@Article{SantosEichMatoHerd:2020:AnSiWe,
author = "Santos, Aline Luara dos and Eichholz, Cristiano Wickboldt and
Matos, Enrique Vieira and Herdies, Dirceu Lu{\'{\i}}s",
affiliation = "{Universidade Federal de Itajub{\'a} (UNIFEI)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal
de Itajub{\'a} (UNIFEI)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "Analysis of significant weather events during
chuva-goamazon2014/15 experiments / Article)(Open Access)
[An{\'a}lise de eventos de tempo significativo atuantes durante
os experimentos chuva-goamazon2014/15",
journal = "Anu{\'a}rio do Instituto de Geoci{\^e}ncias",
year = "2020",
volume = "43",
number = "2",
pages = "33--43",
keywords = "Convec{\c{c}}{\~a}o, Precipita{\c{c}}{\~a}o, Eventos Extremos,
Convection, Precipitation, Extreme Events.",
abstract = "Este trabalho avaliou as diferen{\c{c}}as f{\'{\i}}sicas e
termodin{\^a}micas entre os sistemas precipitantes das
esta{\c{c}}{\~o}es seca, chuvosa e de transi{\c{c}}{\~a}o que
atuaram na regi{\~a}o de Manaus/AM durante os experimentos
CHUVA-GOAmazon2014/15. Foram empregados dados de refletividade do
radar Banda-S de Manaus e {\'{\i}}ndices meteorol{\'o}gicos
calculados a partir de radiossondagens. Ao todo 4961 sistemas
precipitantes foram identificados e rastreados atrav{\'e}s do
algoritmo Forecasting and Tracking the Evolution of Cloud Clusters
(ForTraCC), para os quais foram calculados a taxa de
precipita{\c{c}}{\~a}o, tamanho e tempo de vida. Atrav{\'e}s da
metodologia baseada em percentis foram definidos os Eventos de
Tempo Significativo (ETS). Esses eventos s{\~a}o aqueles que
apresentaram, estatisticamente os maiores valores (> percentil de
90 %) de taxa de precipita{\c{c}}{\~a}o, tamanho e tempo de vida
dos sistemas precipitantes. Os resultados mostraram que, embora a
esta{\c{c}}{\~a}o chuvosa apresente maior conte{\'u}do de
{\'a}gua precipit{\'a}vel e acumulados de chuva, os sistemas
precipitantes da esta{\c{c}}{\~a}o seca foram os que
apresentaram maiores taxas de precipita{\c{c}}{\~a}o e, por
isso, maior potencial para o desenvolvimento de eventos severos.
De forma geral, uma maior quantidade de ETS ocorreram durante as
esta{\c{c}}{\~o}es de transi{\c{c}}{\~a}o e seca,
per{\'{\i}}odo com menor umidade atmosf{\'e}rica, mas grandes
valores de energia potencial dispon{\'{\i}}vel para
convec{\c{c}}{\~a}o, energia de inibi{\c{c}}{\~a}o convectiva
e cisalhamento vertical do vento, o que contribuiu para processos
convectivos mais intensos e duradouros. ABSTRACT: This work
evaluated the physical and thermodynamic differences between the
precipitating systems of the dry, rainy and transition seasons in
the Manaus/AM region during the CHUVA-GOAmazon2014/15 experiments.
Reflectivity data from Manaus Banda-S radar and meteorological
indexes calculated from the radiosonde were used. Approximately
4961 precipitating systems were identified and tracked using the
Forecasting and Tracking the Evolution of Cloud Clusters
(ForTraCC) algorithm and the precipitation rate, size and life
span were calculated. Through the percentile methodology (> 90 %),
Significant Weather Events (SWE) were defined. These events are
those that presented, statistically, the highest values of
precipitation rate, size and lifetime of the precipitating
systems. The results showed that, although the rainy season has a
higher content of precipitable water and accumulated rain, the dry
season precipitating systems were the ones with the highest
precipitation rates and, therefore, the greatest potential for the
development of severe events. In general, a greater number of
cases of SWE occurred during the transition and dry seasons, a
period with less atmospheric humidity, but high values of
potential energy available for convection, convective inhibition
energy and vertical wind shear, which contributed to more intense
and lasting convective processes.",
doi = "10.11137/2020_2_33_43",
url = "http://dx.doi.org/10.11137/2020_2_33_43",
issn = "0101-9759",
language = "pt",
targetfile = "santos_analise.pdf",
urlaccessdate = "25 abr. 2024"
}