4 ms·

> 40 percent of the world’s coastlines At what resolution? https://en.wikipedia.org/wiki/Coastline_paradox https://en.wikipedia.org/wiki/Coastline_paradox

• throwaway894345 6y ago
  Presumably it’s 40% at any resolution. Specifically I would think any two coastlines would increase proportionately for a fixed increase in resolution.
  • riffraff 6y ago
    I doubt this matters, but it seems different kind of coastlines would have different length at different resolution. i.e. the presence of fjords compared to long sandy beaches would produce diverging measures. Or, if rivers have large deltas or estuaries you could get very different measures.
    • hobofan 6y ago
      Yup, see this list: https://en.wikipedia.org/wiki/List_of_countries_by_length_of_coastline https://en.wikipedia.org/wiki/List_of_countries_by_length_of... In the list of the article here, Norway in particular tipped me off, as it's incredibly jagged coastline can be lead to great resolution-dependent differences.
      • eslaught 6y ago
        Ok, but real-world coastlines are not true fractals. I assume that the numbers do converge as resolution increases.
      • Taniwha 6y ago
        that's because of all the crinkly bits
  • deleted 6y ago
    [deleted]