REF: [neb_tools](https://ucdavis.box.com/s/mt7yvrgv52iwyyz43hyf3has6k1vb655) [neb_plot.py](https://ucdavis.box.com/s/9am56lztixid64mmj7zifqcr4q3m3i3u)
REF:
neb_tools
neb_plot.py