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summary: Sinkhole maps derived from LiDAR data using ArcGIS versions 10.1 and higher.
tags: ["LiDAR","sinkhole","Kentucky","DEM","Bullitt","Jefferson","Oldham"]
snippet: Sinkhole maps derived from LiDAR data using ArcGIS versions 10.1 and higher.
type: Map Service
url:
accessInformation: Kentucky Geological Survey
guid: 66CB335E-04FD-41F9-A682-1C0A75D07CE6
title: Kentucky LiDAR Sinkholes
catalogPath:
thumbnail: thumbnail/thumbnail.png
extent: [[-85.9344085887824,37.8327472674197],[-85.2956485646019,38.514375090081]]
description: The sinkhole maps are derived from LiDAR data using ArcGIS versions 10.1 and higher. LiDAR data were used to create digital elevation model (DEMs). Surface depressions were then extracted from the DEMs and visually inspected for sinkholes. Field verification suggests that the accuracy of the identified sinkholes to be real sinkholes is over 85%. The data provided here are provisional and updates will be provided if needed. LiDAR data were provided by the Louisville/Jefferson County Information Consortium (LOJIC) through Kentucky Division of Geographic Information. The LiDAR were flew in August, 2009 and the average point spacing is 1.0 meter. DEMs were created using LAS Class 2 surface with 5 feet resolution. Update in August, 2015: The sinkhole coverage for the areas of Bullitt, Jefferson, and Oldham counties that are outside the Floyds Fork watershed were added. Note that the coverage does not cover the Fort Knox military installation.
name: LiDAR_Sinkholes
licenseInfo:
typeKeywords: ["Data","Service","Map Service","ArcGIS Server"]
spatialReference: NAD_1983_StatePlane_Kentucky_North_FIPS_1601_Feet
culture: en-US