Lithologic identification and characterization using ETM+ (Landsat 7). Study case of the Upsala glacier basin, Argentine
The object of this study aims to evaluate and analyze digital image processing techniques applied to the Enhanced Thematic Mapper Plus (ETM+), in order to demark and characterize the outcropping lithologies on the Upsala Glacier basin, Santa Cruz, Argentine Republic. The prolific technological and s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Universitat Politécnica de Valencia
2016-06-01
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| Series: | Revista de Teledetección |
| Subjects: | |
| Online Access: | http://polipapers.upv.es/index.php/raet/article/view/4482 |
| _version_ | 1811197711158870016 |
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| author | A. Lo Vecchio M. G. Lenzano S. Richiano L. E. Lenzano |
| author_facet | A. Lo Vecchio M. G. Lenzano S. Richiano L. E. Lenzano |
| author_sort | A. Lo Vecchio |
| collection | DOAJ |
| description | The object of this study aims to evaluate and analyze digital image processing techniques applied to the Enhanced Thematic Mapper Plus (ETM+), in order to demark and characterize the outcropping lithologies on the Upsala Glacier basin, Santa Cruz, Argentine Republic. The prolific technological and spatial development experienced in the last decades has given place to the generation, without precedents, of multiple remote sensors capable of capturing information of the terrestrial surface and also the improvement of digital image processing techniques and software; amongst them, the amazing possibilities in the detection and differentiation of diverse covers present on the terrestrial surface can be highlighted, such as glaciers, volcanoes, vegetation, soils, water, types of rock outcrops, etc. This situation improves mapping and monitoring of natural phenomenon in the Earth Sciences field. The proposed methodology includes radiometric corrections, elimination of unwanted covers, statistical evaluation in the combination of the most appropriate bands, application of the Z index, discretization of the statistical series, entailing tasks of spectral classification with field samples and a later validation. Valuable results were obtained by means of digital processing of images, that were validated yielding a 82% of accuracy in the proposed classification, which are good results taking into account the diversity of covers present and the lithological heterogeneity that makes up each pixel (30m). These results were also validated with existing geological maps, obtaining a good agreement. |
| first_indexed | 2024-04-12T01:18:54Z |
| format | Article |
| id | doaj.art-9bb6be8aff594d1d9e6eb8bdbffb4938 |
| institution | Directory Open Access Journal |
| issn | 1133-0953 1988-8740 |
| language | English |
| last_indexed | 2024-04-12T01:18:54Z |
| publishDate | 2016-06-01 |
| publisher | Universitat Politécnica de Valencia |
| record_format | Article |
| series | Revista de Teledetección |
| spelling | doaj.art-9bb6be8aff594d1d9e6eb8bdbffb49382022-12-22T03:53:52ZengUniversitat Politécnica de ValenciaRevista de Teledetección1133-09531988-87402016-06-01046577210.4995/raet.2016.44824378Lithologic identification and characterization using ETM+ (Landsat 7). Study case of the Upsala glacier basin, ArgentineA. Lo Vecchio0M. G. Lenzano1S. Richiano2L. E. Lenzano3Instituto Argentino de nivología, glaciología y ciencias ambientales (IANIGLA)-CONICETUniversidad Nacional de Cuyo (UNCuyo)-CONICETUniversidad Nacional de La Plata (UNLP)Instituto Argentino de nivología, glaciología y ciencias ambientales (IANIGLA)-CONICETThe object of this study aims to evaluate and analyze digital image processing techniques applied to the Enhanced Thematic Mapper Plus (ETM+), in order to demark and characterize the outcropping lithologies on the Upsala Glacier basin, Santa Cruz, Argentine Republic. The prolific technological and spatial development experienced in the last decades has given place to the generation, without precedents, of multiple remote sensors capable of capturing information of the terrestrial surface and also the improvement of digital image processing techniques and software; amongst them, the amazing possibilities in the detection and differentiation of diverse covers present on the terrestrial surface can be highlighted, such as glaciers, volcanoes, vegetation, soils, water, types of rock outcrops, etc. This situation improves mapping and monitoring of natural phenomenon in the Earth Sciences field. The proposed methodology includes radiometric corrections, elimination of unwanted covers, statistical evaluation in the combination of the most appropriate bands, application of the Z index, discretization of the statistical series, entailing tasks of spectral classification with field samples and a later validation. Valuable results were obtained by means of digital processing of images, that were validated yielding a 82% of accuracy in the proposed classification, which are good results taking into account the diversity of covers present and the lithological heterogeneity that makes up each pixel (30m). These results were also validated with existing geological maps, obtaining a good agreement.http://polipapers.upv.es/index.php/raet/article/view/4482Sensor ETM+Clasificación no supervisadaSensores remotosDetección de litologíasÍndice Z |
| spellingShingle | A. Lo Vecchio M. G. Lenzano S. Richiano L. E. Lenzano Lithologic identification and characterization using ETM+ (Landsat 7). Study case of the Upsala glacier basin, Argentine Revista de Teledetección Sensor ETM+ Clasificación no supervisada Sensores remotos Detección de litologías Índice Z |
| title | Lithologic identification and characterization using ETM+ (Landsat 7). Study case of the Upsala glacier basin, Argentine |
| title_full | Lithologic identification and characterization using ETM+ (Landsat 7). Study case of the Upsala glacier basin, Argentine |
| title_fullStr | Lithologic identification and characterization using ETM+ (Landsat 7). Study case of the Upsala glacier basin, Argentine |
| title_full_unstemmed | Lithologic identification and characterization using ETM+ (Landsat 7). Study case of the Upsala glacier basin, Argentine |
| title_short | Lithologic identification and characterization using ETM+ (Landsat 7). Study case of the Upsala glacier basin, Argentine |
| title_sort | lithologic identification and characterization using etm landsat 7 study case of the upsala glacier basin argentine |
| topic | Sensor ETM+ Clasificación no supervisada Sensores remotos Detección de litologías Índice Z |
| url | http://polipapers.upv.es/index.php/raet/article/view/4482 |
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