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A sampling campaign of size segregated particulate matter (PM0.5, PM0.5–1, PM1–2.5 and PM2.5–10) was carried out at two sites, one in a road tunnel (Braga, Portugal) and another at an urban background location in the neighbourhood. Particle-bound polycyclic aromatic compounds were extracted with organic solvents and analysed by gas chromatography–mass spectrometry. Twenty six parent and alkyl-polycyclic...
Optical and microwave remote sensing data, from the northeastern of Portugal, was used to the discrimination of lithologies outcropping in that region. Classification techniques was applied and from the results it can be concluded that the optical data performed a better discrimination that the radar data. In this last case, a texture analysis shows that the mean (with matrix of 5*5) gave the best...
Remote sensing data from Monte Real sub-basin (onshore West-Central Portugal), collected by the LANDSAT 7 ETM+, JERS-1 (SAR) and Envisat (ASAR) satellites, are used with the purpose to give new insights relatively to the Monte Real salt-structure. The recognized pattern of the diapir and of the structural lineaments is in agreement with the geophysical and geological data.
The lithostratigraphy and the tectonics of Douro region, mainly composed by metasedimentary rocks of Neoproterozoic to Lower Cambrian age, has been studied with support of optical and microwave data collected by the Landsat 7 ETM+, Jers-1 and Envisat satellites. The lithologies already characterized from field data where recognized in the images which also show that they are organized under a normal...
The remote sensing data (optical and radar) was used with the purpose of identify the structural lineaments that crosscut the geological formations that composed the bedrock of the south part of Santiago island (Cape Verde). Besides tectonics, this study also provided new insights to the understanding of the hydrogeological system of the volcanic island.
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