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Delimitación De Zonas De Alteración Hidrotermal En La Cordillera Volcánica Central De Costa Rica Mediante Imágenes Landsat Y Del Sensor Simulador Master
| Content Provider | Semantic Scholar |
|---|---|
| Author | Bragado, Eduardo Gutiérrez-Solar Y Rejas, Juan Gregorio Marchamalo, Miguel Bonatti, Javier |
| Copyright Year | 2009 |
| Abstract | Costarican Central Volcanic Range presents large volcanic structures of andesitic composition where hydrothermalism and weathering process occurs. Multispectral imagery was used for surface lithologic characterization as well as vegetation cover analysis. Scenes were acquired at different date and by different sensors: TM 1986, ETM+ 2001 and MASTER 2003. This allows a temporal analysis in the surroundings of Poas, Irazu and Turrialba craters. In order to enhance the recognition of hydrothermal and supergenic altered materials, an image fusion was applied for increasing detail in scenes, keeping radiometric information from each pixel unaltered. Several thematic maps were generated, differentiating natural and artificial typical cover from this Costarican volcanic range, as well as main altered materials. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.aet.org.es/congresos/xiii/cal67.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |