An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica

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An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica. / Lee, James E.; Brook, Edward J.; Bertler, Nancy A. N.; Buizert, Christo; Baisden, Troy; Blunier, Thomas; Ciobanu, V. Gabriela; Conway, Howard; Dahl-Jensen, Dorthe; Fudge, Tyler J.; Hindmarsh, Richard; Keller, Elizabeth D.; Parrenin, Frederic; Severinghaus, Jeffrey P.; Vallelonga, Paul; Waddington, Edwin D.; Winstrup, Mai.

In: Climate of the Past, Vol. 16, No. 5, 02.09.2020, p. 1691-1713.

Research output: Contribution to journalJournal articleResearchpeer-review

Harvard

Lee, JE, Brook, EJ, Bertler, NAN, Buizert, C, Baisden, T, Blunier, T, Ciobanu, VG, Conway, H, Dahl-Jensen, D, Fudge, TJ, Hindmarsh, R, Keller, ED, Parrenin, F, Severinghaus, JP, Vallelonga, P, Waddington, ED & Winstrup, M 2020, 'An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica', Climate of the Past, vol. 16, no. 5, pp. 1691-1713. https://doi.org/10.5194/cp-16-1691-2020

APA

Lee, J. E., Brook, E. J., Bertler, N. A. N., Buizert, C., Baisden, T., Blunier, T., ... Winstrup, M. (2020). An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica. Climate of the Past, 16(5), 1691-1713. https://doi.org/10.5194/cp-16-1691-2020

Vancouver

Lee JE, Brook EJ, Bertler NAN, Buizert C, Baisden T, Blunier T et al. An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica. Climate of the Past. 2020 Sep 2;16(5):1691-1713. https://doi.org/10.5194/cp-16-1691-2020

Author

Lee, James E. ; Brook, Edward J. ; Bertler, Nancy A. N. ; Buizert, Christo ; Baisden, Troy ; Blunier, Thomas ; Ciobanu, V. Gabriela ; Conway, Howard ; Dahl-Jensen, Dorthe ; Fudge, Tyler J. ; Hindmarsh, Richard ; Keller, Elizabeth D. ; Parrenin, Frederic ; Severinghaus, Jeffrey P. ; Vallelonga, Paul ; Waddington, Edwin D. ; Winstrup, Mai. / An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica. In: Climate of the Past. 2020 ; Vol. 16, No. 5. pp. 1691-1713.

Bibtex

@article{97f08a98bb384abdaec39216d6f10552,
title = "An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica",
abstract = "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 information about the past configuration of the West Antarctic Ice Sheet (WAIS) and its retreat during the last deglaciation. In this work we present the RICE17 chronology, which establishes the depth-age relationship for the top 754m of the 763m core. RICE17 is a composite chronology combining annual layer interpretations for 0-343m (Winstrup et al., 2019) with new estimates for gas and ice ages based on synchronization of CH4 and delta O-18(atm) records to corresponding records from the WAIS Divide ice core and by modeling of the gas age-ice age difference.Novel aspects of this work include the following: (1) an automated algorithm for multiproxy stratigraphic synchronization of high-resolution gas records; (2) synchronization using centennial-scale variations in methane for preanthropogenic time periods (60-720 m, 1971 CE to 30 ka), a strategy applicable for future ice cores; and (3) the observation of a continuous climate record back to similar to 65 ka providing evidence that the Roosevelt Island Ice Dome was a constant feature throughout the last glacial period.",
keywords = "CONTINUOUS-FLOW ANALYSIS, HIGH-RESOLUTION RECORD, ABRUPT CLIMATE-CHANGE, ISOTOPIC COMPOSITION, WEST ANTARCTICA, AIR-CONTENT, SIPLE-DOME, WD2014 CHRONOLOGY, SHEET ELEVATIONS, GAS RECORDS",
author = "Lee, {James E.} and Brook, {Edward J.} and Bertler, {Nancy A. N.} and Christo Buizert and Troy Baisden and Thomas Blunier and Ciobanu, {V. Gabriela} and Howard Conway and Dorthe Dahl-Jensen and Fudge, {Tyler J.} and Richard Hindmarsh and Keller, {Elizabeth D.} and Frederic Parrenin and Severinghaus, {Jeffrey P.} and Paul Vallelonga and Waddington, {Edwin D.} and Mai Winstrup",
year = "2020",
month = "9",
day = "2",
doi = "10.5194/cp-16-1691-2020",
language = "English",
volume = "16",
pages = "1691--1713",
journal = "Climate of the Past",
issn = "1814-9324",
publisher = "Copernicus GmbH",
number = "5",

}

RIS

TY - JOUR

T1 - An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica

AU - Lee, James E.

AU - Brook, Edward J.

AU - Bertler, Nancy A. N.

AU - Buizert, Christo

AU - Baisden, Troy

AU - Blunier, Thomas

AU - Ciobanu, V. Gabriela

AU - Conway, Howard

AU - Dahl-Jensen, Dorthe

AU - Fudge, Tyler J.

AU - Hindmarsh, Richard

AU - Keller, Elizabeth D.

AU - Parrenin, Frederic

AU - Severinghaus, Jeffrey P.

AU - Vallelonga, Paul

AU - Waddington, Edwin D.

AU - Winstrup, Mai

PY - 2020/9/2

Y1 - 2020/9/2

N2 - 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 information about the past configuration of the West Antarctic Ice Sheet (WAIS) and its retreat during the last deglaciation. In this work we present the RICE17 chronology, which establishes the depth-age relationship for the top 754m of the 763m core. RICE17 is a composite chronology combining annual layer interpretations for 0-343m (Winstrup et al., 2019) with new estimates for gas and ice ages based on synchronization of CH4 and delta O-18(atm) records to corresponding records from the WAIS Divide ice core and by modeling of the gas age-ice age difference.Novel aspects of this work include the following: (1) an automated algorithm for multiproxy stratigraphic synchronization of high-resolution gas records; (2) synchronization using centennial-scale variations in methane for preanthropogenic time periods (60-720 m, 1971 CE to 30 ka), a strategy applicable for future ice cores; and (3) the observation of a continuous climate record back to similar to 65 ka providing evidence that the Roosevelt Island Ice Dome was a constant feature throughout the last glacial period.

AB - 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 information about the past configuration of the West Antarctic Ice Sheet (WAIS) and its retreat during the last deglaciation. In this work we present the RICE17 chronology, which establishes the depth-age relationship for the top 754m of the 763m core. RICE17 is a composite chronology combining annual layer interpretations for 0-343m (Winstrup et al., 2019) with new estimates for gas and ice ages based on synchronization of CH4 and delta O-18(atm) records to corresponding records from the WAIS Divide ice core and by modeling of the gas age-ice age difference.Novel aspects of this work include the following: (1) an automated algorithm for multiproxy stratigraphic synchronization of high-resolution gas records; (2) synchronization using centennial-scale variations in methane for preanthropogenic time periods (60-720 m, 1971 CE to 30 ka), a strategy applicable for future ice cores; and (3) the observation of a continuous climate record back to similar to 65 ka providing evidence that the Roosevelt Island Ice Dome was a constant feature throughout the last glacial period.

KW - CONTINUOUS-FLOW ANALYSIS

KW - HIGH-RESOLUTION RECORD

KW - ABRUPT CLIMATE-CHANGE

KW - ISOTOPIC COMPOSITION

KW - WEST ANTARCTICA

KW - AIR-CONTENT

KW - SIPLE-DOME

KW - WD2014 CHRONOLOGY

KW - SHEET ELEVATIONS

KW - GAS RECORDS

U2 - 10.5194/cp-16-1691-2020

DO - 10.5194/cp-16-1691-2020

M3 - Journal article

VL - 16

SP - 1691

EP - 1713

JO - Climate of the Past

JF - Climate of the Past

SN - 1814-9324

IS - 5

ER -

ID: 249104792