| Journal: | Revista geografica academica |
| Database: | PERIÓDICA |
| System number: | 000329034 |
| ISSN: | 1678-7226 |
| Authors: | Hesse, Ralf1 |
| Institutions: | 1Friedrich Schiller University of Jena, Department of Geography, Jena, Thuringen. Alemania |
| Year: | 2008 |
| Volumen: | 2 |
| Number: | 2 |
| Pages: | 5-13 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | The SRTM data set is the highest resolution DEM with global or continental coverage. It is therefore the DEM of choice for continental-scale geomorphological mapping and quantitative analysis. In this study, SRTM data are used for the identification and characterisation of endorheic basins in southern South America (south of 19°S). The results show the feasibility of continental-scale quantitative geomorphology based on SRTM data and provide insights into the distribution of closed basins. The largest endorheic basin is located in the Puna region and consists of several interconnected sub-basins. This basin accounts for 38.6 % (7877 km3) of the total volume of the endorheic basins identified in this study. Analyses of the geographic distribution show a narrow longitudinal distribution between 64.5 and 71.5° W and a multimodal latitudinal distribution which is characterised by two groups of basins at 22.5–27.5°S and 37.5–50.0° S and an almost complete absence of basins between 27.5 and 37.5° S. Problems and sources of misinterpretation arising from data quality and resolution are discussed. Further research, targeting in particular the genesis and potential for paleoenvironmental reconstruction of closed basins in southern Argentina, is called for |
| Disciplines: | Geografía |
| Keyword: | Geografía física, Geomorfología, Cuencas endorreicas, Misión Topográfica Radar Shuttle, América del Sur |
| Keyword: | Geography, Physical geography, Geomorphology, Endorheic basins, Shuttle Radar Topography Mission (SRTM), South America |
| Full text: | Texto completo (Ver PDF) |
