CDOM Indicies

[akshoelace]

Emily will talk to Jim/work on this issue
@bristol-emily feel free to elaborate on this issue more

[bristol-emily]

We will include the following CDOM indicies in our internal collated spreadsheet: a250, a350, a356, SUVA_254, spectral slope in 275-295 region.

Since we only post the CDOM absorption spectra on EDI, we'll need to calculate the spectral slopes and SUVA, and pull out the specific absorption coefficients for the collated spreadsheet.