Articles | Volume 14, issue 7
https://doi.org/10.5194/essd-14-3313-2022
© 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/essd-14-3313-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Data description paper
| 
19 Jul 2022
Data description paper |
| 19 Jul 2022
| 19 Jul 2022
2000 years of annual ice core data from Law Dome, East Antarctica
Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Christopher T. Plummer
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Jason L. Roberts
Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Andrew D. Moy
Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Mark A. J. Curran
Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Tessa R. Vance
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Joel B. Pedro
Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Chelsea A. Long
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Meredith Nation
Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Paul A. Mayewski
Climate Change Institute, University of Maine, Orono, ME, USA
Tas D. van Ommen
Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
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Revised manuscript not accepted
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The ice-core recovered in Peruvian Andes depicts the 12 years of dust particles data in snow accumulation. The seasonality of the dry and wet season, respectively, are represented by high and low dust concentration in profile. Our observations period show the differences between fine and larger particles concentrations over the years and their correlation with oceanic oscillations phenomena. Also, we introduce the link of the dust groupings with Madeira River in the Amazon basin context.
Steven J. Phipps, Jason L. Roberts, and Matt A. King
Geosci. Model Dev., 14, 5107–5124, https://doi.org/10.5194/gmd-14-5107-2021, https://doi.org/10.5194/gmd-14-5107-2021, 2021
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Simplified schemes, known as parameterisations, are sometimes used to describe physical processes within numerical models. However, the values of the parameters are uncertain. This introduces uncertainty into the model outputs. We develop a simple approach to identify plausible ranges for model parameters. Using a model of the Antarctic Ice Sheet, we find that the value of one parameter can depend on the values of others. We conclude that a single optimal set of parameter values does not exist.
Lisa Craw, Adam Treverrow, Sheng Fan, Mark Peternell, Sue Cook, Felicity McCormack, and Jason Roberts
The Cryosphere, 15, 2235–2250, https://doi.org/10.5194/tc-15-2235-2021, https://doi.org/10.5194/tc-15-2235-2021, 2021
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Ice sheet and ice shelf models rely on data from experiments to accurately represent the way ice moves. Performing experiments at the temperatures and stresses that are generally present in nature takes a long time, and so there are few of these datasets. Here, we test the method of speeding up an experiment by running it initially at a higher temperature, before dropping to a lower target temperature to generate the relevant data. We show that this method can reduce experiment time by 55 %.
Elizabeth Ruth Thomas, Guisella Gacitúa, Joel B. Pedro, Amy Constance Faith King, Bradley Markle, Mariusz Potocki, and Dorothea Elisabeth Moser
The Cryosphere, 15, 1173–1186, https://doi.org/10.5194/tc-15-1173-2021, https://doi.org/10.5194/tc-15-1173-2021, 2021
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Here we present the first-ever radar and ice core data from the sub-Antarctic islands of Bouvet Island, Peter I Island, and Young Island. These islands have the potential to record past climate in one of the most data-sparse regions on earth. Despite their northerly location, surface melting is generally low, and the upper layer of the ice at most sites is undisturbed. We estimate that a 100 m ice core drilled on these islands could capture climate over the past 100–200 years.
Rupert Gladstone, Benjamin Galton-Fenzi, David Gwyther, Qin Zhou, Tore Hattermann, Chen Zhao, Lenneke Jong, Yuwei Xia, Xiaoran Guo, Konstantinos Petrakopoulos, Thomas Zwinger, Daniel Shapero, and John Moore
Geosci. Model Dev., 14, 889–905, https://doi.org/10.5194/gmd-14-889-2021, https://doi.org/10.5194/gmd-14-889-2021, 2021
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Retreat of the Antarctic ice sheet, and hence its contribution to sea level rise, is highly sensitive to melting of its floating ice shelves. This melt is caused by warm ocean currents coming into contact with the ice. Computer models used for future ice sheet projections are not able to realistically evolve these melt rates. We describe a new coupling framework to enable ice sheet and ocean computer models to interact, allowing projection of the evolution of melt and its impact on sea level.
Abhijith U. Venugopal, Nancy A. N. Bertler, Rebecca L. Pyne, Helle A. Kjær, V. Holly L. Winton, Paul A. Mayewski, and Giuseppe Cortese
Clim. Past Discuss., https://doi.org/10.5194/cp-2020-151, https://doi.org/10.5194/cp-2020-151, 2020
Manuscript not accepted for further review
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We present a new and highly resolved glacial record of nitrate and calcium from a deep ice core obtained from Roosevelt Island, West Antarctica. Our data show a dependent association among nitrate and non-sea salt calcium (mineral dust) as observed previously in East Antarctica. The spatial pattern indicates that mineral dust is scavenging nitrate from the atmosphere and the westerlies are dispersing the dust-bound nitrate across Antarctica, making nitrate a potential paleo-westerly wind proxy.
Anna L. Flack, Anthony S. Kiem, Tessa R. Vance, Carly R. Tozer, and Jason L. Roberts
Hydrol. Earth Syst. Sci., 24, 5699–5712, https://doi.org/10.5194/hess-24-5699-2020, https://doi.org/10.5194/hess-24-5699-2020, 2020
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Palaeoclimate information was analysed for eastern Australia to determine when (and where) there was agreement about the timing of wet and dry epochs in the pre-instrumental period (1000–1899). The results show that instrumental records (~1900–present) underestimate the full range of rainfall variability that has occurred. When coupled with projected impacts of climate change and growing demands, these results highlight major challenges for water resource management and infrastructure.
Xiangbin Cui, Hafeez Jeofry, Jamin S. Greenbaum, Jingxue Guo, Lin Li, Laura E. Lindzey, Feras A. Habbal, Wei Wei, Duncan A. Young, Neil Ross, Mathieu Morlighem, Lenneke M. Jong, Jason L. Roberts, Donald D. Blankenship, Sun Bo, and Martin J. Siegert
Earth Syst. Sci. Data, 12, 2765–2774, https://doi.org/10.5194/essd-12-2765-2020, https://doi.org/10.5194/essd-12-2765-2020, 2020
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We present a topographic digital elevation model (DEM) for Princess Elizabeth Land (PEL), East Antarctica. The DEM covers an area of approximately 900 000 km2 and was built from radio-echo sounding data collected in four campaigns since 2015. Previously, to generate the Bedmap2 topographic product, PEL’s bed was characterised from low-resolution satellite gravity data across an otherwise large (>200 km wide) data-free zone.
Syed Abdul Salam, Jason L. Roberts, Felicity S. McCormack, Richard Coleman, and Jacqueline A. Halpin
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2020-146, https://doi.org/10.5194/essd-2020-146, 2020
Publication in ESSD not foreseen
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Accurate estimates of englacial temperature and geothermal heat flux are incredibly important
for constraining model simulations of ice dynamics (e.g. viscosity is temperature-dependent) and sliding. However, we currently have few direct measurements of vertical temperature (i.e. only at boreholes/ice domes) and geothermal heat flux in Antarctica. This method derives attenuation rates, that can then be mapped directly to englacial temperatures and geothermal heat flux.
Bronwen L. Konecky, Nicholas P. McKay, Olga V. Churakova (Sidorova), Laia Comas-Bru, Emilie P. Dassié, Kristine L. DeLong, Georgina M. Falster, Matt J. Fischer, Matthew D. Jones, Lukas Jonkers, Darrell S. Kaufman, Guillaume Leduc, Shreyas R. Managave, Belen Martrat, Thomas Opel, Anais J. Orsi, Judson W. Partin, Hussein R. Sayani, Elizabeth K. Thomas, Diane M. Thompson, Jonathan J. Tyler, Nerilie J. Abram, Alyssa R. Atwood, Olivier Cartapanis, Jessica L. Conroy, Mark A. Curran, Sylvia G. Dee, Michael Deininger, Dmitry V. Divine, Zoltán Kern, Trevor J. Porter, Samantha L. Stevenson, Lucien von Gunten, and Iso2k Project Members
Earth Syst. Sci. Data, 12, 2261–2288, https://doi.org/10.5194/essd-12-2261-2020, https://doi.org/10.5194/essd-12-2261-2020, 2020
Cited articles
Ahmed, M., Anchukaitis, K. J., Asrat, A., Borgaonkar, H. P., Braida, M.,
Buckley, B. M., Büntgen, U., Chase, B. M., Christie, D. A., Cook,
E. R., Curran, M. A., Diaz, H. F., Esper, J., Fan, Z. X., Gaire, N. P., Ge,
Q., Gergis, J., González-Rouco, J. F., Goosse, H., Grab, S. W., Graham,
N., Graham, R., Grosjean, M., Hanhijärvi, S. T., Kaufman, D. S.,
Kiefer, T., Kimura, K., Korhola, A. A., Krusic, P. J., Lara, A.,
Lézine, A. M., Ljungqvist, F. C., Lorrey, A. M., Luterbacher, J.,
Masson-Delmotte, V., McCarroll, D., McConnell, J. R., McKay, N. P., Morales,
M. S., Moy, A. D., Mulvaney, R., Mundo, I. A., Nakatsuka, T., Nash, D. J.,
Neukom, R., Nicholson, S. E., Oerter, H., Palmer, J. G., Phipps, S. J.,
Prieto, M. R., Rivera, A., Sano, M., Severi, M., Shanahan, T. M., Shao, X.,
Shi, F., Sigl, M., Smerdon, J. E., Solomina, O. N., Steig, E. J., Stenni, B.,
Thamban, M., Trouet, V., Turney, C. S., Umer, M., van Ommen, T., Verschuren,
D., Viau, A. E., Villalba, R., Vinther, B. M., Von Gunten, L., Wagner, S.,
Wahl, E. R., Wanner, H., Werner, J. P., White, J. W., Yasue, K., and Zorita,
E.: Continental-scale temperature variability during the past two
millennia, Nat. Geosci., 6, 339–346, 2013. a, b, c, d, e
Bromwich, D.: Snowfall in high southern latitudes, Reviews of Geophysics, 26,
149–168, 1988. a
Buck, C. F., Mayewski, P. A., Spencer, M. J., Whitlow, S., Twickler, M. S., and
Barrett, D.: Determination of major ions in snow and ice cores by ion
chromatography, J. Chromatogr. A, 594, 225–228,
https://doi.org/10.1016/0021-9673(92)80334-Q, 1992. a, b, c, d
Crockart, C. K., Vance, T. R., Fraser, A. D., Abram, N. J., Criscitiello, A. S., Curran, M. A. J., Favier, V., Gallant, A. J. E., Kittel, C., Kjær, H. A., Klekociuk, A. R., Jong, L. M., Moy, A. D., Plummer, C. T., Vallelonga, P. T., Wille, J., and Zhang, L.: El Niño–Southern Oscillation signal in a new East Antarctic ice core, Mount Brown South, Clim. Past, 17, 1795–1818, https://doi.org/10.5194/cp-17-1795-2021, 2021. a
Curran, M., M., Jong, L., Moy, A., Plummer, C., Roberts, J., Van Ommen, T., and
Vance, T.: The Law Dome ice core 2000 year dataset collection, Australian
Antarctic Data Centre [data set], https://doi.org/10.26179/5zm0-v192, 2021. a, b, c
Curran, M. A., Van Ommen, T. D., and Morgan, V.: Seasonal characteristics of
the major ions in the high-accumulation Dome Summit South ice core, Law Dome,
Antarctica, Ann. Glaciol., 27, 385–390,
https://doi.org/10.3189/1998AoG27-1-385-390, 1998. a
Curran, M. A. J., Van Ommen, T. D., Morgan, V. I., Phillips, K. L., and
Palmer, A. S.: Ice Core Evidence for Antarctic Sea Ice Decline since the
1950s, Science, 302, 1203–1206, https://doi.org/10.1126/science.1087888,
2003. a
Emile-Geay, J., McKay, N. P., Kaufman, D. S., von Gunten, L., Wang, J.,
Anchukaitis, K. J., Abram, N. J., Addison, J. A., Curran, M. A., Evans,
M. N., Henley, B. J., Hao, Z., Martrat, B., McGregor, H. V., Neukom, R.,
Pederson, G. T., Stenni, B., Thirumalai, K., Werner, J. P., Xu, C., Divine,
D. V., Dixon, B. C., Gergis, J., Mundo, I. A., Nakatsuka, T., Phipps, S. J.,
Routson, C. C., Steig, E. J., Tierney, J. E., Tyler, J. J., Allen, K. J.,
Bertler, N. A., Björklund, J., Chase, B. M., Chen, M.-T., Cook, E.,
de Jong, R., DeLong, K. L., Dixon, D. A., Ekaykin, A. A., Ersek, V.,
Filipsson, H. L., Francus, P., Freund, M. B., Frezzotti, M., Gaire, N. P.,
Gajewski, K., Ge, Q., Goosse, H., Gornostaeva, A., Grosjean, M., Horiuchi,
K., Hormes, A., Husum, K., Isaksson, E., Kandasamy, S., Kawamura, K.,
Kilbourne, K. H., Koç, N., Leduc, G., Linderholm, H. W., Lorrey, A. M.,
Mikhalenko, V., Mortyn, P. G., Motoyama, H., Moy, A. D., Mulvaney, R., Munz,
P. M., Nash, D. J., Oerter, H., Opel, T., Orsi, A. J., Ovchinnikov, D. V.,
Porter, T. J., Roop, H. A., Saenger, C., Sano, M., Sauchyn, D., Saunders,
K. M., Seidenkrantz, M.-S., Severi, M., Shao, X., Sicre, M.-A., Sigl, M.,
Sinclair, K., St. George, S., St. Jacques, J.-M., Thamban, M., Kuwar
Thapa, U., Thomas, E. R., Turney, C., Uemura, R., Viau, A. E., Vladimirova,
D. O., Wahl, E. R., White, J. W., Yu, Z., Zinke, J., and Zinke, J.: A global
multiproxy database for temperature reconstructions of the Common Era, Sci.
Data, 4, 170088, https://doi.org/10.1038/sdata.2017.88, 2017. a, b, c, d
Etheridge, D. M., Steele, L. P., Francey, R. J., and Langenfelds, R. L.:
Atmospheric methane between 1000 A.D. and present: Evidence of anthropogenic
emissions and climatic variability, J. Geophys. Res.-Atmos., 103, 15979–15993, https://doi.org/10.1029/98JD00923,
1998. a
Masson-Delmotte, V., Delmotte, M., Morgan, V., Etheridge, D., van Ommen, T.,
Tartarin, S., and Hoffmann, G.: Recent southern Indian Ocean climate
variability inferred from a Law Dome ice core: New insights for the
interpretation of coastal Antarctic isotopic records, Clim. Dynam., 21,
153–166, https://doi.org/10.1007/s00382-003-0321-9, 2003. a
Morgan, V., Wookey, C., Li, J., van Ommen, T., Skinner, W., and Fitzpatrick,
M.: Site information and initial results from deep ice drilling on Law Dome,
Antarctica, J. Glaciol., 43, 3–10, https://doi.org/10.3189/S0022143000002768, 1997. a, b
Palmer, A. S., Van Ommen, T. D., Curran, M. A. J., and Morgan, V.: Ice-core
evidence for a small solar-source of atmospheric nitrate, Geophys. Res.
Lett., 28, 1953–1956, https://doi.org/10.1029/2000GL012207, 2001a. a
Palmer, A. S., van Ommen, T. D., Curran, M. A. J., Morgan, V., Souney, J. M.,
and Mayewski, P. A.: High-precision dating of volcanic events (A.D.
1301–1995) using ice cores from Law Dome, Antarctica, J. Geophys.
Res.-Atmos., 106, 28089–28095, https://doi.org/10.1029/2001JD000330,
2001b. a, b, c, d
Parker, D., Folland, C., Scaife, A., Knight, J., Colman, A., Baines, P., and
Dong, B.: Decadal to multidecadal variability and the climate change
background, J. Geophys. Res.-Atmos., 112, D18115, https://doi.org/10.1029/2007JD008411, 2007. a
Pedro, J. B., Heikkilä, U. E., Klekociuk, A., Smith, A. M., Van Ommen,
T. D., and Curran, M. A.: Beryllium-10 transport to Antarctica: Results from
seasonally resolved observations and modeling, J. Geophys. Res.-Atmos., 116,
1–14, https://doi.org/10.1029/2011JD016530, 2011a. a
Pedro, J. B., Smith, A. M., Simon, K. J., van Ommen, T. D., and Curran, M. A. J.: High-resolution records of the beryllium-10 solar activity proxy in ice from Law Dome, East Antarctica: measurement, reproducibility and principal trends, Clim. Past, 7, 707–721, https://doi.org/10.5194/cp-7-707-2011, 2011b. a
Pedro, J. B., McConnell, J. R., van Ommen, T. D., Fink, D., Curran, M. A.,
Smith, A. M., Simon, K. J., Moy, A. D., and Das, S. B.: Solar and climate
influences on ice core 10Be records from Antarctica and Greenland during the
neutron monitor era, Earth Planet. Sc. Lett., 355–356, 174–186,
https://doi.org/10.1016/j.epsl.2012.08.038, 2012. a
Pfitzner, M. L. and Australian National Antarctic Research Expeditions: The Wilkes ice cap project, 1966, Australian Government Publishing Service, Canberra, https://nla.gov.au/nla.cat-vn8147198 (last access: 18 July 2022), 1980. a
Plummer, C. T., Curran, M. A. J., van Ommen, T. D., Rasmussen, S. O., Moy, A. D., Vance, T. R., Clausen, H. B., Vinther, B. M., and Mayewski, P. A.: An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the 1450s CE eruption of Kuwae, Vanuatu, Clim. Past, 8, 1929–1940, https://doi.org/10.5194/cp-8-1929-2012, 2012. a, b, c, d, e, f, g, h, i
Roberts, J., Plummer, C., Vance, T., van Ommen, T., Moy, A., Poynter, S., Treverrow, A., Curran, M., and George, S.: A 2000-year annual record of snow accumulation rates for Law Dome, East Antarctica, Clim. Past, 11, 697–707, https://doi.org/10.5194/cp-11-697-2015, 2015. a, b, c, d
Roberts, J. L., Van Ommen, T. D., Curran, M. A. J., and Vance, T. R.:
Methanesulphonic acid loss during ice-core storage: Recommendations based on
a new diffusion coefficient, J. Glaciol., 55, 784–788,
https://doi.org/10.3189/002214309790152474, 2009. a
Rubino, M., Etheridge, D. M., Thornton, D. P., Howden, R., Allison, C. E., Francey, R. J., Langenfelds, R. L., Steele, L. P., Trudinger, C. M., Spencer, D. A., Curran, M. A. J., van Ommen, T. D., and Smith, A. M.: Revised records of atmospheric trace gases CO2, CH4, N2O, and δ13C-CO2 over the last 2000 years from Law Dome, Antarctica, Earth Syst. Sci. Data, 11, 473–492, https://doi.org/10.5194/essd-11-473-2019, 2019. a
Scambos, T. A., Haran, T. M., Fahnestock, M. A., Painter, T. H., and Bohlander,
J.: MODIS-based Mosaic of Antarctica (MOA) data sets: Continent-wide surface
morphology and snow grain size, Remote Sens. Environ., 111, 242–257,
https://doi.org/10.1016/j.rse.2006.12.020, 2007. a
Sigl, M., Fudge, T. J., Winstrup, M., Cole-Dai, J., Ferris, D., McConnell, J. R., Taylor, K. C., Welten, K. C., Woodruff, T. E., Adolphi, F., Bisiaux, M., Brook, E. J., Buizert, C., Caffee, M. W., Dunbar, N. W., Edwards, R., Geng, L., Iverson, N., Koffman, B., Layman, L., Maselli, O. J., McGwire, K., Muscheler, R., Nishiizumi, K., Pasteris, D. R., Rhodes, R. H., and Sowers, T. A.: The WAIS Divide deep ice core WD2014 chronology – Part 2: Annual-layer counting (0–31 ka BP), Clim. Past, 12, 769–786, https://doi.org/10.5194/cp-12-769-2016, 2016. a, b
Souney, J. M., Mayewski, P. A., Goodwin, I. D., Meeker, L. D., Morgan, V.,
Curran, M. A., Van Ommen, T. D., and Palmer, A. S.: A 700-year record of
atmospheric circulation developed from the Law Dome ice core, East
Antarctica, J. Geophys. Res.-Atmos., 107, ACL 1-1–ACL 1-9,
https://doi.org/10.1029/2002JD002104, 2002. a
Stenni, B., Curran, M. A. J., Abram, N. J., Orsi, A., Goursaud, S., Masson-Delmotte, V., Neukom, R., Goosse, H., Divine, D., van Ommen, T., Steig, E. J., Dixon, D. A., Thomas, E. R., Bertler, N. A. N., Isaksson, E., Ekaykin, A., Werner, M., and Frezzotti, M.: Antarctic climate variability on regional and continental scales over the last 2000 years, Clim. Past, 13, 1609–1634, https://doi.org/10.5194/cp-13-1609-2017, 2017. a, b, c
Thomas, E. R., van Wessem, J. M., Roberts, J., Isaksson, E., Schlosser, E., Fudge, T. J., Vallelonga, P., Medley, B., Lenaerts, J., Bertler, N., van den Broeke, M. R., Dixon, D. A., Frezzotti, M., Stenni, B., Curran, M., and Ekaykin, A. A.: Regional Antarctic snow accumulation over the past 1000 years, Clim. Past, 13, 1491–1513, https://doi.org/10.5194/cp-13-1491-2017, 2017. a, b
Tozer, C. R., Kiem, A. S., Vance, T. R., Roberts, J. L., Curran, M. A., and
Moy, A. D.: Reconstructing pre-instrumental streamflow in Eastern Australia
using a water balance approach, J. Hydrol., 558, 632–646,
https://doi.org/10.1016/j.jhydrol.2018.01.064, 2018. a
Truong, C., Oudre, L., and Vayatis, N.: Selective review of offline change
point detection methods, Signal Processing, 167, 107299,
https://doi.org/10.1016/j.sigpro.2019.107299, 2020.
a
Udy, D. G., Vance, T. R., Kiem, A. S., Holbrook, N. J., and Curran, M. A. J.:
Links between Large-Scale Modes of Climate Variability and Synoptic Weather
Patterns in the Southern Indian Ocean, J. Climate, 34, 883–899,
https://doi.org/10.1175/JCLI-D-20-0297.1, 2021. a, b
van Ommen, T. D. and Morgan, V.: Peroxide concentrations in the Dome Summit
South ice core, Law Dome, Antarctica, J. Geophys. Res.-Atmos., 101,
15147–15152, https://doi.org/10.1029/96JD00838, 1996. a
van Ommen, T. D. and Morgan, V.: Calibrating the ice core paleothermometer
using seasonality, J. Geophys. Res.-Atmos., 102,
9351–9357, https://doi.org/10.1029/96JD04014, 1997. a, b
van Ommen, T. D. and Morgan, V.: Snowfall increase in coastal East Antarctica
linked with southwest Western Australian drought, Nat. Geosci., 3, 267–272,
https://doi.org/10.1038/ngeo761, 2010. a
van Ommen, T. D., Morgan, V. I., Jacka, T. H., Woon, S., and Elcheikh, A.:
Near-surface temperatures in the Dome Summit South (Law Dome, East
Antarctica) borehole, Ann. Glaciol., 29, 141–144,
https://doi.org/10.3189/172756499781821382, 1999. a
Vance, T. R., van Ommen, T. D., Curran, M. A. J., Plummer, C. T., and Moy,
A. D.: A Millennial Proxy Record of ENSO and Eastern Australian Rainfall
from the Law Dome Ice Core, East Antarctica, J. Climate, 26, 710–725,
https://doi.org/10.1175/JCLI-D-12-00003.1, 2013. a, b, c
Vance, T. R., Roberts, J. L., Plummer, C. T., Kiem, A. S., and van Ommen,
T. D.: Interdecadal Pacific variability and eastern Australian megadroughts
over the last millennium, Geophys. Res. Lett., 42, 129–137,
https://doi.org/10.1002/2014GL062447, 2015. a, b, c
Vance, T. R., Roberts, J. L., Moy, A. D., Curran, M. A. J., Tozer, C. R., Gallant, A. J. E., Abram, N. J., van Ommen, T. D., Young, D. A., Grima, C., Blankenship, D. D., and Siegert, M. J.: Optimal site selection for a high-resolution ice core record in East Antarctica, Clim. Past, 12, 595–610, https://doi.org/10.5194/cp-12-595-2016, 2016. a
Vance, T. R., Kiem, Anthony S., J., M., L., Roberts, J. L. R., Plummer, C. T.,
Moy, A. D., Curran, M. A., and van Ommen, T. D.: Pacific decadal variability over the last 2000 years and implications for climatic risk, Commun. Earth Environ., 3, 33, https://doi.org/10.1038/s43247-022-00359-z, 2022. a, b, c
Veres, D., Bazin, L., Landais, A., Toyé Mahamadou Kele, H., Lemieux-Dudon, B., Parrenin, F., Martinerie, P., Blayo, E., Blunier, T., Capron, E., Chappellaz, J., Rasmussen, S. O., Severi, M., Svensson, A., Vinther, B., and Wolff, E. W.: The Antarctic ice core chronology (AICC2012): an optimized multi-parameter and multi-site dating approach for the last 120 thousand years, Clim. Past, 9, 1733–1748, https://doi.org/10.5194/cp-9-1733-2013, 2013. a
Zheng, Y., Jong, L. M., Phipps, S. J., Roberts, J. L., Moy, A. D., Curran, M. A. J., and van Ommen, T. D.: Extending and understanding the South West Western Australian rainfall record using a snowfall reconstruction from Law Dome, East Antarctica, Clim. Past, 17, 1973–1987, https://doi.org/10.5194/cp-17-1973-2021, 2021. a
Short summary
Ice core records from Law Dome in East Antarctica, collected over the the last 3 decades, provide high-resolution data for studies of the climate of Antarctica, Australia and the Southern and Indo-Pacific oceans. Here, we present a set of annually dated records from Law Dome covering the last 2000 years. This dataset provides an update and extensions both forward and back in time of previously published subsets of the data, bringing them together into a coherent set with improved dating.
Ice core records from Law Dome in East Antarctica, collected over the the last 3 decades,...
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