St. Petersburg Coastal and Marine Science Center
By Terrence A. McCloskey, Christopher G. Smith, Nick J. Zaremba, Elsie C. McBride, and Cheyenne Everhart
Indian River Lagoon, one of the most biologically diverse estuarine systems in the continental United States, is a shallow brackish lagoon stretching along approximately 200 kilometers (km) of the Atlantic coast of central Florida. Lagoon width varies from ~0.5 – 9.0 km, with substantial human infrastructure lining both shores.
Scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) and USGS Caribbean-Florida Water Science Center (CFWSC) in Davies, working in collaboration with the St. Johns River Water Management District (SJRWMD) investigated submarine groundwater discharge at Eau Gallie North, a site along the western shore in the central section of the lagoon, using continuous resistivity profiling (CRP). The CRP array was towed behind a boat along five shore-parallel transects located ~125, 200, 350, 500 and 750 meters offshore and traversing ~1.5 km along north-south transects. Each transect was given a track name (EB., EC., ED., EE., and EF.) and lines were run both north to south and south to north. Repetitive profiles will be collected along these same tracks, at various times, in order to determine temporal variability. As resistivity is a function of both geology and salinity, temporal changes will reflect salinity changes, as the underlying geology will be presumed to remain constant. Resistivity data were assigned geographic coordinates and water depth values, in order to produce modeled resistivity, accounting for salinity and geologic parameters. This data release provides the raw resistivity, geographical, and water parameter data collected in December 2016 and January 2017.
|File Name and Description||Metadata (XML format)||Metadata (text format)||Download File|
Geographical and water column data (.gps, .pdf) collected in December 2016.
Resistivity data (.stg, .pdf) collected in December 2016.
|Same as above||Same as above||12-2016-STG.zip
Geographical and water column data (.gps, .pdf) collected in January 2017.
|Same as above||Same as above||01-2017-GPS.zip
Resistivity data (.stg, .pdf) collected in January 2017.
|Same as above||Same as above||01-2017-STG.zip
EarthImager 2D figures of measured, calculated and inverted resistivity (.jpg, .pdf).
|Same as above||Same as above||Inversion.zip
McCloskey, T.A., Smith, C.G., Zaremba, N.J., McBride, E., and Everhart, C., 2017, Hydrological data concerning submarine groundwater discharge along the western margin of Indian River Lagoon, east-central Florida - December 2016 and January 2017: U.S. Geological Survey data release, https://doi.org/10.5066/F7PZ5725.