Unit Affiliation: Geochemistry, Lamont-Doherty Earth Observatory (LDEO)
DESCRIPTION: A region detailed chronology of glacial pulses during the Holocene will developed for New Zealand's Southern Alps by 10Be surface exposure dating moraines from both the eastern and western flanks of New Zealand and from both large glacier valleys and small glacier valleys in order to better understand climate instability during the Holocene and its affects on humans.
OUTCOMES: Found that New Zealand's Southern Alp's glaciers showed anti-symmetric patterns compared to northern glaciers, however northern and southern glaciers have been retreating in sync over the last 150 years. This has shown that there was not a "global Little Ice Age" and that anthropogenic forcing has surpassed the natural inter-hemispherically anti-phased climate pattern. Six journal publications and two websites.
A Southern Hemispheric Perspective on Holocene Climate Variability Based on Mountain Glacial Chronologies
Ancient Ghost Forests Reveal how Alaska’s Glaciers and Cedar Trees Responded to Past Warming Events
Benchmarking Spatial Patterns of Glacier Change
Collaborative Research: P2C2-Reconstructing Tropical Pacific Climate Variability and Monsoon Systems, and Abrupt Changes from Ice Cores on Irain Jaya, Indonesia and Hualcan, Peru