3D Visualization and Analysis 3D Visualization and Analysis of Topographic and Geologic of Topographic and Geologic Oceanographic Data in the NW Oceanographic Data in the NW Aegean Sea Aegean Sea A. Karageorgis, P. Drakopoulou & Chr. Anagnostou A. Karageorgis, P. Drakopoulou & Chr. Anagnostou
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3D Visualization and Analysis of Topographic and Geologic Oceanographic Data in the NW Aegean Sea
3D Visualization and Analysis of Topographic and Geologic Oceanographic Data in the NW Aegean Sea. A. Karageorgis, P. Drakopoulou & Chr. Anagnostou. The EU MAST-III ELOISE Metro-Med project (Contract No: CT 960049). Collects data from the fields:. Physical. Geological. Biological and. - PowerPoint PPT Presentation
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3D Visualization and Analysis of 3D Visualization and Analysis of Topographic and Geologic Oceanographic Topographic and Geologic Oceanographic
Data in the NW Aegean SeaData in the NW Aegean Sea
A. Karageorgis, P. Drakopoulou & Chr. AnagnostouA. Karageorgis, P. Drakopoulou & Chr. Anagnostou
The EU The EU MAST-III ELOISEMAST-III ELOISE Metro-MedMetro-Med project project(Contract No: CT 960049)(Contract No: CT 960049)
Collects data from the fields:
In an effort to organize, analyze, compare and finally to explore
the data set, we have utilized the Arc/Info GIS platform for the
development of an application named “Metro-Med GIS”
• Physical• Geological• Biological and• Chemical Oceanography
Metro-Med Digital Bathymetric Map of the Thermaikos Gulf and the Sporades Basin
Area(km2)
Volume(km3)
Shelf
Basin
Total
5,350 430
5,250 3,570
10,600 4,000
• riverine supply
– proximity to the sources
– water circulation
– bottom topography
• Thessaloniki city supply
• stratification
Factors controlling SPM distribution:
Particle transport and depositionParticle transport and deposition
• transport along the western coast (SE)
• resuspension and deposition mechanisms
closely related to the distance from the river
mouths
• absence of detached layers towards the basin
• shelf acts as a sediment trap
Conclusions
• SPM major sources are the rivers Axios, Aliakmonas and Pineios• SPM input is high only during the “wet” seasons• SPM distribution follows the dominant cyclonic cirulation• SPM settles in the shelf• SPM is mainly terrigenous• Sediments distribution follow in general the bathymetry• Sands in the eastern and central part
• lack of input• circulation patterns
• Silt deposition in fron of the river mouths• Clay deposition in the basin• Resuspension possibilities in the western part