Millennial and orbital variations of El Niño/Southern Oscillation and high-latitude climate in the last glacial period

  title={Millennial and orbital variations of El Ni{\~n}o/Southern Oscillation and high-latitude climate in the last glacial period},
  author={Chris S. M. Turney and A. Peter Kershaw and Steven C. Clemens and Nicholas P Branch and Patrick Moss and L. Keith Fifield},
The El Niño/Southern Oscillation (ENSO) phenomenon is believed to have operated continuously over the last glacial–interglacial cycle. ENSO variability has been suggested to be linked to millennial-scale oscillations in North Atlantic climate during that time, but the proposals disagree on whether increased frequency of El Niño events, the warm phase of ENSO, was linked to North Atlantic warm or cold periods. Here we present a high-resolution record of surface moisture, based on the degree of… 
Persistent millennial-scale climate variability in the eastern tropical North Pacific over the last two glacial cycles
High-resolution sediment records from the eastern tropical North Pacific (ETNP) spanning the last ~240 ka B.P. were studied to document the nature of millennial-scale climatic events in the tropical
Mechanisms for millennial‐scale global synchronization during the last glacial period
Global climate during the last glacial period was punctuated by abrupt warmings and occasional pulses of freshwater into the North Atlantic that disrupted deepwater production. These massive
Southern Hemisphere climate variability forced by Northern Hemisphere ice-sheet topography
A high-resolution water isotope record from West Antarctica is used to demonstrate that interannual to decadal climate variability at high southern latitudes was almost twice as large at the Last Glacial Maximum as during the ensuing Holocene epoch.
ITCZ rather than ENSO signature for abrupt climate changes across the tropical Pacific?
Extratropical Influences on the El Niño–Southern Oscillation through the Late Quaternary
  • A. Bush
  • Environmental Science, Geography
  • 2007
Abstract A sequence of numerical simulations with a coupled atmosphere–ocean general circulation model configured for particular times during the late Quaternary shows that simulated El Nino–Southern
Rapid global ocean-atmosphere response to Southern Ocean freshening during the last glacial
It is shown that Southern Ocean freshwater hosing can trigger global change through climate modelling and the alignment of terrestrial, ice and marine 14C and 10Be records, and that Antarctic-sourced salinity anomalies can generate climate changes that are propagated globally via an atmospheric Rossby wave train.
Does the El Niño–Southern Oscillation control the interhemispheric radiocarbon offset?
Abrupt North Atlantic circulation changes in response to gradual CO2 forcing in a glacial climate state
Glacial climate is marked by abrupt, millennial-scale climate changes known as Dansgaard–Oeschger cycles. The most pronounced stadial coolings, Heinrich events, are associated with massive iceberg


Variability in the El Niño-Southern Oscillation Through a Glacial-Interglacial Cycle
Annual banded corals from Papua New Guinea are used to show that ENSO has existed for the past 130,000 years, operating even during “glacial” times of substantially reduced regional and global temperature and changed solar forcing, and it is found that during the 20th century ENGSO has been strong compared with E NSO of previous cool and warm times.
Variability of El Niño/Southern Oscillation activity at millennial timescales during the Holocene epoch
A record of sedimentation in Laguna Pallcacocha, southern Ecuador, which is strongly influenced by ENSO variability, and covers the past 12,000 years continuously is presented, finding that changes on a timescale of 2–8 years become more frequent over the Holocene until about 1,200 years ago, and then decline towards the present.
Super ENSO and Global Climate Oscillations at Millennial Time Scales
The late Pleistocene history of seawater temperature and salinity variability in the western tropical Pacific warm pool is reconstructed from oxygen isotope (δ18O) and magnesium/calcium composition
Last Interglacial and Early Glacial ENSO
Abstract Although the link between insolation and climate is commonly thought to be in the high northern latitudes in summer, our results show that the start of the last glaciation in marine isotope
Correlations between climate records from North Atlantic sediments and Greenland ice
OXYGEN isotope measurements in Greenland ice demonstrate that a series of rapid warm-cold oscillations—called Dansgaard–Oeschger events—punctuated the last glaciation1. Here we present records of sea
Patterns of Ice-Rafted Detritus in the Glacial North Atlantic (40–55°N)
The observation by Heinrich (1988) that, during the last glacial period, much of the input of ice-rafted detritus to the North Atlantic sediments may have occurred as a succession of catastrophic
New views of tropical paleoclimates from corals
Record of last interglacial–glacial cycle from northeastern Queensland
  • A. Kershaw
  • Environmental Science, Geography
  • 1978
DETAILED analyses of deep-sea sediment cores have produced spectacular advances in the knowledge of Quaternary stratigraphy and palaeoclimates. These have allowed the rigorous testing of hypotheses
Isotope evidence of paleo - El Niño - Southern Oscillation cycles in loess-paleosol record in the central United States
ABSTRACT The δ 13 C of soil carbonate in rhizoconcretions collected from aloess-paleosol sequence in the central United States indicates that grow-ing-season C 3 /C 4 plant ratio oscillated by 35% on