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BackVazante do Rio Negro e de rios no Amazonas ganha ritmo, mas segue dentro do esperado
Vazante do Rio Negro e de rios no Amazonas ganha ritmo, mas segue dentro do esperado
NEWS
G12 hours agoEnvironment1 min readBrazilView translation

Vazante do Rio Negro e de rios no Amazonas ganha ritmo, mas segue dentro do esperado

Quick Look

O ritmo de descida das águas nos rios do Amazonas acelerou no início de setembro, mas permanece dentro da normalidade esperada, mantendo níveis acima do registro histórico do mesmo período em 2024.

AI-generated summary

Why It Matters

A seca de 2024 no Amazonas foi a pior registrada na série histórica.

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A descida das águas ganhou ritmo acelerado no período, mas o cenário ainda é considerado normal e está dentro do esperado, segundo o Serviço Geológico do Brasil (SGB). O início de setembro está entre as épocas de maior intensidade da vazante dos rios em todo o estado.

Apesar da aceleração na queda do nível das águas, o comportamento do Rio Negro na seca de 2026 ainda é diferente e mais lento que o registrado no mesmo período em 2024, quando o Amazonas enfrentou a pior seca da série histórica.

Naquele ano, entre 1 e 9 de setembro, o Rio Negro recuou 2,05 metros, o equivalente a 80 centímetros a mais que o registrado no mesmo período em 2026. No dia 9 de setembro de 2024, o nível do rio Negro era de 17,73 metros.

Nesta quarta-feira, o nível dos demais rios do Amazonas seguia em queda. Em Itacoatiara, o nível registrado do Rio Amazonas foi de 8,92 metros, de acordo com a Praticagem dos Rios Ocidentais da Amazônia (Proa). Na localidade, o rio estava abaixo da marca atingida na mesma data no ano anterior, quando registrou 11,42 metros.

Em Tabatinga, o Rio Solimões registrou 3,16 metros no dia 9 de setembro. Em Coari, o nível do mesmo rio é de 11,80 metros. As localidades também registraram cotas abaixo das marcas atingidas no mesmo período de 2025.

De acordo com o painel de monitoramento da Defesa Civil do Amazonas, divulgados nesta quarta-feira, 13 municípios do estado estavam em situação de atenção por conta da estiagem dos rios, 14 em estado de alerta e sete em estado de emergência:

Open Questions

  • Quais são os sete municípios em estado de emergência?
  • Qual é a previsão de impacto da estiagem no transporte hidroviário da região?

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This article was originally published by G1.

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