Abstract:

This dataset was developed to communicate the socio-economic consequences of flooding within the 1% and 0.2% Annual Exceedance Probability Floodplain (AEP) under 4 sea-level rise (SLR) scenarios. Assessment methods primarily used HAZUS-MH software, a GIS-based modeling tool developed by the Federal Emergency Management Agency, to estimate the physical, economic, and social impacts of natural disasters. The dataset includes point files describing impacts to essential facilities and wastewater treatment facilities, line files highlighting road exposure to storm surge, and polygon files summarizing displayed people, shelter needs, and the economic impacts of storm surge flooding on buildings, vehicles, roads, bridges, and crops. The SLR scenarios include 0.2 m, 0.5 m, 1.2 m, and 2.0 m for the year 2100.

Suggested Citation:

Del Angel Diana C., David Yoskowitz, Matthew Bilskie, and Scott Hagen. 2022. Socioeconomic risk associated with the 1% and 0.2% return period Stillwater flood elevation under sea-level rise for the northern Gulf of Mexico. Distributed by: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC), Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/V8T1M61X

Publications:

Del Angel, D., Yoskowitz, D., Bilskie, M., & Hagen, S. (2022). A Socioeconomic Dataset of the Risk Associated with the 1% and 0.2% Return Period Stillwater Flood Elevation under Sea-Level Rise for the Northern Gulf of Mexico. Data, 7(6), 71. https://doi.org/10.3390/data7060071

Purpose:

This dataset is intended for geographic representation and analysis of potential socioeconomic losses due to storm surge flooding under present-day and future sea-level rise scenarios. These data map community features, facilities, and zones that will likely be impacted. Data is intended to inform state, regional, and local governments planning flood loss mitigation and emergency preparedness.

Data Parameters and Units:

Damage to facilities (percent), loss associated with flooding damage or exposure (dollars), Displaced people (count), people in need of shelter (count), length of exposed roads (km/mi).

Methods:

This study used HAZUS-MH software (version 4.2.3) to assess a portion of the socio-economic consequences of storm surge under SLR. HAZUS is a GIS-based modeling tool developed in the 1990s by the Federal Emergency Management Agency (FEMA) and the Multi-hazard Loss Estimation Program of the National Institute of Building Sciences to estimate physical, economic, and financial social consequences of natural disasters. Analysis performed using HAZUS are building and content losses; damage to bridges, essential facilities, wastewater treatment facilities, and vehicles; and displacement of people. Additional analyses performed outside of HAZUS include exposure to roads and crops. Storm surge inundation data is represented by Stillwater floodplains as developed by Bilskie et al. (2019) and can be accessed at gomsurge.com.

Instruments:

HAZUS-MH software (version 4.2.3)

Provenance and Historical References:

Bilskie, Matthew V., Scott C. Hagen, and Jennifer L. Irish. 2019. Development of return period Stillwater floodplains for the northern Gulf of Mexico under the coastal dynamics of sea level rise. Journal of Waterway, Port, Coastal, Ocean Eng. DOI: 10.1061/(ASCE)WW.1943-5460.0000468.

Individual Files: