@InProceedings{AlbrechtSilv:2004:MiEvTr,
author = "Albrecht, Rachel Ifanger and Silva Dias, Maria
Assun{\c{c}}{\~a}o Faus da",
affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
title = "Microphysical evidence of the transition between predominant
convective/stratiform rainfall associated to the large-scale
variability of precipitation in Southwest Amazon",
booktitle = "Resumos...",
year = "2004",
organization = "Conferencia Cientifica do LBA, 3.",
abstract = "The distinction between convective and stratiform precipitation
profiles around various precipitating systems existent in tropical
regions is very important to the global atmospheric circulation,
which is extremely sensitive to vertical latent heating
distribution. In South America, the convective activity responds
to the Intraseasonal Oscillation (OIS). This work analyzes data
from a disdrometer, a radar profiler and a polarimetric radar,
installed in the Ji-Paran{\'a} airport, RO, Brazil, for the field
experiment WETAMC/LBA \& TRMM/LBA, in January and February of
1999. The methodology is based on the partion of the precipitation
into convective and stratiform, and the classification of
hydometeors by fuzzy logic systems. The microphysical analysis of
the periods with the presence or the absence of the South Atlantic
Convergence Zone (ZCAS), associated to the IOS, showed a large
difference in type, size and microphysical processes of
hydrometeor growth in each wind regime: periods without a ZCAS
presented more intense convection, leading strong processes of the
precipitation growth in both convective and stratiform types;
during periods with a well stabilished ZCAS, there were small
precipitating systems, with a less convective feature, similary to
those from monsoon regions in their ative phase.",
conference-location = "Brasilia",
conference-year = "27-29 jul.",
label = "self-archiving-INPE-MCTIC-GOV-BR",
language = "en",
organisation = "LBA",
targetfile = "albrecht_microphysical.pdf",
urlaccessdate = "29 jun. 2024"
}