Hydrographic and oceanographic data is readily available for sea areas where larger vessels can move.

However, quality environmental data about depths, sea-bottom quality, seabed texture and obstructions is sometimes lacking for the area between shipping channels and the shore.

This littoral zone is defined broadly as the land boundary of Ordinance Survey mapping (down to mean low water) and the sea-charting boundary of the Hydrographic Office's Admiralty Charts (up to mean high water).

In the past, it has fallen to the user of the different datasets available to resolve any problems resulting from the incompatibility of differing technical approaches. The ICH Project is determined to develop data capture standards and specifications which will result in a consistent approach whoever is recording the information.

Users and stakeholders need to be able to more effectively manage and monitor the littoral and shallow water zone. By providing better quality and currency of information, the coastal hydrography project aims to aid the identification of pollutants and improve the conservation of marine and foreshore habitats and ecosystems.

The Treasury's boost launches a project which will compare and contrast results in a pilot geographic area within a medium term time frame.

The core aim of the project is to lead to the development of data standards that can be implemented nationally.

The assessment of infrastructure projects such as port and harbour developments, the exploration of offshore energy sources, sea defence projects, and support for maritime Search & Rescue are all areas where better information on the inter-tidal zone can lead to improved decision making.

MJ Information No: 17209