This data release is an archive of sedimentary field and laboratory analytical data collected in Grand Bay, Alabama/Mississippi from 2014-2016 by scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC). This work, a component of the SPCMSC’s Sea-level and Storm Impacts on Estuarine Environments and Shorelines (SSIEES) project, provides the necessary data to quantify sedimentation rates and sediment sources for the marsh and estuary. The SSIEES project objective is to evaluate the exchange of sediment material between the marsh and estuary due to extreme storms and sea-level rise. Micropaleontological data from select cores and surface samples are available in Haller and others (2018, https://doi.org/10.5066/F7MC8X5F
. Single-beam bathymetry of Grand Bay proper and multi-beam bathymetry of several marsh-edge eroding shorelines are reported in Dewitt and others (2017, https://doi.org/10.3133/ds1070
) and Stalk and others (2018, https://doi.org/10.5066/F7MC8Z9N)
, respectively. Subbottom and sidescan sonar data for Grand Bay proper are reported in Locker and others (2018, https://doi.org/10.5066/P9374DKQ)
This publication includes data for the sediment cores and surface sediments taken in Grand Bay marsh and estuary during five sampling periods of this study, which were designated as USGS Field Activity Numbers (FAN) 2014-323-FA (project ID 14CCT01), 2015-315-FA (project ID 15CCT02), 2016-331-FA (project ID 16CCT03), 2016-348-FA (project ID 16CCT04), and 2016-358-FA (project ID 16CCT07). Data products include: GPS-derived site locations and elevations; core photographs,logs, and x-radiographs; lithologic, radiochemical, elemental composition, stable isotopic composition, and radiocarbon data; and Federal Geographic Data Committee (FGDC) metadata.
Dissemination of field data and laboratory analytical data from surficial sediments collected from Grand Bay marsh and estuary, Alabama/Mississippi between May-June 2015 (USGS FAN 2015-315-FA, project ID 15CCT02).
Funding for this survey was provided by the USGS Coastal and Marine Geology Program’s SSIEES project (https://coastal.er.usgs.gov/ssiees/)
. Concurrent with sediment sample collection, the SPCMSC scientists conducted a single-beam bathymetry survey in the Grand Bay estuary and adjacent tidal creeks. Additionally, subbottom and sidescan sonar data was collected in Grand Bay proper. The bathymetric data is available in DeWitt and others, 2017. The subbottom and sidescan sonar data is available in Locker and others, 2018. The authors would like to acknowledge the assistance of Nancy DeWitt, Cathryn Wheaton, and Chelsea Stalk in field data and sediment sample collection. The authors also acknowledge Cathryn Wheaton, Shelby Stoneburner, and Elsie McBride for their assistance with laboratory sample analysis. We would also like to thank Alisha Ellis for pre-release commentary and peer review of this report.