How much the TM calibration accuracy is improved when product is processed in using the lifetime model?
The revised calibration of L5 TM sensors will improve absolute calibration accuracy, consistency over time, and consistency with Landsat-7 (L7) Enhanced Thematic Mapper Plus (ETM+) data.The absolute accuracy of TM instrument with the lifetime look-up-table (LUT) gain model is now estimated to be within 5% for all solar reflective bands. This compares very favourably in comparison to the 20% accuracy achieved previously using pre-launch based calibration.
