MapMedia Navionics Wide Vector Chart: WVNAF41MAP - Africa - West (Update)
How MapMedia electronic charts are updated
To meet the needs and safety of users, MapMedia updates its vector charts once or twice a year, according to the chart providers' updates, and once a year for raster charts. It is of course, extremely important for boaters to keep their charts up to date, in order to ensure the safety of all passengers onboard.
Corrections, improvements and changes are made on a daily basis by the Hydrographic Services and by private chart providers, such as Jeppesen or Navionics.
Boaters need to have access to correct information about water depth, particularly in shallow areas. If dredging takes place, it is also important to keep the water depths up to date for these channels, harbors and waterways.
The information indicated on the chart is critical for assessing whether the boat can safely navigate in the area or not.
User-reported chart anomalies
Boaters and professionals have the ability to report errors or recent changes that they come across while boating. Examples of these changes are:
- New marina
- New pontoon
- Rocks or obstructions that are unreported or under-reported
- Buoys in the wrong place
- Wind not reported
- An inaccurate coastline following rapid coastal erosion
If an area is particularly affected by natural disasters, it is necessary to redesign the entire chart to reflect the sudden major changes. Natural events have led cartographers to make an overhaul of their cards and make big updates.
Make sure that you check the latest version of chart WVNAF41MAP by checking the MapMedia Catalog before you make your purchase. (example: WVNAF41MAP10.2) Version 10.2
Furuno NavNet 3D System
Time Zero / MaxSea
- Datacore by Navionics