AUTHOR=Arie Kenshiro , Narama Chiyuki , Fukui Kotaro , Iida Hajime TITLE=Identification and persistence mechanism of very small glaciers and perennial snow patches in the northern Japanese Alps JOURNAL=Frontiers in Earth Science VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1442884 DOI=10.3389/feart.2025.1442884 ISSN=2296-6463