absorption: Calculate light absorption in pure water
In psavoy/StreamLight: An R Package for Estimating Stream Lighting Conditions
Description
Usage
Arguments
Value
Description
Calculates light absorption as a function of depth in clear water,
using the mean absorption coefficient for pure water derived from
Pope & Fry 1997 Absorption spectrum ~380–700 nm of pure water. II.
Integrating cavity measurements. Effectively, this assumes that attenuation is
solely a function of absorption from pure water. In other words, the irradiance
attenuation coefficient (Kd) will be equal to just the absorption coefficient for
pure water.
Usage
1
absorption(driver, absorb_coef = 0.1521645)
Arguments
driver
The site driver file
absorb_coef
Absorption coefficient of clear water. Defaults to the
value derived from Pope & Fry (1997) as explained above (absorb_coef = 0.1521645).
Value
Returns a dataframe of predicted light at the benthic surface and the
irradiance attenuation coefficient.
psavoy/StreamLight documentation built on May 24, 2021, 2:03 p.m.
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Description Usage Arguments Value
Description
Calculates light absorption as a function of depth in clear water, using the mean absorption coefficient for pure water derived from Pope & Fry 1997 Absorption spectrum ~380–700 nm of pure water. II. Integrating cavity measurements. Effectively, this assumes that attenuation is solely a function of absorption from pure water. In other words, the irradiance attenuation coefficient (Kd) will be equal to just the absorption coefficient for pure water.
Usage
1 | absorption(driver, absorb_coef = 0.1521645)
|
Arguments
driver |
The site driver file |
absorb_coef |
Absorption coefficient of clear water. Defaults to the value derived from Pope & Fry (1997) as explained above (absorb_coef = 0.1521645). |
Value
Returns a dataframe of predicted light at the benthic surface and the irradiance attenuation coefficient.
R Package Documentation
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