@Article{PalhariniViRoPaMaUn:2022:AnExRa,
author = "Palharini, Rayana and Vila, Daniel Alejandro and Rodrigues,
Daniele and Palharini, Rodrigo and Mattos, Enrique and Undurraga,
Eduardo",
affiliation = "{Research Center for Integrated Disaster Risk Management
(CIGIDEN)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}
and {Universidade Federal de Piau{\'{\i}} (UFPI)} and {Federico
Santa Mar{\'{\i}}a Technical University} and {Universidade
Federal de Itajub{\'a} (UNIFEI)} and {Research Center for
Integrated Disaster Risk Management (CIGIDEN)}",
title = "Analysis of Extreme Rainfall and Natural Disasters Events Using
Satellite Precipitation Products in Different Regions of Brazil",
journal = "Atmosphere",
year = "2022",
volume = "13",
number = "10",
pages = "e1680",
month = "Oct.",
keywords = "extreme events, natural disasters, precipitation, satellite.",
abstract = "The number of natural disasters triggered by extreme events is
increasing worldwide and significantly impacts modern society.
Extreme rainfall is one of the most important factors contributing
to these events. A better understanding of the physical process
that causes extreme rainfall can allow rapid responses from
decision-makers to lessen the impact of natural disasters on the
local population. Satellite monitoring is widely used for this
purpose and is essential for regions where terrestrial
observations are limited or non-existent. The primary purpose of
this study is to describe the performance of satellite products
for extreme rainfall events that caused natural disasters in
various climate regimes in Brazil and discuss the contribution of
mesoscale convective systems (MCS) to these events. We defined
regions based on the climatological rainfall distribution. Cases
with rain values above the 99th percentile during 20122016 were
considered statistically extreme. Our analysis is based on three
datasets, with precipitation from (i) rain gauge stations, (ii)
different satellite-based estimates, and (iii) mesoscale
convective tracking data. The methodology was based on identifying
extreme rainfall events, analyzing the performance of satellite
precipitation estimates and, finally, quantifying the influence of
convective systems on extreme rain. Although all regions of Brazil
may be affected by natural disasters caused by extreme rains, the
results suggest that the impacts caused in each region are
different in magnitude. Convective systems explained over 90% of
extreme rains in the case analyzed in Brazils south and about 60%
to 90% of extreme rains in the case analyzed in the Northeast. In
general, satellite products have identified rain events; however,
in the southern region of Brazil, products have tended to
overestimate rainfall, while other regions have tended to
underestimate extreme rain values. The methods used in satellite
precipitation estimation products have limitations to accurately
identifying specific extreme rain events.",
doi = "10.3390/atmos13101680",
url = "http://dx.doi.org/10.3390/atmos13101680",
issn = "2073-4433",
language = "en",
targetfile = "atmosphere-13-01680-v2.pdf",
urlaccessdate = "06 maio 2024"
}