Turney, Chris S M; Jones, Richard; McKay, Nicholas; Van Sebille, Erik; Thomas, Zoë; Hillenbrand, Claus-Dieter; Fogwill, Christopher (2019): A global reconstruction of sea-surface temperatures for the Last Interglacial (129-116 kyr). PANGAEA, https://doi.org/10.1594/PANGAEA.904381, Supplement to: Turney, CSM et al. (in review): A global mean sea-surface temperature dataset for the Last Interglacial (129–116 kyr) and contribution of thermal expansion to sea-level change. Earth System Science Data Discussions, https://doi.org/10.5194/essd-2019-249
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A valuable analogue for assessing Earth's sensitivity to warming is the Last Interglacial (LIG; 129-116 kyr), when global temperatures and mean sea level were higher than today. We report here a global network of LIG sea-surface temperatures (SST) obtained from various published temperature proxies (e.g. faunal/floral plankton assemblages, Mg/Ca ratios of calcareous organisms, and alkenone UK'37). Each reconstruction is averaged across the LIG (anomalies relative to 1981-2010), corrected for ocean drift and with varying seasonality (189 annual, 99 December-February, and 92 June-August). Because of local δ18O seawater changes, uncertainty in the age models of marine cores, and differences in sampling resolution and/or sedimentation rates, we do not attempt to resolve changes within the LIG. Therefore, and to avoid bias towards individual LIG SSTs based on only a single (and potentially erroneous) measurement or a single interpolated data point, we report temperatures averaged across the entire LIG. The global dataset provides a remarkably coherent pattern of higher SST increases at polar latitudes than in the tropics, with comparable estimates between different SST proxies.
Median Latitude: -2.638557 * Median Longitude: 162.093662 * South-bound Latitude: -61.240000 * West-bound Longitude: 8.580000 * North-bound Latitude: 72.180000 * East-bound Longitude: -4.657980
Date/Time Start: 1957-07-29T00:00:00 * Date/Time End: 2009-11-29T20:23:00
Please see "other version" for Summary annual SST estimates from the LIG (global and laititudinal averages).
Datasets listed in this publication series
- Turney, CSM; Jones, R; McKay, N et al. (2019): Annual SST estimates for the Last Interglacial (129-116 ka BP). https://doi.org/10.1594/PANGAEA.904375
- Turney, CSM; Jones, R; McKay, N et al. (2020): Annual SST estimates from the late Marine Isotope Stage 6 (140-135 kyr) and comparison to the early LIG. https://doi.org/10.1594/PANGAEA.924791
- Turney, CSM; Jones, R; McKay, N et al. (2020): Maximum annual SST estimates during the early LIG (129-124 ka; 189 sites). https://doi.org/10.1594/PANGAEA.911116
- Turney, CSM; Jones, R; McKay, N et al. (2019): SST estimates for the Last Interglacial (129-116 ka BP) during the months of December, January and February. https://doi.org/10.1594/PANGAEA.904378
- Turney, CSM; Jones, R; McKay, N et al. (2019): SST estimates for the Last Interglacial (129-116 ka BP) during the months of June, July and August. https://doi.org/10.1594/PANGAEA.904380