netcdf, dimension levels

[Thomas LOUBRIEU]

Hi everybody,

I use grads  with gds for netcdf files publication.
I wanted to configure my dataset that way :

DSET /home4/begmeil/coriolis_etc/co0401/oa/field/TEMP/OA_%y4%m2%d2.nc
DTYPE netcdf
UNDEF 32767.0 _FillValue
UNPACK scale_factor add_offset
OPTIONS template
XDEF 421 LEVELS -100 ...
YDEF 597 LEVELS -69.9662 ...
ZDEF 59 LEVELS 5 10 20 30 40 50 60 80 100 120 140 160 180 200 220 240
260 280 300 320 360 400 440 480 520 560 600 640 680 720 760 800 840 880
920 960 1000 1040
1080 1120 1160 1200 1240 1280 1320 1360 1400 1440 1480 1520 1560 1600
1650 1700
1750 1800 1850 1900 1950
TDEF 257 LINEAR 05jan2000 7dy
VARS 2
temperature 59 t,z,x,y sea temperature
pct_variance 59 t,z,x,y variance a priori
ENDVARS

But my X and Y dimensions are irregularly distributed. I cannot use XDEF
421 LINEAR or GAUS..., and using LEVELS, the dimension is to high to be
defined into a single line of ctl file (255 characters maximum, I think).

Do you have any idea that could help me,

Thanks,

Thomas

PS : I use GrADS 1.9b3 and GDS 1.2.9.