Indiana Impervious Cover
The Indiana Impervious Cover product is a high-resolution (1 meter) dataset that provides information on built-up cover in Indiana to support different stormwater management and ecological applications. It is derived from color infrared imagery and LIDAR flown between 2011 and 2013 as part of the Indiana Othophotography and LIDAR data acquisition program. For some counties the LIDAR data was acquired between 2007 and 2010. In addition color infrared imagery flown as part of the 2012 National Agriculture Imagery Program (NAIP) was also used to aid the classification process.
What can you do with the Indiana Impervious Cover data?
The Indiana Impervious Cover dataset supports numerous applications for stormwater management, urban planning and for monitoring ecosystem changes.
EarthDefine used a Geographic Object-Based Image Analysis (GEOBIA) processing workflow to create the Indiana Impervious Cover dataset. Multiple ancillary datasets including transportation framework vectors, TIGER demographic data, hydrological, cadastral and terrain data were used along with color infrared aerial imagery to develop an object based classification workflow. Over 839.7 million image-objects were created from over 36,184 square miles of 1m resolution source imagery and classified through our GEOBIA platform to create a 5-class classification with an overall accuracy of 93.3%. The Impervious Cover layer was derived from the base Land Cover data for Indiana to prioritize the classification of man made impermeable surfaces.
Indiana Impervious Cover Overview
|Minimum Mapping Unit||0.005 acre|
|Area||36,184 sq. miles|