Large Arctic Temperature Change at the Wisconsin-Holocene Glacial Transition

  title={Large Arctic Temperature Change at the Wisconsin-Holocene Glacial Transition},
  author={Kurt M. Cuffey and Gary D. Clow and Richard B. Alley and Minze Stuiver and Edwin D. Waddington and Richard W. Saltus},
  pages={455 - 458}
Analysis of borehole temperature and Greenland Ice Sheet Project II ice-core isotopic composition reveals that the warming from average glacial conditions to the Holocene in central Greenland was large, approximately 15°C. This is at least three times the coincident temperature change in the tropics and mid-latitudes. The coldest periods of the last glacial were probably 21°C colder than at present over the Greenland ice sheet. 
Ice-core evidence of abrupt climate changes.
  • R. Alley
  • Geography, Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 2000
Ice-core records show that climate changes in the past have been large, rapid, and synchronous over broad areas extending into low latitudes, with less variability over historical times. These
Melting at the base of the Greenland ice sheet explained by Iceland hotspot history
Basal melting is widespread in the north-central Greenland ice sheet. Geophysical data and numerical modelling suggest a geothermal anomaly in this region resulting from the earlier passage of
Greenland palaeotemperatures derived from GRIP bore hole temperature and ice core isotope profiles
Modelling the temperature profile along the GRIP deep bore at the summit of the Greenland ice sheet leads to conversion factors that allow interpretation of the dated stable isotope profile as a
Stable Isotope Records from Greenland Deep Ice Cores: The Climate Signal and the Role of Diffusion
Glaciers and ice caps exert a strong influence on Earth’s environment and climate. They can grow and decay, change the sea level, control the albedo and shape the mountains and continents on which
Increasing North Atlantic climate variability recorded in a central Greenland ice core 1
Abstract Greenland ice‐core data show that the multiannual variability in North Atlantic climate has been increasing in the latter part of the Holocene. Statistically significant trends were
Glacial Climate in the Tropics
In his Perspective, Broecker discusses the oxygen isotope evidence reported by Schrag et al. (p 1930) that indicates that the cooling in deep tropical water was close to the freezing point.
ICE CORE METHODS | Borehole Temperature Records
Synchronous climate changes in antarctica and the north atlantic
  • Steig, Brook, Clow
  • Environmental Science, Geography
  • 1998
It is shown here that two of the most prominent North Atlantic events-the rapid warming that marks the end of the last glacial period and the Bolling/Allerod-Younger Dryas oscillation-are also recorded in an ice core from Taylor Dome, in the western Ross Sea sector of Antarctica.
Cool tropical temperatures shift the global δ18O‐T relationship: An explanation for the ice core δ18O ‐ borehole thermometry conflict?
The discrepancy between central Greenland borehole temperatures and the isotopic composition of Last Glacial Maximum ice can be explained by a shift in the δ18O‐T relationship for the hydrological


Glacial-Interglacial Changes in Moisture Sources for Greenland: Influences on the Ice Core Record of Climate
Results from general circulation model experiments suggest that the sources of Greenland precipitation varied with different climate states, allowing dynamic atmospheric mechanisms for influencing the ice core isotope shifts.
Palaeotemperatures still exist in the Greenland ice sheet
The temperature distribution through the Greenland ice sheet at the Dye 3 borehole is a record of the past climatic changes in the Arctic. The numerical model of the temperature distribution now
Effect of wind scouring on climatic records from ice-core oxygen-isotope profiles
Removal of winter snow by wind explains why the annual mean oxygen-isotope ratio at an ice divide is 2.5‰ less negative than it is 1.2 km downslope. Cores from two sites on an ice cap, Ellesmere
A 17,000-year glacio-eustatic sea level record: influence of glacial melting rates on the Younger Dryas event and deep-ocean circulation
Coral reefs drilled offshore of Barbados provide the first continuous and detailed record of sea level change during the last deglaciation. The sea level was 121 ± 5 metres below present level during
Tropical Temperature Variations Since 20,000 Years Ago: Modulating Interhemispheric Climate Change
Variable tropical SSTs may explain the interhemispheric synchroneity of global climate change as recorded in ice cores, snowline reconstructions, and vegetation records.
Sensitivity of the ice-divide position in Greenland to climate change
Model calculations of depth-age relations for deep ice cores in central Greenland are sensitive to stability of the ice-divide position. In addition, the folding of layers observed in the deep ice
Whilst stable-isotope analysis of ice cores yields the best quantitative evidence for past climate, there remains considerable uncertainty about the detailed relationship between the isotopic
Seasonal precipitation timing and ice core records.
The authors conclude that at present anomalies in Greenland ice core records should not be interpreted solely in terms of source region variations, and the combined use of oxygen 18, D and ionic species in the new Summit, Greenland cores should make it possible to answer empirically some of the questions raised by the GCM experiments.