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errors in the amplitude and phase of MERRA’s diurnal cycle of precipitation that are further exasperated by shortcomings in MERRA’s radiation scheme. Basically, MERRA’s precipitation rates are lower than observed, tending toward long-lasting “drizzle,” and the diurnal cycle is weighted toward midday. In reality, observations often show nighttime precipitation maxima. During precipitation events, the incoming solar radiation is not sufficiently reduced. The result is that the canopy interception
errors in the amplitude and phase of MERRA’s diurnal cycle of precipitation that are further exasperated by shortcomings in MERRA’s radiation scheme. Basically, MERRA’s precipitation rates are lower than observed, tending toward long-lasting “drizzle,” and the diurnal cycle is weighted toward midday. In reality, observations often show nighttime precipitation maxima. During precipitation events, the incoming solar radiation is not sufficiently reduced. The result is that the canopy interception
