The North American Regional Climate Change Assessment Program: Overview of Phase I Results

Linda O. Mearns, Ray Arritt, Sébastien Biner, Melissa S. Bukovsky, Seth McGinnis, Stephan Sain, Daniel Caya, James Correia, Dave Flory, William Gutowski, Eugene S. Takle, Richard Jones, Ruby Leung, Wilfran Moufouma-Okia, Larry McDaniel, Ana M.B. Nunes, Yun Qian, John Roads, Lisa Sloan, Mark Snyder

Research output: Contribution to journalArticlepeer-review

396 Scopus citations

Abstract

North American Regional Climate Change Assessment Program (NARCCAP) evaluated temperature and precipitation results from six regional climate models driven by NCEP-DOE Reanalysis II boundary conditions for 1980-2004 to investigate uncertainties in regional-scale climate projections. The program included six RCMs use boundary conditions from the NCEP-DOE Reanalysis II (R2) for a 25-yr period. It also included boundary conditions provided by four AOGCMs for 30 years of current climate (1971-2000) and 30 years of a future climate (2041-70) for the Special Report on Emissions Scenarios (SRES) A2 emissions scenario. The results are found to be within the range of those found in other multiple model comparisons, seasonal temperature is relatively well produced by most models but seasonal precipitation is less so. With regard to seasonal average temperature biases over the whole domain RSM and MM5 had the lowest total RMSEs, whereas HadRM3 had the greatest overall temperature bias.

Original languageEnglish
Pages (from-to)1337-1362
Number of pages26
JournalBulletin of the American Meteorological Society
Volume93
Issue number9
DOIs
StatePublished - Sep 2012
Externally publishedYes

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