[Homer-users] Homer extinction coefficients update

[Alexandru Ciobanu]

Hi everyone,

I have a question about the source of the extinction coefficients data.

In the file GetExtinctions.m the first set of values is said to be the Gratzer and Kollias set also available here:
    http://omlc.org/spectra/hemoglobin/summary.html <http://omlc.org/spectra/hemoglobin/summary.html>

Interestingly, a part of the data seems to be overwritten with (newer?) data.

See around 650nm, the coefficients at the link above are:
   646   390.4   3965.08
   648   379.2   3857.6
   650   368     3750.12
   652   356.8   3642.64
   654   345.6   3535.16
versus the same data points in Homer:

   646     390.4   3965.08
   648     379.2   3857.6
   650.0   506.0   3743.0     <— Notice difference from here on.
   652.0   488.0   3677.0
   654.0   474.0   3612.0

What is the source of these newer set of values? Are these from a newer publication? 

sincerely,
Alexandru Ciobanu

     
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