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https://hdl.handle.net/11681/47568| Title: | Applicability of CoastSnap, a crowd-sourced coastal monitoring approach for US Army Corps of Engineers district use |
| Authors: | Conery, Ian W. Bruder, Brittany L. Geis, Connor Straub, Jessamin A. Spore, Nicholas J. Brodie, Katherine L. |
| Keywords: | Shorelines--Monitoring Beaches--Monitoring Crowdsourcing Cell phones--Photographs |
| Publisher: | Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL TR-23-10 |
| Abstract: | This US Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, technical report details the pilot deployment, accuracy evaluation, and best practices of the citizen-science, coastal-image monitoring program CoastSnap. Despite the need for regular observational data, many coastlines are monitored infrequently due to cost and personnel, and this cell phone-image-based approach represents a new potential data source to districts in addition to providing an outreach opportunity for the public. Requiring minimal hardware and signage, the system is simple to install but requires user-image processing. Analysis shows the CoastSnap-derived shorelines compare well to real-time kinematic and lidar-derived shorelines during low-to-moderate wave conditions (root mean square errors [RMSEs] <10 m). During high-wave conditions, errors are higher (RMSE up to 18 m) but are improved when incorporating wave run-up. Beyond shoreline quantification, images provide other qualitative information such as storm-impact characteristics and timing of the formation of beach scarps. Ultimately, the citizen-science tool is a viable low-cost option to districts for monitoring shorelines and tracking the evolution of coastal projects such as beach nourishments. |
| Description: | Technical Report |
| Gov't Doc #: | ERDC/CHL TR-23-10 |
| Rights: | Approved for Public Release; Distribution is Unlimited |
| URI: | https://hdl.handle.net/11681/47568 http://dx.doi.org/10.21079/11681/47568 |
| Appears in Collections: | Technical Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ERDC-CHL TR-23-10.pdf | 6.47 MB | Adobe PDF |  View/Open |