NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Patrick,It's not the lack of glue. The helicity is not there. It was removed during a change to the GFS in May 2012. The full TIN is available at :http://www.nws.noaa.gov/os/notification/tin12-22gfs_hybridaab.htm but the part of interest to you is this wording:
1km helicity will be removed from the 0.5, 1 and 2.5 degree pressure GRIB files.This field was added to these files by mistake during a previous implementation.
Becky Cosgrove NCEP Central Ops On 3/27/2013 9:42 AM, Patrick L. Francis wrote:
Something has changed with conduit GFS =-Oin October 2011, 0-1km helicity was included in the conduit stream and decoded by gempak.note gdinfo from 2011: http://modelweather.com/files/grids/gfs/006_2k11.txt 45 111005/0000F006 1000 0 HGHT HLCY yet this morning when i went to use the grid it isn't there :'( note gdinfo from this morning: http://modelweather.com/files/grids/gfs/006.txtHas anyone else noticed the same thing, or did I just pick the wrong day to quit sniffing glue :-)cheers, --patrick
gembud archives: