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St. Petersburg Coastal and Marine Science Center

Data Release

Elevation Data Collected in 2010 from Sabine National Wildlife Refuge, Louisiana

By Julie C. Bernier

Summary

This data release serves as an archive of elevation data collected in August 2010 from Sabine National Wildlife Refuge (SNWR), Louisiana. Point (xyz) elevations were collected from historically formed open-water bodies and the surrounding emergent marsh using a combination of stop-and-go (semi-kinematic) and kinematic differential Global Positioning System (DGPS) surveying techniques. These data were collected as part of the U.S. Geological Survey’s (USGS) Gulf Coast Subsidence project and provide more extensive spatial coverage than water depths and marsh-surface elevations collected along coring transects in 2008 (USGS Open-File Report 2011-1169). The elevation data were used to estimate magnitudes of one-dimensional (vertical) and three-dimensional (volume) accommodation that formed as a result of extensive historical wetland loss in the western chenier plain of coastal Louisiana. All elevation data use the projected coordinate system North American Datum of 1983 (NAD83), Universal Transverse Mercator (UTM) Zone 15 North (15N) and all elevations are North American Vertical Datum of 1988 (NAVD88) orthometric heights, derived using the GEOID09 geoid model.

Data

File Name and Description Metadata (XML format) Metadata (text format) Download File
snwr_elev2010.zip
DGPS point elevation data (.csv, .shp, .kml)
snwr_elev2010-met.xml snwr_elev2010-met.txt snwr_elev2010.zip
(159 KB)

Regional map of Sabine National Wildlife Refuge (SNWR) showing locations of elevation data points collected in 2010.
Regional map of Sabine National Wildlife Refuge (SNWR) showing locations of elevation data points collected in 2010. Background image is digital orthophoto quarter quadrangle (DOQQ) acquired October 2008; display uses infrared band 4.

Suggested Citation

Bernier, J.C., 2017, Elevation Data Collected in 2010 from Sabine National Wildlife Refuge, Louisiana: U.S. Geological Survey data release, https://doi.org/10.5066/F7BR8QBH.

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