Quantifying hurricane-induced coastal changes using topographic lidar
By: Sallenger Jr., William Krabill, Robert Swift, and John Brock
Links
- More information: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
USGS and NASA are investigating the impacts of hurricanes on the United States East and Gulf of Mexico coasts with the ultimate objective of improving predictive capabilities. The cornerstone of our effort is to use topographic lidar to acquire pre- and post-storm topography to quantify changes to beaches and dunes. With its rapidity of acquisition and very high density, lidar is revolutionizing the. quantification of storm-induced coastal change. Lidar surveys have been acquired for the East and Gulf coasts to serve as pre-storm baselines. Within a few days of a hurricane landfall anywhere within the study area, the impacted area will be resurveyed to detect changes. For example, during 1999, Hurricane Dennis impacted the northern North Carolina coast. Along a 70-km length of coast between Cape Hatteras and Oregon Inlet, there was large variability in the types of impacts including overwash, dune erosion, dune stability, and even accretion at the base of dunes. These types of impacts were arranged in coherent patterns that repeated along the coast over scales of tens of kilometers. Preliminary results suggest the variability is related to the influence of offshore shoals that induce longshore gradients in wave energy by wave refraction.
Suggested Citation
Sallenger, Krabill, W., Swift, R., and Brock, J., 2001, Quantifying hurricane-induced coastal changes using topographic lidar, in Coastal Dynamics '01 : proceedings of the Fourth Conference on Coastal Dynamics, June 11-15, 2001, Lund Sweden, p. 1007-1016.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Quantifying hurricane-induced coastal changes using topographic lidar |
| Year Published | 2001 |
| Language | English |
| Publisher | American Society of Civil Engineers |
| Contributing office(s) | Coastal and Marine Geology Program |
| Description | 10 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | Coastal Dynamics '01 : proceedings of the Fourth Conference on Coastal Dynamics, June 11-15, 2001, Lund Sweden |
| First page | 1007 |
| Last page | 1016 |
| Country | United States |