Program Info

This dataset provides an initial inventory of approximate locations (within 500 m accuracy) of Surface Elevation Tables (SETs) that are currently installed in coastal wetland ecosystems (e.g., salt marshes, mangrove forests, bottomland hardwood forests) along the U.S. Gulf of Mexico coast. All five U.S. gulf coast states are included: Texas, Louisiana, Mississippi, Alabama, and Florida. This inventory is the result of a cooperative effort between individuals at the NOAA Northern Gulf of Mexico Sentinel Site Cooperative and the USGS National Wetlands Research Center, who worked with scientists from other state, federal, academic, and non-profit organizations to compile this information. Due to their position at the land-sea interface, coastal wetlands are highly sensitive to sea-level change. Measurements of coastal wetland surface elevation change [via the surface elevation table-marker horizon (SET-MH) approach] improve our understanding of the ability (or inability) of coastal wetlands to keep pace with sea-level rise (for more information, see: Cahoon et al. 2002a, Cahoon et al. 2002b, Webb et al. 2012, Callaway et al. 2013). Wetland surface and shallow subsurface processes play an important role to determine vertical movement in coastal wetlands, and measurements made via the SET-MH approach can be used help better model these important processes and predict future coastal wetland change. This inventory provides the foundation for the potential development and/or expansion of SET networks and helps identify local gaps in measurements of coastal wetland sediment elevation change in the northern Gulf of Mexico.
Vertical surface elevation
NERRs Sentinel Site language is different than the NOAA Sentinel Site, which has a very broad definition and is more conceptual. NOAA uses the NERRS as an operational example. Under the NOAA Sentinel Site program, there are 5 Sentinel Site cooperative and ANERR is part of the northern Gulf of Mexico one (these are an unfunded effort to group sites and leverage resources).
Climate change and marsh elevation modeling
Available for public dissemination
surface elevation tables (SETs)
Measurements began in Fall 2012 with 6 SETS in the upper river marsh sites and 6 SETS in the East Bay area. January 2013 the other 8 SETS were started.
Data Location (SETs locations) and internal Access database - requires data request
Data Format
DBF, shapefile
Internal Access Database
RCP Program not part of SEACAR analysis
SEACAR Citation
Alternative Citation

indicates priority attributes

Jenna Harper

Regional Administrator


Kendra Treichel

Environmental Specialist II, Apalachicola Natl. Estuarine Research Reserve

Export Standardized Data

Habitat(s) : Indicator(s) Last Updated File Download

Office of Resilience and Coastal Protection Managed Areas

Apalachicola Bay, Apalachicola NERR


RCP Program not part of SEACAR analysis - Additional Indicators

Documentation and Data provided by program

File Type File Name Added On Details
Data ANERR SET Database ENTER DATA HERE (2).accdb 12/04/18 09:34 AM View Details
Data ANERR SET Database ENTER DATA HERE.accdb 11/09/20 11:57 AM View Details
GIS ANERR Sentinel Site Plan Draft August 2018_B.docx 01/29/19 12:06 PM View Details
Logo ANERR.jpg 12/04/18 09:34 AM View Details
Logo DEP_logo_2019.png 04/08/19 01:57 PM View Details
Protocols ANERR Sentinel Site Plan Draft Nov 2018.docx 12/04/18 09:34 AM View Details
Protocols SETs metadata.docx 11/09/20 11:57 AM View Details