CalHypsoUn programa para extraer curvas hipsométricas y sus momentos estadísticos en ArcGIS. Ejemplo de aplicación en Sierra Nevada, SE de España
- 1 Dpto. Geodinámica, Universidad de Granada
ISSN: 1576-5172
Année de publication: 2008
Titre de la publication: VII Congreso Geológico de España
Número: 10
Pages: 1227-1230
Type: Article
D'autres publications dans: Geotemas (Madrid)
Résumé
We present the GIS extension CalHypso to automatically extract multiple hypsometric curves from digital elevation models (DEM). This extension is programmed in Visual Basic 6 and uses the ArcObjects architecture of ArcGIS. It employs a new and easier methodology to extract the hypsometric curve by using the integer data-model properties of ArcGIS and summations algorithms. This provides an optimal integration within the program environment, allowing the representation and comparison of curves directly within the GIS main program. The CalHypso extension can also calculate the main statistics related with the hypsometric curve by applying polynomial fits. We have tested this tool in several basins of the eastern border of the Sierra Nevada dome, showing important differences in the north- and south-slope hypsometric curves.