dset ^tau_v1.bin
 title TAU DATA
 undef -9999.00
 xdef 1 linear 1. 1.
 ydef 24 LEVELS -90. -82.2 -74.3 -66.5 -58.7 -50.9 -43.0 -35.2 -27.4 -19.6 -11.7 -3.9 3.9 11.7 19.6 27.4 35.2 43.0 50.9 58.7 66.5 74.3 82.2 90
 zdef 1 linear 1 1
 TDEF 1956 linear 00Z01JAN1850 1mo
 Vars 1
 tau 1 0 the tau value
 endVars