J 2024

Rethinking the Holocene temperature conundrum

ESSELL, Helen, Jan ESPER, Heinz WANNER and Ulf BÜNTGEN

Basic information

Original name

Rethinking the Holocene temperature conundrum

Authors

ESSELL, Helen, Jan ESPER, Heinz WANNER and Ulf BÜNTGEN (276 Germany, guarantor, belonging to the institution)

Edition

Climate Research, Inter-Research, 2024, 0936-577X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10509 Meteorology and atmospheric sciences

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 1.100 in 2022

Organization unit

Faculty of Science

UT WoS

001204492800001

Keywords in English

Holocene climates; Temperature reconstructions; Proxy archives; Model simulations; Orbital forcing; Paleoclimate research

Tags

Tags

International impact, Reviewed
Změněno: 3/5/2024 12:54, Mgr. Marie Šípková, DiS.

Abstract

V originále

Recent scholarship argues for more research to resolve the 'Holocene temperature conundrum', an apparent discrepancy between decreasing proxy-reconstructed and increasing model-simulated long-term temperature trends during the late Holocene. Here, we argue that the observed proxy-model offset likely results from inappropriate comparisons of different seasonal and spatial signals in the reconstructed and simulated palaeo-data. Since proxy archives have been used to reconstruct global annual mean temperatures, they have been compared against model simulations of the same seasonal and spatial domains. However, we suggest that most of the proxy-based large-scale reconstructions are biased towards Northern Hemisphere summer temperatures, and as such model comparisons have predominantly focused on the wrong target data. Further to advancing our understanding of long-term temperature trends, we recommend prioritising the refinement of proxy networks and climate reconstructions to preserve the full spectrum of naturally forced, interannual to multi-millennial variations needed to contextualise recent anthropogenic changes against past Holocene ranges.