scholarly journals Spatial and temporal characterization of the exposure of island-associated cetacean populations to whale-watching in Madeira Island (NE Atlantic)

2021 ◽  
pp. 102084
Author(s):  
Annalisa Sambolino ◽  
Filipe Alves ◽  
Marc Fernandez ◽  
Anja Badenas Krakauer ◽  
Rita Ferreira ◽  
...  
2021 ◽  
Author(s):  
John M. Millett ◽  
Dougal A. Jerram ◽  
Ben Manton ◽  
Sverre Planke ◽  
Peter Ablard ◽  
...  
Keyword(s):  

2019 ◽  
Vol 151 ◽  
pp. 104780 ◽  
Author(s):  
Estefanía Pereira Pinto ◽  
Susana Margarida Rodrigues ◽  
Neide Gouveia ◽  
Viriato Timóteo ◽  
Pedro Reis Costa

2011 ◽  
Vol 11 (3) ◽  
pp. 807-817 ◽  
Author(s):  
H. T. Nguyen ◽  
T. M. Fernandez-Steeger ◽  
T. Wiatr ◽  
D. Rodrigues ◽  
R. Azzam

Abstract. This study focuses on the adoption of a modern, widely-used Terrestrial Laser Scanner (TLS) application to investigate volcanic rock slopes in Ribeira de João Gomes valley (Funchal, Madeira island). The TLS data acquisition in May and December 2008 provided information for a characterization of the volcanic environment, detailed structural analysis and detection of potentially unstable rock masses on a slope. Using this information, it was possible to determine specific parameters for numerical rockfall simulations such as average block size, shape or potential sources. By including additional data, such as surface roughness, the results from numerical rockfall simulations allowed us to classify different hazardous areas based on run-out distances, frequency of impacts and related kinetic energy. Afterwards, a monitoring of hazardous areas can be performed in order to establish a rockfall inventory.


2017 ◽  
Vol 190 ◽  
pp. 150-156 ◽  
Author(s):  
Joana Vasconcelos ◽  
Graça Faria ◽  
Rita Freitas ◽  
Leonel Serrano Gordo

2001 ◽  
Vol 65 (4) ◽  
pp. 383-392 ◽  
Author(s):  
Filipe M. A. Alves ◽  
Luís M. Chícharo ◽  
Ester Serrao ◽  
Antonio D. Abreu

Author(s):  
Sergio Lousada ◽  
Rafael Camacho ◽  
Joao Gouveia

The present study aims to create an artificial beach in the municipality of Machico, as well as its complementary infrastructures, located on the south-eastern coast, in the municipality of Machico (Madeira Island). Machico´s beach sand consists of a mixture of black volcanic sand and round basalt stones. Usually, it has clear waters and a quiet sea. This beach also has a mooring infrastructure, thus allowing access to the sea. To achieve this study's main goals, it was initially carried out an extensive review and bibliographic research. Subsequently, a sand beach and its shelter groins were simulated and designed to hypothetically promote the retention of the sand and mitigate the tidal effects. In addition to model the beach dynamics, an extensive characterization of the extreme maritime regime was performed. A descriptive memory, a set of project execution plans, the construction contract documents/special technical conditions, the corresponding budget, and the Health and Safety Plan, were elaborated to complement this project. Some final remarks and conclusions were then presented, as well as some future projects that should be developed to deepen the knowledge of its main subjects.


2009 ◽  
Vol 87 (4) ◽  
pp. 429-436 ◽  
Author(s):  
Pedro Costa Branco ◽  
Paula C. Castilho ◽  
Maria Fernanda Rosa ◽  
Juan Ferreira

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