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Sandra Heleno
Sandra Heleno
Verified email at ist.utl.pt
Title
Cited by
Cited by
Year
A past giant lateral collapse and present-day flank instability of Fogo, Cape Verde Islands
SJ Day, SIN Heleno da Silva, J Fonseca
Journal of Volcanology and Geothermal Research 94 (1-4), 191-218, 1999
1991999
Separation between water and land in SAR images using region-based level sets
M Silveira, S Heleno
IEEE Geoscience and Remote Sensing Letters 6 (3), 471-475, 2009
1592009
Persistent scatterers interferometry detects and measures ground subsidence in Lisbon
SIN Heleno, LGS Oliveira, MJ Henriques, AP Falcão, JNP Lima, ...
Remote Sensing of Environment 115 (8), 2152-2167, 2011
1202011
Monitoring recent changes of vegetation in Fildes Peninsula (King George Island, Antarctica) through satellite imagery guided by UAV surveys
V Miranda, P Pina, S Heleno, G Vieira, C Mora, CEGR Schaefer
Science of the Total Environment 704, 135295, 2020
642020
Semiautomated object-based classification of rain-induced landslides with VHR multispectral images on Madeira Island
S Heleno, M Matias, P Pina, AJ Sousa
Natural Hazards and Earth System Sciences 16 (4), 1035-1048, 2016
442016
Large Holocene earthquakes in the Lower Tagus Valley fault zone, central Portugal
GM Besana-Ostman, SP Vilanova, ES Nemser, A Falcao-Flor, S Heleno, ...
Seismological Research Letters 83 (1), 67-76, 2012
372012
Multiparameter monitoring of Fogo Island, Cape Verde, for volcanic risk mitigation
JFBD Fonseca, BVE Faria, NP Lima, SIN Heleno, C Lazaro, NF d’Oreye, ...
Journal of Volcanology and Geothermal Research 125 (1-2), 39-56, 2003
332003
Fogo Volcano, Cape Verde Islands: seismicity-derived constraints on the mechanism of the 1995 eruption
SINH da Silva, SJ Day, J Fonseca
Journal of volcanology and geothermal research 94 (1-4), 219-231, 1999
331999
Systematic InSAR monitoring of African active volcanic zones: What we have learned in three years, or an harvest beyond our expectations
N d'Oreye, J Fernandez, P Gonzalez, F Kervyn, C Wauthier, ...
2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring …, 2008
312008
Comparison and cross-checking of historical, archaeological and geological evidence for the location and type of historical and sub-historical eruptions of multiple-vent …
SJ Day, JC Carracedo, H Guillou, FJ Pais Pais, ER Badiola, J Fonseca, ...
Geological Society, London, Special Publications 171 (1), 281-306, 2000
292000
Seasonal tropospheric influence on SAR interferograms near the ITCZ–The case of Fogo Volcano and Mount Cameroon
SIN Heleno, C Frischknecht, N d’Oreye, JNP Lima, B Faria, R Wall, ...
Journal of African Earth Sciences 58 (5), 833-856, 2010
282010
The Eastern Lower Tagus Valley Fault Zone in central Portugal: Active faulting in a low-deformation region within a major river environment
C Canora, SP Vilanova, GM Besana-Ostman, J Carvalho, S Heleno, ...
Tectonophysics 660, 117-131, 2015
272015
The 20 February 2010 Madeira Island flash-floods: VHR satellite imagery processing in support of landslide inventory and sediment budget assessment
C Lira, M Lousada, AP Falcão, AB Gonçalves, S Heleno, M Matias, ...
Natural Hazards and Earth System Sciences 13 (3), 709-719, 2013
272013
Assessment of the influence of survey design and processing choices on the accuracy of tree diameter at breast height (DBH) measurements using UAV-based photogrammetry
BM Moreira, G Goyanes, P Pina, O Vassilev, S Heleno
Drones 5 (2), 43, 2021
242021
Hydroacoustic detection of volcanic ocean-island earthquakes
G Helffrich, SIN Heleno, B Faria, JFBD Fonseca
Geophysical Journal International 167 (3), 1529-1536, 2006
222006
A seismological investigation of the Fogo Volcano, Cape Verde Islands: preliminary results
SIN Heleno, J Fonseca
Volcanol. Seismol 20, 199-217, 1999
211999
Water/land segmentation in SAR images using level sets
M Silveira, S Heleno
2008 15th IEEE International Conference on Image Processing, 1896-1899, 2008
202008
Calibration of 2D hydraulic inundation models in the floodplain region of the lower Tagus River
R Pestana, M Matias, R Canelas, A Araújo, D Roque, E Van Zeller, ...
Proceedings of the ESA Living Planet Symposium, Edimburgh, UK, 9-13, 2013
172013
Observations of high-frequency harmonic tremor in Fogo, Cape Verde Islands
SIN Heleno, BVE Faria, Z Bandomo, JFBD Fonseca
Journal of volcanology and geothermal research 158 (3-4), 361-379, 2006
172006
Methodology to combine topography and bathymetry data sets for hydrodynamic simulations: Case of tagus river
AP Falcão, MP Matias, R Pestana, AB Gonçalves, S Heleno
Journal of Surveying Engineering 142 (4), 05016005, 2016
132016
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