Sinkholes in Hernando County, Florida Photos taken by Tom Scott, Florida Geographic Survey

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Presentation transcript:

Sinkholes in Hernando County, Florida Photos taken by Tom Scott, Florida Geographic Survey Brett Buff GIS in Water Resources November 25, 2008

Objective Investigate the relationship between sinkholes and water Project Location Hernando County, Florida

Sinkholes Sinkholes are common in Florida Hydrogeology is an important factor in their formation Formed from erosion processes associated with acidic water and limestone Can form when water table changes drastically Can create underground drainage systems

Southwest Florida Water Management District (SWFWMD)

Future Work Create Sinkhole Probability Map Analyze DEM from Hernando County using ArcHydro9 Tools

Conclusion Sinkholes are more likely occur where water tables fluctuate more frequently and rapidly then normal Increase in development => Increase in groundwater removal => Increase sinkhole formation

Data Sources USGS Southwest Florida Water Management District Florida Department of Environmental Protection Florida Geological Survey

Eagle’s Nest Sinkhole Located in Northwest Hernando County

330-Foot-Deep Sinkhole In Guatemala City

Questions??? Some more pictures of sinkholes in Florida