Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics
Volcanic ash fallout is a recurrent environmental disturbance in forests, arid and semi-arid rangelands of Patagonia, South America. The ash deposits over large areas are responsible for several impacts on ecological processes, agricultural production and health of local communities. Public policy d...
| Autores principales: | , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/2090 https://www.sciencedirect.com/science/article/pii/S0377027317306017 https://doi.org/10.1016/j.jvolgeores.2018.01.020 |
| _version_ | 1855482992271556608 |
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| author | Easdale, Marcos Horacio Bruzzone, Octavio Augusto |
| author_browse | Bruzzone, Octavio Augusto Easdale, Marcos Horacio |
| author_facet | Easdale, Marcos Horacio Bruzzone, Octavio Augusto |
| author_sort | Easdale, Marcos Horacio |
| collection | INTA Digital |
| description | Volcanic ash fallout is a recurrent environmental disturbance in forests, arid and semi-arid rangelands of Patagonia, South America. The ash deposits over large areas are responsible for several impacts on ecological processes, agricultural production and health of local communities. Public policy decision making needs monitoring information of the affected areas by ash fallout, in order to better orient social, economic and productive aids. The aim of this study was to analyze the spatial distribution of volcanic ash deposits from the eruption of Puyehue-
Cordón Caulle in 2011, by identifying a sudden change in the Normalized Difference Vegetation Index (NDVI) temporal dynamics, defined as a perturbation located in the time series.We applied a sparse-wavelet transform using the Basis Pursuit algorithm to NDVI time series obtained from the Moderate Resolution Image Spectroradiometer (MODIS) sensor, to identify perturbations at a pixel level. The spatial distribution of the perturbation promoted by ash deposits in Patagoniawas successfully identified and characterized by means of a perturbation in NDVI temporal dynamics. Results are encouraging for the future development of a new platform, in combination with data from forecasting models and tracking of ash cloud trajectories and dispersion, to inform stakeholders to mitigate impact of volcanic ash on agricultural production and to orient public intervention strategies after a volcanic eruption followed by ash fallout over a wide region. |
| format | Artículo |
| id | INTA2090 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA20902018-06-21T12:49:01Z Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics Easdale, Marcos Horacio Bruzzone, Octavio Augusto Erupciones Volcánicas Ceniza Distribución Espacial Volcanic Eruptions Ashes Spatial Distribution Región Patagónica Cordón Caulle Volcanic ash fallout is a recurrent environmental disturbance in forests, arid and semi-arid rangelands of Patagonia, South America. The ash deposits over large areas are responsible for several impacts on ecological processes, agricultural production and health of local communities. Public policy decision making needs monitoring information of the affected areas by ash fallout, in order to better orient social, economic and productive aids. The aim of this study was to analyze the spatial distribution of volcanic ash deposits from the eruption of Puyehue- Cordón Caulle in 2011, by identifying a sudden change in the Normalized Difference Vegetation Index (NDVI) temporal dynamics, defined as a perturbation located in the time series.We applied a sparse-wavelet transform using the Basis Pursuit algorithm to NDVI time series obtained from the Moderate Resolution Image Spectroradiometer (MODIS) sensor, to identify perturbations at a pixel level. The spatial distribution of the perturbation promoted by ash deposits in Patagoniawas successfully identified and characterized by means of a perturbation in NDVI temporal dynamics. Results are encouraging for the future development of a new platform, in combination with data from forecasting models and tracking of ash cloud trajectories and dispersion, to inform stakeholders to mitigate impact of volcanic ash on agricultural production and to orient public intervention strategies after a volcanic eruption followed by ash fallout over a wide region. EEA Bariloche Fil: Easdale, Marcos Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Bruzzone, Octavio Augusto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2018-03-21T12:54:15Z 2018-03-21T12:54:15Z 2018-03 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2090 https://www.sciencedirect.com/science/article/pii/S0377027317306017 0377-0273 https://doi.org/10.1016/j.jvolgeores.2018.01.020 eng info:eu-repo/semantics/restrictedAccess application/pdf Journal of volcanology and geothermal research 353 : 11-17. (March 2018) |
| spellingShingle | Erupciones Volcánicas Ceniza Distribución Espacial Volcanic Eruptions Ashes Spatial Distribution Región Patagónica Cordón Caulle Easdale, Marcos Horacio Bruzzone, Octavio Augusto Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics |
| title | Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics |
| title_full | Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics |
| title_fullStr | Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics |
| title_full_unstemmed | Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics |
| title_short | Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics |
| title_sort | spatial distribution of volcanic ash deposits of 2011 puyehue cordon caulle eruption in patagonia as measured by a perturbation in ndvi temporal dynamics |
| topic | Erupciones Volcánicas Ceniza Distribución Espacial Volcanic Eruptions Ashes Spatial Distribution Región Patagónica Cordón Caulle |
| url | http://hdl.handle.net/20.500.12123/2090 https://www.sciencedirect.com/science/article/pii/S0377027317306017 https://doi.org/10.1016/j.jvolgeores.2018.01.020 |
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