Last Interglacial Hydroclimate Seasonality Reconstructed From Tropical Atlantic Corals

Publication type:
Journal article
Metadata:
Autoren
  • William M Brocas
  • Thomas Felis
  • Paul Gierz
  • Gerrit Lohmann
  • Martin Werner
  • J Christina Obert
  • Denis Scholz
  • Martin Koelling
  • Sander R Scheffers
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000428070000005&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1002/2017PA003216
eISSN
2572-4525
Externe Identifier
  • Clarivate Analytics Document Solution ID: GA1IX
ISSN
2572-4517
Ausgabe der Veröffentlichung
2
Zeitschrift
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
Schlüsselwörter
  • last interglacial
  • tropical Atlantic climate
  • hydroclimate seasonality
  • coral seawater O-18 seasonality
  • Intertropical Convergence Zone
Paginierung
198 - 213
Datum der Veröffentlichung
2018
Status
Published
Titel
Last Interglacial Hydroclimate Seasonality Reconstructed From Tropical Atlantic Corals
Sub types
  • Article
Ausgabe der Zeitschrift
33

Data source: Web of Science (Lite)

Other metadata sources:
Abstract
<jats:title>Abstract</jats:title><jats:p>The seasonality of hydroclimate during past periods of warmer than modern global temperatures is a critical component for understanding future climate change scenarios. Although only partially analogous to these scenarios, the last interglacial (LIG, Marine Isotope Stage 5e, ~127–117 ka) is a popular test bed. We present coral δ<jats:sup>18</jats:sup>O monthly resolved records from multiple Bonaire (southern Caribbean) fossil corals (<jats:styled-content style="fixed-case"><jats:italic>Diploria strigosa</jats:italic></jats:styled-content>) that date to between 130 and 118 ka. These records represent up to 37 years and cover a total of 105 years, offering insights into the seasonality and characteristics of LIG tropical Atlantic hydroclimate. Our coral δ<jats:sup>18</jats:sup>O records and available coral Sr/Ca‐sea surface temperature (SST) records reveal new insights into the variable relationship between the seasonality of tropical Atlantic seawater δ<jats:sup>18</jats:sup>O (δ<jats:sup>18</jats:sup>O<jats:sub>seawater</jats:sub>) and SST. Coral δ<jats:sup>18</jats:sup>O seasonality is found to covary with SST and insolation seasonality throughout the LIG, culminating in significantly higher than modern values at 124 and 126 ka. At 124 ka, we reconstruct a 2 month lead of the coral δ<jats:sup>18</jats:sup>O versus the Sr/Ca‐SST annual cycle and increased δ<jats:sup>18</jats:sup>O<jats:sub>seawater</jats:sub> seasonality. A fully coupled climate model simulates a concomitant increase of southern Caribbean Sea summer precipitation and depletion of summer δ<jats:sup>18</jats:sup>O<jats:sub>seawater</jats:sub>. LIG hydroclimate at Bonaire differed from today's semiarid climate with a minor rainy season during winter. Cumulatively, our coral δ<jats:sup>18</jats:sup>O, δ<jats:sup>18</jats:sup>O<jats:sub>seawater</jats:sub>, and model findings indicate a mid‐LIG northward expansion of the South American Intertropical Convergence Zone into the southern Caribbean Sea, highlighting the importance of regional aspects within model and proxy reconstructions of LIG hydroclimate seasonality.</jats:p>
Autoren
  • William M Brocas
  • Thomas Felis
  • Paul Gierz
  • Gerrit Lohmann
  • Martin Werner
  • J Christina Obert
  • Denis Scholz
  • Martin Kölling
  • Sander R Scheffers
DOI
10.1002/2017pa003216
eISSN
2572-4525
ISSN
2572-4517
Ausgabe der Veröffentlichung
2
Zeitschrift
Paleoceanography and Paleoclimatology
Sprache
en
Online publication date
2018
Paginierung
198 - 213
Datum der Veröffentlichung
2018
Status
Published
Herausgeber
American Geophysical Union (AGU)
Herausgeber URL
http://dx.doi.org/10.1002/2017pa003216
Datum der Datenerfassung
2023
Titel
Last Interglacial Hydroclimate Seasonality Reconstructed From Tropical Atlantic Corals
Ausgabe der Zeitschrift
33

Data source: Crossref

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