31. The next Europeans to arrive were the Bligh's maps and nautical charts and decided on Tubuai. 32. The plotter also accepts nautical chart cards that produce an electronic map on the display screen. 33. The International Hydrographic Organization adopted an early version of the IRM in 1983 for all nautical charts . 34. Before the advent of nautical charts , rutters were the primary store of geographic information for maritime navigation. 35. Nautical charts called portolan charts began to appear in Italy at the end of the 13th century.36. The patterns were drawn on nautical charts as a set of hyperbolic lines in the appropriate colour. 37. Its nautical charts indicated the parallel 18?1'00 " South as the maritime boundary between the two countries. 38. The service do so with the creation and maintenance of nautical charts , coastal marker buoys, and lighthouses. 39. Nautical charts are based on hydrographic surveys.40. Every producer of nautical charts also provides a system to inform mariners of changes that affect the chart.
