dual nitrate isotopes in groundwater

[Alaakasem]

I need to trace nitrate sources and find the possible nitrate sources contributions to the groundwater through MixSIAR. I have tried to use the script of wolve example and modify it, but with no good result. I have searched to find a script for these isotopes (d15N and d18O of nitrate) but no results. Any help to build this script or to find a script to modify it? thank you

[Alaakasem]

@brianstock

[Alaakasem]

@andrewcparnell

[andrewcparnell]

Hi @Alaakasem. If you want to send through your current script I can have a look to see if it will run (either email or here). Follow the instructions at http://adv-r.had.co.nz/Reproducibility.html to provide a reproducible example.

[Alaakasem]

Thank you so much, dear Professor Parnell. I'm so sorry for the delayed response and appreciate your help.

[Alaakasem]

The problem was with the initial value of dual nitrate isotopes and the fractionation factor, and I abled to get the source partitioning from the results of the model (e.g., summary_statistics and the posterior_density_diet_p_global).