Service change, September 2017

Due to historical reason analysis date and time values are currently encoded incorrectly in MACC_GFAS file and directory names:

• Dates in directory names do not match dates in file names.
• Also, step value is incorrectly encoded in GRIB files.

Here is an example of the location and the file name of a latest analysis as of this morning:

/DATA/MACC_GFAS/20170913> ls *frpfire.grib
-rw-r--r--    1 anonymou ec         25920120 Sep 13 05:30 z_macc_c_ecmf_20170912120000_gfas_an_sfc_frpfire.grib

/DATA/MACC_GFAS/20170913> grib_ls -p date,time,step z_macc_c_ecmf_20170912120000_gfas_an_sfc_frpfire.grib
date        time        step        
20170912    1200        0          

This file contains 00:00 - 23:59 analysis from the 12 Sep.

To make directory and file names more compliant with ECMWF practices, we've created a new parallel stream called CAMS_GFAS with exactly the same GFAS data but using a more consistent naming and date convention.

The same data is available in this file in the new stream:

/DATA/CAMS_GFAS/20170912> ls *frpfire.grib
-rw-r--r--    1 anonymou ec         25920120 Sep 13 05:29 z_cams_c_ecmf_20170912000000_gfas_an_sfc_frpfire.grib

/DATA/CAMS_GFAS/20170912> grib_ls -p date,time,step z_cams_c_ecmf_20170912000000_gfas_an_sfc_frpfire.grib
date        time        step        
20170912    0           0-24       

The data will become available in the new stream at the same time as in the existing MACC_GFAS stream until December 2017, when MACC_GFAS stream will be phased out.