Browsing by Issue Date, starting with "2020-03-23"
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- Movimento Aparente Anual do Sol - #1Publication . Equipa CCVAlgPequenos Cientistas em Casa Acompanha as atividades que o Centro Ciência Viva do Algarve publica para poderes fazer em casa. Diverte-te em família, fazendo as nossas atividade e partilha connosco os resultado através de fotografias ou vídeo. #PequenosCientistasEmCasa #PequenosCientistasCCVAlg HOJE : “Movimento Aparente Anual do Sol” A 20 de março, entrámos na primavera, e vamos desafiar-te a descobrir mais sobre como o sol nos permite saber isso! ATENÇÃO!! Não saias de casa para adquirir nenhum destes materiais. Se não os tiveres todos, aguarda pelo nosso próximo desafio! #PequenosCientistasEmCasa #PequenosCientistasCCVAlg #ccvalg #cienciaviva #ficaemcasa #faro #sol #primavera #equinocio
- Composite data set of last glacial Dansgaard/Oeschger events obtained from stable oxygen isotopes in speleothemsPublication . Fohlmeister, Jens; Bores, Niklas; Marwan, Norbert; Columbu, Andrea; Rehfeld, Kira; Sekhon, Natasha; Sime, Louise; Veiga-Pires, C.Millennial scale climate variations called Dansgaard-Oeschger cycles occurred frequently during the last glacial, with their central impact on climate in the North Atlantic region. These events are, for example, well captured by the stable oxygen isotope composition in continental ice from Greenland, but also in records from other regions. Recently, it has been shown that a water isotope enabled general circulation model is able to reproduce those millennial-scale oxygen isotope changes from Greenland (Sime et al., 2019). On a global scale, this isotope-enabled model has not been tested in its performance, as stable oxygen isotope records covering those millennial scale variability were so far missing or not systematically compiled.
- Offshore 1755 CE Lisbon Tsunami deposit in the southern portuguese continental shelfPublication . Kümmerer, Vincent; Drago, Teresa; Veiga-Pires, Cristina; Silva, Pedro; Lopes, Ana; Magalhães, Vitor; Roque, Cristina; Rodrigues, Ana Isabel; Terrinha, Pedro; Mena, Anxo; Francés, Guillermo; Kopf, Achim; Völker, David; Salgueiro, Emilia; Alberto, Ana; C. Lopes, Cristina; Costa, Pedro; Baptista, Maria AnaThe importance of tsunami hazard assessment is only possible if a complete dataset of events is available, allowing the determination of the recurrence intervals of the tsunamis adapted to local and regional conditions. One possible way to know these intervals is to study the offshore sedimentary record, looking for sediment remobilised and transported by the incoming tsunami waves and generated backwash currents. Even if these deposits are not of easy access (and not so well studied), the tsunami depositional signature has potential to be better preserved than those located onshore.