Review article: Analysis of sediment disaster risk assessment surveys in Brazil: a critical review and recommendations

dos Santos, Thiago D.; Uchida, Taro

doi:https://doi.org/10.5194/nhess-25-4153-2025

Articles | Volume 25, issue 10

https://doi.org/10.5194/nhess-25-4153-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-25-4153-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 10

Review article

|

24 Oct 2025

Review article |

| 24 Oct 2025

Review article: Analysis of sediment disaster risk assessment surveys in Brazil: a critical review and recommendations

Thiago D. dos Santos and Taro Uchida

Data sets

iretoria de Pesquisas, Coordena\c{c}\~{a}o de Popula\c{c}\~{a}o e Indicadores Sociais IBGE -- Instituto Brasileiro de Geografia e Estat\'{\i}stica https://www.ibge.gov.br/estatisticas/sociais/educacao/19879-suplementos-munic2.html?edicao=18296&t=downloads

Pesquisa de Informa\c{c}\~{o}es B\'{a}sicas Municipais IBGE -- Instituto Brasileiro de Geografia e Estat\'{\i}stica https://www.ibge.gov.br/estatisticas/sociais/educacao/19879-suplementos-munic2.html?edicao=18296&t=downloads

2022 Demographic Census IBGE -- Instituto Brasileiro de Geografia e Estat\'{\i}stica https://censo2022.ibge.gov.br/

Short summary

Five federal sediment-related disaster risk assessments have been conducted in Brazil, each with distinct objectives and methodologies. To evaluate their effectiveness and identify issues, we analyzed the methods and outcome data and reviewed the status of disaster prevention initiatives based on the assessment results. Our findings revealed persistent problems across all methods. Consequently, we recommend improvements to enhance the methods' efficacy and reliability.