MIS 5e Southern Ocean September sea-ice concentrations and summer sea-surface temperatures reconstructed from marine sediment cores using a MAT diatom transfer function ...

Marine Isotope Stage (MIS) 5e is the latest period when global atmospheric temperatures were warmer than present and global sea levels were higher than present. Environmental conditions during MIS 5e therefore represent an important 'process analogue' for understanding the climatic mechani...

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Bibliographic Details
Main Authors: Chadwick, Matthew, Allen, Claire Susannah, Crosta, Xavier
Format: Dataset
Language:English
Published: PANGAEA 2021
Subjects:
Diatom assemblage
Last Interglacial
modern analogue technique
sea ice concentration
Sea surface temperature
Sediment cores
Southern Ocean
transfer function
Event label
Latitude of event
Longitude of event
Elevation of event
DEPTH, sediment/rock
AGE
Sea ice concentration, September
Sea surface temperature, summer
Reference/source
Drilling/drill rig
Gravity corer
Piston corer
Calypso Corer
Composite Core
Age model, EDC3 EPICA Ice Dome C, Parrenin et al., 2007
Age model according to Lisiecki & Raymo 2005 [LR04]
Modern analog technique MAT
Exp318
ELT17
JR20080221
MD130
NBP9802
Joides Resolution
Eltanin
James Clark Ross
Marion Dufresne 1995
Nathaniel B. Palmer
EPICA
Sea ice
Online Access:https://dx.doi.org/10.1594/pangaea.936573
https://doi.pangaea.de/10.1594/PANGAEA.936573
Description
Summary:Marine Isotope Stage (MIS) 5e is the latest period when global atmospheric temperatures were warmer than present and global sea levels were higher than present. Environmental conditions during MIS 5e therefore represent an important 'process analogue' for understanding the climatic mechanisms and responses active under future anthropogenic warming. MIS 5e diatom assemblages were reconstructed for nine Southern Ocean marine sediment cores (ANTA91-8, ELT17-9, MD03-2603, NBP9802-04, PC509, TPC287, TPC288, TPC290 & U1361A). A modern analog technique (MAT) transfer function (Crosta et al. 1998) was applied to the diatom assemblages to reconstruct the MIS 5e September sea-ice concentration (SIC) and summer (January – March) sea-surface temperature (SSST) for each sample. The MAT compares the relative abundances of 33 diatom species in each MIS 5e sample to the abundances of the same species in a modern reference dataset composed of 257 surface sediment samples (modern analogs) from the SO. Modern conditions ...

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