Aplicación de nuevas técnicas en la caracterización de humedales relacionados con el agua subterránea
; Laurencena, Patricia Claudia ; García, Juan Manuel ; Gomez, Nora
; Kruse, Eduardo Emilio 
Fecha
2018
Editorial
Universidad Nacional de Salta
Revista
Título del libro
El agua subterránea: "Recurso sin fronteras". Humedales vinculados al agua subterránea
Nombre del evento
Fecha del evento
Institución organizadora
ISSN
eISSN
ISBN
978-987-633-537-9
Idioma
Español
Tipo del evento
Clasificación temática
Palabras clave
Resumen
La aparición de herramientas tecnológicas modernas facilita la caracterización, monitoreo y modelados de humedales relacionados con el agua subterránea. Estas técnicas incluyen el uso de sistemas de aeronaves no tripulados (drones) y sensores de medición continua de los niveles y calidad del agua. Los procedimientos tradicionales asociados a estas nuevas tecnologías brindan una oportunidad para avanzar con mayor precisión en el conocimiento hidrológico de los humedales. Se presentan los principales lineamientos de la metodología empleada en un estudio que abarca humedales situados en el noreste de la Provincia de Buenos Aires. Se realizaron relevamientos fotogramétricos con un dron tipo multirotor equipado con un sensor RGB de alta resolución. Las configuraciones de vuelo, altura, velocidad, solapamiento frontal y lateral y grilla de recorrido fueron programadas para evaluar las variaciones areales de los humedales. Se realizó el procesado de la información mediante softwares específicos. A partir de relevamientos de campo se ejecutaron perforaciones de monitoreo en las proximidades del humedal en las cuales se instalaron sensores para la medición continua de los niveles, conductividad eléctrica del agua y temperatura. Los resultados a obtener consisten en mosaicos ortorectificados de alta resolución, modelos digitales de elevación y modelos 3D del terreno, que muestran las variaciones areales del agua en superficie del humedal. Ello asociado a los datos registrados en las perforaciones, permite un análisis espacio – temporal a distintas escalas de la relación agua superficial – agua subterránea en el humedal.
The appearance of modern technological tools facilitates the characterization, monitoring, and modeling of wetlands related to groundwater. These techniques include the use of unmanned aircraft systems (drones) and continuous measurement sensors for water levels and quality. The traditional procedures associated with these new technologies provide an opportunity to advance with greater precision in the hydrological knowledge of wetlands. The main guidelines of the methodology used in a study covering wetlands located in the northeast of the Province of Buenos Aires are presented. Photogrammetric surveys were carried out with a multirotor type drone equipped with a high-resolution RGB sensor. The configurations of flight, height, speed, frontal and lateral overlap and route grid were programmed to evaluate the areal variations of the wetlands. The information was processed using specific software. From field surveys, monitoring drilling was carried out in the vicinity of the wetland, where sensors were installed for the continuous measurement of levels, electrical conductivity of water and temperature. The results to be obtained consist of highresolution orthorectified mosaics, digital elevation models and 3D terrain models, which show the areal variations of water in the wetland surface. This, associated with the data recorded in the drilling, allows a spatiotemporal analysis at different scales of the surface water - groundwater relation in the wetland.
The appearance of modern technological tools facilitates the characterization, monitoring, and modeling of wetlands related to groundwater. These techniques include the use of unmanned aircraft systems (drones) and continuous measurement sensors for water levels and quality. The traditional procedures associated with these new technologies provide an opportunity to advance with greater precision in the hydrological knowledge of wetlands. The main guidelines of the methodology used in a study covering wetlands located in the northeast of the Province of Buenos Aires are presented. Photogrammetric surveys were carried out with a multirotor type drone equipped with a high-resolution RGB sensor. The configurations of flight, height, speed, frontal and lateral overlap and route grid were programmed to evaluate the areal variations of the wetlands. The information was processed using specific software. From field surveys, monitoring drilling was carried out in the vicinity of the wetland, where sensors were installed for the continuous measurement of levels, electrical conductivity of water and temperature. The results to be obtained consist of highresolution orthorectified mosaics, digital elevation models and 3D terrain models, which show the areal variations of water in the wetland surface. This, associated with the data recorded in the drilling, allows a spatiotemporal analysis at different scales of the surface water - groundwater relation in the wetland.
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