| Revista: | Investigaciones geográficas - Instituto de Geografía. UNAM |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000446463 |
| ISSN: | 0188-4611 |
| Autores: | Mancera Flores, Andrea1 Morales Méndez, Daniel1 Saavedra Gallardo, Emilio1 Hernández Santana, José Ramón1 Méndez Linares, Ana Patricia1 |
| Instituciones: | 1Universidad Nacional Autónoma de México, Instituto de Geografía, Ciudad de México. México |
| Año: | 2020 |
| Periodo: | Dic |
| Número: | 103 |
| País: | México |
| Idioma: | Español |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en español | resumen está disponible en el texto completo |
| Resumen en inglés | The main objective of this paper is to calculate and evaluate the behavior of coastal morphodynamics in the northern coast of the state of Veracruz over the past 45 years (1973-2017) from regional and local perspectives. This study included three sites suitable for establishing engineering prototypes for the use of wave power and its conversion into electricity micro-generation in the coastal towns Barra de Cazones, Palma Sola, and Villa Rica. To this end, we used geospatial data of aerial photographs, ortho- photos and satellite images for different years (1973, 1986, 1995, 2000, 2011, and 2017) to identify and demarcate the shoreline based on Boak and Turner (2005). Subsequently, this attribute was classified according to its prevailing process (progradation or regression) in the DSAS module (USGS, 2012) to determine the shoreline change rates. Besides, a baseline was set to determine the potential future impacts of installing the engineering prototypes. According to the availability of inputs, the northern zone was approached regionally for the period 2000-2017, while Barra de Ca- zones and Palma Sola covered the years 1995-2017, and Villa Rica encompassed the years 1973-2017. The results in terms of the net shoreline movement (NSM) show an overall regional trend toward the prevalence of progradation in the northern coast. Progradation values reach up to +27 m near river mouths, dune fields, and anthropized areas, with figures higher than +90 m in some localities. Coastal regression shows values as high as -97 m and -27 m in fluvial- marine and wind-marine environments, as well as in highly anthropized areas. Barra de Cazones shows three distinctive sectors. The first shows a net shoreline regression of -16 m at Playa Chaparrales. The second sector, more widespread, comprises approximately 60% of the local coast, with pro- gradation values of up to +26 m. Finally, the third sector, in its northern part around the fluvial-marine bar near the Cazones riv |
| Disciplinas: | Geografía |
| Palabras clave: | Geografía física, Geomorfología costera, Morfodinámica costera, Veracruz, México |
| Keyword: | Physical geography, Coastal geomorphology, Coastal morphodynamics, Veracruz, Mexico |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
