Science Center Objects

The purpose of this section is to draw your attention to important information that the CFWSC are conducting in your city.   

Using Heat as a Tracer to Determine Groundwater Seepage in the Indian River Lagoon, Florida, April–November 2017

Cover for Open-File Report 2018–1151

Cover. Photograph showing Indian River Lagoon looking north towards Eau Gallie, Florida.


The U.S. Geological Survey, in cooperation with the St. Johns River Water Management District, conducted a study to examine water fluxes in two small study areas in the Indian River Lagoon. Vertical arrays of temperature sensors were placed at multiple locations in the lagoon bed to measure temperature time series in the vertical profile. These data at one of the study areas, Eau Gallie, were used in two numerical models, 1DTempPro and VFLUX, to estimate seepage flux rates into the lagoon. 1DTempPro uses an inverse-modeling approach to calibrate groundwater flux to the measured temperature time series. VFLUX isolates the fundamental frequency signal in the temperature data and utilizes the resulting amplitude and phase differences between sensor locations to determine vertical water flux.    Find out more











USGS Is Installing 20 Storm-Tide Sensors Along Puerto Rican Coast for Isaac

USGS hydrologic technician, installs a storm surge sensor.

Félix Ramos, USGS hydrologic technician, installs a storm surge sensor in Aguirre, Puerto Rico.


Hurricane response crews from the U.S. Geological Survey are installing storm-tide sensors at key locations in Puerto Rico from Cabo Rojo to Naguabo in advance of Hurricane Isaac. Under a mission assignment from the Federal Emergency Management Agency, the USGS plans to deploy about 20 sensors along the island’s coast

Storm surge is among the most dangerous natural hazards unleashed by hurricanes, with the capacity to destroy homes and businesses, wipe out roads, bridges, water and sewer systems, and profoundly alter coastal landscapes. The USGS has experts on these hazards, state-of-the-science computer models for forecasting coastal change, and sophisticated equipment for monitoring actual flood and tide conditions.

The sensors being installed to measure Hurricane Isaac’s storm tide are housed in vented steel pipes a few inches wide and about a foot long. They are being installed on bridges, piers, and other structures that have a good chance of surviving the storm. The information the sensors collect will help define the depth and duration of a storm surge,  See more