“Hydrology is the science that deals with water on Earth, its occurrence, circulation and distribution, its physical and chemical properties and its reaction with the environment, including its relationship with living forms” (Tucci, 1993, p. 25).

Hydrology supports environmental and energy studies, urban planning for different human activities (hydroelectric plants, basin committees, city halls, civil defense, ANA, ONS).

Hydrosedimentology is a division of hydrology that encompasses the dynamics of water and sediments through the study of water erosion, transport and deposition of sediments in river beds (Carvalho, 1994).

Hydrological models are tools that enable the representation of the interaction between precipitation and surface runoff, whereas hydrodynamic models use mass and energy conservation laws as a basis to describe the flow of fluids, both with the objective of understanding, monitoring or predicting behavior hydrographic basin (TUCCI, 1998).

Area of action:

  • Hydrological modeling: Rain x flow, flow forecasts;
  • Calculation of maximum probable flood and maximum probable precipitation;
  • Coastal and continental water modeling in 1d, 2d, 3d:
    • Hydrodynamic, water quality, bottom morphology, dredging;
    • Calculation of wetland scenarios in rivers, reservoirs, estuaries and the sea.
  • PAE: dam emergency action plan in case of rupture.
    • Calculation of flooded areas due to the rupture of dams;
  • Regionalization of hydrometeorological data;
  • Automated Water and Environmental Characterization;
  • Managed smart and oriented towards hydrometeorological and environmental data;
  • Hydrosedimentological studies:
    • Analysis of the useful life of reservoirs (silting);
    • Analysis of sediment transport in rivers.
  • Consistency of hydrometeorological data;
  • Study of greenhouse gas in reservoirs


Services performed:

  • Technical report regarding water quality and hydrosedimentology of the Madeira River, in the Santo Antônio UHE, Santo Antônio Energia region (2020).
  • Hydrodynamic simulations for updating maps of flooded areas due to floods and the hypothetical rupture of the Dam of the Governador José Richa UHE considering the existence of the UHE Baixo Iguaçu, COPEL (2019);
  • Emergency Action Plan (PAE) for 6 dams: Pezzi, Passo do Meio, S. Cavalinhos, Caçador, Emília and Cotiporã Line, Brookfield (2018);
  • Evaluation of the effect of the Baixo Iguaçu HUE reservoir on flood hydrodynamics in the Cotegipe valley, COPEL (2018);
  • Hydrodynamic Simulations and Mapping of Wetlands Due to Natural Floods and the Hypothetical Rupture of the Dams of the Fiu and Apucaraninha Reservoirs, COPEL (2017);
  • Hydrodynamic Simulations and Mapping of Wetlands Due to Natural Floods and the Hypothetical Rupture of the São Jorge and Pitangui Dams, COPEL (2017);
  • Necessary studies for the dredging activities planned for the installation of the new port terminal of the company Novo Porto, Novo Porto (2015);
  • Frequency analysis of maximum regional flows in the Cavernoso River basin, COPEL (2015);
  • Analysis of rain and extreme flows in the Cavernoso River basin focusing on the PCH Cavernoso II region, COPEL (2015);
  • Comparative analysis of precipitation events, COPEL (2015);
  • Production of flood maps for different inflows from the Salto Caxias UHE, COPEL (2015);
  • Analysis of the 2014 flood event of the Cotegipe River in the stretch of the old Iguaçu River bed using the hydrodynamic model, COPEL (2015);
  • Restructuring of the operation management system of the Piraquara I, Piraquara II and Iraí Reservoirs, and the abstraction of the Iraí and Iguaçu rivers, updating its structure and implementing more processing options, SANEPAR (2013);
  • Revision, consistency and extension studies of hydrological series in the rivers Teles Pires and Apiacás – UHEs Colíder, Sinop, São Manoel and Foz do Apiacás, COPEL (2012);
  • PAE for the Barra do Braúna dam, Brookfield (2012);
  • Study of the Hypothetical rupture of the Chaglla UHE dam in Peru, Intertechne (2012);
  • Analysis of the floods of the Ressaca River; Answer to the questions requested by the Curitiba environmental court regarding public civil action No. 97.00.07678-4, MPF (2010);
  • PAE for UHE Capivari-Cachoeira, COPEL (2010);
  • Monitoring and maintenance of the conventional hydrological station on the Cavernous River and maintenance of telemetric stations, Tractbel Energia (2010);
  • PAE for 4 dams: Foz do Areia, Segredo, D. Jordao, Salto Caxias, COPEL (2009);
  • Study of the influence of UHE GPS in the silting process of Antonina bay, COPEL (2007);
  • And others.


Services in progress:

  • Analysis and Diagnosis of the environmental impact of the Fundão dam rupture:
    • Silting of the Candonga, Baguari, Aimores and Mascarenhas reservoirs,
    • Plume of Fundão mud at sea: Three-dimensional hydrodynamic modeling.
  • Impact of sediment transport on the Doce River.


For more information, send an email to comercial@lactec.org.br or request a proposal.