Pororoca : the backward flow of the Amazon /

In April of each year, the flow of the Amazon collides with the flood tide from the sea, causing the river to flow in reverse. Camera coverage (via helicopter) chronicles this once-a-year occurance.

Bibliographic Details
Corporate Authors: Nihon Hōsō Kyōkai, Films for the Humanities (Firm)
Format: Video VHS
Language:English
Published: Princeton, NJ : Films for the Humanities, [1992]
Subjects:
Description
Summary:In April of each year, the flow of the Amazon collides with the flood tide from the sea, causing the river to flow in reverse. Camera coverage (via helicopter) chronicles this once-a-year occurance.
Item Description:Videocassette release of the 1989 production.
"FFH2089."
Videorecording.
Physical Description:1 videocassette (29 min.) : sound, color ; 1/2 in.
Format:VHS.
Audience:Oceanography.
Geography.