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- Title
Nighttime analysis of the mechanisms that control CO<sub>2</sub> and H<sub>2</sub>O gradients in a coastal region.
- Authors
Eduarda Oliveira Pinheiro, Maria; Costa Acevedo, Otávio; Eli Soares de Oliveira, Pablo
- Abstract
Understanding the water and carbon exchange in the soil-atmosphere system and the mechanisms that control these exchanges are fundamental to have a real and adequate representation of the physical processes involved. Under stable night conditions, carbon transfer processes such as respiration and water transfer processes such as dew deposition are more difficult to study by the eddy covariance method. Thus, the aim of this study is to investigate the mechanisms that control the exchange of water and carbon dioxide near a thermal power plant and the ocean, through the gradients of concentration of these quantities at different levels in the atmosphere. Data from the experimental site located in Linhares - ES - Brazil (19 ° 31'53 "S, 39 ° 48'03" W), 4 km from the coast and about 250 m from Linhares Geração SA thermeletric, were used.2 and H2O are measured by the AP200-Campbell system, which consists of vertically arranged chambers that pull gas flow at the following levels 1, 2, 5, 9, 15 and 20 m. In this study, a total of 67 nights (from 9 pm to 5 am), from 2017, were selected. The wind direction was from the north so that there was no interference from the thermal plant's feathers in the data analysis.
- Subjects
BRAZIL; OCEAN thermal power plants; WATER transfer; GAS flow; CARBON dioxide; CARBON in soils; SOIL air
- Publication
Revista Ciência e Natura, 2020, Vol 42, p1
- ISSN
0100-8307
- Publication type
Article
- DOI
10.5902/2179460X46923