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Perrin Remonte - Salinity of the world's oceans
(files.catbox.moe)
https://www.perrinremonte.com/home-bis
Lower res version with updated scale
https://www.perrinremonte.com/expe-eng?itemId=m21a3at8pndyfg97b4lgs89eem8gg4
The Nile's average volume is not actually all that big. The Amazon puts more than 70 times as much water into the ocean, apparently. Although the Amazon is quite an outlier in that regard, being about as big as the 2nd through to 7th largest combined