On the web you can find the source code for a program called tbl2cdf.
I find this program useful for putting columnar data in netCDF format.
Here's an example of how I use it to skip the header and then
put three columns of ice core data into a file
fl_stb='icr_JRI_dst_lac_1831_1992'
fl_src="${HOME}/icr/${fl_stb}.txt"
fl_tmp="/tmp/${fl_stb}.txt"
fl_hdr="/tmp/${fl_stb}.hdr"
fl_nc="${DATA}/icr/${fl_stb}.nc"
cat > ${fl_hdr} << EOF
time:f cnc_dst_ngxg:f cnc_lac_ngxg:f
EOF
tail --lines=+2 ${fl_src} > ${fl_tmp}
tbl2cdf -h ${fl_hdr} ${fl_tmp} ${fl_nc}
hope this helps,
charlie