Figure 1. Visualisation of the cloud top altitude variable from the CTTH product for 2020-01-01 03:00 UTC.
Abstract
The cloud top temperature and height (CTTH), developed within the NWC SAF context, aims to
support nowcasting applications. This product contributes to the analysis and early warning of
thunderstorm development. Other applications include the cloud top height assignment for aviation
forecast activities. The product may also serve as input to mesoscale models.The CTTH product contains information on the cloud top temperature and height for all pixels
identified as cloudy in the satellite scene.Cloud top pressure or height are derived from their IR brightness temperatures by comparison to
simulated IR brightness temperatures computed from temperature and humidity vertical profiles
forecast by NWP using a IR radiative transfer model (RTTOV). Exact retrieval method depends on
cloud type as semi-transparency correction using window and sounding IR channels may be needed.For further information please view the following documents:
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