Example of LDM product identifier for CONDUIT
data/nccf/com/nam/prod/nam.20071011/nam.t06z.awip1284.tm00.grib2 !grib2/ncep/NAM_84/#000/200710110600F084/UREL;VREL/10 m HGHT! 000016
The above identifier states that the grid was the 16th product in the file named
data/nccf/com/nam/prod/nam.20071011/nam.t06z.awip1284.tm00.grib2
on the NCEP file server.
The individual grid information deleimited by the "!" characters denotes
that the product is in GRIB2 format, is from the NCEP North American Mesoscale (NAM)
model (NCEP assigned model number 84). The grid projection is defined internally and
no reference grid number is used in the GRIB2 data. The awip12 grid is the 12km
(grid #218) AWIPS grid. The model initial time
is 0600Z October 11, 2007, and the product is the 84 hour forecast of U and V
wind components at 10 meters. Note that GRIB2 allows for more than one grid to
be included within a product. In this case U and V wind components are 2 grids
contained within the grid product.
The vertical coordinate description within the metadata consists of three space separated
fields (the "-" character will be used when a field is not applicable). These are:
- Numeric level
- Units of the numeric level
- The vertical coordinate
