Note:
"Number" in the scatter plot chart is the total (num. of ocean targets + num. of land targets + num. of cloud targets). "Daily" in the chart showing the number of sampled points is the daily number of sampled points for each type of target. The blue, green and black lines show ocean, land and cloud targets, respectively. The calibration coefficients prior to 30 days ago are available because of limitations of the input data acquisition for the radiative transfer calculation.

For technical information on MTSAT visible vicarious calibration, please see the MTSAT Visible Vicarious Calibration Guide.