SciELO - Scientific Electronic Library Online

 
vol.31 issue2Brasergasilus mamorensis sp. n. (Copepoda: Ergasilidae) from the Nasal cavities of Hydrolycus pectoralis (Guenther, 1866) (Characiformes: Cynodontidae) from the Brazilian Amazon, and considerations about Abergasilinae author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Acta Amazonica

Print version ISSN 0044-5967On-line version ISSN 1809-4392

Acta Amaz. vol.31 no.2 Manaus Apr./June 2001

http://dx.doi.org/10.1590/1809-43922001312337 

Notas e Comunicações

Enchentes e vazantes do Rio Negro Medidas no porto de Manaus, Amazonas, Brasil

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

José Alberto NUNES DE MELLO 1  

Wanilze Gonçalves BARROS 2  

1 Pesquisador Titular, Coordenação de Pesquisas em Geociências, Instituto Nacional de Pesquisas da Amazônia. Caixa Postal, 478, 69.082-000 Manaus, AM., Brasil - e-mail:_nunes@inpa.gov.br

2Técnica Nível III, Coordenação de Pesquisas em Geociências, Instituto Nacional de Pesquisas da Amazônia. Caixa Postal 478, 69.082-000 Manaus, AM, Brasil


RESUMO

As cotas do rio Negro vem sendo medidas, diariamente, desde setembro de 1902. O presente trabalho baseou-se em dados colhidos entre os anos de 1903 a 1999. As cinco maiores enchentes aconteceram em: 1953 (29,69m), 1976 (29,61m), 1989 (29,42m), 1922 (29,35m) e 1909 (29,17m). As cinco maiores vazantes aconteceram em: 1963 (13,65m), 1906 (14,20m), 1997 (14,34m), 1916 (14,42m) e 1926 (14,54m). Os cinco menores valores de cotas máximas foram em: 1926 (21,77m), 1912 (24,84m), 1992 (25,42m), 1964 (25,91m) e 1980 (26,00m) e os cinco de cotas mínimas foram em: 1926 (21,77m), 1912 (24,84m), 1992 (25,42m), 1964 (25,91m) e 1980 (26,00m). As cinco maiores diferenças alcançadas em um mesmo ano entre as cotas máximas e mínimas aconteceram em: 1997 (14,62m), 1909 (14,13m), 1953 (12,62m), 1952 (12,44m) e 1916 (12,21 m) e as menores aconteceram em: 1912 (05,45m), 1968 (06,10m), 1985 (06,53m), 1974, (06,62m) e 1986 (06,74m).

Palavras-Chave: Enchentes; Vazantes; Rio-Negro

ABSTRACT

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).

Key words: flooding; flow off; Negro River

Texto disponível apenas em PDF

Creative Commons License This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.