The GSP1 chart is regularly updated to reflect changes in topography, new submarine cables, and updated surveys. 1:65,000.
If you don’t want to generate the chart yourself, several institutions publish daily PDF reports that include the GSP1 chart. gsp1 chart pdf
. In the context of maritime navigation and training, it is part of a series (e.g., GSP 1, SP 1) used by mariners and port authorities to manage vessel traffic and safety within local waters. The Role of GSP 1 in Maritime Navigation The GSP1 chart is regularly updated to reflect