Proxy and simulation data for marine sediment core MD01-2414 from the central Okhotsk Sea
Recent reduction in high-latitude sea ice extent demonstrates that sea ice is highly sensitive to external and internal radiative forcings. In order to better understand sea ice system responses to external orbital forcing and internal oscillations on orbital timescales, here we reconstruct changes...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.886808 2024-04-21T08:09:50+00:00 Proxy and simulation data for marine sediment core MD01-2414 from the central Okhotsk Sea Lo, Li Belt, Simon T Lattaud, Julie Friedrich, Tobias Zeeden, Christian Schouten, Stefan Smik, Lukas Timmermann, Axel Cabedo-Sanz, Patricia Huang, Jyh-Jaan Zhou, Liping Ou, Tsong-Hua Chang, Yuan-Pin Wang, Liang-Chi Chou, Yu-Min Shen, Chuan-Chou Chen, Min-Te Wei, Kuo-Yen Song, Sheng-Rong Fang, Tien-Hsi Gorbarenko, Sergey A Wang, Wei-Lung Lee, Teh-Quei Elderfield, Henry Hodell, David A LATITUDE: 53.196200 * LONGITUDE: 149.580000 * DATE/TIME START: 2001-06-07T04:01:00 * DATE/TIME END: 2001-06-07T04:01:00 2018 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.886808 https://doi.org/10.1594/PANGAEA.886808 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.886808 https://doi.org/10.1594/PANGAEA.886808 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Lo, Li; Belt, Simon T; Lattaud, Julie; Friedrich, Tobias; Zeeden, Christian; Schouten, Stefan; Smik, Lukas; Timmermann, Axel; Cabedo-Sanz, Patricia; Huang, Jyh-Jaan; Zhou, Liping; Ou, Tsong-Hua; Chang, Yuan-Pin; Wang, Liang-Chi; Chou, Yu-Min; Shen, Chuan-Chou; Chen, Min-Te; Wei, Kuo-Yen; Song, Sheng-Rong; Fang, Tien-Hsi; Gorbarenko, Sergey A; Wang, Wei-Lung; Lee, Teh-Quei; Elderfield, Henry; Hodell, David A (2018): Precession and atmospheric CO 2 modulated variability of sea ice in the central Okhotsk Sea since 130,000 years ago. Earth and Planetary Science Letters, 488, 36-45, https://doi.org/10.1016/j.epsl.2018.02.005 Giant piston corer GPC IMAGES VII - WEPAMA Marion Dufresne (1995) MD012414 MD01-2414 MD122 Sea of Ochotsk Dataset 2018 ftpangaea https://doi.org/10.1594/PANGAEA.88680810.1016/j.epsl.2018.02.005 2024-03-27T15:15:35Z Recent reduction in high-latitude sea ice extent demonstrates that sea ice is highly sensitive to external and internal radiative forcings. In order to better understand sea ice system responses to external orbital forcing and internal oscillations on orbital timescales, here we reconstruct changes in sea ice extent and summer sea surface temperature (SSST) over the past 130,000 yrs in the central Okhotsk Sea. We applied novel organic geochemical proxies of sea ice (IP25), SSST (TEXL86) and open water marine productivity (a tri-unsaturated highly branched isoprenoid and biogenic opal) to marine sediment core MD01-2414 (53°11.77'N, 149°34.80'E, water depth 1123 m). To complement the proxy data, we also carried out transient Earth system model simulations and sensitivity tests to identify contributions of different climatic forcing factors. Our results show that the central Okhotsk Sea was ice-free during Marine Isotope Stage (MIS) 5e and the early-mid Holocene, but experienced variable sea ice cover during MIS 2-4, consistent with intervals of relatively high and low SSST, respectively. Our data also show that the sea ice extent was governed by precession-dominated insolation changes during intervals of atmospheric CO2 concentrations ranging from 190 to 260 ppm. However, the proxy record and the model simulation data show that the central Okhotsk Sea was near ice-free regardless of insolation forcing throughout the penultimate interglacial, and during the Holocene, when atmospheric CO2 was above ~260 ppm. Past sea ice conditions in the central Okhotsk Sea were therefore strongly modulated by both orbital-driven insolation and CO2-induced radiative forcing during the past glacial/interglacial cycle. Dataset okhotsk sea Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(149.580000,149.580000,53.196200,53.196200) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Giant piston corer GPC IMAGES VII - WEPAMA Marion Dufresne (1995) MD012414 MD01-2414 MD122 Sea of Ochotsk |
spellingShingle |
Giant piston corer GPC IMAGES VII - WEPAMA Marion Dufresne (1995) MD012414 MD01-2414 MD122 Sea of Ochotsk Lo, Li Belt, Simon T Lattaud, Julie Friedrich, Tobias Zeeden, Christian Schouten, Stefan Smik, Lukas Timmermann, Axel Cabedo-Sanz, Patricia Huang, Jyh-Jaan Zhou, Liping Ou, Tsong-Hua Chang, Yuan-Pin Wang, Liang-Chi Chou, Yu-Min Shen, Chuan-Chou Chen, Min-Te Wei, Kuo-Yen Song, Sheng-Rong Fang, Tien-Hsi Gorbarenko, Sergey A Wang, Wei-Lung Lee, Teh-Quei Elderfield, Henry Hodell, David A Proxy and simulation data for marine sediment core MD01-2414 from the central Okhotsk Sea |
topic_facet |
Giant piston corer GPC IMAGES VII - WEPAMA Marion Dufresne (1995) MD012414 MD01-2414 MD122 Sea of Ochotsk |
description |
Recent reduction in high-latitude sea ice extent demonstrates that sea ice is highly sensitive to external and internal radiative forcings. In order to better understand sea ice system responses to external orbital forcing and internal oscillations on orbital timescales, here we reconstruct changes in sea ice extent and summer sea surface temperature (SSST) over the past 130,000 yrs in the central Okhotsk Sea. We applied novel organic geochemical proxies of sea ice (IP25), SSST (TEXL86) and open water marine productivity (a tri-unsaturated highly branched isoprenoid and biogenic opal) to marine sediment core MD01-2414 (53°11.77'N, 149°34.80'E, water depth 1123 m). To complement the proxy data, we also carried out transient Earth system model simulations and sensitivity tests to identify contributions of different climatic forcing factors. Our results show that the central Okhotsk Sea was ice-free during Marine Isotope Stage (MIS) 5e and the early-mid Holocene, but experienced variable sea ice cover during MIS 2-4, consistent with intervals of relatively high and low SSST, respectively. Our data also show that the sea ice extent was governed by precession-dominated insolation changes during intervals of atmospheric CO2 concentrations ranging from 190 to 260 ppm. However, the proxy record and the model simulation data show that the central Okhotsk Sea was near ice-free regardless of insolation forcing throughout the penultimate interglacial, and during the Holocene, when atmospheric CO2 was above ~260 ppm. Past sea ice conditions in the central Okhotsk Sea were therefore strongly modulated by both orbital-driven insolation and CO2-induced radiative forcing during the past glacial/interglacial cycle. |
format |
Dataset |
author |
Lo, Li Belt, Simon T Lattaud, Julie Friedrich, Tobias Zeeden, Christian Schouten, Stefan Smik, Lukas Timmermann, Axel Cabedo-Sanz, Patricia Huang, Jyh-Jaan Zhou, Liping Ou, Tsong-Hua Chang, Yuan-Pin Wang, Liang-Chi Chou, Yu-Min Shen, Chuan-Chou Chen, Min-Te Wei, Kuo-Yen Song, Sheng-Rong Fang, Tien-Hsi Gorbarenko, Sergey A Wang, Wei-Lung Lee, Teh-Quei Elderfield, Henry Hodell, David A |
author_facet |
Lo, Li Belt, Simon T Lattaud, Julie Friedrich, Tobias Zeeden, Christian Schouten, Stefan Smik, Lukas Timmermann, Axel Cabedo-Sanz, Patricia Huang, Jyh-Jaan Zhou, Liping Ou, Tsong-Hua Chang, Yuan-Pin Wang, Liang-Chi Chou, Yu-Min Shen, Chuan-Chou Chen, Min-Te Wei, Kuo-Yen Song, Sheng-Rong Fang, Tien-Hsi Gorbarenko, Sergey A Wang, Wei-Lung Lee, Teh-Quei Elderfield, Henry Hodell, David A |
author_sort |
Lo, Li |
title |
Proxy and simulation data for marine sediment core MD01-2414 from the central Okhotsk Sea |
title_short |
Proxy and simulation data for marine sediment core MD01-2414 from the central Okhotsk Sea |
title_full |
Proxy and simulation data for marine sediment core MD01-2414 from the central Okhotsk Sea |
title_fullStr |
Proxy and simulation data for marine sediment core MD01-2414 from the central Okhotsk Sea |
title_full_unstemmed |
Proxy and simulation data for marine sediment core MD01-2414 from the central Okhotsk Sea |
title_sort |
proxy and simulation data for marine sediment core md01-2414 from the central okhotsk sea |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.886808 https://doi.org/10.1594/PANGAEA.886808 |
op_coverage |
LATITUDE: 53.196200 * LONGITUDE: 149.580000 * DATE/TIME START: 2001-06-07T04:01:00 * DATE/TIME END: 2001-06-07T04:01:00 |
long_lat |
ENVELOPE(149.580000,149.580000,53.196200,53.196200) |
genre |
okhotsk sea Sea ice |
genre_facet |
okhotsk sea Sea ice |
op_source |
Supplement to: Lo, Li; Belt, Simon T; Lattaud, Julie; Friedrich, Tobias; Zeeden, Christian; Schouten, Stefan; Smik, Lukas; Timmermann, Axel; Cabedo-Sanz, Patricia; Huang, Jyh-Jaan; Zhou, Liping; Ou, Tsong-Hua; Chang, Yuan-Pin; Wang, Liang-Chi; Chou, Yu-Min; Shen, Chuan-Chou; Chen, Min-Te; Wei, Kuo-Yen; Song, Sheng-Rong; Fang, Tien-Hsi; Gorbarenko, Sergey A; Wang, Wei-Lung; Lee, Teh-Quei; Elderfield, Henry; Hodell, David A (2018): Precession and atmospheric CO 2 modulated variability of sea ice in the central Okhotsk Sea since 130,000 years ago. Earth and Planetary Science Letters, 488, 36-45, https://doi.org/10.1016/j.epsl.2018.02.005 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.886808 https://doi.org/10.1594/PANGAEA.886808 |
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.88680810.1016/j.epsl.2018.02.005 |
_version_ |
1796951070261379072 |