CMORPH 0.5 degree 3-hourly Information Last Update: February 13 2007 The 0.5 degree 3-hourly CMORPH can be found on the ftp.cpc.ncep.noaa.gov server in the precip/CMORPH_3hr_halfdeg directory This archive beginning Dec 2002 extends the entire CMORPH record The data are compressed using the standard Unix compress function (files have a suffix of ".Z"). Each file is composed of 8 direct access binary ("big_endian") records that are defined as follows: Record 1: contains the "CMORPH" precipitation only for 00 UTC Record 2: contains the "CMORPH" precipitation only for 03 UTC . . Record 8: contains the "CMORPH" precipitation estimates for 21 UTC All units are "mm/hr". Missing data are denoted by values of "-9999." Each record contains a 720 x 240 REAL*4 array of data which is oriented from 0.25E EASTward and from 59.75N SOUTHward, with a grid increment of 0.5 degrees of latitude and longitude. Thus, the grid locations are the centers of a 0.5 degree lat/lon grid box. Note that these estimates represent spatial averages, so the data are grid-centered, rather than lattice-centered. For example (1,1) is 0.25E, 59.75N (2,2) is 0.75E, 59.25N, etc. There is an associated GrADS ctl file with this data set: CMORPH_05deg-3hr.ctl