We present a new algorithm for the estimation of the plant area density (PAD) profiles and plant area index (PAI) for forested areas based on data from airborne lidar. The new element in the algorithm is to scale and average returned lidar intensities for each lidar pulse. whereas other methods do not use the intensity information at all. use only average intensity values. https://www.roneverhart.com/Magic-Colors-Bubble-Gum-Crayons-Packs-24-Piece-Box/