Publication Date:
2017-04-04
Description:
The statistical analysis of stream orientations is an helpful tool in the active tectonic studies because
the rivers network is an important geomorphologic feature useful to derive the deformation due to
active faults. The drainage network automatically derived from DTM’s is not generally usable for
this type of analysis because the automatic routines generate the stream network following the four
direction orthogonal to the cell. In this paper we present a semiautomatic methodology to extract the
drainage network from high resolution DTM data (5x5 pixel m) the most possible consistent with
the real water-drainage pattern, in order to make accurate statistic azimuthal analyses of stream
orientations. The methodology have been tested on the active tectonic area of the Tammaro basin
(Campania and Molise Regions), epicentral zone of the 1688 strong earthquake (MW=6.7). The
results obtained by the application of the proposed methodology show a good agreement with the
drainage pattern map derived from photo-interpretation (Regional Technical Cartography).
Description:
Published
Description:
Centro Congressi Lingotto, Torino
Description:
5.4. TTC - Sistema Informativo Territoriale
Description:
open
Keywords:
drenaggio da DTM
;
deformazione
;
tettonica attiva
;
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
;
05. General::05.01. Computational geophysics::05.01.01. Data processing
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
Conference paper
