set term pdf enhanced color font "helvetica,20" linewidth 1 size 10,6
set output "emission_altitude.pdf"
set key bottom

set xlabel "{/Symbol n} (cm^{-1})"
set ylabel "Emission altitude (m)"
plot \
     "./emission_altitude.txt" u 1:2 notitle w lines lt -1 lw 1 \
     
quit
