By Wenjie Wang, GIS Specialist at the University of Illinois Urbana-Champaign
Height Modernization (ILHMP) LiDAR Data [Illinois])
https://geo.btaa.org/catalog/0f26df9b-15b9-4877-b235-55ed19e20d66
What is the item?
ILHMP has established data sharing agreements to archive and distribute elevation data for select Illinois counties. Data have been acquired using Light Detection And Ranging (LiDAR) technology, in compliance with different contract specifications. Data are offered as originally deliver LAS tile or as the derivative product of DEM/DTM or DSM.
What BTAA Library submitted the item?
Illinois Geospatial Data Clearinghouse
Interesting tidbits
- Historically, Digital Elevation Model (DEM) data for Illinois have been mainly based on 5- to 10-foot contour data. Large-scale, digital topographic maps are most common; many data resources contain elevation information acquired in the 1920s and 1930s. DEM data collections are now being developed based on data with a contour resolution of 2 feet to 6 inches. A comparison between older data and newer high-resolution data shows remarkable improvement in recorded detail.
- This data can be useful in different research topics, such as transportation, flooding, water resource management, and so on.
- Figure 1. Illinois Height Modernization (ILHMP): LiDAR Data ViewerFigure 2. Part of the LAS Tiles: Champaign, IL, 2020
Where can I find out more?
- Illinois Climate Network: Soil Data: https://clearinghouse.isgs.illinois.edu/data/climate/illinois-climate-network-soil-data. Hourly and daily data are available for soil temperatures (under sod and bare) and moisture levels.
- Illinois Climate Network: Weather Data: https://clearinghouse.isgs.illinois.edu/data/climate/illinois-climate-network-weather-data. Hourly and daily data are available from 1989 to the present