The U.S. Climate Change Science Program (CCSP), established in 2002 to coordinate climate and global change research conducted in the United States and to support decision-making on climate-related issues, is producing twenty-one synthesis and assessment reports that address its research, observation, and decision-support needs. This report, produced by the National Oceanic and Atmospheric Administration (NOAA) in coordination with the National Aeronautics and Science Administration (NASA) and other agencies, will summarize the present status of national and international climate reanalysis efforts and discuss key research findings on the strengths and limitations of the current reanalysis products for describing and analyzing the causes of climate variations and trends that have occurred during the time period of the reanalysis records (approximately the last 50 years). This information is important for policymakers in identifying and understanding the causes of remaining uncertainties and for climate program managers to develop priorities for future observing, modeling, and analysis systems required to advance national and international efforts to describe and attribute causes of observed climate variability and change.
SAP-1.3 - Re-analyses of Historical Climate Data for Key Atmospheric Features.
Implications for attribution of causes of observed change.