Coastal topography change at Gulf Islands National Seashore, Texas: 2018–2021 data summary
Bracewell J. 2022. Coastal topography change at Gulf Islands National Seashore, Texas: 2018–2021 data summary. Natural Resource Data Series. NPS/GULN/NRDS—2022/1355. National Park Service. Fort Collins, Colorado. https://doi.org/10.36967/nrds-2293377
In the spring of 2018 and 2021, the Gulf Coast Network collected coastal topography data at Gulf Islands National Seashore as a part of the NPS Vital Signs Monitoring Program. Monitoring was conducted following methods detailed in Monitoring Coastal Topography at Gulf Coast Network Parks: Protocol Implementation Plan (PIP; Bracewell 2017). Key findings from this effort are as follows: In Florida, the Perdido Key unit showed higher losses in profile area as well as retreat in dune crest and shoreline position than in the Fort Pickens unit. Because of unfavorable weather conditions and a compressed survey window, six of 16 transects in Mississippi were not surveyed in 2021. The highest rates of loss in profile area on Horn Island were at the western end. Three pilot monitoring transects were added in 2021 at Fort Pickens area, updrift, or east of the Gulf Coast Network's established effort. This expands survey coverage about 3 kilometers (1.9 miles [mi]) and incorporates a portion of the narrower, washover-prone section of the unit. This project is in the early phases of implementation and will benefit from future surveys to better understand the influence of slight changes in survey timing and other environmental variations.
- Type
- Published Report
- Authors
- Bracewell, Jeff
- Date of Issue
- 2022-05
- Publisher
- National Park Service
- DOI
- 10.36967/nrds-2293377
- Units
- GUIS , GULN , NRSS
- Keywords
- coastal dynamics, coastal topography, geomorphology, guis, guln
- Subjects
- Ecological Framework: Geology and Soils | Geomorphology | Coastal/Oceanographic Features and Processes