GIS Data

Industrial activities causing extensive groundwater contamination led to the listing of the Tucson International Airport Area (TIAA) as a Superfund Site in 1983. Early groundwater investigations identified volatile organic compounds (VOCs), including the chlorinated solvents trichloroethylene (TCE) and perchloroethylene (PCE), in wells in the area. Several responsible parties were...

Thermal map over the Episode 61g lava flow.

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

Thermal map over the Episode 61g lava flow.

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

This map is similar to the map above but shows a thermal map over the Episode 61g lava flow.

This satellite image was captured on Sunday, July 30, by the NASA/USGS Landsat 8 satellite.

Coastal Louisiana wetlands are one of the most critically threatened environments in the United States. These wetlands are in peril because Louisiana currently experiences greater coastal wetland loss than all other States in the contiguous United States combined. The analyses of landscape change presented here have utilized historical surveys, aerial, and satellite data to quantify...

The inland extent of saltwater at the base of the Biscayne aquifer in the Model Land Area of Miami-Dade County, Florida, was mapped in 2011. Since that time, the saltwater interface has continued to move inland. The interface is near several active well fields; therefore, an updated approximation of the inland extent of saltwater and an improved understanding of the rate of movement of...

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.