Banca de DEFESA: ANA PAULA DAMASCENO SOUZA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ANA PAULA DAMASCENO SOUZA
DATA : 18/07/2020
HORA: 07:30
LOCAL: Forma Remota
TÍTULO:

IMPACT ON WATER QUALITY AFTER THE DAM DISRUPTION OF THE FEIJÃO STREAM IN BRUMADINHO (MG) THROUGH ORBITAL SENSORS

PALAVRAS-CHAVES:

Remote sensing; medium spatial resolution images; chlorophyll-a; turbidity; total solids in
suspension; carbon flow.

PÁGINAS: 83
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
SUBÁREA: Geofísica
ESPECIALIDADE: Sensoriamento Remoto
RESUMO:

According to the 2017 Dam Safety Report, in Brazil there are 24,092 structures registered as
dams, 76% of which do not have enough information under the National Dam Safety Policy. The State of
Minas Gerais, is responsible for approximately 44% of all the value generated by the exploration of
mineral activity in the country. The rupture of the Brumadinho Dam, in the metropolitan region of Belo
Horizonte, occurred on January 25, 2019, causing one of the biggest crimes of environmental impact
with mining waste, affecting not only areas of dense vegetation but also the main river of the
municipality, Paraopeba. The objective of this work was to identify and analyze the spatiality of the
impacted area by means of orbital remote sensing, using spectral bands to detect the local water quality,
due to the factors that caused the disaster of the tailings dam rupture. Córrego do Feijão mine in
Brumadinho - MG, by means of remote sensing between the periods of 2018 and 2019. A bibliographic
review was carried out about consultation with academic databases and the use of medium spatial
resolution Orbital Images data processed through the Landsat 8 (OLI) and Sentinel-2 (MSI) platform, in
addition to computational tools through the QGis software, for data synthesis and production. The
variables that constituted the analyzes related to the water quality in this work were: chlorophyll-a,
turbidity, total suspended solids and carbon. After the selection of the mapped points, the concentration
values were checked and tabulated, in order to obtain the variation of the degree (low / medium / high)
of the concentration points in limnological regions of the Paraopeba River basin.

MEMBROS DA BANCA:
Presidente - 265126001 - Carlos Antonio da Silva Junior
Interno - 83168001 - FATIMA APARECIDA DA SILVA IOCCA
Externo à Instituição - GUILHERME FERNANDO CAPRISTO SILVA - UFMT
Externo à Instituição - RAFAEL COLL DELGADO - UFRRJ