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Oceanography in 2025 Proceedings of a Workshop (2009) / Chapter Skim
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"Ocean Mapping" in 2025--Larry Mayer
Pages 153-156

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 153...
... Most importantly it will probably demonstrate how little we really understand about the small scale temporal and spatial variability of ocean processes. Lessons learned from these large scale experiments will inevitably be transferred to smaller scale efforts (and vice-versa -- e.g., we are presently building a "mini-observatory" to monitor Portsmouth Harbor and innovations developed in our and other small scale efforts may also be adopted in the larger programs)
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From page 154...
... . Along with broader bandwidth, the next generation of swath mapping systems will use multiple phase detections within each beam footprint, evolving to the point where lateral resolution will be limited by the pulse length rather than the current limitation of beam footprint.
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From page 155...
... While the developments described above will greatly aid in the ability to characterize both the seafloor and the water column, resolution of the finest scale features will always require bringing the sensor closer to the target. Remotely operated vehicles offer one approach to bringing the sensors close to the target (with little constraint on power and data transmission)
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From page 156...
... The combination of free-floating kinematic GPS buoys and some sort of acoustic ranging system may offer the possibility of greatly extending the positional accuracy of AUV-based surveys in an unconstrained (geographically) and cost-effective manner.
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Key Terms

  • multibeam sonar
  • swath mapping
  • visualization capabilities
  • beam footprint
  • kinematic gps

  • scale efforts
  • ocean processes
  • increase spatial
  • opaque medium
  • gps buoys

  • power supplies
  • acoustic ranging
  • sensors close
  • underwater acoustic
  • boosting power

  • pulse length
  • concomitant advances
  • evolving real
  • rapid evolution
  • presently building

  • capability allows
  • spatial variability
  • developments described
  • observatory efforts
  • ocean exploration

  • appropriate real
  • advanced remote
  • little constraint
  • sensor closer
  • sophisticated control


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