• Raster Charts: July 2020
• Raster Charts XL: July 2019

• No limits on oceanic charts,
• 1:75,000 - 1:250,000 scale: 10 charts
• Up to 1:75,000 scale: 30 charts

TIFF

July 2020  (Raster Charts XL)

All views

Marine Digimap Licence

© British Crown and OceanWise, 2018. All rights reserved. Licence No. EK001-20180802. Not to be used for Navigation.

1:45,000,000 to 1:10,000

Various, dependent on chart scale

• Backdrop mapping.
• Marine cartography.
• Mapping UK ports and harbours.

• OceanWise Raster Charts product information page
• OceanWise Raster Charts XL product information page
• OceanWise User Guide

Raster Charts are derived from raster-based material obtained under licence from the UK, and other, Hydrographic Offices. They provide familiarity for users who work with nautical charts, are pre-symbolised and ready for immediate use. Raster Charts can be opened using any image viewer software and are available as individual charts for different geographic areas at discrete scale levels.

Raster Charts are available in two versions: 'Full Marginalia’ and 'XL' (eXcLuding land). The ‘XL’ version has all extra information round the map (e.g. north arrows, scale bars, inset maps etc.) removed and replaced with transparent areas. This makes it ideal for use in GIS software allowing users to pan across adjacent charts without this information obscuring the map data.

Horizontal coordinate reference system:

• Raster Charts are provided in their original coordinate reference system, usually to the WGS84 Datum (EPSG:4326) and in Mercator or Transverse Mercator, the latter with an individually defined meridian.
• Raster Charts XL are provided in WGS84 / Pseudo-Mercator (EPSG:3857).

All depths are to Chart Datum, which in most cases is equal to Low Astronomical Tide (LAT) or Lowest Low Water (LLW) depending on location.

OceanWise User Guide