|
Extinction Coefficient calculations |
|
| Rough calculation using secci disc: |
| k = 1.45 / d |
| where; |
| k = extinction coefficient |
| d = depth at which secchi disc is still visible to
naked eye |
|
| |
| May also be expressed as; |
| k = (2.3 x (log Id1- log Id2))
/ (d2 - d1) |
| where; |
| k = extinction coefficient |
| Id1= Intensity of light (of a specific
wavelength) at depth "d1" |
| Id2= Intensity of light (of a specific
wavelength) at depth "d2" |
|