OpTIS

CTIC has partnered with Applied GeoSolutions and The Nature Conservancy on the development, testing and application of the Operational Tillage Information System (OpTIS), an automated system to map tillage, residue cover, winter cover, and soil health practices using remote sensing data. While OpTIS calculations are performed at the farm-field scale using publicly available data, the privacy of individual producers is fully protected by reporting only spatially-aggregated results at regional and watershed scales. OpTIS-based data are currently available for the years 2005 through 2018 for the States of Illinois, Indiana, and Iowa. Data for these same years across the remainder of the US Corn Belt are scheduled for release in July 2019.
 
Tillage data for years earlier than 2005 are available through the CRM Survey.