MICROMETEOROLOGICAL ASPECTS OF THE EMISSION OF MONOTERPENES IN A FOREST IN THE CENTRAL AMAZON
Ciência E Natura
MICROMETEOROLOGICAL ASPECTS OF THE EMISSION OF MONOTERPENES IN A FOREST IN THE CENTRAL AMAZON
Autor Correspondente: Sarah Batalha | [email protected]
Palavras-chave: atmospheric chemistry; turbulent vortices covariance; covbs
Resumos Cadastrados
Resumo Inglês:
The objective of this work was to present results on the mixing ratio and flow of monoterpenes in a forest region of the Brazilian Amazon. Micrometeorology instrumentation (using a Sonic Anemometer) and analytical chemistry were used through a Proton Transfer Reaction - Time of Flight - Mass Spectrometer (PTR-ToF-MS). The calibration of the spectrometer was performed regularly using a gravimetric mixture of standard gas containing different masses of volatile organic compounds. The results showed average mixture ratio of monoterpenes of 0.185 ppbv and maximum emission flux of 1,495 mg m -2 h -1. It was concluded that this region presented a significant emission of monoterpenes in relation to another tropical forest in central Amazonia, evidencing the need to expand studies on atmospheric chemistry in different forests of the Amazon Basin
