Abstract:

This dataset is part of the historical database of water isotopes (δ18O and δD) in surface and bottom waters at eight fixed stations within the Mississippi Sound and Bight. Samples were collected as part of the University of Southern Mississippi project Monitoring and Assessment of Coastal and Marine Ecosystems in the Northern Gulf, which was funded by NOAA through the Northern Gulf Institute. These water isotope data were only collected for the last six months of the project from 2011-06-22 to 2011-11-21 aboard the R/V LeMoyne cruise led by Dr. Kjell Gunderson, Dr. Stephan Howden, and Dr.Kevin Martin. The dataset includes water isotopes (δ18O and δD), salinity, depth, date and location (longitude and latitude) of the sampling collection site. The complete project dataset can be found under GRIIDC Unique Dataset Identifier (UDI) R4.x260.000:0082 (DOI: 10.7266/N77M06C6).

Suggested Citation:

Shiller, Alan M.; Ho, Peng; Gilbert, Melissa; Sanial, Virginie. 2019. Water isotope data collected aboard the R/V LeMoyne for monitoring and assessment of coastal and marine ecosystems in the northern Gulf of Mexico from 2011-06-22 to 2011-11-21. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/n7-jwt7-0p03

Publications:

Sanial, V., Shiller, A., Joung, D. J., & Ho, P. (2019). Extent of Mississippi River water in the Mississippi Bight and Louisiana Shelf based on water isotopes. Estuarine, Coastal and Shelf Science. doi:10.1016/j.ecss.2019.04.030

Purpose:

To investigate the causes of hypoxia and the factors controlling the distribution of various trace elements in the Mississippi Sound and Bight.

Data Parameters and Units:

Station (station #); Date [DD-Mon-YYYY]; Latitude [°N, decimal degrees]; Longitude [°E, decimal degrees]; Depth [m]; Salinity [PSS-78]; δ18O (water) [‰ VSMOW], δD (water) [‰ VSMOW]. The cruise documentation was provided for the R/V LeMoyne cruise. Note: N/A = not applicable, bdl = below detection limit.

Methods:

Information on the analytical procedures pertinent to this dataset can be found in Sanial et al., 2019.

Instruments:

Cavity ring-down spectrometer, Picarro L2120i

Provenance and Historical References:

Sanial, V., Shiller, A., Joung, D. J., & Ho, P. (2019). Extent of Mississippi River water in the Mississippi Bight and Louisiana Shelf based on water isotopes. Estuarine, Coastal and Shelf Science. doi:10.1016/j.ecss.2019.04.030

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