The MODIS Cloud Multi Layer Flag layer indicates the detection of multi layer clouds from MODIS shortwave observations expressed through 9 categories ranging from single layer cloud to the lowest confidence multi-layer cloud to the highest confidence multi-layer cloud with a range of intermediary confidence levels. This layer is useful for identifying areas of cloud overlap and flagging pixels where cloud microphysical retrievals would be adversely affected by cloud overlap.

The MODIS Cloud Multi Layer Flag layer is available from both the Terra (MOD06) and Aqua (MYD06) satellites for daytime overpasses. The sensor resolution is 1 km, imagery resolution is 1 km, and the temporal resolution is daily.

References: [MODIS Atmosphere - Cloud (06_L2); MODIS Cloud Optical Properties: User Guide for the Collection 6 Level-2 MOD06/MYD06 Product and Associated Level-3 Datasets: July 2018; Cloud Top Properties and Cloud Phase Algorithm Theoretical Basis Document: May 2015