WAIS Divide Deep ice core 0-68 ka WD2014 chronology
The West Antarctic Ice Sheet (WAIS) Divide deep ice core WD2014 chronology, consisting of ice age, gas age, delta-age and uncertainties therein. The West Antarctic Ice Sheet Divide (WAIS Divide, WD) ice core is a newly drilled, high-accumulation deep ice core that provides Antarctic climate records...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Dataset |
Language: | English |
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PANGAEA
2019
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Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.902577 https://doi.org/10.1594/PANGAEA.902577 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.902577 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age difference difference error error annual-layer-counting Antarctica west Calendar age standard error chronology DEPTH ice/snow Gas age Greenland ice-core ICEDRILL Ice drill Methane WAIS WAIS Divide WDC-06A West Antarctic Ice Sheet Divide ice core project |
spellingShingle |
Age difference difference error error annual-layer-counting Antarctica west Calendar age standard error chronology DEPTH ice/snow Gas age Greenland ice-core ICEDRILL Ice drill Methane WAIS WAIS Divide WDC-06A West Antarctic Ice Sheet Divide ice core project Sigl, Michael Buizert, Christo Fudge, Tyler J Winstrup, Mai Cole-Dai, Jihong McConnell, Joseph R Ferris, David G Rhodes, Rachael H Taylor, Kendrick C Welten, Kees C Woodruff, Thomas E Adolphi, Florian Baggenstos, Daniel Brook, Edward J Caffee, Marc W Clow, Gary D Cheng, Hai Cuffey, Kurt M Dunbar, Nelia W Edwards, Ross L Edwards, Larry Geng, Lei Iverson, Nels Koffman, Bess G Layman, Larry Markle, Bradley R Maselli, Olivia J McGwire, Kenneth C Muscheler, Raimund Nishiizumi, Kunihiko Pasteris, Daniel R Severinghaus, Jeffrey P Sowers, Todd A Steig, Eric J WAIS Divide Deep ice core 0-68 ka WD2014 chronology |
topic_facet |
Age difference difference error error annual-layer-counting Antarctica west Calendar age standard error chronology DEPTH ice/snow Gas age Greenland ice-core ICEDRILL Ice drill Methane WAIS WAIS Divide WDC-06A West Antarctic Ice Sheet Divide ice core project |
description |
The West Antarctic Ice Sheet (WAIS) Divide deep ice core WD2014 chronology, consisting of ice age, gas age, delta-age and uncertainties therein. The West Antarctic Ice Sheet Divide (WAIS Divide, WD) ice core is a newly drilled, high-accumulation deep ice core that provides Antarctic climate records of the past ~68 ka at unprecedented temporal resolution. The upper 2850 m (back to 31.2 ka BP; Sigl et al., 2015, Sigl et al., 2016) have been dated using annual-layer counting based on counting of annual layers observed in the chemical, dust and electrical conductivity records. The measurements were interpreted manually and with the aid of two automated methods. We validated the chronology by comparing of the cosmogenic isotope records of 10Be from WAIS Divide and 14C for IntCal13. We demonstrated that over the Holocene WD2014 was consistently accurate to better than 0.5% of the age. The chronology for the deep part of the core (below 2850m; 67.8-31.2 ka BP; Buizert et al., 2015) is based on stratigraphic matching to annual-layer-counted Greenland ice cores using globally well-mixed atmospheric methane. We calculate the WD gas age-ice age difference (Delta age) using a combination of firn densification modeling, ice-flow modeling, and a data set of d15N-N2, a proxy for past firn column thickness. The largest Delta age at WD occurs during the Last Glacial Maximum, and is 525 +/- 120 years. We synchronized the WD chronology to a linearly scaled version of the layer-counted Greenland Ice Core Chronology (GICC05), which brings the age of Dansgaard-Oeschger (DO) events into agreement with the U/Th absolutely dated Hulu Cave speleothem record. |
format |
Dataset |
author |
Sigl, Michael Buizert, Christo Fudge, Tyler J Winstrup, Mai Cole-Dai, Jihong McConnell, Joseph R Ferris, David G Rhodes, Rachael H Taylor, Kendrick C Welten, Kees C Woodruff, Thomas E Adolphi, Florian Baggenstos, Daniel Brook, Edward J Caffee, Marc W Clow, Gary D Cheng, Hai Cuffey, Kurt M Dunbar, Nelia W Edwards, Ross L Edwards, Larry Geng, Lei Iverson, Nels Koffman, Bess G Layman, Larry Markle, Bradley R Maselli, Olivia J McGwire, Kenneth C Muscheler, Raimund Nishiizumi, Kunihiko Pasteris, Daniel R Severinghaus, Jeffrey P Sowers, Todd A Steig, Eric J |
author_facet |
Sigl, Michael Buizert, Christo Fudge, Tyler J Winstrup, Mai Cole-Dai, Jihong McConnell, Joseph R Ferris, David G Rhodes, Rachael H Taylor, Kendrick C Welten, Kees C Woodruff, Thomas E Adolphi, Florian Baggenstos, Daniel Brook, Edward J Caffee, Marc W Clow, Gary D Cheng, Hai Cuffey, Kurt M Dunbar, Nelia W Edwards, Ross L Edwards, Larry Geng, Lei Iverson, Nels Koffman, Bess G Layman, Larry Markle, Bradley R Maselli, Olivia J McGwire, Kenneth C Muscheler, Raimund Nishiizumi, Kunihiko Pasteris, Daniel R Severinghaus, Jeffrey P Sowers, Todd A Steig, Eric J |
author_sort |
Sigl, Michael |
title |
WAIS Divide Deep ice core 0-68 ka WD2014 chronology |
title_short |
WAIS Divide Deep ice core 0-68 ka WD2014 chronology |
title_full |
WAIS Divide Deep ice core 0-68 ka WD2014 chronology |
title_fullStr |
WAIS Divide Deep ice core 0-68 ka WD2014 chronology |
title_full_unstemmed |
WAIS Divide Deep ice core 0-68 ka WD2014 chronology |
title_sort |
wais divide deep ice core 0-68 ka wd2014 chronology |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.902577 https://doi.org/10.1594/PANGAEA.902577 |
op_coverage |
LATITUDE: -79.480000 * LONGITUDE: -112.110000 * MINIMUM DEPTH, ice/snow: 0.360 m * MAXIMUM DEPTH, ice/snow: 3392.936 m |
long_lat |
ENVELOPE(8.610,8.610,62.837,62.837) ENVELOPE(-112.110000,-112.110000,-79.480000,-79.480000) |
geographic |
Antarctic West Antarctic Ice Sheet Greenland Hulu |
geographic_facet |
Antarctic West Antarctic Ice Sheet Greenland Hulu |
genre |
Antarc* Antarctic Antarctica Greenland Greenland ice core Greenland ice cores ice core Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica Greenland Greenland ice core Greenland ice cores ice core Ice Sheet |
op_relation |
Buizert, Christo; Cuffey, Kurt M; Severinghaus, Jeffrey P; Baggenstos, Daniel; Fudge, Tyler J; Steig, Eric J; Markle, Bradley R; Winstrup, Mai; Rhodes, Rachael H; Brook, Edward J; Sowers, Todd A; Clow, Gary D; Cheng, Hai; Edwards, Ross L; Sigl, Michael; McConnell, Joseph R; Taylor, Kendrick C (2015): The WAIS Divide deep ice core WD2014 chronology - Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Climate of the Past, 11(2), 153-173, https://doi.org/10.5194/cp-11-153-2015 Sigl, Michael; Fudge, Tyler J; Winstrup, Mai; Cole-Dai, Jihong; Ferris, David G; McConnell, Joseph R; Taylor, Kendrick C; Welten, Kees C; Woodruff, Thomas E; Adolphi, Florian; Bisiaux, Marion M; Brook, Edward J; Buizert, Christo; Caffee, Marc W; Dunbar, Nelia W; Edwards, Ross L; Geng, Lei; Iverson, Nels; Koffman, Bess G; Layman, Lawrence; Maselli, Olivia J; McGwire, Kenneth C; Muscheler, Raimund; Nishiizumi, Kunihiko; Pasteris, Daniel R; Rhodes, Rachael H; Sowers, Todd A (2016): The WAIS Divide deep ice core WD2014 chronology – Part 2: Annual-layer counting (0–31 ka BP). Climate of the Past, 12(3), 769-786, https://doi.org/10.5194/cp-12-769-2016 Sigl, Michael; Winstrup, Mai; McConnell, Joseph R; Welten, Kees C; Plunkett, Gill; Ludlow, F; Büntgen, Ulf; Caffee, Marc W; Chellman, Nathan J; Dahl-Jensen, Dorthe; Fischer, H; Kipfstuhl, Sepp; Kostick, C; Maselli, Olivia J; Mekhaldi, Florian; Mulvaney, Robert; Muscheler, Raimund; Pasteris, Daniel R; Pilcher, John R; Salzer, Matthew W; Schüpbach, Simon; Steffensen, J P; Vinther, Bo Møllesøe; Woodruff, Thomas E (2015): Timing and climate forcing of volcanic eruptions for the past 2,500 years. Nature, 523(7562), 543-549, https://doi.org/10.1038/nature14565 https://doi.pangaea.de/10.1594/PANGAEA.902577 https://doi.org/10.1594/PANGAEA.902577 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.90257710.5194/cp-11-153-201510.5194/cp-12-769-201610.1038/nature14565 |
_version_ |
1811637579050647552 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.902577 2024-09-30T14:23:29+00:00 WAIS Divide Deep ice core 0-68 ka WD2014 chronology Sigl, Michael Buizert, Christo Fudge, Tyler J Winstrup, Mai Cole-Dai, Jihong McConnell, Joseph R Ferris, David G Rhodes, Rachael H Taylor, Kendrick C Welten, Kees C Woodruff, Thomas E Adolphi, Florian Baggenstos, Daniel Brook, Edward J Caffee, Marc W Clow, Gary D Cheng, Hai Cuffey, Kurt M Dunbar, Nelia W Edwards, Ross L Edwards, Larry Geng, Lei Iverson, Nels Koffman, Bess G Layman, Larry Markle, Bradley R Maselli, Olivia J McGwire, Kenneth C Muscheler, Raimund Nishiizumi, Kunihiko Pasteris, Daniel R Severinghaus, Jeffrey P Sowers, Todd A Steig, Eric J LATITUDE: -79.480000 * LONGITUDE: -112.110000 * MINIMUM DEPTH, ice/snow: 0.360 m * MAXIMUM DEPTH, ice/snow: 3392.936 m 2019 text/tab-separated-values, 392326 data points https://doi.pangaea.de/10.1594/PANGAEA.902577 https://doi.org/10.1594/PANGAEA.902577 en eng PANGAEA Buizert, Christo; Cuffey, Kurt M; Severinghaus, Jeffrey P; Baggenstos, Daniel; Fudge, Tyler J; Steig, Eric J; Markle, Bradley R; Winstrup, Mai; Rhodes, Rachael H; Brook, Edward J; Sowers, Todd A; Clow, Gary D; Cheng, Hai; Edwards, Ross L; Sigl, Michael; McConnell, Joseph R; Taylor, Kendrick C (2015): The WAIS Divide deep ice core WD2014 chronology - Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Climate of the Past, 11(2), 153-173, https://doi.org/10.5194/cp-11-153-2015 Sigl, Michael; Fudge, Tyler J; Winstrup, Mai; Cole-Dai, Jihong; Ferris, David G; McConnell, Joseph R; Taylor, Kendrick C; Welten, Kees C; Woodruff, Thomas E; Adolphi, Florian; Bisiaux, Marion M; Brook, Edward J; Buizert, Christo; Caffee, Marc W; Dunbar, Nelia W; Edwards, Ross L; Geng, Lei; Iverson, Nels; Koffman, Bess G; Layman, Lawrence; Maselli, Olivia J; McGwire, Kenneth C; Muscheler, Raimund; Nishiizumi, Kunihiko; Pasteris, Daniel R; Rhodes, Rachael H; Sowers, Todd A (2016): The WAIS Divide deep ice core WD2014 chronology – Part 2: Annual-layer counting (0–31 ka BP). Climate of the Past, 12(3), 769-786, https://doi.org/10.5194/cp-12-769-2016 Sigl, Michael; Winstrup, Mai; McConnell, Joseph R; Welten, Kees C; Plunkett, Gill; Ludlow, F; Büntgen, Ulf; Caffee, Marc W; Chellman, Nathan J; Dahl-Jensen, Dorthe; Fischer, H; Kipfstuhl, Sepp; Kostick, C; Maselli, Olivia J; Mekhaldi, Florian; Mulvaney, Robert; Muscheler, Raimund; Pasteris, Daniel R; Pilcher, John R; Salzer, Matthew W; Schüpbach, Simon; Steffensen, J P; Vinther, Bo Møllesøe; Woodruff, Thomas E (2015): Timing and climate forcing of volcanic eruptions for the past 2,500 years. Nature, 523(7562), 543-549, https://doi.org/10.1038/nature14565 https://doi.pangaea.de/10.1594/PANGAEA.902577 https://doi.org/10.1594/PANGAEA.902577 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Age difference difference error error annual-layer-counting Antarctica west Calendar age standard error chronology DEPTH ice/snow Gas age Greenland ice-core ICEDRILL Ice drill Methane WAIS WAIS Divide WDC-06A West Antarctic Ice Sheet Divide ice core project dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.90257710.5194/cp-11-153-201510.5194/cp-12-769-201610.1038/nature14565 2024-09-03T23:52:03Z The West Antarctic Ice Sheet (WAIS) Divide deep ice core WD2014 chronology, consisting of ice age, gas age, delta-age and uncertainties therein. The West Antarctic Ice Sheet Divide (WAIS Divide, WD) ice core is a newly drilled, high-accumulation deep ice core that provides Antarctic climate records of the past ~68 ka at unprecedented temporal resolution. The upper 2850 m (back to 31.2 ka BP; Sigl et al., 2015, Sigl et al., 2016) have been dated using annual-layer counting based on counting of annual layers observed in the chemical, dust and electrical conductivity records. The measurements were interpreted manually and with the aid of two automated methods. We validated the chronology by comparing of the cosmogenic isotope records of 10Be from WAIS Divide and 14C for IntCal13. We demonstrated that over the Holocene WD2014 was consistently accurate to better than 0.5% of the age. The chronology for the deep part of the core (below 2850m; 67.8-31.2 ka BP; Buizert et al., 2015) is based on stratigraphic matching to annual-layer-counted Greenland ice cores using globally well-mixed atmospheric methane. We calculate the WD gas age-ice age difference (Delta age) using a combination of firn densification modeling, ice-flow modeling, and a data set of d15N-N2, a proxy for past firn column thickness. The largest Delta age at WD occurs during the Last Glacial Maximum, and is 525 +/- 120 years. We synchronized the WD chronology to a linearly scaled version of the layer-counted Greenland Ice Core Chronology (GICC05), which brings the age of Dansgaard-Oeschger (DO) events into agreement with the U/Th absolutely dated Hulu Cave speleothem record. Dataset Antarc* Antarctic Antarctica Greenland Greenland ice core Greenland ice cores ice core Ice Sheet PANGAEA - Data Publisher for Earth & Environmental Science Antarctic West Antarctic Ice Sheet Greenland Hulu ENVELOPE(8.610,8.610,62.837,62.837) ENVELOPE(-112.110000,-112.110000,-79.480000,-79.480000) |