Navigation surface
Inhydrography,theNavigation Surfaceparadigm represents an alternative to traditional approaches to managebathymetric databy creating bathymetric databases that can be used to generate high-resolution navigation aids and other applications.[1]
The paradigm also provides methods to manipulate the data to create products for various applications (e.g.,thematic mapsformarine geology,acoustic seabed classificationandmarine biology).[citation needed]
History
[edit]Recent technological developments inhydrography(e.g., large adoption ofmultibeam echosounderandelectronic navigational charts) have pushedhydrographic organizationsto adopt a new production paradigm centered on gridded surfaces rather than sounding-based workflow and products.[2]
Based on such a shift, the concept of navigation surface was introduced in 2003 to provide aseafloormodel at the best resolution that the data support. Depth values for nautical charting are then derived bygeneralizationof the available gridded surfaces. In addition, a quality assessment for each grid node of the navigation surface is created through an uncertainty layer.[1]
The Open Navigation Surface (ONS) project designed a free,open-source codelibrary to manage (read/write) the information required to create a Navigation Surface. The implementation of these requirements is represented by theBathymetric Attributed Griddata format.[3]
TheUS Navyhas implemented a global navigation surfacedatabaseusing an infrastructure called DBDB-NV.[2]
References
[edit]- ^abSmith, Shepard (2003).The Navigation Surface: A Multipurpose Bathymetric Database(Masters). Durham, NH:University of New Hampshire.Retrieved16 June2018.
- ^abTitley, David (26 June 2009)."Implementation of Navigation Surface".Hydro International.Retrieved17 June2018.
- ^"The Open Navigation Surface project".Retrieved16 June2018.
 | Thisoceanographyarticle is astub.You can help Wikipedia byexpanding it. |
 | Thisstandards- ormeasurement-related article is astub.You can help Wikipedia byexpanding it. |