Unit:
Κατεύθυνση Πρόληψη και Διαχείριση των Φυσικών ΚαταστροφώνLibrary of the School of Science
Supervisors info:
Ε. Λέκκας, Καθηγητής ΕΚΠΑ, Ι. Φουντούλης, Αν. Καθηγ. ΕΚΠΑ, Α. Γκανάς, Εντ. Ερευνητής Ε.Α.Α.
Original Title:
Εκτίμηση εδαφικής διάβρωσης και πλημμυρικού κινδύνου στην λεκάνη απορροής του ποταμού Μουργκάνι (Θεσσαλία)
Summary:
The main objective of this research is to estimate interrill erosion after rainfall in the basin of Mourganis river (442 km2; Kalabaka province, Trikala prefecture, Thessaly, Greece). For the estimation of the interrill erosion, the method of Valmis et al. (1988) was used, in combination with Nearing et al. (1989). Input data of the algorithm include the slope angle of the ground surface, the rainfall, the ground cover type, the height of canopy, and the instability of ground of the study area. Soil samples were collected in the field to calibrate the model
Erosion soil maps for two rainfall scenarios, extreme and common type of rainfall, are created. The first rainfall scenario refers to the most extreme rainfall in this catchment that happened on the 7/21/1959 with 48 mm/h. The second scenario is closer to average as the intensity rainfall is 3.54 mm/h. For the analysis of the erosion soil maps is observed that the western part of the Mourgkani basin exhibits higher erosion than the eastern part. In addition, the basins of the Xiropotamos and Gkremos streams have the highest erosion; both basin will be crossed by the new E65 highway. In the basin of the Mourgkani river, the total mass of eroded material ranges from 0.048 t/ha (assuming mean rainfall intensity) up to 3.5 t/ha (for the extreme scenario).
Moreover, a digital spatial database was created. This database includes a spatial data (elevation, cities, hydrographical network, road network, geology, uses of land, data which collect from the field and the results from this research) from the study region.
Main subject category:
Natural disasters
Other subject categories:
Geomorphology
Hydrology
Keywords:
Mourgani basin, Soil erosion, Flood hazard, GIS
File:
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Χριστίνα_Τσιμή.pdf
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File access is restricted only to the intranet of UoA.
