Clear Sky Radiances - MSG - 0 degree (CF-015 Release 1)

The CSR product is a subset of the information derived during the Scenes Analysis processing. The product provides the brightness temperature for a subset of the MSG channels averaged over all pixels within a processing segment (16x16 pixels) which have been identified as clear (a minimum of 7 clear pixels are needed to compute the average).

For the channel WV6.2 the CSR is also derived for areas containing low-level clouds. The CSR product also contains the fraction of clear sky and the solar zenith angle. The final CSR product is BUFR encoded 3-hourly at every third quarter of the hour (e.g. 00:45, 01:45 ...).