CropScape CDL Satellite Crop History

How CDL Works

Landsat 8/9 and Sentinel-2 imagery, supervised classification, 30m resolution, 90%+ accuracy for major crops.

Rotation Pattern Interpretation

Corn-soybean (healthy), continuous corn (yield penalty), corn-soy-wheat (excellent), fallow (investigation needed).

Crop Diversity Index

Shannon/Simpson metrics quantify rotation quality and management stewardship.

CDL Limitations

Sub-field management invisible, cover crops underreported, mixed pixel effects near field edges.