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| Titel |
Geomorphological map of glaciated gorges in a granitic massif (Gredos range,
Central Spain). |
| VerfasserIn |
Néstor Campos, Luis Miguel Tanarro, David Palacios |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250148300
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| Publikation (Nr.) |
 EGU/EGU2017-12543.pdf |
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| Zusammenfassung |
| A detailed geomorphological map on a 1:10,000 scale is presented for a high mountain area
in Gredos range (Iberian Central System), this area is located in a granitic massif 160 km
West of Madrid and comprises three gorges : La Vega, Taheña-Honda and La Nava. Only few
detailed geomorphological maps of the Gredos range are available despite the wide diversity
of landforms, in order to improve the understanding of this zone, this geomorphological map
of the area has been produced, showing in detail the geomorphologic diversity of these
gorges.
The map was created with the aid of 25 cm resolution aerial photographs, 25 cm
resolution satellite images, Iberpix 3D images provided by the Spanish National Geographic
Institute and verified with field work. The landforms were delimitated with a stereoscope and
satellite image pairs and digitized using GIS and CAD software, in some areas 3D glasses has
been used with 3D images and the software Esri ArcScene. The landforms resulting from
interpretation of aerial photographs and satellite images were classified using the IGUL
(Institute of Geography, University of Lausanne) legend system (developed at the end of the
1980s) combined with the legend proposed by Peña et al. (1997) and some personal
adaptations.
The map legend includes 45 landforms divided into seven sections: structural,
hydrography, fluvial, gravitative, glacial, nival and anthropic landforms. The use of both
legend systems allows us to represent the landform types distributed over an area of 40 km2
and to identify the geomorphic processes involved in their morphogenesis, this variety of
processes and landforms identified demonstrated that geomorphological cartography obtained
by combining traditional image interpretation and GIS technology facilitates the production
of geomorphological maps and the obtaining of valuable data for identify and understand
surface processes and landforms.
References:
Maillard, B., Lambiel, C., Martin, S., Pellitero, R., Reynard, E., & Schoeneich, P. (2011).
The ArcGIS version of the geomorphological mapping legend of the University of Lausanne.
Technical report, Université de Lausanne.
Peña, J., Pellicer, F., Chueca, J., & Julián, A. (1997). Leyenda para mapas geomorfológicos a
escalas 1:25.000/1:50.000. In J. L. Peña (Ed.), Cartografía Geomorfológica Básica y
Aplicada. Geoforma Ed. Logroño.
Research funded by Deglaciation project (CGL2015-65813-R), Government of Spain |
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