(1) The amplitude of the diurnal cycle in the core monsoon region is larger than the amplitude of the annual cycle.
(2) There are large-scale shifts in the regions of deep convection during the day from over land to over water.
(3) There is large intraseasonal and interannual variability of the diurnal cycle, but it is not well understood.
(4) Improved monitoring and modeling of the diurnal cycle will go a long way towards improved warm season precipitation forecasts not just for Tier 1, but for Tiers 2 and 3.
DIURNAL VARIABILITY
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