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Mike, The 5 known coordinates are stored as the numbers shown since there are some special transformation GEMPAK can make with those coordinates. Any other coordinate can be stored as a packed integer, which is how HAGL, HYBL, PAGE etc are represented. You should always convert your coordinate name to the integer representation name using the LV_CORD() subroutine- eg, you pass it PRES, it returns to the number 2, you pass it HAGL and it returns a really long number (doen't hard code in numbers...that guarantees things will break later). To reverse the transformation, pass the numeric coordinate to LV_CCRD. Steve Chiswell Unidata User Support On Fri, 4 Feb 2000, Mike Trexler wrote: > Chiz, > > Thanks for the earlier help with my oversight. My new question is... > in the subroutine GD_WPGD, the values for IVCORD are quoted in > the documentation to be: > > C* IVCORD INTEGER Vertical coordinate * > C* 0 = NONE * > C* 1 = PRES * > C* 2 = THTA * > C* 3 = HGHT * > > So what value does this take for other vertical coordinates, specifically > for my question Height Above Ground Level (HAGL)?? > > Thanks > Mike > > -- > __________________________________________________ > ************************************************** > ****** C. Michael Trexler ****** > ****** N C State Univ. - Box 8208 ****** > ****** Dept. of Mar/Earth/Atmos. Sciences ****** > ****** Research III Rm. 100 ****** > ****** Raleigh, NC 27695-8208 ****** > ****** (919) 515-1447 Phone ****** > ****** (919) 515-1683 Fax ****** > ************************************************** > -------------------------------------------------- > ****** address@hidden ****** > __________________________________________________ > > > >