AUTHOR=McClure James E. , Garing Charlotte , Herring Anna L. , Berg Carl Fredrik TITLE=Editorial: Pore-Scale Microstructure, Mechanisms, and Models for Subsurface Flow and Transport JOURNAL=Frontiers in Water VOLUME=4 YEAR=2022 URL=https://www.frontiersin.org/journals/water/articles/10.3389/frwa.2022.935404 DOI=10.3389/frwa.2022.935404 ISSN=2624-9375