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Pedro Cabral  - - - 
Top co-authors See all
Marco Painho

72 shared publications

NOVA Information Management School, Universidade Nova de Lisboa, Lisboa, Portugal

Telmo R. Cunha

36 shared publications

University of Aveiro

Pedro M. Lavrador

12 shared publications

Instituto de Telecommunicacoes, Universidade de Aveiro, 3810‐193 Aveiro, Portugal

Yikalo H. Araya

3 shared publications

Department of Geography, York University, Toronto, Canada

Gabriela Augusto

2 shared publications

Publication Record
Distribution of Articles published per year 
(1999 - 2018)
Total number of journals
published in
Publications See all
PREPRINT 1 Read 0 Citations Satellite Image Fusion to Detect Changing Surface Permeability and Emerging Urban Heat Islands in a Fast-Growing City Rajchandar Padmanaban, Pedro Cabral, Avit K Bhowmik Published: 21 August 2018
doi: 10.20944/preprints201808.0388.v1
DOI See at publisher website ABS Show/hide abstract
Rapid and extensive urbanization has adversely impacted humans and ecological entities in the recent decades through a decrease in surface permeability and the emergence of urban heat islands (UHI). While detailed and continuous assessments of surface permeability and UHI are crucial for urban planning and management of landuse zones, they have mostly involved time consuming and expensive field studies, and single sensor derived large scale aerial and satellite imageries. We demonstrated the advantage of fusing imageries from multiple sensors for landuse and landcover (LULC) change assessments as well as for assessing surface permeability and UHI emergence in Tirunelveli, Tamilnadu, India. Cartosat-2 and Landsat-7 ETM+ imageries from 2007 and 2017 were fused and classified using a Rotation Forest (RF), while surface permeability and temperature were quantified using Soil-Adjusted Vegetation Index (SAVI) and Land Surface Temperature (LST) index, respectively. Fused images exhibited higher classification accuracies than non-fused images, i.e. overall kappa coefficient values 0.83 and 0.75, respectively. We observed an overall increase of 20 km2 (45%) in the coverage of urban (dry, real estate plots and built-up) areas, while a decrease of 27 km2 (37%) for vegetated (cropland and forest) areas in Tirunelveli between 2007 and 2017. The SAVI values indicated an extensive decrease in surface permeability for Tirunelveli overall (0.4) and also for almost all LULC zones. The LST values exhibited an associated overall increase (1.30C) of surface temperature in Tirunelveli with the highest increase (2.40C) for urban built-up areas between 2007 and 2017. The SAVI-LST combined metric depicted the Southeastern built-up areas in Tirunelveli as a potential UHI hotspot, while a caution for the Western riparian zone for UHI emergence in 2017. Our results provide important metrics for surface permeability and UHI monitoring, and inform urban and zonal planning authorities about the advantages of satellite image fusion.
Article 1 Read 0 Citations Eco-friendly 3D-Routing: A GIS based 3D-Routing-Model to estimate and reduce CO2-emissions of distribution transports Marc Schröder, Pedro Cabral Published: 01 August 2018
Computers, Environment and Urban Systems, doi: 10.1016/j.compenvurbsys.2018.08.002
DOI See at publisher website
Article 3 Reads 1 Citation Assessment of changes in ecosystem service monetary values in Mozambique Sérgio Niquisse, Pedro Cabral Published: 01 March 2018
Environmental Development, doi: 10.1016/j.envdev.2017.09.003
DOI See at publisher website
Article 0 Reads 0 Citations Efficiency Degradation Analysis in Wideband Power Amplifiers Luis Cotimos Nunes, Diogo R. Barros, Pedro M. Cabral, Jose C... Published: 01 January 2018
IEEE Transactions on Microwave Theory and Techniques, doi: 10.1109/tmtt.2018.2871199
DOI See at publisher website
Article 0 Reads 0 Citations #099 Tecnologia CAD/CAM pelos Médicos Dentistas formados em Portugal Pedro Cabral, Filipe Miguel Araújo, Nuno Rosa, André Correia Published: 30 December 2017
Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial, doi: 10.24873/j.rpemd.2017.12.122
DOI See at publisher website
Article 0 Reads 2 Citations A Remote Sensing Approach to Environmental Monitoring in a Reclaimed Mine Area Rajchandar Padmanaban, Avit K. Bhowmik, Pedro Cabral Published: 10 December 2017
ISPRS International Journal of Geo-Information, doi: 10.3390/ijgi6120401
DOI See at publisher website ABS Show/hide abstract
Mining for resources extraction may lead to geological and associated environmental changes due to ground movements, collision with mining cavities, and deformation of aquifers. Geological changes may continue in a reclaimed mine area, and the deformed aquifers may entail a breakdown of substrates and an increase in ground water tables, which may cause surface area inundation. Consequently, a reclaimed mine area may experience surface area collapse, i.e., subsidence, and degradation of vegetation productivity. Thus, monitoring short-term landscape dynamics in a reclaimed mine area may provide important information on the long-term geological and environmental impacts of mining activities. We studied landscape dynamics in Kirchheller Heide, Germany, which experienced extensive soil movement due to longwall mining without stowing, using Landsat imageries between 2013 and 2016. A Random Forest image classification technique was applied to analyze land-use and landcover dynamics, and the growth of wetland areas was assessed using a Spectral Mixture Analysis (SMA). We also analyzed the changes in vegetation productivity using a Normalized Difference Vegetation Index (NDVI). We observed a 19.9% growth of wetland area within four years, with 87.2% growth in the coverage of two major waterbodies in the reclaimed mine area. NDVI values indicate that the productivity of 66.5% of vegetation of the Kirchheller Heide was degraded due to changes in ground water tables and surface flooding. Our results inform environmental management and mining reclamation authorities about the subsidence spots and priority mitigation areas from land surface and vegetation degradation in Kirchheller Heide.