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      Topographic statistics for the surface and seabed area, volume, depths, and slopes for the world's seas, oceans and countries

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      This work has been published open access under Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Conditions, terms of use and publishing policy can be found at www.scienceopen.com.

      Biodiversity, Oceans, Sea surface, Sea bed, Bathymetry, Topography

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          Abstract

          We produced a new terrain map of the oceans from the best available resolution global bathymetry using a Geographical Information System. From this map, we calculated the following statistics for each sea and ocean, and each country’s Exclusive Economic Zone2: sea surface and seabed area, volume, mean, maximum and standard deviation of depth and slope. We found a total sea surface area of 353 million km2, seabed area of 354 million km2, and volume of 1 trillion litres or 1.3 billion km3. The deepest depth was 10,898 m in Micronesia, North Pacific Ocean. We found that the ocean was very flat; 71% of seabed had a slope of < 1o. We predicted locations of 56,741 seamounts (> 1,000 m high) with 74% within 30-min distance of known seamounts. We also identified over 1 million circular seabed features that may be seamounts or sea-hills.

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          Journal
          10.14293/P2199-8442.1.SOP-LIFE.PZDAWX.v1

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