@Article{TemporimGaPaMuSiSa:2018:CaStIr,
author = "Temporim, Filipe Alto{\'e} and Gama, F{\'a}bio Furlan and
Paradella, Waldir Renato and Mura, Jos{\'e} Cl{\'a}udio and
Silva, Guilherme Greg{\'o}rio and Santos, Athos Ribeiro",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Spatiotemporal monitoring of surface motions using DInSAR
techniques integrated with geological information: a case study of
an iron mine in the Amazon region using TerraSAR-X and RADARSAT-2
data",
journal = "Environmental Earth Sciences",
year = "2018",
volume = "77",
number = "19",
pages = "e688",
month = "Oct.",
keywords = "TerraSAR-X · RADARSAT-2 · DInSAR time series · Persistent
scatterer interferometry · N5E iron mine.",
abstract = "Instabilities are extremely common in the iron open-pit mines
located in the Caraj{\'a}s mineral province, the world´s largest
iron reserves located in the Brazilian Amazon. Due to deep
excavations in rock products of low geomechanical quality, heavy
precipitation, and blasting practices, mining operations in the
area present surface displacements that potentially lead to slope
instabilities with several risks (personnel, equipment, mining
infrastructure, etc.). This paper presents the results related to
the N5E mine based on DInSAR Time Series (DTS) and Persistent
Scatterer Interferometry (PSI) using a temporal series of 33
StripMap TerraSAR-X (SM TSX) images, and geological information
provided from a 3D photointerpretation of an SM TSX and Ultra-Fine
RADARSAT-2 (UF RST) stereo-pair, calibrated with field data.
Measurement point (DTS, PSI) results were compared with in situ
geodetic survey information (total station/prism measurements) and
showed good agreement indicating that most of the mine can be
considered stable during the period of the TSX coverage. The
highest accumulated displacements were spatially related to a
thematic unit mapped as a landfill. For other sectors of the mine,
lower deformation rates were related to photointerpreted
lineaments related to the Caraj{\'a}s fault system suggesting
that geological structures can play a key role in controlling some
surface displacements. The investigation demonstrated that the
strategy based on the use of DTS and PSI techniques integrated
with geological data provided a synoptic view of the deformation
process that affected the mine. The approach was relevant for
ground displacements monitoring of the study area with DInSAR
results compared with in situ geodetic measurements showing good
statistical correlation.",
doi = "10.1007/s12665-018-7871-y",
url = "http://dx.doi.org/10.1007/s12665-018-7871-y",
issn = "1866-6280",
language = "en",
targetfile = "temporim_spatiotemporal.pdf",
urlaccessdate = "15 jun. 2024"
}