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Reichart, Gert-Jan; Lourens, Lucas Joost; Zachariasse, Willem-Jan (1998): Organic carbon content, stable isotopes and planktonic foraminifera in sediments of tghe norther Arabian Sea oxygen minimum zone [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.857398, Supplement to: Reichart, G-J et al. (1998): Temporal variability in the northern Arabian Sea oxygen minimum zone (OMZ) during the last 225,000 years. Paleoceanography, 13(6), 607-621, https://doi.org/10.1029/98PA02203

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Abstract:
The northern Arabian Sea is one of the few regions in the open ocean where thermocline water is severely depleted in oxygen. The intensity of this oxygen minimum zone (OMZ) has been reconstructed over the past 225,000 years using proxies for surface water productivity, water column denitrification, winter mixing, and the aragonite compensation depth (ACD). Changes in OMZ intensity occurred on orbital and suborbital timescales. Lowest O2 levels correlate with productivity maxima and shallow winter mixing. Precession-related productivity maxima lag early summer insolation maxima by ~6 kyr, which we attribute to a prolonged summer monsoon season related to higher insolation at the end of the summer. Periods with a weakened or even non-existent OMZ are characterized by low productivity conditions and deep winter mixing attributed to strong and cold winter monsoonal winds. The timing of deep winter mixing events corresponds with that of periods of climatic cooling in the North Atlantic region.
Related to:
Reichart, Gert-Jan; Lourens, Lucas Joost; Zachariasse, Willem-Jan (1998): NOAA/WDS Paleoclimatology - Arabian Sea Oxygen Minimum Zone(OMZ) during the last 225,000 year. NOAA National Centers for Environmental Information, https://doi.org/10.25921/VNVD-1X21
Project(s):
Netherlands Indian Ocean Programme (NIOP)
Coverage:
Median Latitude: 22.418811 * Median Longitude: 64.053097 * South-bound Latitude: 17.450000 * West-bound Longitude: 57.960000 * North-bound Latitude: 24.211670 * East-bound Longitude: 65.950000
Date/Time Start: 1992-10-05T00:00:00 * Date/Time End: 1992-11-08T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
7 datasets

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Datasets listed in this publication series

  1. Reichart, G-J; Lourens, LJ; Zachariasse, W-J (1998): Corg content and planktonic foraminifera of sediment core NIOP-C2_497-1. https://doi.org/10.1594/PANGAEA.857397
  2. Reichart, G-J; Lourens, LJ; Zachariasse, W-J (1998): Corg content and Sr/Ca ratios of sediment core NIOP-D2_453-1. https://doi.org/10.1594/PANGAEA.857391
  3. Reichart, G-J; Lourens, LJ; Zachariasse, W-J (1998): Corg content, Sr/Ca ratios and planktonic foraminifera of sediment core NIOP-D2_455-1. https://doi.org/10.1594/PANGAEA.857392
  4. Reichart, G-J; Lourens, LJ; Zachariasse, W-J (1998): Corg content of sediment core NIOP-D2_458-2. https://doi.org/10.1594/PANGAEA.857393
  5. Reichart, G-J; Lourens, LJ; Zachariasse, W-J (1998): Corg content, d15N ratios and planktonic foraminifera of sediment core NIOP-D2_464-1. https://doi.org/10.1594/PANGAEA.857394
  6. Reichart, G-J; Lourens, LJ; Zachariasse, W-J (1998): Corg content, Sr/Ca ratios and pteropoda of sediment core NIOP-D2_478-1. https://doi.org/10.1594/PANGAEA.857395
  7. Reichart, G-J; Lourens, LJ; Zachariasse, W-J (1998): Planktonic foraminifera of sediment core NIOP-D2_478-1. https://doi.org/10.1594/PANGAEA.857396