GEOSCAN, résultats de la recherche


TitreEvaluating nearshore mapping capabilities of an autonomous kayak
TéléchargerTéléchargement (publication entière)
AuteurPilegard, T; Dohner, S; Trembanis, A
SourceProgram and abstracts: 2017 GeoHab Conference, Dartmouth, Nova Scotia, Canada; par Todd, B J; Brown, C J; Lacharité, M; Gazzola, V; McCormack, E; Commission géologique du Canada, Dossier public 8295, 2017 p. 94, (Accès ouvert)
LiensGeoHab 2017
ÉditeurRessources naturelles Canada
Réunion2017 GeoHab: Marine Geological and Biological Habitat Mapping; Dartmouth, NS; CA; mai 1-4, 2017
Documentdossier public
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Todd, B J; Brown, C J; Lacharité, M; Gazzola, V; McCormack, E; (2017). Program and abstracts: 2017 GeoHab Conference, Dartmouth, Nova Scotia, Canada, Commission géologique du Canada, Dossier public 8295
Sujetstechniques de cartographie; océanographie; milieux marins; milieu littoral; études côtières; conservation; organismes marins; écologie marine; gestion des ressources; peuplements biologiques; etudes de l'environnement; écosystèmes; levés géophysiques; levés acoustiques marins; levés au sonar; sonar latéral; bathymétrie; turbidite; tempêtes; biologie; géologie marine; géologie des dépôts meubles/géomorphologie; géologie de l'environnement; géophysique
ProgrammeGéoscience en mer, Géoscience de la gestion des océans
Diffusé2017 09 26
Résumé(disponible en anglais seulement)
Deep drafted survey vessels, autonomous underwater vehicles, and expensive aerial LiDAR surveys have limitations when conducting bathymetric surveys in the nearshore, shallow, turbid conditions. These limitations are overcome with lightweight, shallow drafted autonomous surface vehicles (ASVs).
Here, an autonomous kayak is tested as a practical, nearshore bathymetric survey platform, particularly in response to storm events. The accuracy and functionality of the autopilot aboard the kayak was evaluated, and the preliminary results show the on-track variability to be within 10% of the error of the autopilot's GPS. The autonomy of the system allows for repeatable and comparable data sets over the same area.
A storm in January 2017 allowed for a storm response survey in which the kayak was deployed three days before and six days after a storm event occurred at Broadkill Beach, Sussex County, DE. These surveys further proved the viability of such a platform for not only nearshore coastal surveys but storm response bathymetric surveys as well.
The quality of bathymetric and side-scan data recorded by two different single beam echo sounder/side-scan units have also been compared and evaluated, allowing for a cost-benefit analysis of the platform's payload. The preliminary budget for the kayak platform, including a single beam echo sounder/side-scan unit is relatively inexpensive at $3000. Based upon the early results of accuracy, cost, and modularity of this system, it is a viable platform for nearshore bathymetric surveying.