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Rio Negro water level fluctuations at the Manaus harbor, Amazonas, Brazil

The quotes of the Negro River are measured every day since September 1902 until today. This work is based on the years 1903 until 1999. The five highest flooding happened in: 1953 (29,69m), 1976 (29,61m), 1989 (29,42m), 1922 (29,35m) and 1909 (29,17m). The five lowest floding happened in: 1963 (13,65m), 1906 (14,20m), 1997 (14,34m), 1916 (14,42m) and 1926 (14,54m). The five smaller values of maximum quotas were em: 1926 (21,77m), 1912 (24,84m), 1992 (25,42m), 1964 (25,91m) and 1980 (26,00m) and the five of minimum quotas were in: 1926 (21,77m), 1912 (24,84m), 1992 (25,42m), 1964 (25,91m) and 1980 (26,00m). The five larger differences reached in a same year among the maximum and minimum quotas happened in: 1997 (14,62m), 1909 (14,13m), 1953 (12,62m), 1952 (12,44m) and 1916 (12,21m). And the smallest ones happened in: 1912 (05,45m), 1968 (06,10m), 1985 (06,53m), 1974, (06,62m) and 1986 (06,74m).

flooding; flow off; Negro River


Instituto Nacional de Pesquisas da Amazônia Av. André Araujo, 2936 Aleixo, 69060-001 Manaus AM Brasil, Tel.: +55 92 3643-3030, Fax: +55 92 643-3223 - Manaus - AM - Brazil
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