Thread: IRIS Webinar TOMORROW (10/27) Using drone-based lidar to quantify geomorphic change

Last chance to register for the next IRIS Webinar happening Thursday, October 27th at 2PM Eastern

Title: Quantifying geomorphic change using drone-based lidar

Author/Presenter: Harrison Martin, Indiana University

Register in advance for this webinar:
https://zoom.us/webinar/register/WN_G5oa49iETlSDWmotFHc7_A

After registering, you will receive a confirmation email containing information about joining the webinar.

Abstract: Lidar data has 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 at
https://www.youtube.com/playlist?list=PLD4D607C2FA317E6D

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Justin Sweet, PhD
Portable Project Associate
IRIS/PASSCAL Instrument Center