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Published: Monday, 27 April 2020 13:47
PAGES' 2k Network data have been used in a new Climate of the Past paper by Christoph Dätwyler et al. "Teleconnections and relationship between the El Niño–Southern Oscillation (ENSO) and the Southern Annular Mode (SAM) in reconstructions and models over the past millennium".
The climate of the Southern Hemisphere (SH) is strongly influenced by ENSO and SAM variations. Because of the limited length of instrumental records in most parts of the SH, very little is known about the relationship between these two key modes of variability over time.
Using proxy-based reconstructions and last-millennium climate model simulations, authors find that ENSO and SAM indices are mostly negatively correlated over the past millennium. Pseudo-proxy experiments indicate that currently available proxy records are able to reliably capture ENSO–SAM relationships back to at least 1600 CE.
Access the paper here.
Find out more about the 2k Network here and access the database used here.
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Published: Thursday, 16 April 2020 09:14
In the new Scientific Data paper "A global database of Holocene paleotemperature records" by Darrell Kaufman et al., authors present a global compilation of quality-controlled, published, temperature-sensitive proxy records extending back 12,000 years through the Holocene.
This database helps place recent warming into the longer-term context of natural climate variability.
Data were compiled from 679 sites where time series cover at least 4000 years and derive from lake sediment (51%), marine sediment (31%), peat (11%), glacier ice (3%), and other natural archives.
The database contains 1319 records, including 157 from the Southern Hemisphere.
PAGES provided additional support for workshops leading up to this data product.
Access the paper here.
PAGES' former working group Dust Impact on Climate and Environment (DICE) has released the special issue "Holocene Dust Dynamics" in The Holocene.
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