@AudiovisualMaterial{MachadoMoraLaurAnge:2004:ClCoPr,
abstract = "This study analyzes the cloud cover, the precipitation and the
thermodynamics features observed in the Southwestern Amazonia
during the pre-wet season. The dataset gathered for this study was
collected during the Radiation, Cloud, and Climate Interactions in
the Amazonia during the dry-to-wet transition season/LBA
(RACCI/LBA) campaign that occurred in September-November of 2002
in Rondonia State. Radiosonde, rainfall data, GOES satellite
images and radar reflectivity CAPPIs from the TECTELCOM ground
weather radar were examined to describe the main characteristics
observed during the beginning of the wet season. Thermodynamic
parameters like, CAPE, moist static energy, CINE, boundary layer
humidity divergence were used to describe the cloud cover and
precipitation evolution from the dry to wet raining season. Larger
CAPE values were found during the pre-wet season than during the
beginning of the regular wet season, however, those events were
less often than during the end of October - beginning of November.
Total cloud cover did not show any clear difference between both
periods. However, convective cloud and rain fraction show a
remarkable increase from one period to another. CAPPI fields from
2 km up to 18 km show differences in the convection intensity
between pre and regular wet season. The cloud cover organization
is also analyzed through the description of the life cycle of
mesoscale convective system from dry to wet and in the regular
raining season. Finally, the diurnal cycle of the thermodynamic
variables and cloud characteristics are also described for both
periods..",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)/CPTEC}",
author = "Machado, Luiz Augusto Toledo and Morales, Carlos Augusto and
Laurent, Henri and Angelis, Carlos Frederico",
city = "Brasilia",
conferencename = "Conferencia Cientifica do LBA, 3.",
date = "27-29 jul.",
keywords = "Amazonia, cloud, precipitation, themodynamics.",
language = "English",
ibi = "sid.inpe.br/ePrint@1905/2005/10.19.18.13",
url = "http://urlib.net/ibi/sid.inpe.br/ePrint@1905/2005/10.19.18.13",
targetfile = "Machado_Dry_to_wet_seasonLBA2004.pdf",
title = "Dry to Wet Season: Cloud cover, precipitation and thermodynamics
features.",
year = "2004",
urlaccessdate = "23 set. 2024"
}