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St. Petersburg Coastal and Marine Science Center

Data Release

Hydrological Data Concerning Submarine Groundwater Discharge Along the Western Margin of Indian River Lagoon, East-Central Florida - December 2016 and January 2017

By Terrence A. McCloskey, Christopher G. Smith, Nick J. Zaremba, Elsie C. McBride, and Cheyenne Everhart

Summary

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.

Data

File Name and Description Metadata (XML format) Metadata (text format) Download File
12-2016-GPS.zip
Geographical and water column data (.gps, .pdf) collected in December 2016.
Metadata-IRL.xml Metadata-IRL.txt 12-2016-GPS.zip
(374 KB)
12-2016-STG.zip
Resistivity data (.stg, .pdf) collected in December 2016.
Same as above Same as above 12-2016-STG.zip
(678 KB)
01-2017-GPS.zip
Geographical and water column data (.gps, .pdf) collected in January 2017.
Same as above Same as above 01-2017-GPS.zip
(407 KB)
01-2017-STG.zip
Resistivity data (.stg, .pdf) collected in January 2017.
Same as above Same as above 01-2017-STG.zip
(1.2 MB)
Supplemental Information
Inversion.zip
EarthImager 2D figures of measured, calculated and inverted resistivity (.jpg, .pdf).
Same as above Same as above Inversion.zip
(16 MB)

Study site location.
Figure 1. Study site location. CRP data was collected on five shore-parallel lines (EB.-EF.) near Eau Gallie North (box, right), located in the central section of the Indian River Lagoon (red box, middle), on the Atlantic Coast of Florida (red box, left). Lines EA. and EG. were not run during these two trips due to water conditions. Line numbers and track names are correlated in a readme file included in all the zip files.

Suggested Citation

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.

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