Multitemporal Monitoring of Land Use and Landslide Risk in Northwest Guatemala
Multitemporal Monitoring of Land Use and Landslide Risk in Northwest Guatemala
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DOI: https://doi.org/10.22533/at.ed.3174172421066
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Palavras-chave: espectral, ladera, multitemporal, reflectancia, sensores, teledección.
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Keywords: spectral, slope, multitemporal, reflectance, sensors, remote sensing.
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Abstract:
Advances in remote sensing technology have made it possible to model the Earth's surface with a high degree of precision, providing high-resolution spatial data through geographic information systems (GIS). These GIS allow monitoring multi-temporal changes in land cover and use derived from growing urban expansion. In the study area of the El Incienso ravine, located northwest of Guatemala City, its climatic conditions and rugged topography make it susceptible to mass removal phenomena. This research uses remote sensing techniques based on multispectral satellite images to analyze the spatio-temporal evolution of these phenomena, whether anthropogenic or natural, and establish critical thresholds that allow early warning systems to be implemented for informed risk management. Quantitative interpretation through thematic cartography derived by applying the Mora-Vahrson hazard assessment methodology allows the generation of an updated inventory of areas susceptible to landslides. This provides the geotechnics professional with robust technical input to evaluate the quality and reliability of the information, optimizing the allocation of economic resources and human capital. Multi-temporal analysis makes it possible to generate dynamic digital cartography that can be continuously updated, significantly increasing the predictive and response capacity to these risk phenomena.
- José Ramón López López