The Definition of Perennial Streams Based on a Wet Channel Network Extracted from LiDAR Data

This study assesses the characteristics of perennial streams using dimensionless relationship between streamflow exceedance probability and wet channel ratio based on a network extracted from light detection ranging (LiDAR) data. LiDAR provides topographic data signals’ intensity in high-resolution with high accuracy to provide useful information for drainage networks extraction. In this study, valley are spatial resolution 1 meter. Based available observations across United States, we selected 30 watersheds various climate conditions analyzed their streams. The stream were developed define observed identified channel. results consistent previous studies definition through transformation into form confirmed possibility applying as an alternative parameter stream.