Description Usage Arguments Details Value Note Author(s) Source References See Also Examples
View source: R/Oyster_accumulation.R
Function that combines the concentrations of trace elements per sub-increment with a smoothed record of mass accumulation with time to calculate the rate of accumulation of each element through the lifetime of the bivalve. de Winter, N. J. (2017) <doi:10.5194/gmd-2017-137>
1 | Oyster_accumulation(el_time, subincr_matrix, npma = 10)
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el_time |
Matrix of trace element concentrations through time |
subincr_matrix |
Data frame that contains characteristics of every sub-increment |
npma |
Integer n-value determining the window size of the moving average smoothing of the mass accumulation record |
A record of mass accumulation of the shell is smoothed using a moving average. This mass accumulation record is multiplied with the records of trace element concentrations per sub-increment to obtain a record of mass accumulation of each trace element through time and a record of cumulative trace element accumulation through time
Matrices of trace element accumulation per sub-increment and cumulative trace element accumulation
M_el_mat |
Matrix of mass accumulation per trace element |
M_el_mat_c |
Matrix of cumulative mass accumulation per trace element |
Please cite Geoscientific Model Development paper dealing with the ShellTrace model
Niels J. de Winter
GitHub
Manuscript
Supplementary data
Author website
de Winter, N. J.: ShellTrace v1.0 ? A new approach for modelling growth and trace element uptake in marine bivalve shells: Model verification on pacific oyster shells (Crassostrea gigas), Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2017-137, in review, 2017.
"Oyster_el_time"
1 | AccL<-Oyster_accumulation(el_time, subincr_matrix6, npma = 10)
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