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Methods for Analyzing Surface Texture Effects of Volcanoes with Plinian and Subplinian Eruptions Types: Cases of Study Lascar (23° 22' S) and Chaiten (42 ° 50' S), Chile
Version 1
: Received: 7 June 2018 / Approved: 8 June 2018 / Online: 8 June 2018 (12:33:49 CEST)
How to cite:
Fernández, L.; Álvarez, G.; Salinas, R. Methods for Analyzing Surface Texture Effects of Volcanoes with Plinian and Subplinian Eruptions Types: Cases of Study Lascar (23° 22' S) and Chaiten (42 ° 50' S), Chile. Preprints2018, 2018060132. https://doi.org/10.20944/preprints201806.0132.v1
Fernández, L.; Álvarez, G.; Salinas, R. Methods for Analyzing Surface Texture Effects of Volcanoes with Plinian and Subplinian Eruptions Types: Cases of Study Lascar (23° 22' S) and Chaiten (42 ° 50' S), Chile. Preprints 2018, 2018060132. https://doi.org/10.20944/preprints201806.0132.v1
Fernández, L.; Álvarez, G.; Salinas, R. Methods for Analyzing Surface Texture Effects of Volcanoes with Plinian and Subplinian Eruptions Types: Cases of Study Lascar (23° 22' S) and Chaiten (42 ° 50' S), Chile. Preprints2018, 2018060132. https://doi.org/10.20944/preprints201806.0132.v1
APA Style
Fernández, L., Álvarez, G., & Salinas, R. (2018). Methods for Analyzing Surface Texture Effects of Volcanoes with Plinian and Subplinian Eruptions Types: Cases of Study Lascar (23° 22' S) and Chaiten (42 ° 50' S), Chile. Preprints. https://doi.org/10.20944/preprints201806.0132.v1
Chicago/Turabian Style
Fernández, L., Gabriel Álvarez and Renato Salinas. 2018 "Methods for Analyzing Surface Texture Effects of Volcanoes with Plinian and Subplinian Eruptions Types: Cases of Study Lascar (23° 22' S) and Chaiten (42 ° 50' S), Chile" Preprints. https://doi.org/10.20944/preprints201806.0132.v1
Abstract
This paper presents a new methodology that provides the analysis of surface texture changes in areas adjacent to the volcano and its impact product of volcanic activity. To do this, algorithms from digital image processing such as the co-occurrence matrix and the wavelet transform are used. These methods are working on images taken by the Landsat satellite platform sensor 5 TM and Landsat 7 ETM + sensor, and implemented with the purpose of evaluating superficial changes that can warn of surface movements of the volcano. The results were evaluated by similarity metrics for grayscale images, and validated in two different scenarios that have the same type of eruption, but differ, essentially, in climate and vegetation. Finally, the proposed algorithm is presented, setting the parameters and constraints for implementation and use.
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
