Validation of Expanded Trend-to-Trend Cross-Calibration Technique and Its Application to Global Scale

The expanded Trend-to-Trend (T2T) cross-calibration technique has the potential to calibrate two sensors in much less time and provides trends on a daily assessment basis. trend obtained from aids evaluating differences between satellite sensors. Therefore, this was validated with several trusted techniques evaluate its accuracy. Initially, T2T three independent RadCaTS RRV, DIMITRI-PICS, APICS models, results show 1% average difference other models over all bands. Further, SDSU newly launched Landsat 9 8, demonstrating good agreement bands within 0.5%. This also for Terra MODIS ETM+, showing consistency compared four PICS sites. Additionally, applied global scale using EPICS Global gain result 8 versus 7/8, Sentinel 2A/2B, Terra/Aqua presented that these pairs 0.5–1% most of spectral Total uncertainty Monte Carlo Simulation varies 2.5–4% except SWIR2 bands, which vary up 5%. North Africa calculated ratio gain; among them 0.5% level difference.