Welcome to CCR's Paleoclimate in CGD

The Climate Change Research Section (CCR) is part of the Climate and Global Dynamics (CGD) Division at the National Center for Atmospheric Research (NCAR). The CCR section makes extensive use of state-of-the-art coupled climate system models to study the sensitivity and stability of the Earth system to a variety of forcings, including changes of greenhouse gases, aerosols, solar irradiance, volcanic forcing, land characteristics, and land use change. CCR is a focal point for NCAR and university paleoclimate research and serves as a resource to the paleoclimate and climate change research community in the use of the Community Climate System Model (CCSM). CCR scientists collaborate closely with major U.S. Department of Energy (DOE) laboratories in developing and using high-performance coupled climate models to address national and international climate research and climate change policy questions.

NCAR paleoclimate research focuses on using the Community Climate System Model to simulate climates of these three time regimes. Scientists at NCAR work closely with university colleagues to compare model simulations with observational records. The synergy between simulations and observations provides a unique framework for exploring Earth's climate system. This research is highly relevant for studying Earth's future climate, given that the projected greenhouse forcing over the next century is similar to that which existed in Earth's past.

Recent Publications

A process-based modeling approach to the interpretation of high-elevation tree-ring records in the Western US. 2008: Mtn. Clim. 2008 M. Hughes, M. Salzar, C. M. Ammann, R. Franklin, N. Fenbiao.

PMIP2 climate model-proxy data intercomparisons for LGM. 2008: PAGES Newsletter, 16, 18-20 B. L. Otto-Bliesner, E. Brady.

Quantifying Climate Feedbacks Using Radiative Kernels. 2008: J. Climate, 21, 3504-3520. Soden, B.J., I.M. Held, R. Colman, K.M. Shell, J.T. Kiehl, and C.A. Shields.

Response of thermohaline circulation to freshwater forcing under present day and LGM conditions. 2008: J. Climate, 21, 2239-2258 A. Hu, B. L. Otto-Bliesner, G. A. Meehl, W. Han, C. Morrill, E. Brady, B. P. Briegleb.

Using the Radiative Kernel Technique to Calculate Climate Feedbacks in NCAR's Community Atmospheric Model. 2008: J. Climate, 21, 2269-2282. Shell, K.M., J.T. Kiehl, and C.A. Shields.