Publication: Aportes para la clasificación de lagunas subtropicales según la permanencia de sus aguas. El caso de Concepción Corrientes (Argentina).
Authors
Smichowski, Humberto ; Saucedo, Griselda Isabel ; Contreras, Felix Ignacio
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Publisher
Universidad de Murcia, Servicio de Publicaciones.
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DOI
https://doi.org/10.6018/geografia.647231
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info:eu-repo/semantics/article
Description
Abstract
El conocimiento tanto de la distribución como de las fluctuaciones en los niveles del agua, junto con las dinámicas ecológicas derivadas, es fundamental para lograr una comprensión holística necesaria para la gestión efectiva de los humedales, tanto en términos de conservación como de uso sustentable de este recurso. En este contexto, el objetivo de este trabajo es analizar el efecto de los eventos de inundación y sequía sobre las lagunas subtropicales del paisaje de lomadas arenosas en la provincia de Corrientes, determinando la superficie cubierta de agua durante eventos extremos. Para el estudio, se utilizaron imágenes Landsat 8 procesadas en la plataforma Google Earth Engine. Se calculó el índice MNDWI para los años 2017 (período húmedo) y 2020 (período seco) con el fin de identificar áreas con presencia de agua superficial. Las máscaras de superficie con agua obtenidas se superpusieron a la capa de lagunas de lomadas arenosas de Corrientes. Los resultados permitieron clasificar las lagunas según la permanencia del agua, además de discriminar aquellas que están parcial o totalmente cubiertas por macrófitas flotantes, las cuales pueden generar errores de detección en clasificaciones no supervisadas si no se consideran.
Abstract: The knowledge of both the distribution and fluctuations in water levels, along with the resulting ecological dynamics, is essential for achieving a holistic understanding necessary for the effective management of wetlands, both in terms of conservation andthe sustainable use of this resource. In this context, the objective of this study is to analyze the effect of flood and drought events on the subtropical shallow lakes of the sandy hill landscape in the province of Corrientes, by determining the water-covered surface during extreme events. For this study, Landsat 8 images processed on the Google Earth Engine platform were used. The MNDWI index was calculated for the years 2017 (wet period) and 2020 (dry period) to identify areas with the presence of surface water. The obtained water surface masks were superimposed onto the sandy hill lagoons layer of Corrientes. The results allowed for the classification ofshallow lakesbased on water permanence, in addition to distinguishing those that are partially or completely covered by floating macrophytes, which can cause detection errors in unsupervised classifications if not considered.
Abstract: The knowledge of both the distribution and fluctuations in water levels, along with the resulting ecological dynamics, is essential for achieving a holistic understanding necessary for the effective management of wetlands, both in terms of conservation andthe sustainable use of this resource. In this context, the objective of this study is to analyze the effect of flood and drought events on the subtropical shallow lakes of the sandy hill landscape in the province of Corrientes, by determining the water-covered surface during extreme events. For this study, Landsat 8 images processed on the Google Earth Engine platform were used. The MNDWI index was calculated for the years 2017 (wet period) and 2020 (dry period) to identify areas with the presence of surface water. The obtained water surface masks were superimposed onto the sandy hill lagoons layer of Corrientes. The results allowed for the classification ofshallow lakesbased on water permanence, in addition to distinguishing those that are partially or completely covered by floating macrophytes, which can cause detection errors in unsupervised classifications if not considered.
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Citation
Smichowski, H., Saucedo, G. I., & Contreras, F. I. (2026). Aportes para la clasificación de lagunas subtropicales según la permanencia de sus aguas. El caso de Concepción Corrientes (Argentina). Papeles De Geografía, (71). https://doi.org/10.6018/geografia.647231
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