The mid-summer drought spatial variability over Mesoamerica

The region that includes southern Mexico and Central America is known as Mesoamerica. annual cycle of precipitation characteristic the Pacific slope this presents a bimodal distribution on summertime, with two maxima relative intraseasonal minimum, Mid-Summer Drought (MSD). In study, small-scale (tens kilometers) variability MSD analyzed. Numerical simulations are performed using regional climate model RegCM4 over Mesoamerican domain for six-year period. ERA Interim reanalysis data used initial lateral boundary conditions. subdivided into smaller areas average computed each them. pattern found to present high spatial in intensity its even total absence minimum. Such behavior attributed soil-atmosphere terrain topography interactions better resolved model.