AUTHOR=Shen Chaopeng , Chen Xingyuan , Laloy Eric TITLE=Editorial: Broadening the Use of Machine Learning in Hydrology JOURNAL=Frontiers in Water VOLUME=3 YEAR=2021 URL=https://www.frontiersin.org/journals/water/articles/10.3389/frwa.2021.681023 DOI=10.3389/frwa.2021.681023 ISSN=2624-9375