VIMHEX 1972 Revisited: The Life Cycles of two Tropical Convective Mesosystems over Land
artículo original
Fecha
1998Autor
Fernández Rojas, Walter
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The evolutions of two slow-moving convective mesosysterns
observed in Venezuela during VIMHEX-II were
studied using time changes in radar echo characteristics.
The duration of the echo, maximum echo area, maximum
echo height and mean echo velocity were about 6 hours,
5000 km a, 16 kin, and 95~ m s -1 for mesosystem A and
about 11 hours, 12000kin 2, 14kin, and 90~ -1, for
mesosystem B, respectively. The rainfall distributions
associated with the mesosystems are described and correlated
with the radar echo characteristics. The synoptic
conditions are discussed, as well as the modification of the
environment produced by the mesosystems.
The relative wind profiles suggest that mesosystem A
behaved more like a typical tropical squall line, with inflow
at almost all levels at the front of the mesosystem, while
mesosystem B behaved like a typical mid-latitude squall
line, with inflow at lower levels and outflow at upper levels
at the front of the mesosystem.
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- Meteorología [509]