Varied response of western Pacific hydrology to climate forcings over the last glacial period

Atmospheric deep convection in the west Pacific plays a key role in the global heat and moisture budgets, yet its response to orbital and abrupt climate change events is poorly resolved. Here, we present four absolutely dated, overlapping stalagmite oxygen isotopic records from northern Borneo that...

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Main Authors: Stacy A, Carolin, Kim M, Cobb, Jess F, Adkins, Brian, Clark, Jessica L, Conroy, Syria, Lejau, Jenny, Malang, Andrew A, Tuen
Format: Article
Published: American Association for the Advancement of Science 2013
Subjects:
Online Access:http://ir.unimas.my/id/eprint/6986/
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author Stacy A, Carolin
Kim M, Cobb
Jess F, Adkins
Brian, Clark
Jessica L, Conroy
Syria, Lejau
Jenny, Malang
Andrew A, Tuen
author_facet Stacy A, Carolin
Kim M, Cobb
Jess F, Adkins
Brian, Clark
Jessica L, Conroy
Syria, Lejau
Jenny, Malang
Andrew A, Tuen
author_sort Stacy A, Carolin
building UNIMAS Institutional Repository
collection Online Access
description Atmospheric deep convection in the west Pacific plays a key role in the global heat and moisture budgets, yet its response to orbital and abrupt climate change events is poorly resolved. Here, we present four absolutely dated, overlapping stalagmite oxygen isotopic records from northern Borneo that span most of the last glacial cycle. The records suggest that northern Borneo’s hydroclimate shifted in phase with precessional forcing but was only weakly affected by glacial-interglacial changes in global climate boundary conditions. Regional convection likely decreased during Heinrich events, but other Northern Hemisphere abrupt climate change events are notably absent. The new records suggest that the deep tropical Pacific hydroclimate variability may have played an important role in shaping the global response to the largest abrupt climate change events.
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spelling unimas-69862015-04-10T07:09:17Z http://ir.unimas.my/id/eprint/6986/ Varied response of western Pacific hydrology to climate forcings over the last glacial period Stacy A, Carolin Kim M, Cobb Jess F, Adkins Brian, Clark Jessica L, Conroy Syria, Lejau Jenny, Malang Andrew A, Tuen GE Environmental Sciences Atmospheric deep convection in the west Pacific plays a key role in the global heat and moisture budgets, yet its response to orbital and abrupt climate change events is poorly resolved. Here, we present four absolutely dated, overlapping stalagmite oxygen isotopic records from northern Borneo that span most of the last glacial cycle. The records suggest that northern Borneo’s hydroclimate shifted in phase with precessional forcing but was only weakly affected by glacial-interglacial changes in global climate boundary conditions. Regional convection likely decreased during Heinrich events, but other Northern Hemisphere abrupt climate change events are notably absent. The new records suggest that the deep tropical Pacific hydroclimate variability may have played an important role in shaping the global response to the largest abrupt climate change events. American Association for the Advancement of Science 2013 Article PeerReviewed Stacy A, Carolin and Kim M, Cobb and Jess F, Adkins and Brian, Clark and Jessica L, Conroy and Syria, Lejau and Jenny, Malang and Andrew A, Tuen (2013) Varied response of western Pacific hydrology to climate forcings over the last glacial period. Science, 340 (6140). pp. 1564-1566. ISSN 0036-8075 (print), 1095-9203 (online) http://www.sciencemag.org/content/340/6140/1564.full
spellingShingle GE Environmental Sciences
Stacy A, Carolin
Kim M, Cobb
Jess F, Adkins
Brian, Clark
Jessica L, Conroy
Syria, Lejau
Jenny, Malang
Andrew A, Tuen
Varied response of western Pacific hydrology to climate forcings over the last glacial period
title Varied response of western Pacific hydrology to climate forcings over the last glacial period
title_full Varied response of western Pacific hydrology to climate forcings over the last glacial period
title_fullStr Varied response of western Pacific hydrology to climate forcings over the last glacial period
title_full_unstemmed Varied response of western Pacific hydrology to climate forcings over the last glacial period
title_short Varied response of western Pacific hydrology to climate forcings over the last glacial period
title_sort varied response of western pacific hydrology to climate forcings over the last glacial period
topic GE Environmental Sciences
url http://ir.unimas.my/id/eprint/6986/
http://ir.unimas.my/id/eprint/6986/