Papers by Alina D David Spinu
ABSTRACT The anthropogenic influences on the Danube Delta Coast, with major effect on the evoluti... more ABSTRACT The anthropogenic influences on the Danube Delta Coast, with major effect on the evolution of its littoral processes are represented by the perturbation of the longshore sediment transport, due to coastal constructions, and as well due to the decrease of solid discharge, as a consequence of the hydro-technical works/dams extension in the reception basin, as well in the main course of the rivers. Certain vulnerable areas of the Danube Delta Coast are strongly influenced by inland works/development as well as Danube flow regime, at regional and local scale. In the Sulina arm area, the extension of the channel jetties had a double effect, representing the cut-off of the south coast current, carrier of a portion of the solid load on the Chilia arm, and removal of its own load out of the coastal circulation in the offshore currents. The sand dunes dynamics including the sediment changes between submerged shore and dunes system are major issues within the channel entrance. The work presents the results on the impacts of the coastal geomorphological processes of the Danube Delta on navigation and ecological areas. Thus, the variability of the sea-land interface, for a period of several decades, has been revisited on the basis of the historical maps, coastal survey of emerged beach profiles, sand dunes and recent GPS measurement, developed on the Romanian Danube Delta littoral, together with certain impact assessments in the delta areas, including the ecosystem response to shoreline variability, sediment transport on short and medium term, in the context in which the major factor is the Danube discharge, as well the sea-level rise.
2014 IEEE/OES Baltic International Symposium (BALTIC), 2014
ABSTRACT The marine and coastal spatial data & information management actions within the ... more ABSTRACT The marine and coastal spatial data & information management actions within the Romanian research & development institutions, formed towards the implementation of Coastal ecosystem based management standards include RS data validation, QC-QD procedure and Web-GIS services. The RS & GIS complementary actions, among other areas, are developed in order to provide a modern scientific and technical instrument toward the extension of an operational informational system. The paper presents certain national consortium actions that are developed as implementing activities of the international/European RS applications to coastal complex waters studies development, including the calibration and validation of RS algorithm extensions, Web-GIS systems/services as support tools for the ICZM implementation process in the Romanian Black Sea area. The results presented in this work are related to the development of a Marine & Coastal GIS able to accommodate the data exchange and integration, from several sources, which, associated in databases, can constitute the engine of a dynamic and efficient decision system for a specific area of the Romanian Coastal Zone based on its case study.
The main objective of the Marine Strategy Framework Directive (MSFD, 2008/56/EC) is to achieve or... more The main objective of the Marine Strategy Framework Directive (MSFD, 2008/56/EC) is to achieve or to establish and maintain the "good environmental status" (GES) until 2020. The Black Sea is one of the fourth marine regions assigned for implementing the MSFD through two countries and EU Member States: Romania and Bulgaria. Through the MSFD Guiding Improvements in the Black Sea Integrated Monitoring System (MISIS Project), for the Romanian waters were defined and delimited the types of the seawater. Using the short and long-term data analysis of the physical parameters (sea currents, temperature and salinity from available data since 1955 – 2012), the main features of the western Black Sea water bodies was characterized. In addition, the corresponding salinity of water bodies in the western Black Sea were evaluated, using the grid points 0.5° x 0.5°, calculating for each quarter from the corresponding number of measured data: the mean, standard deviation and the coefficient...
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Papers by Alina D David Spinu