Multidecadal variations in the early Holocene outflow of Red Sea Water into the Arabian Sea

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

We present Holocene stable oxygen isotope data from the deep Arabian Sea off Somalia at a decadal time resolution as a proxy for the history of intermediate/upper deep water. These data show an overall δ18O reduction by 0.5‰ between 10 and ~6.5 kyr B.P. superimposed upon short-term δ18O variations at a decadal-centennial timescale. The amplitude of the decadal variations is 0.3‰ prior, and up to 0.6‰ subsequent, to ~8.1 kyr B.P. We conclude from modeling experiments that the short-term δ18O variations between 10 and ~6.5 kyr B.P. most likely document changes in the evaporation-precipitation balance in the central Red Sea. Changes in water temperature and salinity cause the outflowing Red Sea Water to settle roughly 800 m deeper than today.
Original languageEnglish
Pages (from-to)658-668
JournalPaleoceanography
Volume16
DOIs
Publication statusPublished - 2001

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outflow
Holocene
seawater
decadal variation
oxygen isotope
stable isotope
water temperature
deep water
evaporation
timescale
history
modeling
experiment
sea
water salinity
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Cite this

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title = "Multidecadal variations in the early Holocene outflow of Red Sea Water into the Arabian Sea",
abstract = "We present Holocene stable oxygen isotope data from the deep Arabian Sea off Somalia at a decadal time resolution as a proxy for the history of intermediate/upper deep water. These data show an overall δ18O reduction by 0.5‰ between 10 and ~6.5 kyr B.P. superimposed upon short-term δ18O variations at a decadal-centennial timescale. The amplitude of the decadal variations is 0.3‰ prior, and up to 0.6‰ subsequent, to ~8.1 kyr B.P. We conclude from modeling experiments that the short-term δ18O variations between 10 and ~6.5 kyr B.P. most likely document changes in the evaporation-precipitation balance in the central Red Sea. Changes in water temperature and salinity cause the outflowing Red Sea Water to settle roughly 800 m deeper than today.",
author = "S.J.A. Jung and G.M. Ganssen and G.R. Davies",
year = "2001",
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language = "English",
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pages = "658--668",
journal = "Paleoceanography",
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Multidecadal variations in the early Holocene outflow of Red Sea Water into the Arabian Sea. / Jung, S.J.A.; Ganssen, G.M.; Davies, G.R.

In: Paleoceanography, Vol. 16, 2001, p. 658-668.

Research output: Contribution to JournalArticleAcademicpeer-review

TY - JOUR

T1 - Multidecadal variations in the early Holocene outflow of Red Sea Water into the Arabian Sea

AU - Jung, S.J.A.

AU - Ganssen, G.M.

AU - Davies, G.R.

PY - 2001

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N2 - We present Holocene stable oxygen isotope data from the deep Arabian Sea off Somalia at a decadal time resolution as a proxy for the history of intermediate/upper deep water. These data show an overall δ18O reduction by 0.5‰ between 10 and ~6.5 kyr B.P. superimposed upon short-term δ18O variations at a decadal-centennial timescale. The amplitude of the decadal variations is 0.3‰ prior, and up to 0.6‰ subsequent, to ~8.1 kyr B.P. We conclude from modeling experiments that the short-term δ18O variations between 10 and ~6.5 kyr B.P. most likely document changes in the evaporation-precipitation balance in the central Red Sea. Changes in water temperature and salinity cause the outflowing Red Sea Water to settle roughly 800 m deeper than today.

AB - We present Holocene stable oxygen isotope data from the deep Arabian Sea off Somalia at a decadal time resolution as a proxy for the history of intermediate/upper deep water. These data show an overall δ18O reduction by 0.5‰ between 10 and ~6.5 kyr B.P. superimposed upon short-term δ18O variations at a decadal-centennial timescale. The amplitude of the decadal variations is 0.3‰ prior, and up to 0.6‰ subsequent, to ~8.1 kyr B.P. We conclude from modeling experiments that the short-term δ18O variations between 10 and ~6.5 kyr B.P. most likely document changes in the evaporation-precipitation balance in the central Red Sea. Changes in water temperature and salinity cause the outflowing Red Sea Water to settle roughly 800 m deeper than today.

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DO - 10.1029/2000PA000592

M3 - Article

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