Abstract
An evaluation was completed to compare the accuracy of lidar (Light Detection and Ranging) against a statistically representative array of Real-Time Kinematic (RTK) GPS data in a low gradient, vegetated Southeastern U.S. salt marsh. In order to discern potential bias, analyses were carried out separately on the platform-only data, the creek-only data and then the combined datasets. Lidar data were found to overestimate the RTK GPS topographic data by an overall average of only 7 cm. Additionally, these data showed little effect from the dominant macrophyte vegetation within the lidar footprint. From this evaluation, 7 cm appears to be an appropriate vertical adjustment factor for using lidar data in low gradient salt marshes. However, local ground control will continue to be crucial in studies of intertidal environments incorporating airborne laser data collection.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
