I also don't know how to calculate what is 71%
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Perhaps
@laurenancona could provide some guidance to youThanks. Twitter will use this to make your timeline better. UndoUndo
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Uhhh sounds complicated.. maybe watch Drain the oceans on national geographic Channel.. weekly series with lots of smart scientist's and you can get some ideas??
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Usgs has some good maps. Look at the national elevation dataset(NED). I also think they have mapped most the ocean floor using low frequency radio waves from satellites. The n it's just find the volume under a plane. Seems easy. Just sum (Zplane-Zmap)*gridArea.
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Large data sets come in grids with elevations. The NED I think is 1 meter squares for USA and maybe 10 for rest of world? If you really want this done, shoot me an email. I work in mapping and volumetrics with large datasets all day. It would be a project but doable
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I'd start with NASA's blue marble data sets, but topography is only represented for land. I believe you'll have to combine it with the bathymetry datamaps. As for the 71%, that sounds like an optimization problem. Possibly something one could throw Excel/gnumeric at.
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Or just take a best guess, calculate land area and adjust the water level up or down from there
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Damn, you need some difficult shit.
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You have way too much time in your hands
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