To answer these questions we will conduct an inter-disciplinary analysis of ice core proxies, atmospheric dynamics, modern processes, and numerical ice flow modeling. (cires.colorado.edu)
Study: Ammonium as ice core proxy shows strong Medieval Warm Period in the tropics. (pearltrees.com)
While ice core proxies and instrumental temperature measurements are different datasets, general characteristics and trends of climate oscillations do exist. (co2coalition.org)