Rainfall and Cloud Water Monitoring on Mt. Kaʻala

The Natural Area Reserve at the summit of Mt. Kaʻala on the island of Oʻahu serves as a refugia for native biodiversity and is of special ecohydrological significance as the forest captures water directly from passing clouds. Members of the Ecohydrology Laboratory at the University of Hawaiʻi at Mānoa are studying the canopy water balance of the cloud forest using instruments including a Juvik-type fog gage (left) and a meteorological suite to measure rainfall and estimate evapotranspiration (right).

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