A5011024247- Remote Sensing and LiDAR Applications
- Coastal and Marine Dynamics
- Coastal wetland ecosystem dynamics
- Aeolian processes and effects
- Coastal and Marine Management
- Marine and coastal plant biology
- Coral and Marine Ecosystems Studies
- Remote Sensing in Agriculture
- Geological formations and processes
- Remote-Sensing Image Classification
- Remote Sensing and Land Use
- Geology and Paleoclimatology Research
- Soil erosion and sediment transport
- 3D Surveying and Cultural Heritage
- Marine Ecology and Invasive Species
- Island Studies and Pacific Affairs
- Marine and environmental studies
- French Urban and Social Studies
- Geological Modeling and Analysis
- Satellite Image Processing and Photogrammetry
- Geological and Geophysical Studies
- Climate Change, Adaptation, Migration
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Marine Biology and Ecology Research
École Pratique des Hautes Études
2018-2024
Université Paris Sciences et Lettres
2018-2024
LIttoral ENvironnement et Sociétés
2021-2023
Littoral, Environnement, Télédétection, Géomatique
2010-2023
Institut Universitaire Européen de la Mer
2018-2023
Université des Lettres et des Sciences Humaines de Bamako
2023
Centre National de la Recherche Scientifique
2018-2022
Université Paris Cité
2021
Cerro Tololo Inter-American Observatory
2015
Coastal living reefs provide considerable services from tropical to temperate systems. Threatened by global ocean-climate and local anthropogenic changes, require spatially explicit management at the submeter scale, where socioecological processes occur. Drone surveys have adequately addressed these requirements with red-green-blue (RGB) orthomosaics digital surface models (DSMs). The use of ancillary spectral bands has potential increase mapping all reefscapes that emerge during low tide....
We present a forward-modelling simulation framework designed to model the data products from Dark Energy Survey (DES). This forward-model process can be thought of as transfer function -- mapping cosmological and astronomical signals final used by scientists. Using output simulations (the Blind Cosmology Challenge), we generate simulated images Ultra Fast Image Simulator, Berge et al. 2013) catalogs representative DES data. In this work simulate 244 sq. deg coadd in 5 bands for Science...
Coastal areas are among the most endangered places in world, due to their exposure both marine and terrestrial hazards. host more than two-thirds of world’s population, will become increasingly affected by global changes, particular, rising sea levels. Monitoring protecting coastlines have impelled scientists develop adequate tools methods spatially monitor morpho-sedimentary coastal areas. This paper presents capabilities aerial drone, as an “all-in-one” technology, drive accurate...
Coastal urbanisation is a widespread phenomenon throughout the world and often linked to increased erosion. Small Pacific islands are not spared from this issue, which of great importance in context climate change. The French Polynesian island Bora was used as case study investigate historical evolution its coastline classification position 1955 2019. A time series very high-resolution aerial imagery processed highlight changes island’s coastline. overall length natural shores, including...
Abstract. Anthropocene is featured with increasing human population and global changes that strongly affect landscapes at an unprecedented pace. As a flagship, the coastal fringe subject to accelerated conversion of natural areas into agricultural ones, in turn, urban generating hazardous soil artificialization. Very high resolution (VHR) technologies such as airborne LiDAR or UAV imageries are good assets model topography classify land use/land cover (LULC), helping local management. Even...
Abstract. Earth observation of complex scenes, such as coastal fringes, is based on a plethora optical sensors constrained by trade-offs between spatial, spectral, temporal and radiometric resolution. The spaceborne hyperspectral EO-1 Hyperion sensor (decommissioned in 2017) was able to acquire imagery with 10 nm spectral (220 bands) at 30 m spatial resolutions over 1424.5 km2 scenes. Conversely, the widespread unmanned airborne vehicle (UAV) hyperspatial DJI Mavic Pro camera can collect...
The evolution of the coastal fringe is closely linked to impact climate change, specifically increases in sea level and storm intensity. anthropic pressure that inflicted on these fragile environments strengthens risk. Therefore, numerous research projects look into possibility monitoring understanding environment order better identify its dynamics adaptation major changes are currently taking place landscape. This new study aims improve habitat mapping/classification at Very High Resolution...
Collin, A.; Duvat, V.; Pillet, Salvat, B., and James, D., 2018. Understanding Interactions between Shoreline Changes Reef Outer Slope Morphometry on Takapoto Atoll (French Polynesia). In: Shim, J.-S.; Chun, I., Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal Research, Special Issue No. 85, pp. 496–500. Coconut Creek (Florida), ISSN 0749-0208.Low-lying atoll reef islands host populations who are highly exposed to increasing...
Offering remarkable biodiversity, coastal salt marshes also provide a wide variety of ecosystem services: cultural services (leisure, tourist amenities), supply (crop production, pastoralism) and regulation including carbon sequestration natural protection against erosion inundation. The consideration this service takes part in renewed vision risk management especially marine flooding, with an emerging focus on “nature-based solutions.” Through work, using remote-sensing methods, we propose...
In the current context of decadal global changes and predicted sea level rise, annual erosion is one most obvious indicators threats to coastal systems. Shoreline monitoring during high energy events therefore a crucial action prevent alleviate future risks. However, studies look at this on regional issue basis with limited resolution, support from field observations. This study addresses lack by focusing resolution (HR) shoreline surveys, combined wave measurements, in megatidal Bay...
James, D.; Collin, A.; Houet, T.; Mury, Gloria, H., and Le Poulain, N., 2020. Towards better mapping of seagrass meadows using UAV multispectral topographic data. In: Malvárez, G. Navas, F. (eds.), Global Coastal Issues Journal Research, Special Issue No. 95, pp. 1117-1121. Coconut Creek (Florida), ISSN 0749-0208Seagrasses are exposed to global changing such as ocean warming acidification, sedimentation, eutrophication direct degradation. Seagrass traditionally monitored with visible imagery...
Giraud-Renard, E.; Dolique, F.; Collin, A.; James, D.; Gairin, Courteille, M.; Beaufort, O.; René-Trouillefou, Dulormne, Jeanson, M., and Lecchini, D., 2022. Long-term evolution of the Guadeloupean shoreline (1950–2017). Journal Coastal Research, 38(5), 976–987. Coconut Creek (Florida), ISSN 0749-0208. Insular environments have long been recognized as sensitive to issues linked natural forces that occur every day (swells, currents, winds) or are exceptional (storms cyclones). However, over...
Collin, A.; Calle, C.; James, D.; Costa, S.; Maquaire, O.; Davidson, R., and Trigo-Teixeira, A., 2020. Modelling 2D coastal flooding at fine-scale over vulnerable lowlands using satellite-derived topobathymetry, hydrodynamic overflow simulations. In: Malvárez, G. Navas, F. (eds.), Global Coastal Issues of Journal Research, Special Issue No. 95, pp. 1052-1056. Coconut Creek (Florida), ISSN 0749-0208.Flooding simulation across shallow waters has been successful for the diagnosis prognosis...
Mury, A.; Collin, Jeanson, M.; James, D.; Gloria, H.; Pastol, Y., and Etienne S., 2020. Mapping nature-based marine flooding risks using VHR wave, LiDAR, satellite: The case study of the Dol Marsh (Bay Mont-Saint-Michel, France). In: Malvárez, G. Navas, F. (eds.), Global Coastal Issues Journal Research, Special Issue No. 95, pp. 743-747. Coconut Creek (Florida), ISSN 0749-0208.A growing interest in solutions has gained unprecedented attention coastal risk management, to complement or replace...
Coastal urbanisation is a widespread phenomenon throughout the world and often linked to increased erosion. Small Pacific islands are not spared from this issue, which of great importance in context climate change. The French Polynesian island Bora was used as case study investigate historical evolution its coastline classification position 1955 2019. A time series very-high-resolution aerial imagery processed highlight changes island’s coastline. overall length natural shores,...
Coastal and estuarine ecosystems are facing spatiotemporal changes suffer from the effects of accelerated natural destructive processes due to climate change. Monitoring these areas is crucial protect them maintain ecological balance shorelines. In this context, full-waveform airborne topo-bathymetric lidar a reliable tool collect data seamlessly over land-water continuum zones, thanks its dual wavelength configuration. It therefore optimal for coastal habitats monitoring mapping. However,...
Malgré l’intérêt croissant pour la cartographie des fonds marins, seul un quart d’entre eux a pu être levé fidèlement à une résolution de l’ordre du km (30 arc-secondes). Ceci s’explique par les lourds coûts engendrés campagnes bateau (sonar) et/ou avion (lidar). Ainsi, bathymétrie dérivée satellite connaît essor considérable depuis deux décennies. En fer lance, l’imagerie multispectrale très haute spatiale Pléiades Neo dispose 6 bandes (4 visibles, 1 red edge, et infrarouge) pourvues d’une...
Collin, A.; James, D.; Gairin, E.; Aubert, M.; Daniel, Y.; Feunteun, E., and Dubois, S., 2024. The spatial network of the largest honeycomb reef in world as revealed by an ultra-high resolution lidar drone. In: Phillips, M.R.; Al-Naemi, Duarte, C.M. (eds.), Coastlines under Global Change: Proceedings from International Coastal Symposium (ICS) 2024 (Doha, Qatar). Journal Research, Special Issue No. 113, pp. 961-965. Charlotte (North Carolina), ISSN 0749-0208. On temperate coastal areas,...
James, D.; Collin, A.; Bouet, Perette, M.; Dimeglio, T.; Hervouet, G.; Durozier, Duthion, G., and Lebas, J-F., 2024. Multi-temporal drone mapping of coastal ecosystems in restoration: Seagrass, salt marsh, dune. In: Phillips, M.R.; Al-Naemi, S., Duarte, C.M. (eds.), Coastlines under Global Change: Proceedings from the International Coastal Symposium (ICS) 2024 (Doha, Qatar). Journal Research, Special Issue No. 113, pp. 524-528. Charlotte (North Carolina), ISSN 0749-0208. Ecotones at land-sea...