| Registro completo |
| 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
Photogrammetry
Estuary
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
|
| Identificador: |
http://archimer.ifremer.fr/doc/00326/43721/43167.pdf
DOI:10.3390/ijgi5040050
http://archimer.ifremer.fr/doc/00326/43721/
|
| 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 (http://creativecommons.org/licenses/by/4.0/).
info:eu-repo/semantics/openAccess
restricted use
|
|
