"Classical Antiquity Origin of Spatial Data Underlying Portolan Charts: How Pietro Vesconte Might Have Assembled the Carta Riccardiana Utilising Maps in Marinus of Tyre’s projection"

"Classical Antiquity Origin of Spatial Data Underlying Portolan Charts: How Pietro Vesconte Might Have Assembled the Carta Riccardiana Utilising Maps in Marinus of Tyre’s projection" - Interactive discussion https://hgss.copernicus.org/preprints/hgss-2026-2/ "Classical Antiquity Origin of Spatial Data Underlying Portolan Charts: How Pietro Vesconte Might Have Assembled the Carta Riccardiana Utilising Maps in Marinus of Tyre’s projection" - Interactive discussion