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I'm using Folium to generate some interactive maps with ocean data. One of the restrictions I am facing is that the objects, I plot has to be at-least at 5, 6, .., n miles from the coast, hence I am looking for points or lines that meet the criteria.

Where can I find such a data?

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    It sounds like you want a multi-ring, fixed-distance buffer of the landmasses. I don't know if you can find this data already existing, but it should be pretty simple to generate. Try asking on gis.stackexchange.com if you want help with that. – csk Feb 19 '19 at 20:28
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    check out this search of noaa data for "offshore" data.noaa.gov/dataset/… – albert Feb 21 '19 at 22:22
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    As per @albert, oceancolor.gsfc.nasa.gov/docs/distfromcoast is probably the best source. earthscience.stackexchange.com/questions/14656/… asks a similar question, and github.com/barrycarter/bcapps/tree/master/STACK/… is one of my attempts to parse the NASA data. Be careful, though: inland seas are NOT included in these calculations. I've made more thorough calculations using GRASS if you need them, but, once you start including rivers, it gets fairly strange. – user3856 Feb 27 '19 at 8:53
  • @BarryCarter Thanks, please add it as an answer to accept it – Luis Ramon Ramirez Rodriguez Feb 28 '19 at 22:07
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    Feel free to self-answer and accept. My religion prohibits me from answering SE questions :) – user3856 Mar 2 '19 at 0:44
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As per @albert, https://oceancolor.gsfc.nasa.gov/docs/distfromcoast is probably the best source.

https://earthscience.stackexchange.com/questions/14656/… asks a similar question,

and https://github.com/barrycarter/bcapps/tree/master/STACK/… is one of my attempts to parse the NASA data.

Be careful, though: inland seas are NOT included in these calculations. I've made more thorough calculations using GRASS if you need them, but, once you start including rivers, it gets fairly strange.

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I would take the USGS shoreline data then buffer it as needed. Pretty easy task just depending upon the accuracy needed. Not all shore data is created equal. ;)

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  • can you provide more information here? particularly around buffering? – albert Apr 11 at 1:54

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