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presents the distribution of the three environments (HM, LM and TF) in C. Tróia (N) at present, in 2050 and 2100. At present, a mature salt marsh (HM/LM = 2.8) fills and dominates the marginal area. In both projections, the total marsh surface decreases, by 2% in 2050 and 60% in 2100. In 2050 the maturity will diminish (HM/LM = 1.4), which, together with the global decrease, shows a considerable regression of the whole marsh, in particular the high marsh. In 2100 the maturity is drastically lower (HM/LM = 0.5), showing inability of the high marsh to keep pace with the rise in sea level (-82.4%), in contrast with the low marsh (-2.6%).
Source publication
The resilience of salt marshes to climate change and sea level rise mainly depends on the balance between sedimentation rates and sea level rise rates. A model was developed to forecast how Caldeira de Tróia salt marsh will respond to that global forcing factor. The results indicate that the salt marsh can tolerate the projected rise in sea level f...
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Citations
Although research focus mostly on high marshes the understanding of sedimentation rates and patterns along the whole intertidal environment is key to improve projection models in different scenarios of sea level rise (SLR). This study presents the results from the analysis of a sediment core collected in a low marsh on the North bank of Caldeira de Tróia. The methodology presented will also be applied in cores from the high marsh, the mudflat and from the South bank. This work was developed under the scope of the project “Climate change, sea level rise and risk of inundation of high intertidal areas”, which aims to build a response model of the Caldeira de Tróia salt marshes to sea level rise.
O conhecimento dos regimes de ondulação de temporal é primordial para mitigar os impactes na zona costeira, mas nem sempre existem dados de agitação medidos com boias ondógrafo junto dos locais de interesse. Este trabalho compara os temporais identificados a partir dos registos da boia de Leixões, a mais próxima da zona costeira de Aveiro/Figueira da Foz, com os das simulações do modelo WAM. Os resultados mostram uma elevada correlação entre os distintos parâmetros estudados indicando a validade da utilização dos dados simulados.
