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| AMBROSIO,BRUNA G.; SOUSA,PAULO H.G.O.; GAGLIARDI,MARCELO H.; SIEGLE,EDUARDO. |
| Abstract Wave energy gradients between and along the margins of inlet channels play an important role in defining the inlet margins’ evolutionary processes, mainly those related to spit erosion or accretion, and inlet migration. The aim of this study is to understand the wave power distribution along the margins of a tidal inlet (Cananéia inlet, São Paulo, Brazil), its variation over time, and the influences of the ebb tidal delta morphology on the incoming waves. To evaluate changes in bathymetry and morphology of submersed features, we apply geoprocessing techniques to analyze nautical charts from the Brazilian Navy from 1939, 1971, 1985 and 2004. The numerical model MIKE21 SW was applied to assess wave propagation and nearshore wave power. Hence, wave... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Wave action; Ebb tidal delta; Tidal inlet; Numerical modeling. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100602 |
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| Long, Nathalie; Millescamps, Bastien; Guillot, Benoit; Pouget, Frederic; Bertin, Xavier. |
| Unmanned Aerial Vehicles (UAVs) are being increasingly used to monitor topographic changes in coastal areas. Compared to Light Detection And Ranging (LiDAR) data or Terrestrial Laser Scanning data, this solution is low-cost and easy to use, while allowing the production of a Digital Surface Model (DSM) with a similar accuracy. Three campaigns were carried out within a three-month period at a lagoon-inlet system (Bonne-Anse Bay, La Palmyre, France), with a flying wing (eBee) combined with a digital camera. Ground Control Points (GCPs), surveyed by the Global Navigation Satellite System (GNSS) and post-processed by differential correction, allowed georeferencing DSMs. Using a photogrammetry process (Structure From Motion algorithm), DSMs and orthomosaics... |
| Tipo: Text |
Palavras-chave: UAV photogrammetry; Coastal monitoring; Tidal inlet; Sandspit. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00668/78010/80247.pdf |
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