The NZIS Hydrography Professional Stream (HPS) exists to represent and support those NZIS members who are either involved, or interested in hydrography.

World Hydrography Day is celebrated annually, on 21 June, to publicise and encourage increasing the coverage of hydrographic information on a global basis, (United Nations Resolution A/60/30 dated 29 November 2005).

Hydrography underpins almost every activity associated with water bodies (sea, lakes and rivers), including:

  • supporting safe and efficient navigation
  • port and shipping channel safety including monitoring tidal information and channel dredging
  • resource consent mapping and management
  • exploitation and management of fishing, minerals, and seabed resources
  • coastal zone management
  • positioning of oil-rigs, pipelines and sub-sea cables
  • environmental protection and management
  • maritime boundary delimitation
  • national marine spatial data infrastructures
  • recreational boating
  • design and engineering of dams and lakes for hydroelectric projects
  • land reclamation surveys.
  • information that support maritime defence, security and commercial fishing tsunami flood and inundation modelling
  • tourism.

The HPS seeks to provide value to NZIS Members by:

  • establishing effective relationships and communication with relevant industry practitioners, central and local government groups, professional bodies and training providers
  • advocating for HPS members and within the industry
  • assisting those HPS members seeking professional Hydrographic accreditation
  • supporting the NZIS continuing professional development(CPD) programmes to improve best hydrographic practice
  • facilitating communication between HPS members.


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