Extended Data Fig. 5: Probability density function of the model best fits for the pycnocline recipe.
From: Nitrogen isotopic constraints on nutrient transport to the upper ocean

The colors indicate different choices for the standard error: SE = standard error in the standard run (black line); SE*2 = 2 times higher standard error (purple line); and SE/2 = 2 times lower standard error (orange line); SRi in 2SE = alternative optimization scheme in which a model best fit is any model scenario falling within 2SE of the observations for all model variables (dashed black line).