CLAVRx is the CLouds from AVHRR Extended processing system.CLAVRx is an operational cloud processing system for the AVHRR. CLAVRx also can process MODIS,VIIRS,MSG/SEVIRI, COMS, and HIMAWAR-8/9. More detail about CLAVRx in NOAA STAR website ( cimss.ssec.wise.edu/clavrx ). This website shows all the varialbes of CLAVRx process from HIMAWARI-8 obeservation. Click the vaible name in PRODUCTS LIST can get the Varible attributes, full disk image and histogram form a sample date ( clavrx_H08_20190101_0830.level2.hdf ).