HawaiiView has recently released a 30-m spatial resolution forest height map for the island of Maui (https://hawaiiview.org/data/l2fhm-maui/), predicted using Landsat-8 cloud-free mosaic and calibrated using airborne lidar data. This is an extension of the 30-m forest height map for Oʻahu (https://hawaiiview.org/data/l2fhm-oahu/) released two years ago. UH GEO Professor Qi Chen leads the project.
