Diurnal variations during the Australian Monsoon Experiment (AMEX) Phase II

The tropical cloudiness, as inferred from satellite and radar data, averaged over the entire period of AMEX Phase II, was at a maximum during the morning over the ocean and during the late afternoon over the Arnhem Land region of northern Australia. The diurnal variation in high cloud, as measured by satellite was 3:2 over the ocean and 4:1 over Arnhem Land. Radar data indicated a 10:1 variation in convection over Armhem Land, a 2:1 variation over the neighboring ocean and a 3:2 variation in the stratiform echoes over both Arnhem Land and the neighboring ocean. -from Authors