4.3. 'IPF Compatible Products' Tab Pane (QWG mode)

Figure 4.3. 'IPF Compatible Products' Tab Pane in QWG mode

If MEPIX is run in QWG mode, the 'IPF Compatible Products' tab pane provides additional components (Figure 4.3):

'P1 Pressure Threshold': Text field to set the threshold for P1 pressure used for cloud detection. Default is 125 hPa.
'PScatt Pressure Threshold': Text field to set the threshold for PScatt pressure used for cloud detection. Default is 700 hPa.
'RhoTOA442 Threshold': Text field to set the threshold for RhoTOA at 442nm used for cloud detection. Default is 0.185.
'User Defined Delta RhoTOA442 Threshold': Text field to set the threshold for the delta on the threshold of RhoTOA at 442nm used for cloud detection. Default is 0.03.
'RhoTOA753 Threshold': Text field to set the threshold for for RhoTOA at 442nm used for cloud detection. Default is 0.1.
'RhoTOA Ratio 753/775 Threshold': Text field to set the threshold for the RhoTOA ratio 753nm/775nm used for cloud detection. Default is 0.15.
'MDSI Threshold': Text field to set the MDSI threshold used for cloud detection.

See [2] for details on the usage of these thresholds in MERIS cloud detection algorithm.