Poster Title

Sinkhole Mapping of Woodford County Kentucky Utilizing LiDAR

Grade Level at Time of Presentation

Senior

Institution

University of Kentucky

KY House District #

CD 6

KY Senate District #

CD 6

Department

Kentucky Geologic Survey

Abstract

Sinkhole Mapping of Woodford County Kentucky Utilizing LiDAR

Authors: Kalli Beasley and Adam Nolte

Faculty Mentor: Junfeng Zhu

Department: Kentucky Geologic Survey, University of Kentucky

Abstract:

This project utilizes LiDAR (light detection and ranging) in conjunction with GIS (Geographical Information System), aerial photography, and field-checking to delineate, verify, and map sinkholes in Woodford County, Kentucky. LiDAR is a remote-sensing technology that provides detailed topographic maps of the land surface, which are ideal for identifying sinkholes in karst areas. Sinkholes are common geologic hazards that can severely damage buildings, drain farm ponds, damage roads, and wreck farming equipment. In Kentucky, sinkholes cause an estimated $23 million in damages annually.

Woodford County is located in the Bluegrass Region, a karst-dominated terrain, with bedrock consisting of Ordovician limestones and shales. Its land-surface is characterized by sinkholes, springs, underground streams, and caves. Previous mapping of sinkholes using topographic maps identified 1,386 sinkholes in Woodford County. LiDAR detected 2,307 sinkholes, an increase of 937 (41 percent) from the previous effort. This project demonstrates that LiDAR is a highly accurate method for identifying and mapping sinkholes.

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Sinkhole Mapping of Woodford County Kentucky Utilizing LiDAR

Sinkhole Mapping of Woodford County Kentucky Utilizing LiDAR

Authors: Kalli Beasley and Adam Nolte

Faculty Mentor: Junfeng Zhu

Department: Kentucky Geologic Survey, University of Kentucky

Abstract:

This project utilizes LiDAR (light detection and ranging) in conjunction with GIS (Geographical Information System), aerial photography, and field-checking to delineate, verify, and map sinkholes in Woodford County, Kentucky. LiDAR is a remote-sensing technology that provides detailed topographic maps of the land surface, which are ideal for identifying sinkholes in karst areas. Sinkholes are common geologic hazards that can severely damage buildings, drain farm ponds, damage roads, and wreck farming equipment. In Kentucky, sinkholes cause an estimated $23 million in damages annually.

Woodford County is located in the Bluegrass Region, a karst-dominated terrain, with bedrock consisting of Ordovician limestones and shales. Its land-surface is characterized by sinkholes, springs, underground streams, and caves. Previous mapping of sinkholes using topographic maps identified 1,386 sinkholes in Woodford County. LiDAR detected 2,307 sinkholes, an increase of 937 (41 percent) from the previous effort. This project demonstrates that LiDAR is a highly accurate method for identifying and mapping sinkholes.