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Other research product . Collection . 2020

Cenozoic global reference benthic carbon and oxygen isotope dataset (CENOGRID)

Westerhold, Thomas;
Open Access
English
Published: 01 Jan 2020
Publisher: PANGAEA - Data Publisher for Earth & Environmental Science
Abstract

Much of our understanding of Earth's past climate states comes from the measurement of oxygen and carbon isotope variations in deep-sea benthic foraminifera. Yet, major intervals in those records that lack the temporal resolution and/or age control required to identify climate forcing and feedback mechanisms. Here we document 66 million years of global climate by a new high-fidelity Cenozoic global reference benthic carbon and oxygen isotope dataset (CENOGRID). Using recurrence analysis, we find that on timescales of millions of years Earth's climate can be grouped into Hothouse, Warmhouse, Coolhouse and Icehouse states separated by transitions related to changing greenhouse gas levels and the growth of polar ice sheets. Each Cenozoic climate state is paced by orbital cycles, but the response to radiative forcing is state dependent.

Subjects

Cenozoic Climate, Ocean Drilling, Ocean Drilling Program (ODP)

Funded by
EC| EARTHSEQUENCING
Project
EARTHSEQUENCING
A new approach to sequence Earth history at high resolution over the past 66 million years
  • Funder: European Commission (EC)
  • Project Code: 617462
  • Funding stream: FP7 | SP2 | ERC
,
EC| TiPES
Project
TiPES
Tipping Points in the Earth System
  • Funder: European Commission (EC)
  • Project Code: 820970
  • Funding stream: H2020 | RIA
Validated by funder
,
EC| MIONIÑO
Project
MIONIÑO
Resolving the debate on a permanent El Niño-like state in the late Miocene: establishing equatorial Pacific conditions, driving forces and global impacts.
  • Funder: European Commission (EC)
  • Project Code: 796220
  • Funding stream: H2020 | MSCA-IF-EF-ST
Related to Research communities
European Marine Science
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