Sedimentology of the Okhotsk Sea
On the basis of two sedimentary records from the central Sea of Okhotsk, we reconstruct the closely coupled glacial/interglacial changes in terrigenous flux, marine productivity, and sea ice coverage over the past 1.1 Myr. The correspondance of our sedimentary records to the China loess grain size r...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.742366 2023-05-15T17:52:38+02:00 Sedimentology of the Okhotsk Sea Nürnberg, Dirk Tiedemann, Ralf MEDIAN LATITUDE: 52.324785 * MEDIAN LONGITUDE: 150.705485 * SOUTH-BOUND LATITUDE: 51.714767 * WEST-BOUND LONGITUDE: 149.959000 * NORTH-BOUND LATITUDE: 53.951500 * EAST-BOUND LONGITUDE: 150.985417 * DATE/TIME START: 1998-08-22T10:33:00 * DATE/TIME END: 2001-06-07T13:52:00 2004-06-22 application/zip, 11 datasets https://doi.pangaea.de/10.1594/PANGAEA.742366 https://doi.org/10.1594/PANGAEA.742366 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.742366 https://doi.org/10.1594/PANGAEA.742366 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Nürnberg, Dirk; Tiedemann, Ralf (2004): Environmental change in the Sea of Okhotsk during the last 1.1 million years. Paleoceanography, 19(4), PA4011, https://doi.org/10.1029/2004PA001023 Akademik M.A. Lavrentiev GC Giant piston corer GPC Gravity corer IMAGES IMAGES VII - WEPAMA International Marine Global Change Study KOMEX KOMEX I Kurile-Okhotsk Sea Marine Experiment LV28 LV28-42-4 Marion Dufresne (1995) MD012415 MD01-2415 MD122 Sea of Ochotsk Sea of Okhotsk Dataset 2004 ftpangaea https://doi.org/10.1594/PANGAEA.742366 https://doi.org/10.1029/2004PA001023 2023-01-20T07:31:50Z On the basis of two sedimentary records from the central Sea of Okhotsk, we reconstruct the closely coupled glacial/interglacial changes in terrigenous flux, marine productivity, and sea ice coverage over the past 1.1 Myr. The correspondance of our sedimentary records to the China loess grain size record (China loess particle timescale, CHILOPARTS) suggests that environmental changes in both the Sea of Okhotsk area and in SE Asia were closely related via the Siberian atmospheric high-pressure cell. During full glacial times our records point to a strong Siberian High causing northerly wind directions, the extension of the sea ice cover, and a reduced Amur River discharge. Deglacial maxima of terrigenous flux were succeeded by or synchronous to high-productivity events. Marine productivity was strengthened during glacial terminations because of an effective nutrient utilization at times of enhanced water column stratification and high nutrient supply from fluvial runoff and sea ice thawing. During interglacials, SE monsoonal winds prevailed, analogous to today's summer situation of a pronounced Mongolian Heat Low and a strong Hawaiian High. Strong freshwater discharge induced by high precipitation rates in the Amur drainage area and a seasonally reduced and mobile sea ice cover favored marine productivity (although being considerably lower than during the terminations) and a lowered flux of ice-rafted detritus. Dataset okhotsk sea Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Okhotsk ENVELOPE(149.959000,150.985417,53.951500,51.714767) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Akademik M.A. Lavrentiev GC Giant piston corer GPC Gravity corer IMAGES IMAGES VII - WEPAMA International Marine Global Change Study KOMEX KOMEX I Kurile-Okhotsk Sea Marine Experiment LV28 LV28-42-4 Marion Dufresne (1995) MD012415 MD01-2415 MD122 Sea of Ochotsk Sea of Okhotsk |
spellingShingle |
Akademik M.A. Lavrentiev GC Giant piston corer GPC Gravity corer IMAGES IMAGES VII - WEPAMA International Marine Global Change Study KOMEX KOMEX I Kurile-Okhotsk Sea Marine Experiment LV28 LV28-42-4 Marion Dufresne (1995) MD012415 MD01-2415 MD122 Sea of Ochotsk Sea of Okhotsk Nürnberg, Dirk Tiedemann, Ralf Sedimentology of the Okhotsk Sea |
topic_facet |
Akademik M.A. Lavrentiev GC Giant piston corer GPC Gravity corer IMAGES IMAGES VII - WEPAMA International Marine Global Change Study KOMEX KOMEX I Kurile-Okhotsk Sea Marine Experiment LV28 LV28-42-4 Marion Dufresne (1995) MD012415 MD01-2415 MD122 Sea of Ochotsk Sea of Okhotsk |
description |
On the basis of two sedimentary records from the central Sea of Okhotsk, we reconstruct the closely coupled glacial/interglacial changes in terrigenous flux, marine productivity, and sea ice coverage over the past 1.1 Myr. The correspondance of our sedimentary records to the China loess grain size record (China loess particle timescale, CHILOPARTS) suggests that environmental changes in both the Sea of Okhotsk area and in SE Asia were closely related via the Siberian atmospheric high-pressure cell. During full glacial times our records point to a strong Siberian High causing northerly wind directions, the extension of the sea ice cover, and a reduced Amur River discharge. Deglacial maxima of terrigenous flux were succeeded by or synchronous to high-productivity events. Marine productivity was strengthened during glacial terminations because of an effective nutrient utilization at times of enhanced water column stratification and high nutrient supply from fluvial runoff and sea ice thawing. During interglacials, SE monsoonal winds prevailed, analogous to today's summer situation of a pronounced Mongolian Heat Low and a strong Hawaiian High. Strong freshwater discharge induced by high precipitation rates in the Amur drainage area and a seasonally reduced and mobile sea ice cover favored marine productivity (although being considerably lower than during the terminations) and a lowered flux of ice-rafted detritus. |
format |
Dataset |
author |
Nürnberg, Dirk Tiedemann, Ralf |
author_facet |
Nürnberg, Dirk Tiedemann, Ralf |
author_sort |
Nürnberg, Dirk |
title |
Sedimentology of the Okhotsk Sea |
title_short |
Sedimentology of the Okhotsk Sea |
title_full |
Sedimentology of the Okhotsk Sea |
title_fullStr |
Sedimentology of the Okhotsk Sea |
title_full_unstemmed |
Sedimentology of the Okhotsk Sea |
title_sort |
sedimentology of the okhotsk sea |
publisher |
PANGAEA |
publishDate |
2004 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.742366 https://doi.org/10.1594/PANGAEA.742366 |
op_coverage |
MEDIAN LATITUDE: 52.324785 * MEDIAN LONGITUDE: 150.705485 * SOUTH-BOUND LATITUDE: 51.714767 * WEST-BOUND LONGITUDE: 149.959000 * NORTH-BOUND LATITUDE: 53.951500 * EAST-BOUND LONGITUDE: 150.985417 * DATE/TIME START: 1998-08-22T10:33:00 * DATE/TIME END: 2001-06-07T13:52:00 |
long_lat |
ENVELOPE(149.959000,150.985417,53.951500,51.714767) |
geographic |
Okhotsk |
geographic_facet |
Okhotsk |
genre |
okhotsk sea Sea ice |
genre_facet |
okhotsk sea Sea ice |
op_source |
Supplement to: Nürnberg, Dirk; Tiedemann, Ralf (2004): Environmental change in the Sea of Okhotsk during the last 1.1 million years. Paleoceanography, 19(4), PA4011, https://doi.org/10.1029/2004PA001023 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.742366 https://doi.org/10.1594/PANGAEA.742366 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.742366 https://doi.org/10.1029/2004PA001023 |
_version_ |
1766160323303178240 |