Note: This page was originally sourced from our Blogger page: http://ncarrda.blogspot.com/2015/05/ds6080-narr-20090401-20150131-rerun4.html

Updates of NCEP North American Regional Reanalysis (NARR) data from April 1, 2009 to January 31, 2015 have been archived as "rerun4" version of ds608.0 dataset in rda.ucar.edu in May 2015.  This update fixes the codes that misread Mexican precipitation data and a bug introduced when NCEP switched the computer systems. The direct effects of these changes are in the precipitation and in the soil moisture fields.

Review rr4.pdf for details.