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- Projections of maximum tidal inundation limits of estuaries and lagoons of the south Algarve, forced by mean sea level rise: RCP8.5 scenarioPublication . Sampath, Dissanayake; Boski, Tomasz; Moura, Delminda; Veiga-Pires, C.In the present study, we adopted the Hybrid Estuarine Sedimentation Model to simulate the estuarine and lagoon evolution in the South Algarve region due to projected mean sea level rise (MSLR) and sediment deficit scenarios during the 21st century. Thus, we forecasted morphological evolution of six large and medium size estuaries (Guadiana Alcantarilha, Arade, Gilão, Quarteira River, Alvor and a coastal lagoon system (Ria Formosa lagoon) due to the imposed scenarios of MSLR. The projected digital elevation models were used to identify the maximum tidal limits of each system by the year 2100. According to the results, in all cases, saltmarsh habitats and sand flats will be affected severely in response to upper-limit of RCP8.5 scenario of MSLR by 2100. The conjugation of the increase of the mud-flat area and the decrease of saltmarshes will result in the reduction of habitats and then of biodiversity. Habitats associated with the Ria Formosa coastal lagoon and the Guadiana estuary are highly vulnerable to the worst case scenario of MSLR (90 cm higher relative to the year 2011). Agricultural and aquaculture areas in all study areas will be affected due to the landward translation limits of the intertidal areas. Accordingly, it would be advisable to adopt measures to minimize the socioeconomic impacts and loss of ecosystem services in the South Algarve due to climate change driven MSLR during the 21st century and beyond while taking adaptation actions to prevent the loss of environmentally sensitive habitats like salt marshes and sand dunes.
- A history with many millions of years. From the Tethys Ocean to the Barrocal of the AlgarvePublication . Moura, Delminda; Oliveira, SóniaThis book resulted from a challenge by the Mayor of the City Council of Albufeira, José Carlos Rolo, to produce a scientific-pedagogical document that would reveal the mysteries of the Escarpão Plateau and surrounding region to a diverse audience. Luís Pereira, from the Mayor's support office, a tireless apprentice of geology with unshakable enthusiasm, traveled with us along all the paths of the Plateau and adjacent lands. Together we have experienced fantastic adventures!
- Uma janela educativa para o oceano Jurássico - o Planalto do EscarpãoPublication . Oliveira, Sónia; Veiga-Pires, C.; Moura, Delminda; Pereira, L.Situado na região mais a sudoeste da Europa, o aspirante a Geoparque Mundial da Unesco Algarvensis (aUGGp Algarvensis) é um território identitário e inspirador que visa contribuir para uma maior coesão social e territorial dos concelhos de Loulé, Silves e Albufeira, através de uma política de valorização do território, baseada no conceito de Geoparque UNESCO, com o apoio da Universidade do Algarve. O aUGGp Algarvensis possui um património geológico de relevo internacional e nacional sobre uma área territorial com cerca de 1381 km2 , e pertencente a três concelhos do Algarve central. O Projeto coliderado pela Universidade do Algarve e o Centro de Investigação Marinha e Ambiental (CIMA|Arnet-Ualg) alia uma estratégia de geoconservação e um conjunto de políticas de educação e sensibilização ambiental, à promoção de um desenvolvimento socioeconómico sustentável baseado em atividades de geoturismo, envolvendo as comunidades locais e contribuindo para a valorização e promoção dos produtos locais. Esta estratégia de desenvolvimento sustentável conjugada à geologia da região permitiu definir os limites do aUGGp Algarvensis, formando um território coeso que não se estende até ao mar e que tem 48,8 % da sua área constituída por freguesias consideradas com baixa densidade populacional. O seu território e as suas paisagens cromáticas são os testemunhos de uma história geológica que conta o nascimento e aplanamento de cadeias montanhosas (Pérmico e Triásico) e mares antigos (Carbonífero e Jurássico), e se estende desde muito antes dos continentes terem a sua configuração atual, ou mesmo dos dinossauros existirem, até aos dias de hoje (Quaternário). As paisagens superficiais e subterrâneas do território do aUGGp Algarvensis escondem uma grande geodiversidade de geossítios, cujo levantamento e inventariação ainda se encontram em curso.
- Introdução do livro À descoberta da Ria FormosaPublication . Moura, Delminda; Mendes, Isabel; Aníbal, JaimeA Ria Formosa localiza-se na região mais meridional de Portugal, no litoral sul do Algarve e é uma das zonas húmidas socioeconómica e ecologicamente mais importantes de Portugal continental. Em 1978, a importância ecológica da Ria Formosa foi consagrada através do Decreto-lei 45/78 de 2 de maio, com o estatuto de Reserva Natural. No entanto, quase uma década depois, o estatuto foi alterado para Parque Natural da Ria Formosa (PNRF) pelo Decreto-lei 373/87 de 9 de dezembro. Esta alteração teve como objetivo compatibilizar a proteção deste importante sistema lagunar, com as atividades socioeconómicas que aí se desenvolvem. Os reconhecidos méritos de raridade, valor científico, ecológico e social da Ria Formosa, fazem com que esteja integrada na Rede Nacional de Áreas Protegidas, que lhe concede o estatuto legal de proteção para garantir a preservação da biodiversidade e serviços ecossistémicos bem como do seu património geológico e paisagístico.
- Uma História com muitos milhões de anos. Do oceano Tethys ao barrocal do AlgarvePublication . Moura, Delminda; Oliveira, SóniaCada lugar encerra em si a história do tempo que a precede e a do mundo que envolveu. Este foi o ponto de partida das autoras para este olhar sobre o Planalto do Escarpão. Escolheram um lugar onde as rochas nos falam de mais de 150 milhões de anos de acontecimentos geoló gicos e onde o mundo da tectónica de placas ditou as regras e deixou os seus traços. Através de uma viagem pelo tempo e pelo espaço, esta trabalho conta-nos como se formou esse planalto, desde as rochas que ali encontramos até aos vales que nelas se encaixaram.
- The Escarpão Plateau (South of Portugal) - A study case of nesting geosites from the aspiring algarvensis geoparkPublication . Veiga-Pires, Cristina; Oliveira, Sónia; Moura, Delminda; Pereira, LuísLocated along the southern limit of the aspiring algarvensis UGGp, the Escarpão Plateau is a singular geomorphological structure sculpted by the conjugation of fluvial, karst and tectonic processes. The plateau is deeply scarved by the Quarteira Rivulet forming a valley that crosses the most complete sedimentary sequence of the Upper Jurassic of the Eastern Algarve (161,2 to 145,5 million years).
- The evolution of the European framework for coastal management, linked to the new environmental challenges. The Portuguese casePublication . Oliveira, Sónia; Moura, Delminda; Boski, T.The sharing of space by various human activities leading to social conflicts and threats to ecosystems, alongside increased awareness of the threats to coastal zones has created the need to legislate on coastal planning and integrated management by developing international guidelines. A new management challenge has emerged due to climate change that had not previously been considered in legislation or policies. Therefore, the European tools and frameworks applied in Portugal, their implementation and effectiveness will be analysed. Extensive bibliographic data was analysed including EU directives and policies, and Portuguese governmental documents from national to a municipal level. We found that all the European Union guidelines and frameworks are being implemented in the Portuguese Governmental planning and are very well substantiated, whereas the base of all land management instruments (IGT), have a questionable implementation, mainly due to the number of entities involved and the long implementation process.
- Cliff vulnerability assessment on rocky coasts in southern Portugal.Publication . Moura, Delminda; Cristina, SóniaRocky cliffs are widely distributed around the world’s coasts and are subject to natural and anthropogenic pressures. The coastal evolution and erosional processes of the southern Algarve coast in Portugal have been previously studied. However, a detailed analysis of the relationship between lithological characteristics and cliff vulnerability to erosion is lacking. Therefore, in this work we focused on lithological facies variation and structures of the cliffs from Olhos de Água to Albandeira. We combined a variety of data, including those derived from traditional field-based and laboratory analysis, remote sensing (UAV image analysis) and photogrammetry. We identified multiple key forcers concerning cliff vulnerability to erosion: high vertical facies variation, intense karstification, multiple notches and marine caves. Furthermore, our lab analysis revealed differences in CaCO3 content for each lithofacies, resulting in alternating rock strength and leading to the formation of multiple structural notches into the cliff face. A classification of cliff vulnerability was developed based on a combination of these lithological and geomorphological factors. The sector Arrifes - Galé was classified as most vulnerable; Sector Galé - Armação de Pêra Bay was classified as least vulnerable in the study area.
- Multiproxy characterization of high energy layers in the nner continental shelf of Quarteira (Southern Portugal) - Preliminary resultsPublication . Santos, Jacqueline; Drago, Teresa; Moura, Delminda; Magalhães, Vitor; Roque, Cristina; Silva, Pedro F.; Rodrigues, Ana Isabel; Terrinha, Pedro; Anxo, Mena; Francés, Guillermo; Lopes, Ana; Alberto, Ana; Baptista, Maria AnaThe occurrence of sedimentary layers indicating high energy events is common in the continental shelves sedimentary record. Their presence has been usually related either to tsunami waves or storm waves. In both cases, the identification of the transport mechanism requires a variety of proxies. This work presents the preliminary results of the analysis of a gravity core (MW-107) collected at ca. 57 m water depth in the inner continental shelf of Quarteira (Algarve) and aims to identify potential high energy events.
- Paleolandscape evolution along the coasts of the Baixo Alentejo (Portugal) during the quaternaryPublication . Goy, J.L.; Roquero, E.; Zazo, C.; Moura, Delminda; Dabrio, C.J.; Boski, Tomasz; Martínez-Graña, A.; Lario, J.; Bardají, T.A detailed geomorphological mapping allowed to understand the complex relationships interplayed between local tectonics and sedimentation across the coastal area of the Baixo Alentejo (Portugal) all along the Quaternary. Different outcrops of coastal sediments between Sines and Vilanova de Milfontes permitted to reconstruct a general sequence of up to fifteen stair-cased marine terraces, while wide sequences of alluvial fans develop in the hinterland. The distinct geomorphological disposition of these alluvial fans together with the presence/absence of marine terraces, have allowed to define different phases of paleolandscape evolution based both in sea level changes and differential uplift. A dune system has been attributed to MIS 5e in basis of OSL, and C-14 and U-series dating permitted the adscription of a beach unit to MIS 5. These data allowed to stablish the relative chronology of the entire marine terrace sequence and to determine the vertical movement rates along the studied coastal area. The results give values ranging from slight uplift (+0.015mm/a) to subtle subsidence (-0.030 mm/a), coinciding with other author's determinations.