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Does anyone know of a source of processed LIDAR data that shows heights/elevations of the understory and of the tree-tops at around 1 meter horizontal resolution? I'm also looking for density maps1 for the understory (ideally 0 to 2 meters AGL). So far I've only been able to find bare earth DEMs for the area I'm working in (New York State, USA).

Here's the data I've found so far:

1 e.g. returns per square meter less than 2 meters above ground level

Something like this (B & C) is what I'm looking for: Understory - EROS LiDAR Credit: EROS Fire Science Team, Earth Resources Observation and Science Center. Public domain. https://www.usgs.gov/media/images/understory-eros-lidar

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