dset ^../cgi-temp/xloc-tmp-so2.grads title cross section grads file undef -0.900000E+21 xdef 100 linear -129.2471 0.5928715 ydef 1 linear 6.570786 0.58 zdef 20 levels 8.056530 28.21160 60.51020 121.2730 243.7490 450.6160 746.4670 1093.960 1500.060 2018.990 2614.640 3246.470 3920.920 4645.640 5428.620 6279.770 7212.910 8344.930 9854.040 11100.00 tdef 1 linear 00Z01Mar2006 3hr vars 3 adata 20 99 concentration hwind 20 99 horiozontal wind vwind 20 99 vertical wind endvars