Banca de DEFESA: FERNANDA MARIA DA ROSA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : FERNANDA MARIA DA ROSA
DATA : 18/07/2020
HORA: 09:30
LOCAL: Forma Remota
TÍTULO:

Spectro-temporal analysis of anthropic interference in water production in the Guarani Aquifer

PALAVRAS-CHAVES:

Water security. Multiple uses. Remote sensing.

PÁGINAS: 158
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
SUBÁREA: Geofísica
ESPECIALIDADE: Sensoriamento Remoto
RESUMO:

The Guarani Aquifer System (SAG) is one of the largest freshwater reservoirs in the world, and
has been widely explored due to the quantity and quality of stored water, mainly in the outcrop and
recharge areas where the aquifer is free (not confined). The outcrop and recharge areas are considered
to be highly vulnerable and changes in land use and the activities carried out can impact the recharge
potential and cause changes in water quality. The State of São Paulo is located under one of the outcrop
and recharge areas and due to the high population density in the area covered, it is subject to constant
transformations due to urban, industrial and agricultural expansion. The spectral-temporal analyzes of
anthropic interference in water production were carried out in four delimited areas, located in the
municipalities of Boa Esperança do Sul, Bofete, Brotas and São Simão, in the period from 2012 to 2018.
The rain index was obtained through of the CHIRPS system. The actual evapotranspiration rate was
obtained using the MODIS Sensor. The information on lithology and piezometric level was obtained
through RIMAS of the Geological Service of Brazil. Hypsometric maps were made from images from the
ALOS / Sensor Palsar satellite. The recharge estimates were performed using the computer program
ESPERE, using the WTF (Water Table Fluctuation) method. The variables of land use (forest, exposed soil,
anthropic use and water courses) were obtained through the Normalized Index for Fraction Difference
proposed by Souza et al. (2005) supported by the Linear Spectral Mixing Model (MLME) algorithm
through images from the Landsat 8 Satellite / OLI Sensor. Boxplot statistical analysis, canonical variables
and Pearson's correlation, were performed using software R. The study areas showed significant
anthropization. The study area located in the municipality of Boa Esperança do Sul presented a
significant area with exposed soil, one of the smallest forest areas, one of the lowest evapotranspirative
rates, and the lowest recharge potential. The study area located in the municipality of Bofete, presented
the smallest area of exposed soil, one of the largest forest areas, high evapotranspirative rate and the
greatest recharge potential. The study area located in the municipality of Brotas had one of the smallest
forest areas, the lowest evapotranspirative rate and one of the lowest recharge potentials. The
municipality of São Simão, despite having a forest area with a median higher than the municipality of
Bofete, had a significantly lower evapotranspiration rate, and had the second highest recharge potential.
This work is presented as a methodological suggestion for researchers and professionals in the area of
water resources who are interested in carrying out similar studies in other areas of outcrop of the SAG.
The study aims to contribute as technical support for the decision making of the National Water
Resources Management System (SINGREH) and with the provisions of State Law No. 9866/1997, in order
to contribute to the sustainability of the Guarani Aquifer System.

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