Light absorption budget in a reservoir cascade system withwidely differing optical properties
| Autor: | Alisson Fernando Coelho do Carmo, Enner Alcântara, Nariane Bernardo, Thanan Rodrigues, Fernanda Watanabe, Caroline Ribeiro de Andrade, Ana Carolina Campos Gomes |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp), Science and Technology of Pará State-IFPA |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
lcsh:Hydraulic engineering Bio-optical characterization 010504 meteorology & atmospheric sciences bio-optical characterization Geography Planning and Development Flow (psychology) water quality monitoring Soil science Aquatic Science 01 natural sciences Biochemistry law.invention Water quality monitoring lcsh:Water supply for domestic and industrial purposes law lcsh:TC1-978 Phytoplankton Light absorption Absorption (electromagnetic radiation) Filtration 0105 earth and related environmental sciences Water Science and Technology Inland water lcsh:TD201-500 010604 marine biology & hydrobiology Aquatic ecosystem Colored dissolved organic matter Cascade inland water light absorption Environmental science Water quality |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Water, Vol 11, Iss 2, p 229 (2019) Water Volume 11 Issue 2 |
| Popis: | Aquatic systems are complex systems due to the environmental pressures that lead to water quality parameter changes, and consequently, variations in optically active compounds (OAC). In cascading reservoir systems, such as the Tietê Cascade Reservoir System (TCSR), which has a length of 1100 km, the horizontal gradients are expressive due to the filtration process that is caused by the sequence of dams affecting the light absorption throughout the cascade. Our new observations showed that colored dissolved organic matter (CDOM) dominate two reservoirs non-algae particles (NAP) dominate one, and phytoplankton dominates the other. The variability of light absorption along the cascade indicates the influence of watershed dynamics in the reservoirs as much as the flow driven by previous reservoirs. Despite the effect of the variability of light absorption, light absorption by phytoplankton strongly affects the total absorption in the four reservoirs in TCSR. The results obtained in this work may enable a better understanding of how the gradient pattern changes primary production and indicates a challenge in retrieving OAC concentrations using a bio-optical model for an entire cascade composed of different optical environments. |
| Databáze: | OpenAIRE |
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