Instructions
Explore interactive elevation profiles from lines you create on the map. This map uses elevation derived from KyFromAbove lidar point clouds (Phase 1). The above-ground layer shows surface elevations, such as buildings and trees. The ground layer shows only bare-earth conditions.
Step 1
Zoom or search for an area of interest. Click New and place two points on the map representing the endpoints of the elevation profile. The app will query the data server for a maximum of ~500 samples, which are spaced evenly along the line. The highest sampling rate (resolution) is 5 ft.
Step 2
The app will store profiles in your browser's local storage, so you can revisit them after refreshing this page. Click Clear to remove all profiles from local storage. A profile can require about 100 KB of storage.
Step 3
The resulting profiles are interactive where you can place spot elevations along the profile on the map. These spot elevations show ground elevation and above-ground surface heights (above the ground elevation).
Step 4
After creating profiles, you can download the data, which includes sample locations, elevations both ground and surface heights, and other attribute data for each profile.
Surface changes have occurred since the elevation data was captured in the early 2010s. This page is a work in progress and best viewed on a desktop computer.
Sources & attribution
Data from KyFromAbove, Kentucky Division of Geographic Information (DGI).
Mapping and visualization from Leaflet, Esri, Turf.js, and Observable Plot
Map layer sources Esri, TomTom, Garmin, FAO, NOAA, USGS, © OpenStreetMap contributors, and the GIS User Community.
Page developed by Boyd Shearer, Department of Geography, University of Kentucky.
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