Godad, Shital P; Naidu, Pothuri Divakar; Malmgren, Bjorn (2011): Sea surface temperture reconstruction and planktonic foraminifera of ODP Hole 117-723A [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.775099, Supplement to: Godad, SP et al. (2011): Sea surface temperature changes during May and August in the western Arabian Sea over the last 22 kyr: Implications as to shifting of the upwelling season. Marine Micropaleontology, 78(1-2), 25-29, https://doi.org/10.1016/j.marmicro.2010.09.006
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Published: 2011 (exact date unknown) • DOI registered: 2012-02-28
Abstract:
In the western Arabian Sea (WAS), the highest seasonal sea surface temperature (SST) difference presently occurs between May and August. In order to gain an understanding on how monsoonal upwelling modulates the SST difference between these two months, we have computed SST for the months of May and August based on census counts of planktonic foraminifers by using the artificial neural network (ANN) technique. The SST difference between May and August exhibits three distinct phases: i) a moderate SST difference in the late Holocene (0-3.5 ka) is attributable to intense upwelling during August, ii) a minimum SST difference from 4 to 12 ka is due to weak upwelling during the month of August, and iii) the highest SST difference during the last glacial interval (19 to 22 ka) with high Globigerina bulloides % could have been caused by the occurrence of a prolonged upwelling season (from May through July) and maximum difference in the incoming solar radiation between May and August. Overall, variations in the SST difference between May and August show that the timing of intense upwelling in the Western Arabian Sea over the last 22 kyr has been variable over the months of June, July and August.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 18.051800 * Longitude: 57.609000
Date/Time Start: 1987-09-15T11:45:00 * Date/Time End: 1987-09-17T04:30:00
Event(s):
117-723A * Latitude: 18.051800 * Longitude: 57.609000 * Date/Time Start: 1987-09-15T11:45:00 * Date/Time End: 1987-09-17T04:30:00 * Elevation: -806.0 m * Penetration: 432.3 m * Recovery: 298.29 m * Location: Arabian Sea * Campaign: Leg117 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 46 cores; 432.3 m cored; 0 m drilled; 69 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Godad, SP; Naidu, PD; Malmgren, B (2011): (Appendix A) Relative abundance of planktonic foraminifera in ODP Hole 117-723A. https://doi.org/10.1594/PANGAEA.775096
- Godad, SP; Naidu, PD; Malmgren, B (2011): (Appendix A) Sea surface temperture reconstruction for ODP Hole 117-723A. https://doi.org/10.1594/PANGAEA.775098