gf_unpack4.F90 File Reference

Unpack Section 4 (<a href="https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_sect4.shtml". More...

Go to the source code of this file.

Functions/Subroutines
subroutine	gf_unpack4 (cgrib, lcgrib, iofst, ipdsnum, ipdstmpl, mappdslen, coordlist, numcoord, ierr)
	Unpack Section 4 (Product Definition Section) of a GRIB2 message, starting at octet 6 of that Section. More...

Detailed Description

Unpack Section 4 (<a href="https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_sect4.shtml".

>Product Definition Section) of a GRIB2 message.

Author

Stephen Gilbert

Date

2000-05-26

Definition in file gf_unpack4.F90.

Function/Subroutine Documentation

gf_unpack4()

subroutine gf_unpack4	(	character(len = 1), dimension(lcgrib), intent(in)	cgrib,
		integer, intent(in)	lcgrib,
		integer, intent(inout)	iofst,
		integer, intent(out)	ipdsnum,
		integer, dimension(:), pointer	ipdstmpl,
		integer	mappdslen,
		real, dimension(:), pointer	coordlist,
		integer, intent(out)	numcoord,
		integer, intent(out)	ierr
	)

Unpack Section 4 (Product Definition Section) of a GRIB2 message, starting at octet 6 of that Section.

Parameters

[in]	cgrib	Character array that contains the GRIB2 message.
[in]	lcgrib	Length (in bytes) of GRIB message array cgrib.
[in,out]	iofst	Bit offset of the beginning/end(returned) of Section 4.
[out]	ipdsnum	Product Definition Template Number (Code Table 4.0).
[out]	ipdstmpl	Contains the data values for the Product Definition Template specified by ipdsnum. A safe dimension for this array can be obtained in advance from maxvals(4), which is returned from subroutine gribinfo.
[out]	mappdslen	Number of elements in ipdstmpl. i.e. number of entries in Product Defintion Template specified by ipdsnum.
[out]	coordlist	Pointer to real array containing floating point values intended to document the vertical discretisation associated to model data on hybrid coordinate vertical levels (part of Section 4). Must be deallocated by caller.
[out]	numcoord	Number of values in array coordlist.
[out]	ierr	Error return code. 0 no error. 5 "GRIB" message contains an undefined Grid Definition Template. 6 memory allocation error.

Author

Stephen Gilbert

Date

2000-05-26

Definition at line 35 of file gf_unpack4.F90.

References pdstemplates::extpdstemplate(), g2_gbytec(), g2_gbytesc(), pdstemplates::getpdstemplate(), and rdieee().

Referenced by getgb2s(), and gf_getfld().