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Provedor de dados:  ArchiMer
País:  France
Título:  Potential of UAVs for Monitoring Mudflat Morphodynamics (Application to the Seine Estuary, France)
Autores:  Jaud, Marion
Grasso, Florent
Le Dantec, Nicolas
Verney, Romaric
Delacourt, Christophe
Ammann, Jerome
Deloffre, Julien
Grandjean, Philippe
Data:  2016-04
Ano:  2016
Palavras-chave:  Coastal monitoring
Unmanned Aerial Vehicle
Mudflat areas
Morphological features
Resumo:  Intertidal mudflats play a critical role in estuarine exchange, connecting marine and continental supplies of nutrients and sediments. However, their complex morphodynamics, associated with a wide range of physical and biological processes, are still poorly understood and require further field investigation. In addition, mudflats are challenging areas for Structure-from-Motion (SfM) photogrammetric surveys. Indeed, the mudflats generally hold back residual tidal water, which can make stereo restitution particularly difficult because of poor correlations or sun-glint effects. This study aims to show the potential of light UAVs (Unmanned Aerial Vehicles) for monitoring sedimentary hydrodynamics at different spatial scales in a silty estuary. For each UAV mission an orthophotograph and a Digital Elevation Model (DEM) are computed. From repeated surveys the diachronic evolution of the area can be observed via DEM differencing. Considering the ground texture in such a context, the stereo restitution process is made possible because of the high spatial resolution of the UAV photographs. Providing a synoptic view as well as high spatial resolution (less than 4 cm), the UAV dataset enables multi-scale approaches from the study of large areas to the morphodynamics of smaller-scale sedimentary structures and the morphodynamics impact of plant ground cover.
Tipo:  Text
Idioma:  Inglês

Editor:  Mdpi Ag
Relação:  info:eu-repo/grantAgreement/EC/FP7/318787/EU//IQMULUS
Formato:  application/pdf
Fonte:  Isprs International Journal Of Geo-information (2220-9964) (Mdpi Ag), 2016-04 , Vol. 5 , N. 4 , P. -
Direitos:  2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (


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