Mohtadi, Mahyar; Prange, Matthias; Schefuß, Enno; Jennerjahn, Tim C (2024): Temperatures and Mg/Ca ratios of sediment core SO189/2_039KL [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971801, In: Mohtadi, M et al. (2017): Hydroclimate proxy data from the eastern tropical Indian Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.877994
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Published: 2024-10-07 • DOI registered: 2024-11-05
Abstract:
Mg/Ca and Mg/Ca-derived SST and TWT estimates of sediment core SO189/2_039KL. For Mg/Ca analyses, samples were cleaned following a slightly modified protocol of Barker et al (2003). Mg/Ca ratios were measured with an Agilent Technologies 700 Series ICP-OES with a CETAX ASX-520 auto sample at the Faculty of Geosciences, University of Bremen. Mg/Ca ratios were converted to temperature using the multispecies Mg/Ca-temperature calibration of Anand et al. (2003; doi:10.1029/2002PA000846) for G. ruber and the species-specific Mg/Ca-temperature calibration of Anand et al. (2003; doi:10.1029/2002PA000846) for P. obliquiloculata.
Related to:
Mohtadi, Mahyar; Prange, Matthias; Oppo, Delia W; De Pol-Holz, Ricardo; Merkel, Ute; Zhang, Xiao; Steinke, Stephan; Lückge, Andreas (2014): North Atlantic forcing of tropical Indian Ocean climate. Nature, 509(7498), 76-80, https://doi.org/10.1038/nature13196
Further details:
Mohtadi, Mahyar; Prange, Matthias; Oppo, Delia W; De Pol-Holz, Ricardo; Merkel, Ute; Zhang, Xiao; Steinke, Stephan; Lückge, Andreas (2024): Hydroclimate records from the eastern tropical Indian Ocean of sediment core SO189-39KL [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971792
Mohtadi, Mahyar; Prange, Matthias; Schefuß, Enno; Jennerjahn, Tim C (2017): Late Holocene slowdown of the Indian Ocean Walker circulation. Nature Communications, 8(1), https://doi.org/10.1038/s41467-017-00855-3
Project(s):
Coverage:
Latitude: -0.790000 * Longitude: 99.908500
Date/Time Start: 2006-09-14T06:40:00 * Date/Time End: 2006-09-14T06:40:00
Minimum DEPTH, sediment/rock: 0.02 m * Maximum DEPTH, sediment/rock: 7.56 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Mohtadi, Mahyar | Geocode – merged | |
| 2 | AGE | Age | ka BP | Mohtadi, Mahyar | Geocode | |
| 3 | Globigerinoides ruber, Magnesium/Calcium ratio | G. ruber Mg/Ca | mmol/mol | Mohtadi, Mahyar | ||
| 4 | Sea surface temperature, annual mean | SST (1-12) | °C | Mohtadi, Mahyar | Calculated, according to Anand et al. (2003) | |
| 5 | Sea surface temperature, annual mean, standard deviation | SST (1-12) std dev | ± | Mohtadi, Mahyar | Calculated according to (Mohtadi et al. 2014) | 1Sigma error |
| 6 | Pulleniatina obliquiloculata, Magnesium/Calcium ratio | P. obliquiloculata Mg/Ca | mmol/mol | Mohtadi, Mahyar | ||
| 7 | Thermocline water temperature | TWT | °C | Mohtadi, Mahyar | Calculated, according to Anand et al. (2003) | |
| 8 | Thermocline temperature, standard deviation | TT std dev | ± | Mohtadi, Mahyar | Calculated according to (Mohtadi et al. 2014) | 1Sigma error |
| 9 | Temperature, difference | delta T | °C | Mohtadi, Mahyar |
Change history:
2024-08-16T09:47:43 – This is version 2 of the dataset, previous version doi:10.1594/PANGAEA.877991 contains errors due to data processing
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
693 data points
Data
| 1 Depth sed [m] | 2 Age [ka BP] | 3 G. ruber Mg/Ca [mmol/mol] | 4 SST (1-12) [°C] | 5 SST (1-12) std dev [±] | 6 P. obliquiloculata Mg/Ca [mmol/mol] | 7 TWT [°C] | 8 TT std dev [±] | 9 delta T [°C] |
|---|---|---|---|---|---|---|---|---|
| 0.02 | 0.41 | 5.76 | 30.2 | 1.0 | 3.01 | 24.6 | 1.0 | 5.60 |
| 0.04 | 0.44 | 5.18 | 29.0 | 1.0 | 2.89 | 24.2 | 1.0 | 4.83 |
| 0.06 | 0.46 | 5.12 | 28.9 | 1.0 | 3.03 | 24.7 | 1.0 | 4.20 |
| 0.08 | 0.49 | 5.55 | 29.8 | 1.0 | 2.85 | 24.0 | 1.0 | 5.80 |
| 0.10 | 0.51 | 5.26 | 29.2 | 1.0 | 3.13 | 25.1 | 1.0 | 4.11 |
| 0.12 | 0.54 | 5.05 | 28.8 | 1.0 | 3.12 | 25.0 | 1.0 | 3.75 |
| 0.14 | 0.58 | 5.50 | 29.7 | 1.0 | 3.01 | 24.6 | 1.0 | 5.10 |
| 0.16 | 0.63 | 5.67 | 30.0 | 1.0 | 3.08 | 24.9 | 1.0 | 5.12 |
| 0.18 | 0.68 | 5.34 | 29.4 | 1.0 | 3.24 | 25.5 | 1.0 | 3.87 |
| 0.20 | 0.72 | 5.40 | 29.5 | 1.0 | 3.25 | 25.5 | 1.0 | 3.99 |
| 0.22 | 0.77 | 6.27 | 31.1 | 1.1 | 2.98 | 24.5 | 1.0 | 6.64 |
| 0.24 | 0.81 | 5.82 | 30.3 | 1.0 | 2.93 | 24.3 | 1.0 | 6.02 |
| 0.26 | 0.87 | 5.59 | 29.9 | 1.0 | 3.21 | 25.4 | 1.0 | 4.48 |
| 0.28 | 0.92 | 5.56 | 29.8 | 1.0 | 3.12 | 25.0 | 1.0 | 4.81 |
| 0.30 | 0.97 | 5.42 | 29.5 | 1.0 | 3.14 | 25.1 | 1.0 | 4.44 |
| 0.32 | 1.02 | 5.87 | 30.4 | 1.0 | 3.16 | 25.2 | 1.0 | 5.21 |
| 0.34 | 1.08 | 5.61 | 29.9 | 1.0 | 3.19 | 25.3 | 1.0 | 4.62 |
| 0.36 | 1.13 | 5.66 | 30.0 | 1.0 | 3.07 | 24.9 | 1.0 | 5.11 |
| 0.38 | 1.18 | 5.43 | 29.6 | 1.0 | 3.25 | 25.5 | 1.0 | 4.06 |
| 0.40 | 1.24 | 5.55 | 29.8 | 1.0 | 3.13 | 25.1 | 1.0 | 4.69 |
| 0.42 | 1.29 | 5.42 | 29.5 | 1.0 | 3.31 | 25.7 | 1.0 | 3.83 |
| 0.44 | 1.34 | 5.59 | 29.9 | 1.0 | 3.09 | 24.9 | 1.0 | 4.97 |
| 0.46 | 1.39 | 5.47 | 29.6 | 1.0 | 3.27 | 25.6 | 1.0 | 4.04 |
| 0.48 | 1.45 | 5.38 | 29.4 | 1.0 | 3.08 | 24.9 | 1.0 | 4.54 |
| 0.50 | 1.50 | 5.65 | 30.0 | 1.0 | 3.01 | 24.6 | 1.0 | 5.39 |
| 0.52 | 1.56 | 5.32 | 29.3 | 1.0 | 2.94 | 24.4 | 1.0 | 4.93 |
| 0.54 | 1.61 | 5.43 | 29.6 | 1.0 | 3.20 | 25.3 | 1.0 | 4.25 |
| 0.56 | 1.66 | 5.34 | 29.4 | 1.0 | 2.99 | 24.6 | 1.0 | 4.76 |
| 0.58 | 1.72 | 5.52 | 29.7 | 1.0 | 3.46 | 26.2 | 1.0 | 3.53 |
| 0.64 | 1.83 | 5.34 | 29.4 | 1.0 | 2.95 | 24.4 | 1.0 | 4.96 |
| 0.66 | 1.88 | 5.35 | 29.4 | 1.0 | 3.51 | 26.3 | 1.0 | 3.09 |
| 0.68 | 1.94 | 5.54 | 29.8 | 1.0 | 3.19 | 25.3 | 1.0 | 4.47 |
| 0.70 | 1.97 | 5.46 | 29.6 | 1.0 | 3.14 | 25.1 | 1.0 | 4.50 |
| 0.72 | 2.01 | 5.62 | 29.9 | 1.0 | 3.04 | 24.7 | 1.0 | 5.23 |
| 0.74 | 2.04 | 5.58 | 29.9 | 1.0 | 3.11 | 25.0 | 1.0 | 4.86 |
| 0.76 | 2.07 | 5.88 | 30.4 | 1.0 | 3.27 | 25.5 | 1.0 | 4.94 |
| 0.78 | 2.11 | 5.51 | 29.7 | 1.0 | 3.11 | 25.0 | 1.0 | 4.72 |
| 0.80 | 2.14 | 5.47 | 29.6 | 1.0 | 3.47 | 26.2 | 1.0 | 3.43 |
| 0.82 | 2.18 | 5.59 | 29.9 | 1.0 | 3.10 | 25.0 | 1.0 | 4.87 |
| 0.84 | 2.21 | 5.34 | 29.4 | 1.0 | 3.28 | 25.6 | 1.0 | 3.76 |
| 0.86 | 2.25 | 5.83 | 30.4 | 1.0 | 3.17 | 25.2 | 1.0 | 5.15 |
| 0.88 | 2.28 | 5.55 | 29.8 | 1.0 | 3.07 | 24.8 | 1.0 | 4.99 |
| 0.90 | 2.34 | 5.61 | 29.9 | 1.0 | 3.20 | 25.3 | 1.0 | 4.61 |
| 0.92 | 2.39 | 5.29 | 29.3 | 1.0 | 3.23 | 25.4 | 1.0 | 3.87 |
| 0.94 | 2.45 | 5.52 | 29.7 | 1.0 | 3.23 | 25.4 | 1.0 | 4.33 |
| 0.96 | 2.50 | 5.72 | 30.1 | 1.0 | 3.18 | 25.2 | 1.0 | 4.92 |
| 0.98 | 2.56 | 6.04 | 30.7 | 1.1 | 2.97 | 24.5 | 1.0 | 6.23 |
| 1.00 | 2.62 | 5.93 | 30.5 | 1.0 | 3.05 | 24.8 | 1.0 | 5.73 |
| 1.02 | 2.68 | 5.22 | 29.1 | 1.0 | 3.01 | 24.6 | 1.0 | 4.51 |
| 1.04 | 2.73 | 5.38 | 29.4 | 1.0 | 3.15 | 25.1 | 1.0 | 4.34 |
| 1.06 | 2.79 | 5.21 | 29.1 | 1.0 | 2.91 | 24.2 | 1.0 | 4.88 |
| 1.08 | 2.85 | 5.52 | 29.7 | 1.0 | 3.03 | 24.7 | 1.0 | 5.04 |
| 1.10 | 2.90 | 5.76 | 30.2 | 1.0 | 3.03 | 24.7 | 1.0 | 5.51 |
| 1.12 | 2.95 | 5.26 | 29.2 | 1.0 | 3.19 | 25.3 | 1.0 | 3.91 |
| 6.52 | 19.00 | 4.32 | 27.0 | 1.0 | 3.04 | 24.8 | 1.0 | 2.21 |
| 6.54 | 19.08 | 4.39 | 27.2 | 1.0 | 3.09 | 24.9 | 1.0 | 2.30 |
| 6.56 | 19.16 | 4.42 | 27.3 | 1.0 | 3.20 | 25.3 | 1.0 | 1.96 |
| 6.58 | 19.24 | 4.00 | 26.2 | 0.9 | 2.95 | 24.4 | 0.9 | 1.76 |
| 6.60 | 19.32 | 4.05 | 26.3 | 0.9 | 3.05 | 24.8 | 0.9 | 1.48 |
| 6.62 | 19.40 | 4.02 | 26.2 | 0.9 | 3.10 | 25.0 | 0.9 | 1.22 |
| 6.64 | 19.48 | 4.17 | 26.6 | 0.9 | 3.13 | 25.1 | 0.9 | 1.50 |
| 6.66 | 19.55 | 3.90 | 25.9 | 0.9 | 3.09 | 24.9 | 0.9 | 0.98 |
| 6.68 | 19.63 | 4.09 | 26.4 | 0.9 | 3.12 | 25.0 | 0.9 | 1.39 |
| 6.70 | 19.71 | 3.98 | 26.1 | 0.9 | 3.08 | 24.9 | 0.9 | 1.19 |
| 6.72 | 19.79 | 3.92 | 25.9 | 0.9 | 3.09 | 24.9 | 0.9 | 1.04 |
| 6.74 | 19.87 | 3.98 | 26.1 | 0.9 | 3.03 | 24.7 | 0.9 | 1.38 |
| 6.76 | 19.95 | 4.17 | 26.6 | 0.9 | 3.23 | 25.4 | 0.9 | 1.22 |
| 6.78 | 20.02 | 3.86 | 25.8 | 0.9 | 3.08 | 24.9 | 0.9 | 0.86 |
| 6.80 | 20.10 | 3.96 | 26.0 | 0.9 | 3.11 | 25.0 | 0.9 | 1.04 |
| 6.82 | 20.18 | 4.08 | 26.4 | 0.9 | 3.04 | 24.7 | 0.9 | 1.68 |
| 6.84 | 20.26 | 3.94 | 26.0 | 0.9 | 3.00 | 24.6 | 0.9 | 1.38 |
| 6.86 | 20.34 | 4.17 | 26.6 | 0.9 | 3.05 | 24.8 | 0.9 | 1.83 |
| 6.90 | 20.49 | 4.01 | 26.2 | 0.9 | 3.24 | 25.4 | 0.9 | 0.80 |
| 6.92 | 20.57 | 4.34 | 27.1 | 0.9 | 3.19 | 25.3 | 1.0 | 1.76 |
| 6.94 | 20.65 | 4.15 | 26.6 | 1.0 | 3.19 | 25.3 | 0.9 | 1.26 |
| 6.96 | 20.73 | 4.05 | 26.3 | 0.9 | 2.91 | 24.3 | 0.9 | 2.00 |
| 6.98 | 20.81 | 4.28 | 26.9 | 0.9 | 2.89 | 24.2 | 1.0 | 2.70 |
| 7.00 | 20.88 | 3.91 | 25.9 | 1.0 | 3.58 | 26.6 | 0.9 | -0.70 |
| 7.02 | 20.95 | 4.00 | 26.2 | 0.9 | 3.25 | 25.5 | 0.9 | 0.67 |
| 7.04 | 21.02 | 4.25 | 26.8 | 0.9 | 2.98 | 24.5 | 1.0 | 2.33 |
| 7.06 | 21.09 | 4.19 | 26.7 | 1.0 | 3.15 | 25.1 | 0.9 | 1.58 |
| 7.08 | 21.16 | 4.07 | 26.3 | 0.9 | 3.00 | 24.6 | 0.9 | 1.74 |
| 7.10 | 21.23 | 4.45 | 27.3 | 0.9 | 3.11 | 25.0 | 1.0 | 2.34 |
| 7.12 | 21.31 | 4.29 | 26.9 | 1.0 | 3.02 | 24.7 | 1.0 | 2.24 |
| 7.14 | 21.38 | 4.28 | 26.9 | 1.0 | 2.87 | 24.1 | 1.0 | 2.81 |
| 7.16 | 21.45 | 4.30 | 27.0 | 1.0 | 3.13 | 25.1 | 1.0 | 1.86 |
| 7.18 | 21.52 | 4.51 | 27.5 | 1.0 | 2.89 | 24.2 | 1.0 | 3.29 |
| 7.20 | 21.57 | 4.09 | 26.4 | 1.0 | 3.32 | 25.7 | 0.9 | 0.70 |
| 7.36 | 22.00 | 3.94 | 26.0 | 0.9 | 3.06 | 24.8 | 0.9 | 1.18 |
| 7.38 | 22.06 | 3.88 | 25.8 | 1.0 | 3.04 | 24.7 | 0.9 | 1.13 |
| 7.40 | 22.16 | 3.86 | 25.8 | 1.0 | 3.11 | 25.0 | 0.9 | 0.76 |
| 7.42 | 22.26 | 3.88 | 25.8 | 0.9 | 3.19 | 25.3 | 0.9 | 0.53 |
| 7.44 | 22.36 | 4.03 | 26.2 | 0.9 | 3.13 | 25.1 | 0.9 | 1.13 |
| 7.46 | 22.46 | 4.06 | 26.3 | 0.9 | 3.11 | 25.0 | 0.9 | 1.33 |
| 7.48 | 22.56 | 4.08 | 26.4 | 0.9 | 3.16 | 25.2 | 0.9 | 1.19 |
| 7.50 | 22.66 | 4.21 | 26.7 | 0.9 | 3.00 | 24.6 | 0.9 | 2.13 |
| 7.52 | 22.77 | 3.85 | 25.7 | 0.9 | 2.84 | 24.0 | 0.9 | 1.72 |
| 7.54 | 22.87 | 4.26 | 26.9 | 0.9 | 3.02 | 24.7 | 1.0 | 2.15 |
| 7.56 | 22.97 | 3.71 | 25.3 | 0.9 | 2.92 | 24.3 | 0.9 | 1.01 |