Automation builds bigger, better ice tower reservoirs for high, dry farming

Towering artificial ice reservoirs called "ice stupas" have emerged since 2014 as an accessible means of storing irrigation water in dry, high-altitude mountain villages. Now, experiments with automated systems have demonstrated that construction of these giant ice cones, which top 30 meters (100 feet), can be accomplished with about one-tenth the volume of water manual methods use, according to new research being presented today at the Frontiers in Hydrology meeting in San Juan, Puerto Rico and online.