Wetland Mapping with Multitemporal Sentinel Radar Remote Sensing in the Southeast Region of Brazil

J. B.G. Salinas, M. K.P. Eggerth, M. E. Miller, R. R.B. Meza, J. T.A. Chacaltana, J. R. Acuna, G. F. Barroso

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

A classification method with multi-temporal images of synthetic aperture radar (SAR) combined with Geographic information system, geoinformation data, and field validation, was applied for wetland mapping accuracy and typology. Wetland mapping is vital for management and conservation, particularly under environmental pressures such as wetland drainage and land reclamation. The aim of this study is to develop an accurate mapping of wetlands and open water systems of the Lower Doce River Valley - LDRV (Southeastern Brazil) with Synthetic Aperture Radar (SAR) imagery, using multitemporal classification techniques and ground truth validation. Sentinel-1B SAR imagery from 2016 and 2019 was processed with Google Earth Engine (GEE). Monthly median imagery condition for the rainy season was obtained and K-means unsupervised classification was applied. The study yields 4,157 wetlands, 262.27 km2 with predominant small patches. Fieldwork revealed three main wetlands categories: coastal wetlands, inland wetlands and artificial wetlands. The results have shown an overall accuracy of 81.9% and a Kappa coefficient of 0.71. Wetlands, non-wetlands, and open waters classes present accuracy of 50, 80 and 95%, respectively.

Idioma originalInglés
Título de la publicación alojada2020 IEEE Latin American GRSS and ISPRS Remote Sensing Conference, LAGIRS 2020 - Proceedings
EditorialInstitute of Electrical and Electronics Engineers Inc.
Páginas669-674
Número de páginas6
ISBN (versión digital)9781728143507
DOI
EstadoPublicada - mar 2020
Publicado de forma externa
Evento2020 IEEE Latin American GRSS and ISPRS Remote Sensing Conference, LAGIRS 2020 - Santiago, Chile
Duración: 21 mar 202026 mar 2020

Serie de la publicación

Nombre2020 IEEE Latin American GRSS and ISPRS Remote Sensing Conference, LAGIRS 2020 - Proceedings

Conferencia

Conferencia2020 IEEE Latin American GRSS and ISPRS Remote Sensing Conference, LAGIRS 2020
PaísChile
CiudadSantiago
Período21/03/2026/03/20

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