THE CLIMATOLOGY OF MESOSCALE CONVECTIVE COMPLEXES IN THE CAMPO MOURÃO REGION - PR

Abstract

In the tropical range, from -20° to -40°, there are deserts in various regions of the planet, except for the east of the South American continent. For this band the climate is subtropical or "transition zone", in which interactions occur between meteorological and geographic elements that contribute to the genesis of Meso-Scalar Convective Complexes (MCC). They manifest in parts of the South American continent, territories of Paraguay, Uruguay, central and northeast Argentina and southern Brazil. MCC are convective cloud clusters, circular in shape with areas of continuous precipitation, sometimes intense and with hailstorms, atmospheric and windy discharges. The period of greatest occurrence of MCC is in the spring and summer seasons. The objective of the research was to quantify the participation of MCC in the states of the meteorological time for the region of Campo Mourão – PR, associating them to the air masses, in order to verify in which of them the MCC are more frequent. The identification of the MCC occurred by reading the satellite images goes-10, and the identification of masses of air, by reading and interpreting the synoptic charts. The temporal cut considered the seasons of spring and summer in the years of 2013/14, neutral year, 2015/16 of El Niño, and 2016/17 of La Niña. The results indicate that MCC in the South of the continent are more frequent in El Niño years, in which rainfall has also increased.