(Table 3) Age determination of sediment core HLY02-02-51
The Bering Sea gateway between the Pacific and Arctic oceans impacts global climate when glacial-interglacial shifts in shore line position and ice coverage change regional albedo. Previous work has shown that during the last glacial termination and into the Holocene, sea level rises and sea ice cov...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.831621 2024-09-15T17:36:01+00:00 (Table 3) Age determination of sediment core HLY02-02-51 Caissie, Beth Brigham-Grette, Julie Lawrence, Kira T Herbert, Timothy D Cook, Mea S LATITUDE: 54.553100 * LONGITUDE: -168.666900 * DATE/TIME START: 2002-07-03T00:00:00 * DATE/TIME END: 2002-07-03T00:00:00 * MINIMUM DEPTH, sediment/rock: 1.35 m * MAXIMUM DEPTH, sediment/rock: 6.65 m 2010 text/tab-separated-values, 20 data points https://doi.pangaea.de/10.1594/PANGAEA.831621 https://doi.org/10.1594/PANGAEA.831621 en eng PANGAEA Hughen, Konrad A; Baillie, Mike G L; Bard, Edouard; Beck, J Warren; Bertrand, Chanda J H; Blackwell, Paul G; Buck, Caitlin E; Burr, George S; Cutler, Kirsten B; Damon, Paul E; Edwards, R Lawrence; Fairbanks, Richard G; Friedrich, Michael; Guilderson, Thomas P; Kromer, Bernd; McCormac, F Gerry; Manning, Sturt W; Ramsey, Christopher Bronk; Reimer, Paula J; Reimer, Ron W; Remmele, Sabine; Southon, John R; Stuiver, Minze; Talamo, Sahra; Taylor, Frederick W; van der Plicht, Johannes; Weyhenmeyer, Constanze E (2004): Marine04 marine radiocarbon age calibration, 0-26 cal kyr BP. Radiocarbon, 46(3), 1059-1086, https://doi.org/10.1017/S0033822200033002 https://doi.pangaea.de/10.1594/PANGAEA.831621 https://doi.org/10.1594/PANGAEA.831621 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Caissie, Beth; Brigham-Grette, Julie; Lawrence, Kira T; Herbert, Timothy D; Cook, Mea S (2010): Last Glacial Maximum to Holocene sea surface conditions at Umnak Plateau, Bering Sea, as inferred from diatom, alkenone, and stable isotope records. Paleoceanography, 25(1), PA1206, https://doi.org/10.1029/2008PA001671 Age 14C AMS 14C calibrated CALIB 5.0.2 (Stuiver et al. 2005) dated dated standard deviation Bering Sea Calendar age maximum/old minimum/young DEPTH sediment/rock HEA02 Healy HLY0202 HLY02-02-51 JPC Jumbo Piston Core dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.83162110.1029/2008PA00167110.1017/S0033822200033002 2024-07-24T02:31:32Z The Bering Sea gateway between the Pacific and Arctic oceans impacts global climate when glacial-interglacial shifts in shore line position and ice coverage change regional albedo. Previous work has shown that during the last glacial termination and into the Holocene, sea level rises and sea ice coverage diminishes from perennial to absent. Yet, existing work has not quantified sea ice duration or sea surface temperatures (SST) during this transition. Here we combine diatom assemblages with the first alkenone record from the Bering Sea to provide a semiquantitative record of sea ice duration, SST, and productivity change since the Last Glacial Maximum (LGM). During the LGM, diatom assemblages indicate that sea ice covered the southeastern Bering Sea perennially. At 15.1 cal ka B.P., the diatom assemblage shifts to one more characteristic of seasonal sea ice and alkenones occur in the sediments in low concentrations. Deglaciation is characterized by laminated intervals with highly productive and diverse diatom assemblages and inferred high coccolithophorid production. At 11.3 cal ka B.P. the diatom assemblage shifts from one dominated by sea ice species to one dominated by a warmer water, North Pacific species. Simultaneously, the SST increases by 3°C and the southeastern Bering Sea becomes ice-free year-round. Productivity and temperature proxies are positively correlated with independently dated records from elsewhere in the Bering Sea, the Sea of Okhotsk, and the North Pacific, indicating that productivity and SST changes are coeval across the region. Dataset albedo Bering Sea Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-168.666900,-168.666900,54.553100,54.553100) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age 14C AMS 14C calibrated CALIB 5.0.2 (Stuiver et al. 2005) dated dated standard deviation Bering Sea Calendar age maximum/old minimum/young DEPTH sediment/rock HEA02 Healy HLY0202 HLY02-02-51 JPC Jumbo Piston Core |
spellingShingle |
Age 14C AMS 14C calibrated CALIB 5.0.2 (Stuiver et al. 2005) dated dated standard deviation Bering Sea Calendar age maximum/old minimum/young DEPTH sediment/rock HEA02 Healy HLY0202 HLY02-02-51 JPC Jumbo Piston Core Caissie, Beth Brigham-Grette, Julie Lawrence, Kira T Herbert, Timothy D Cook, Mea S (Table 3) Age determination of sediment core HLY02-02-51 |
topic_facet |
Age 14C AMS 14C calibrated CALIB 5.0.2 (Stuiver et al. 2005) dated dated standard deviation Bering Sea Calendar age maximum/old minimum/young DEPTH sediment/rock HEA02 Healy HLY0202 HLY02-02-51 JPC Jumbo Piston Core |
description |
The Bering Sea gateway between the Pacific and Arctic oceans impacts global climate when glacial-interglacial shifts in shore line position and ice coverage change regional albedo. Previous work has shown that during the last glacial termination and into the Holocene, sea level rises and sea ice coverage diminishes from perennial to absent. Yet, existing work has not quantified sea ice duration or sea surface temperatures (SST) during this transition. Here we combine diatom assemblages with the first alkenone record from the Bering Sea to provide a semiquantitative record of sea ice duration, SST, and productivity change since the Last Glacial Maximum (LGM). During the LGM, diatom assemblages indicate that sea ice covered the southeastern Bering Sea perennially. At 15.1 cal ka B.P., the diatom assemblage shifts to one more characteristic of seasonal sea ice and alkenones occur in the sediments in low concentrations. Deglaciation is characterized by laminated intervals with highly productive and diverse diatom assemblages and inferred high coccolithophorid production. At 11.3 cal ka B.P. the diatom assemblage shifts from one dominated by sea ice species to one dominated by a warmer water, North Pacific species. Simultaneously, the SST increases by 3°C and the southeastern Bering Sea becomes ice-free year-round. Productivity and temperature proxies are positively correlated with independently dated records from elsewhere in the Bering Sea, the Sea of Okhotsk, and the North Pacific, indicating that productivity and SST changes are coeval across the region. |
format |
Dataset |
author |
Caissie, Beth Brigham-Grette, Julie Lawrence, Kira T Herbert, Timothy D Cook, Mea S |
author_facet |
Caissie, Beth Brigham-Grette, Julie Lawrence, Kira T Herbert, Timothy D Cook, Mea S |
author_sort |
Caissie, Beth |
title |
(Table 3) Age determination of sediment core HLY02-02-51 |
title_short |
(Table 3) Age determination of sediment core HLY02-02-51 |
title_full |
(Table 3) Age determination of sediment core HLY02-02-51 |
title_fullStr |
(Table 3) Age determination of sediment core HLY02-02-51 |
title_full_unstemmed |
(Table 3) Age determination of sediment core HLY02-02-51 |
title_sort |
(table 3) age determination of sediment core hly02-02-51 |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.831621 https://doi.org/10.1594/PANGAEA.831621 |
op_coverage |
LATITUDE: 54.553100 * LONGITUDE: -168.666900 * DATE/TIME START: 2002-07-03T00:00:00 * DATE/TIME END: 2002-07-03T00:00:00 * MINIMUM DEPTH, sediment/rock: 1.35 m * MAXIMUM DEPTH, sediment/rock: 6.65 m |
long_lat |
ENVELOPE(-168.666900,-168.666900,54.553100,54.553100) |
genre |
albedo Bering Sea Sea ice |
genre_facet |
albedo Bering Sea Sea ice |
op_source |
Supplement to: Caissie, Beth; Brigham-Grette, Julie; Lawrence, Kira T; Herbert, Timothy D; Cook, Mea S (2010): Last Glacial Maximum to Holocene sea surface conditions at Umnak Plateau, Bering Sea, as inferred from diatom, alkenone, and stable isotope records. Paleoceanography, 25(1), PA1206, https://doi.org/10.1029/2008PA001671 |
op_relation |
Hughen, Konrad A; Baillie, Mike G L; Bard, Edouard; Beck, J Warren; Bertrand, Chanda J H; Blackwell, Paul G; Buck, Caitlin E; Burr, George S; Cutler, Kirsten B; Damon, Paul E; Edwards, R Lawrence; Fairbanks, Richard G; Friedrich, Michael; Guilderson, Thomas P; Kromer, Bernd; McCormac, F Gerry; Manning, Sturt W; Ramsey, Christopher Bronk; Reimer, Paula J; Reimer, Ron W; Remmele, Sabine; Southon, John R; Stuiver, Minze; Talamo, Sahra; Taylor, Frederick W; van der Plicht, Johannes; Weyhenmeyer, Constanze E (2004): Marine04 marine radiocarbon age calibration, 0-26 cal kyr BP. Radiocarbon, 46(3), 1059-1086, https://doi.org/10.1017/S0033822200033002 https://doi.pangaea.de/10.1594/PANGAEA.831621 https://doi.org/10.1594/PANGAEA.831621 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.83162110.1029/2008PA00167110.1017/S0033822200033002 |
_version_ |
1810486632424407040 |