<p dir="ltr">This repository contains Sections S1-S4, Movies S1-S7 and Figures S1-S11 of the following manuscript:</p><p dir="ltr">Ng, F. S. L. (2024, in press). The grain-scale signature of isotopic diffusion in ice, The Cryosphere. https://doi.org/10.5194/egusphere-2024-1012 </p><p dir="ltr">See SI_guide_R_TCA.pdf for information, including the figures and the movie captions.</p>