Journal ArticleDOI
Correlation between Arabian Sea and Greenland climate oscillations of the past 110,000 years
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TLDR
The authors found evidence for a general relationship between low-latitude monsoonal climate variability and the rapid temperature fluctuations of high northern latitudes that are recorded in the Greenland ice records.Abstract:
Palaeoclimate studies have revealed the general high-frequency instability of Late Pleistocene climate—for example, the so-called Dansgaard–Oeschger and Heinrich events—on timescales of a few millennia, centuries or even decades1,11. Here we present evidence for a general relationship between low-latitude monsoonal climate variability and the rapid temperature fluctuations of high northern latitudes that are recorded in the Greenland ice records. Sediment cores from the northeastern Arabian Sea show laminated, organic-carbon-rich bands, reflecting strong monsoon-induced biological productivity, that correlate with the mild interstadial climate events in the northern North Atlantic region. In contrast, periods of lowered southwest monsoonal intensity, indicated by bioturbated, organic-carbon-poor bands, are associated with intervals of high-latitude atmospheric cooling and the injection of melt water into the North Atlantic basin. Our records suggest that Dansgaard–Oeschger and Heinrich events are strongly expressed in low-latitude (monsoonal) climate variability, suggesting the importance of common forcing agents such as atmospheric moisture and other greenhouse gases.read more
Citations
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Journal ArticleDOI
The genetic legacy of the Quaternary ice ages
TL;DR: The present genetic structure of populations, species and communities has been mainly formed by Quaternary ice ages, and genetic, fossil and physical data combined can greatly help understanding of how organisms were so affected.
Journal ArticleDOI
A High-Resolution Absolute-Dated Late Pleistocene Monsoon Record from Hulu Cave, China
Yongjin Wang,Yongjin Wang,Hai Cheng,Richard Lawrence Edwards,Zhisheng An,Jiangying Wu,Chuan-Chou Shen,Jeffrey A. Dorale +7 more
TL;DR: The record links North Atlantic climate with the meridional transport of heat and moisture from the warmest part of the ocean where the summer East Asian Monsoon originates and generally agrees with the timing of temperature changes from the Greenland Ice Sheet Project Two (GISP2).
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Novel Mesoporous Materials with a Uniform Distribution of Organic Groups and Inorganic Oxide in Their Frameworks
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Journal ArticleDOI
Holocene forcing of the Indian monsoon recorded in a stalagmite from southern Oman.
Dominik Fleitmann,Stephen J. Burns,Manfred Mudelsee,U. Neff,Jan Kramers,Augusto Mangini,Albert Matter +6 more
TL;DR: A high-resolution oxygen-isotope record from a thorium-uranium–dated stalagmite from southern Oman reflects variations in the amount of monsoon precipitation, indicating that early Holocene monsoon intensity is largely controlled by glacial boundary conditions.
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Ocean Deoxygenation in a Warming World
TL;DR: The potential for larger O2 declines in the future suggests the need for an improved observing system for tracking ocean 02 changes, and an important consequence may be an expansion in the area and volume of so-called oxygen minimum zones.
References
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Journal ArticleDOI
Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanism
TL;DR: In this paper, the synthesis of mesoporous inorganic solids from calcination of aluminosilicate gels in the presence of surfactants is described, in which the silicate material forms inorganic walls between ordered surfactant micelles.
Journal ArticleDOI
Evidence for general instability of past climate from a 250-kyr ice-core record
Willi Dansgaard,Sigfus J Johnsen,Sigfus J Johnsen,Henrik Clausen,Dorthe Dahl-Jensen,Niels S. Gundestrup,Claus U. Hammer,Christine S. Hvidberg,Jørgen Peder Steffensen,Arny E. Sveinbjörnsdottir,Jean Jouzel,Gerard C. Bond +11 more
TL;DR: In this paper, the authors present a detailed stable isotope record for the full length of the Greenland Ice-core Project Summit ice core, extending over the past 250 kyr according to a calculated timescale, and find that climate instability was not confined to the last glaciation, but appears also have been marked during the last interglacial (as explored more fully in a companion paper), and during the previous Saale-Holstein glacial cycle.
Journal ArticleDOI
Age dating and the orbital theory of the ice ages: Development of a high-resolution 0 to 300,000-year chronostratigraphy
Douglas G. Martinson,Nicklas G Pisias,James D. Hays,John Imbrie,Theodore C. Moore,Nicholas J Shackleton +5 more
TL;DR: Using the concept of "orbital tuning", a continuous, high-resolution deep-sea chronostratigraphy has been developed spanning the last 300,000 yr as mentioned in this paper.
Journal ArticleDOI
Irregular glacial interstadials recorded in a new Greenland ice core
Sigfus J Johnsen,Sigfus J Johnsen,Henrik Clausen,Willi Dansgaard,K. Fuhrer,Niels S. Gundestrup,Claus U. Hammer,Peter Iversen,Jean Jouzel,Bernhard Stauffer,Jørgen Peder Steffensen +10 more
TL;DR: In this paper, the authors present results from a new deep ice core drilled at the summit of the Greenland ice sheet, where the depositional environ-ment and the flow pattern of the ice are close to ideal for core recovery and analysis.
Journal ArticleDOI
Correlation between climate events in the North Atlantic and China during the last glaciation
TL;DR: The authors examined grain-size data from Chinese loess and intercalated accretionary palaeosols of last-glacial age for evidence of similar climate signals remote from the North Atlantic region.