Processing of airborne lidar bathymetry data for detailed sea floor mapping

2014 ◽  
Author(s):  
H. Michael Tulldahl
2013 ◽  
Author(s):  
H. Michael Tulldahl ◽  
Petra Philipson ◽  
Hans Kautsky ◽  
Sofia A. Wikström

Data Series ◽  
10.3133/ds320 ◽  
2008 ◽  
Author(s):  
Guy R. Cochrane ◽  
Jonathan A. Warrick ◽  
Yael Sagy ◽  
David Finlayson ◽  
Jodi Harney

2019 ◽  
Vol 75 (2) ◽  
pp. I_115-I_120
Author(s):  
Shinji IKI ◽  
Tatsuo FUJIYAMA ◽  
Kiwamu KADOWAKI ◽  
Tomoaki YOKOTA ◽  
Tomoharu WATANABE ◽  
...  

Author(s):  
Xiankun Wang ◽  
Fanlin Yang ◽  
Hande Zhang ◽  
Dianpeng Su ◽  
Zhiliang Wang ◽  
...  

2007 ◽  
Author(s):  
H. Michael Tulldahl ◽  
Claes Vahlberg ◽  
Andreas Axelsson ◽  
Henrik Karlsson ◽  
Peter Jonsson

Author(s):  
Liu Jiaoyang ◽  
Su Dianpeng ◽  
Qi Chao ◽  
Yang Anxiu ◽  
Wang Xiankun ◽  
...  

Multibeam sea floor mapping technologies have provided the capability to accurately, and cost effectively, image large areas of the seabed. Imagery provides base maps of sea floor topography from which targeted surveys can be planned to map sea floor sediments and associated benthic communities. Over the last five years extensive multi-disciplinary surveys have been carried out on Browns, German and Georges Banks. The government of Canada entered into a partnership with the scallop industry to map bathymetry, surficial sediments and benthic communities. The new knowledge has been used by industry, and has implications for fisheries management. Associations between substrate type and benthic community composition have enabled precise maps of scallop habitat to be produced and links between scallop abundance and substrate to be established. The environmental and economic benefits have been immediate, with reduced effort to catch set quota, less bottom disturbance, and containment of fishing activity to known scallop grounds. Stock assessments and management practices are improved. Other pilot projects in Atlantic Canada and the northeastern USA have demonstrated the value of integrated sea floor mapping in designating marine protected areas (The Gully, Stellwagen Bank), in identifying offshore hazards such as landslides, in siting offshore structures, cables and pipelines, and in addressing environmental issues such as the routing of outfalls and disposal of dredge materials. In recognition of the power of these new tools and digital map products, Canada is considering development of a national mapping strategy to provide the foundation for sustainable ocean management in the 21st century.


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