River Winds and Transport of Forest Volatiles in the Amazonian Riparian Ecoregion

Ye，Jianhuai1,2; Batista，Carla E.3,4; Zhao，Tianning1; Campos，Jesus5; Ma，Yongjing6; Guimarães，Patricia3,4; Ribeiro，Igor O.3; Medeiros，Adan S.S.3; Stewart，Matthew P.1; Vilà-Guerau De Arellano，Jordi7; Guenther，Alex B.5; Souza，Rodrigo Augusto Ferreira De3,4; Martin，Scot T.1,8

2021

10.1021/acs.est.1c08460

ENVIRONMENTAL SCIENCE & TECHNOLOGY   Impact Factor & Quartile

0013-936X

1520-5851

Volatile organic compounds (VOCs) emitted from forests are important chemical components that affect ecosystem functioning, atmospheric chemistry, and regional climate. Temperature differences between a forest and an adjacent river can induce winds that influence VOC fate and transport. Quantitative observations and scientific understanding, however, remain lacking. Herein, daytime VOC datasets were collected from the surface up to 500 m over the "Rio Negro"river in Amazonia. During time periods of river winds, isoprene, α-pinene, and β-pinene concentrations increased by 50, 60, and 80% over the river, respectively. The concentrations at 500 m were up to 80% greater compared to those at 100 m because of the transport path of river winds. By comparison, the concentration of methacrolein, a VOC oxidation product, did not depend on river winds or height. The differing observations for primary emissions and oxidation products can be explained by the coupling of timescales among emission, reaction, and transport. This behavior was captured in large-eddy simulations with a coupled chemistry model. The observed and simulated roles of river winds in VOC fate and transport highlight the need for improved representation of these processes in regional models of air quality and chemistry-climate coupling.

Amazon tropical forest riparian ecoregion river wind unmanned aerial vehicle volatile organic compounds

SCI ; EI

English

NI Journal Papers

Others

WOS:000820922900001

20222512247557

Air quality ; Antennas ; Atmospheric chemistry ; Climate models ; Forestry ; Gas chromatography ; Large eddy simulation ; Monoterpenes ; Tropics ; Unmanned aerial vehicles (UAV) ; Volatile organic compounds ; Wind

Meteorology:443 ; Atmospheric Properties:443.1 ; Air Pollution Control:451.2 ; Fluid Flow:631 ; Aircraft, General:652.1 ; Chemistry, General:801.1 ; Chemical Operations:802.3 ; Organic Compounds:804.1 ; Agricultural Equipment and Methods; Vegetation and Pest Control:821 ; Mathematics:921

ENVIRONMENT/ECOLOGY

2-s2.0-85132071858

Scopus

1.School Of Engineering And Applied Sciences,Harvard University,Cambridge,02138,United States
2.School Of Environmental Science And Engineering,Southern University Of Science And Technology,Shenzhen,Guangdong,518055,China
3.School Of Technology,Amazonas State University,Manaus,Amazonas,69065-020,Brazil
4.Post-Graduate Program In Climate And Environment,National Institute Of Amazonian Research,Manaus,Amazonas,69060-001,Brazil
5.Department Of Earth System Science,University Of California,Irvine,Irvine,92697,United States
6.State Key Laboratory Of Atmospheric Boundary Layer Physics And Atmospheric Chemistry,Institute Of Atmospheric Physics,Chinese Academy Of Sciences,Beijing,100029,China
7.Meteorology And Air Quality Section,Wageningen University,Wageningen,6708 PB,Netherlands
8.Department Of Earth And Planetary Sciences,Harvard University,Cambridge,02138,United States

Ye，Jianhuai,Batista，Carla E.,Zhao，Tianning,et al. River Winds and Transport of Forest Volatiles in the Amazonian Riparian Ecoregion[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2021.

Ye，Jianhuai.,Batista，Carla E..,Zhao，Tianning.,Campos，Jesus.,Ma，Yongjing.,...&Martin，Scot T..(2021).River Winds and Transport of Forest Volatiles in the Amazonian Riparian Ecoregion.ENVIRONMENTAL SCIENCE & TECHNOLOGY.

Ye，Jianhuai,et al."River Winds and Transport of Forest Volatiles in the Amazonian Riparian Ecoregion".ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021).