech., 30, 1792–1796, https://doi.org/10.1109/22.88556, 1991.
Montagnat, M., Azuma, N., Dahl-Jensen, D., Eichler, J., Fujita, S.,
Gillet-Chaulet, F., Kipfstuhl, S., Samyn, D., Svensson, A., and Weikusat, I.:
Fabric along the NEEM ice core, Greenland, and comparison with GRIP and
NGRIP ice cores, The Cryosphere, 8, 1129–1138.
https://doi.org/10.5194/tc-8-1129-2014, 2014.
Motoyama, H.: The second deep ice coring project at Dome Fuji, Antarctica,
Sci. Dril., 5, 41–43, https://doi.org/10.2204/iodp.sd.5.05.2007, 2007.
Nakamura, T. and Jones, S.: Softening effect of dissolved hydrogen chloride
in ice crystals, Scripta Metall. Mater., 4, 123–126,
https://doi.org/10.1016/0036-9748(70)90176-6, 1970.
Ohno, H., Igarashi, M., and Hondoh, T.: Salt inclusions in polar ice core:
Location and chemical form of water-soluble impurities, Earth Planet. Sc.
Lett., 232, 171–178, https://doi.org/10.1016/j.epsl.2005.01.001,
2005.
Ohno, H., Igarashi, M., and Hondoh, T.: Characteristics of salt inclusions
in polar ice from Dome Fuji, East Antarctica, Geophys. Res. Lett., 33,
L08501, https://doi.org/10.1029/2006GL025774, 2006.
Parrenin, F., Fujita, S., Abe-Ouchi, A., Kawamura, K., Masson-Delmotte, V.,
Motoyama, H., Saito, F., Severi, M., Stenni, B., Uemura, R., and Wolff, E.
W.: Climate dependent contrast in surface mass balance in East Antarctica
over the past 216 ka, J. Glaciol., 62, 1037–1048,
https://doi.org/10.1017/jog.2016.85, 2016.
Paterson, W. S. B.: Why ice-age ice is sometimes “soft”, Cold Reg. Sci.
Tech., 20, 75–98, https://doi.org/10.1016/0165-232X(91)90058-O, 1991.
Petrenko, V. F., and Whitworth, R. W.: Physics of Ice, Oxford University
Press, Oxford, Oxford University Press, ISBN 9780198518945, 1999.
Saruya, T. and Fujita, S.: Dome Fuji, Antarctica Core DF2 Dielectric Anisotropy Measurements, 1.00, Arctic Data archive System (ADS) [data set], Japan, https://ads.nipr.ac.jp/dataset/A20220621-001 (last access: 7 July 2022), https://doi.org/10.17592/001.2022062101, 2022.
Saruya, T., Nakajima, K., Takata, M., Homma, T., Azuma, N., and Goto-Azuma, K.:
Effects of microparticles on deformation and microstructural evolution of
fine-grained ice, J. Glaciol, 65, 531–541,
https://doi.org/10.1017/jog.2019.29, 2019.
Saruya, T., Fujita, S., and Inoue, R.: Dielectric anisotropy as indicator of
crystal orientation fabric in Dome Fuji ice core: method and initial
results, J. Glaciol., 68, 65–76, https://doi.org/10.1017/jog.2021.73,
2022.
Shoji, H. and Higashi, A.: A deformation mechanism map of ice, J. Glaciol.,
85, 419–427, https://doi.org/10.3189-/S002214300003358X, 1978.
Svensson, A., Nielsen, S. W., Kipfstuhl, S., Johnsen, S. J., Steffensen, J.
P., Bigler, M., Ruth, U., and Röthlisberger, R.: Visual stratigraphy of
the North Greenland Ice Core Project (NorthGRIP) ice core during the last
glacial period, J. Geophys. Res., 110, D02108, https://doi.org/10.1029/2004JD005134,
2005.
Thorsteinsson, T., Kipfstuhl, J., Eicken, H., Johnsen, S. J., and Fuhrer,
K.: Crystal size variations in Eemian-age ice from the GRIP ice core,
central Greenland, Earth Planet. Sc. Lett., 131, 381–394,
https://doi.org/10.1016/0012-821X(95)00031-7, 1995.
Thorsteinsson, T., Kipfstuhl, J., and Miller, H.: Textures and fabrics in the
GRIP ice core, J. Geophys. Res., 102, 26583–26599,
https://doi.org/10.1029/97JC00161, 1997.
Tsutaki, S., Fujita, S., Kawamura, K., Abe-Ouchi, A., Fukui, K., Motoyama, H., Hoshina, Y., Nakazawa, F., Obase, T., Ohno, H., Oyabu, I., Saito, F., Sugiura, K., and Suzuki, T.: High-resolution subglacial topography around Dome Fuji, Antarctica, based on ground-based radar surveys conducted over 30 years, The Cryosphere, 16, 2967–2983, https://doi.org/10.5194/tc-16-2967-2022, 2022.
Udisti, R., Becagli, S. Benassai, S., De Angelis, M., Hansson, M. E.,
Jouzel, J., Schwander, J., Steffensen, J. P., Traversi, R., and Wolff, E.:
Sensitivity of chemical species to climatic changes in the last 45 kyr as
revealed by high-resolution Dome C (East Antarctica) ice-core analysis, Ann.
Glaciol., 39, 457–466, https://doi.org/10.3189/172756404781814096, 2004.
Wang, Y. and Azuma, N.: A new automatic ice-fabric analyzer which uses
image-analysis techniques, Ann. Glaciol., 29, 155–162,
https://doi.org/10.3189/172756499781821021, 1999.
Wang, Y., Kipfstuhl, S., Azuma, N., Thorsteinsson, T., and Miller, H.:
Ice-fabrics study in the upper 1500 m of the Dome C (East Antarctica) deep
ice core, Ann. Glaciol., 37, 97–104,
https://doi.org/10.3189/172756403781816031, 2003.
Watanabe, O., Kamiyama, K., Motoyama, H., Fujii, Y., Shoji, H., and Satow
K.: The paleoclimate record in the ice core at Dome Fuji station, East
Antarctica, Ann. Glaciol., 29, 176–178,
https://doi.org/10.3189/172756499781821553, 1999.
Watanabe, O., Kamiyama, K., Motoyama, H., Fujii, Y., Igarashi, M., Furukawa,
T., Goto-Azuma, K., Saito, T., Kanamori, S, Kanamori, N., Yoshida, N., and
Uemura, R.: General tendencies of stable isotopes and major chemical
constituents of the Dome Fuji deep ice core, Mem. Natl. Inst. Polar Res.,
Spec. Issue, 57, 1–24, 2003.
Wilen, L., Diprinzio, C., Alley, R., and Azuma, N.: Development, principles,
and applications of automated ice fabric analyzers. Microsc. Res. Tech., 62,
2–18, https://doi.org/10.1002/jemt.10380, 2003.
Wilson, C. J., Russell-Head, D. S., and Sim H. M.: The application of an
automated fabric analyzer system to the textural evolution of folded ice
layers in shear zones, Ann. Glaciol., 37, 7–17,
https://doi.org/10.3189/172756403781815401, 2003.
Short summary
Crystal orientation fabrics (COF) of the Dome Fuji ice core were investigated with an innovative method with unprecedentedly high statistical significance and dense depth coverage. The COF profile and its fluctuation were found to be highly dependent on concentrations of chloride ion and dust. The data suggest deformation of ice at the deepest zone is highly influenced by COF fluctuations that progressively develop from the near-surface firn toward the deepest zone within ice sheets.
Crystal orientation fabrics (COF) of the Dome Fuji ice core were investigated with an innovative...
