Bastos, RosárioPereira, Olegário Nelson AzevedoDias, João Alveirinho2022-07-142022-07-142021http://hdl.handle.net/10400.2/12030As we retreat into historical time, the attempt to reconstruct past climates and their impact in the ecosystems becomes increasingly complex. This study makes a correlation between solar radiation and the growth of a sandy spit that allowed the formation of the Aveiro’s lagoon. Knowing the controversy surrounding the use of a single proxy for the definition of phenomena as complex as climate fluctuations, whenever possible, a link is established between the average rates of annual progression of the sandy spit with the known data of the NAO (North Atlantic Oscillation) and the great climatic periods. A more intense pace of development is found during the Medieval Warm Period, that is fallen to a speed of about half during the Little Ice Age.engClimateSolar radiationNorth coast PortugueseCoastal morph dynamicsjournal articlehttps://doi.org/10.20935/AL3436