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925 record(s)

 

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From 1 - 10 / 925

  • ASTARTE geophysical campaigns aim to collect the necessary information for the assessment, strategy and risk reduction for Tsunamis in Europe.

  • TAGUSDELTA geophysical campaigns aim to collect the necessary information to elaborate the high resolution 3D seismic stratigraphy of the Tagus Delta.

  • Joint campaigns of the TOPOMED and FREEZE projects sponsored by the Portuguese Foundation for Science and Technology (FCT). These two projects share complementary and objective areas of study. The first focuses on the effects of neotectonics on the evolution of landscape and environments and the second on the investigation of underwater discharges of fresh water.

  • Joint campaigns of the ERSTA and SANDEX projects, the ERSTA project is designed to study seismogenic and tsunamigenic bodies and to prepare a seismotectonic model for the Algarve region, the SANDEX project aims to evaluate the physical impact of sand and gravel extraction on the sedimentary balance and the evolution of the coastline.

  • This project aims to characterize the evolution of the coastline during the Quaternary and discern what were the contributions to this evolution: 1) neotectonic, 2) eustatic variations and 3) sedimentary transport.

  • Marine biotoxins monitoring of bivalve molluscs in classified production areas in mainland Portugal, since 2014, at intervals defined in the respective sampling plan, through the detection and quantification of the various groups of marine biotoxins laid down in Regulation (EC) 853 / 2004 in live bivalve tissues. These analyzes are part of the national monitoring of bivalve molluscs production areas and are considered in the official control system for decision-making concerning health rules applicable to bivalve in the various production areas. The data is collected according to the requirements of Regulation (EC) No 854/2004 of the European Parliament and of the Council of 29 April 2004 and the rules set out in Decree No. 1421/2006 of the Ministries of Economy and Innovation and Agriculture, Rural Development and Fisheries of 21 December 2006.

  • Within Portugal's National Biological Sampling Project (PNAB) a set of activities are conducted in the collection, management and use of biological data, collected from the registered commercial fleet in mainland Portugal (fisheries-dependent data) and several research surveys (independent fisheries data). These activities allow the assessment of the state of fishery resources, population structure, distribution and abundance of resources, diversity and dynamics of biological communities associated with the fishery resources and biological studies (growth, reproduction).The spring acoustic surveys are usually held in April/May with the ship "Noruega" and cover the Portuguese continental waters and the Spanish waters of the Gulf of Cadiz, between 20 and 200m deep.

  • The ERSTA project intended to study the seismogenic and tsunamigenic bodies and prepare an sismotectonic model for the Algarve region. For this project, in this campaign, was intend to carry out a geophysical survey that will contribute to a more detailed characterization, in the offshore region, of São Marcos-Quarteira and Carcavai faults. The SANDEX project aims to evaluate the physical impact from the extraction of sand and gravel in the coastal sediment balance and evolution of the coastline. The campaign aims to collect bathymetric data that will contribute to monitoring of the impact caused by the exploitation of sand deposits carried off the Quarteira as well as for the assessment of sediment budget of the study area.

  • The Tagusdelta campaign had technical and scientific objectives. The main technical objective was to make the proof of concept of the new proposed method for the acquisition of 3D very high resolution seismic reflection data. The accomplishment of this objective included: deployment and data acquisition systems tests; positioning uncertainty assessment; seismic and positioning data processing for the 3D seismic volume generation. From the scientific point of view the main objective was to acquire very high resolution seismic reflection data that allow the characterization of the frontal area of the Tagus ebb-tide delta seismic stratigraphic facies arquitecture. A special focus was placed in the: identification, characterization and mapping of mass wasting features, in order to allow a first trial of the Pleisto-Holocene mapping and chronostratigraphy of these features in the Tagus delta; imaging the morphologies of landslide structures with 3D seismic, particularly in what concerns the landslide already identified with the previous data, to allow the quantification and precise location of the events, to generate data of unprecedented realism that can be fed into the tsunamigenic mathematical models.

  • Identification and enumeration of harmful and potentially toxic phytoplankton species from water samples collected weekly in shellfish production areas, coastal and transition in mainland Portugal since the year 2014. These analyzes are part of the national system of monitoring bivalve mollusc production areas of IPMA and are considered in the zoning and in making decisions regarding their status. The data is collected for the requirements of Regulation (EC) No 854/2004 of the European Parliament and of the Council of 29 April 2004.