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Cisneros, Mercè Bermejo; Cacho, Isabel; Frigola, Jaime; Canals, Miquel; Masqué, Pere; Martrat, Belén; Casado, Marta; Grimalt, Joan O; Pena, Leopoldo D; Margaritelli, Giulia; Lirer, Fabrizio (2016): Sea surface temperature variability in the central-western Mediterranean Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.868778, Supplement to: Cisneros, MB et al. (2016): Sea surface temperature variability in the central-western Mediterranean Sea during the last 2700 years: a multi-proxy and multi-record approach. Climate of the Past, 12(4), 849-869, https://doi.org/10.5194/cp-12-849-2016

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Abstract:
This study presents the reconstructed evolution of sea surface conditions in the central-western Mediterranean Sea during the late Holocene (2700 years) from a set of multi-proxy records as measured on five short sediment cores from two sites north of Minorca (cores MINMC06 and HER-MC-MR3). Sea surface temperatures (SSTs) from alkenones and Globigerina bulloides Mg/Ca ratios are combined with d18O measurements in order to reconstruct changes in the regional evaporation-precipitation (E-P) balance. We also revisit the G. bulloides Mg/Ca-SST calibration and re-adjusted it based on a set of core-top measurements from the western Mediterranean Sea. Modern regional oceanographic data indicate that Globigerina bulloides Mg/Ca is mainly controlled by seasonal spring SST conditions, related to the April-May primary productivity bloom in the region. In contrast, the alkenone-SST signal represents an integration of the annual signal.
The construction of a robust chronological framework in the region allows for the synchronization of the different core sites and the construction of "stacked" proxy records in order to identify the most significant climatic variability patterns. The warmest sustained period occurred during the Roman Period (RP), which was immediately followed by a general cooling trend interrupted by several centennial-scale oscillations. We propose that this general cooling trend could be controlled by changes in the annual mean insolation. Even though some particularly warm SST intervals took place during the Medieval Climate Anomaly (MCA), the Little Ice Age (LIA) was markedly unstable, with some very cold SST events mostly during its second half. Finally, proxy records for the last centuries suggest that relatively low E-P ratios and cold SSTs dominated during negative North Atlantic Oscillation (NAO) phases, although SSTs seem to present a positive connection with the Atlantic Multidecadal Oscillation (AMO) index.
Coverage:
Median Latitude: 40.486705 * Median Longitude: 3.807209 * South-bound Latitude: 40.480000 * West-bound Longitude: 3.625860 * North-bound Latitude: 40.496200 * East-bound Longitude: 4.030200
Date/Time Start: 2006-08-19T00:00:00 * Date/Time End: 2009-10-04T18:50:54
Event(s):
Minorca_cores * Latitude: 40.480000 * Longitude: 3.820000 * Elevation: -2391.0 m * Location: Balearic Sea, Mediterranean Sea * Method/Device: Composite Core (COMPCORE) * Comment: Combined cores: MINMC06-1 and MINMC06-2 cruise HERMES 3 R/V Thethys II in August 2006 at latitude 40.48 and longitude 4.02, elevation -2391 m, recovery 31 and 32.5 cm, respectively. HER-MC-MR3.1, HER-MC-MR3.2, and HER-MC-MR3.3 cruise HERMESIONE R/V Hesperides in September 2009 at latitude 40.48 and longitude 3.62, elevation -2117 m, recovery 27 cm, 18 cm and 27 cm, respectively.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
22 datasets

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Datasets listed in this publication series

  1. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Stable oxygen isotope record of Globigerina bulloides of sediment core HER_MC_MR03_1a. https://doi.org/10.1594/PANGAEA.871120
  2. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Sea water stable oxygen isotope reconstruction of sediment core HER_MC_MR03_1a. https://doi.org/10.1594/PANGAEA.871125
  3. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Mg/Ca derived sea surface temperatures of sediment core HER_MC_MR03_1a. https://doi.org/10.1594/PANGAEA.871130
  4. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Stable oxygen isotope record of Globigerina bulloides of sediment core HER_MC_MR03_1b. https://doi.org/10.1594/PANGAEA.871121
  5. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Sea water stable oxygen isotope reconstruction of sediment core HER_MC_MR03_1b. https://doi.org/10.1594/PANGAEA.871126
  6. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Mg/Ca derived sea surface temperatures of sediment core HER_MC_MR03_1b. https://doi.org/10.1594/PANGAEA.871131
  7. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Stable oxygen isotope record of Globigerina bulloides of sediment core HER_MC_MR03_3. https://doi.org/10.1594/PANGAEA.871122
  8. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Sea water stable oxygen isotope reconstruction of sediment core HER_MC_MR03_3. https://doi.org/10.1594/PANGAEA.871127
  9. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Alkenone derived sea surface temperature reconstruction of sediment core HER_MC_MR03_3. https://doi.org/10.1594/PANGAEA.871139
  10. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Mg/Ca derived sea surface temperatures of sediment core HER_MC_MR03_3. https://doi.org/10.1594/PANGAEA.871132
  11. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Stable oxygen isotope record of Globigerina bulloides of sediment core MINMC06-1. https://doi.org/10.1594/PANGAEA.871123
  12. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Sea water stable oxygen isotope reconstruction of sediment core MINMC06-1. https://doi.org/10.1594/PANGAEA.871128
  13. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Alkenone derived sea surface temperature reconstruction of sediment core MINMC06-1. https://doi.org/10.1594/PANGAEA.871136
  14. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Mg/Ca derived sea surface temperatures of sediment core MINMC06-1. https://doi.org/10.1594/PANGAEA.871133
  15. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Stable oxygen isotope record of Globigerina bulloides of sediment core MINMC06-2. https://doi.org/10.1594/PANGAEA.871124
  16. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Sea water stable oxygen isotope reconstruction of sediment core MINMC06-2. https://doi.org/10.1594/PANGAEA.871129
  17. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Alkenone derived sea surface temperature reconstruction of sediment core MINMC06-2. https://doi.org/10.1594/PANGAEA.871137
  18. Cisneros, MB; Cacho, I; Frigola, J et al. (2017): Mg/Ca derived sea surface temperatures of sediment core MINMC06-2. https://doi.org/10.1594/PANGAEA.871134
  19. Cisneros, MB; Cacho, I; Frigola, J et al. (2016): d18 calcite anomaly stack of the last 2700 years. https://doi.org/10.1594/PANGAEA.868775
  20. Cisneros, MB; Cacho, I; Frigola, J et al. (2016): d18 water anomaly stack of the last 2700 years. https://doi.org/10.1594/PANGAEA.868776
  21. Cisneros, MB; Cacho, I; Frigola, J et al. (2016): Alkenone derived SST anomaly stack of the last 2700 years. https://doi.org/10.1594/PANGAEA.868777
  22. Cisneros, MB; Cacho, I; Frigola, J et al. (2016): Mg/Ca derived SST anomaly stack of the last 2700 years. https://doi.org/10.1594/PANGAEA.868774