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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Modelling the surface circulation and thermal structure of a tropical reservoir using three-dimensional hydrodynamic lake model and remote-sensing data

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Author(s):
Curtarelli, Marcelo Pedroso [1] ; Alcantara, Enner [2] ; Renno, Camilo Daleles [1] ; Assireu, Arcilan Trevenzoli [3] ; Bonnet, Marie Paule [4] ; Stech, Jose Luiz [1]
Total Authors: 6
Affiliation:
[1] Natl Inst Space Res, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[2] Sao Paulo State Univ, Dept Cartog, Presidente Prudente, SP - Brazil
[3] Univ Fed Itajuba, Nat Resource Inst, Itajuba, MG - Brazil
[4] Univ Toulouse, Toulouse - France
Total Affiliations: 4
Document type: Journal article
Source: WATER AND ENVIRONMENT JOURNAL; v. 28, n. 4, p. 516-525, DEC 2014.
Web of Science Citations: 9
Abstract

Diurnal variations in surface circulation, heat budget and thermal structure were investigated in a tropical reservoir using a synergistic approach that combines in situ observations, remote-sensing data and numerical modelling. The study area, the Itumbiara Reservoir (Brazil) at the beginning of the austral winter, is characterized by the presence of a weak thermal stratification and the passage of several cold fronts. Both in situ observations and numerical modelling showed that the surface circulation is wind-driven. The strongest water current was observed at 13:00h, which lagged behind the strongest wind. The daily heat budget was negative during the period and was controlled by short-wave radiation and latent heat flux. The diurnal cycle of stratification was at its maximum at 17:00h, and the surface mixed layer deepens at night. The colder waters of the Paranaiba River contribute to the stability of the water column near the river-reservoir transition zone. (AU)

FAPESP's process: 08/57719-9 - Program on Climate Change - INCT CLIMA
Grantee:Carlos Afonso Nobre
Support type: Research Program on Global Climate Change - Thematic Grants
FAPESP's process: 10/15075-8 - Numerical Study of Circulation and Thermodynamics of Itumbiara Reservoir Water
Grantee:Enner Herenio de Alcântara
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 07/08103-2 - Study of circulation, water quality and land use in the Itumbiara Reservoir hydrographic basin
Grantee:José Luiz Stech
Support type: Regular Research Grants