How do the Close-up charts correspond to the high level charts?
What we did was first produce a high level chart for one location, say Southern Australia – Victoria. Then we used the exact same starting points (the ones over Antarctica) and zoomed the end-point perspective in, constructing individual charts for Port Cambell, Bells, and Ocean Beach etc. Notice that the swell angles change just slightly from one break to the next, even though the starting points are mostly the same. As we moved through the breaks the swell window changed slightly, with some great circles starting to cross over land. So we either added, deleted or moved a path or two to fit within the swell window. In some instances we left paths over land if it seemed reasonable that the swell would wrap into the nearby beach. Granted, we don’t have enough site specific knowledge about every break depicted to know how much wrapping actually can occur. It’s a best theoretical guess.
