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Earth Syst. Sci. Data, 10, 1185-1195, 2018
https://doi.org/10.5194/essd-10-1185-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
 
22 Jun 2018
Surficial sediment texture database for the south-western Iberian Atlantic margin
Susana Costas, Margarida Ramires, Luisa B. de Sousa, Isabel Mendes, and Oscar Ferreira Centre for Marine and Environmental Research-CIMA, University of Algarve, Faro, 8005-139, Portugal
Abstract. Assessing the impact of changes on the environment driven by natural or anthropogenic forcers includes the comparison between antecedent and post-event conditions. The latter is particularly relevant in order to better understand to which extent those changes actually impact or alter a particular environment and associated services and to determine the resilience of a system. In this regard, it becomes essential to create or provide databases to inform about baseline conditions. Here, we present a database that integrates surficial sediment samples collected and analysed for textural characterization within the framework of a series of research projects over circa 20 years. Collected samples along the south-western Atlantic margin of the Iberian Peninsula extend from estuaries and beaches to the adjacent continental shelf. For the case of the more dynamic environments, namely coastal sandy barriers, samples were repeated over time in order to capture the intrinsic variability of the system. Examples of the utility of this data set for a variety of purposes and environments are also included within this paper through three examples. Therefore, here we show the added value of the database as it can be used to assess the impact of a particular event or activity at an estuary by providing baseline conditions, evaluate the continental shelf sediment suitability for nourishment activities, or contribute to the understanding of the morphodynamics and classification of beaches. Finally, it is worth stating the importance of such databases to analyse medium- to long-term variability as the one induced by sea level rise, changes in storminess, or human activities. The open-access data presented here are at https://doi.org/10.1594/PANGAEA.883104.


Citation: Costas, S., Ramires, M., de Sousa, L. B., Mendes, I., and Ferreira, O.: Surficial sediment texture database for the south-western Iberian Atlantic margin, Earth Syst. Sci. Data, 10, 1185-1195, https://doi.org/10.5194/essd-10-1185-2018, 2018.
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This sample collection presents a database that integrates surficial sediment samples collected and analysed for textural characterization within the framework of a series of research projects. A total of 4727 samples within the framework of 24 projects developed between 1996 and 2015 along the southern Atlantic coast of the Iberian Peninsula, focusing along the Portuguese coast, including sediments from the continental shelf, beaches, estuaries, and coastal lagoons.
This sample collection presents a database that integrates surficial sediment samples collected...
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