The Arakawa River (Japanese: 荒川) is one of the principal rivers flowing through Tokyo, the capital city of Japan. The point of origin is on Mount Kobushi in Saitama Prefecture, and the Arakawa empties into Tokyo Bay. The Arakawa is a sister river with the Potomac River in the United States. For the Second World War frigate class, see River class frigate The Murray River in Australia A waterfall on the Ova da Fedoz, Switzerland A river is a large natural waterway. ... Tokyo (東京; Tōkyō listen, literally eastern capital), is located in the Kanto region on the island of Honshu in Japan. ... Saitama Prefecture (埼玉県; Saitama-ken) is located on Honshu island, Japan. ... Map of Tokyo Bay, 1917 Tokyo Bay (東京湾; Tōkyō-wan) is a bay in the southern Kanto region of Japan, surrounded by the Boso Peninsula (Chiba Prefecture) and the Miura Peninsula (Kanagawa Prefecture). ... Upper part of the Potomac River The Potomac River flows into Chesapeake Bay, located along the mid-Atlantic coast of the United States (USA). ...
External link
Potomac Sister River page (http://www.potomacriver.org/about_potomac/arakawa.htm)
In this case, the river increases the sea surface height as well as the total momentum of surface cells, but the average velocity of a surface cells is not changed.
The river is assumed to be unstratified and horizontally uniform.