Abstract
Hydrological indexes calculation requires the existence of spatial data such as the drainage network, the hydrological basin and the contours. For the Greek territory this data can be extracted from the topographic maps of the Hellenic Military Geographical Service (HMGS) or from remote sensing data. In this study the suitability and the accuracy of spatial information derived from remote sensing data are controlled with reference to the respective information from the topographic maps of 1/50.000. DSM from ALOS, CARTOSAT and airphoto stereopairs has been used for the extraction of the contours, the drainage network, the hydrological basin and the calculation of three hydrological indexes namely frequency, density and basin slope. Two areas with different physiographical and hydrogeological characteristics were selected. The first area is Antiparos Island and the second one is in Chalkidiki Peninsula.
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Nikolakopoulos, K., Gioti, E. (2011). Suitability of DSM derived from remote sensing data for hydrological analysis with reference to the topographic maps of 1/50000. In: Lambrakis, N., Stournaras, G., Katsanou, K. (eds) Advances in the Research of Aquatic Environment. Environmental Earth Sciences. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19902-8_13
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DOI: https://doi.org/10.1007/978-3-642-19902-8_13
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-19901-1
Online ISBN: 978-3-642-19902-8
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