WEBINAR: Quantifying Geomorphic Change Using Drone-based Lidar

Thursday, October 27, 2022, 2:00pm ET

Please join us for the webinar: Quantifying Geomorphic Change Using Drone-based Lidar on Thursday, October 27 at 2:00 PM Eastern.

Register here for this virtual event. After registering, you will receive a confirmation email containing information about joining the webinar.

Presented By/Author: Harrison Martin, Indiana University

Abstract: Lidar data have revolutionized the geosciences by allowing high-resolution (< 1-5 m), repeat data that can resolve both vegetation and bare-earth elevations. These lidar data are usually collected by plane-based (airborne; tens of km2 with ~10 points/m2) or ground-based (terrestrial; tens of m2 with thousands of points/m2) instruments. Here, we overview the use of a third, intermediate technique: drone-based lidar (~km2, with ~100 points/m2). We will explain and illustrate this novel method and how it differs from existing methods for measuring topography. We will illustrate the power that drone-based lidar offers geoscientists through case examples from our own research into landscape dynamics: When a tree falls in a forest, can a drone detect it? How does a catastrophic dam failure impact downstream river morphology? What can we learn about river mechanics with a high spatial-temporal dataset of an actively migrating river meander? We will summarize the ways that we have benefitted from this rapid-response, low-cost, and high-resolution imaging technique as applied to our research on hillslopes, natural disasters, and river geomorphology.

All IRIS webinars are archived for later viewing on the IRIS YouTube channel (Webinars playlist).

Any questions? Contact us at webinar@iris.edu.