Airborne observations reveal elevational gradient in tropical forest isoprene emissions
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Airborne observations reveal elevational gradient in tropical forest isoprene emissions. / Gu, Dasa; Guenther, Alex B.; Shilling, John E.; Yu, Haofei; Huang, Maoyi; Zhao, Chun; Yang, Qing; Martin, Scot T.; Artaxo, Paulo; Kim, Saewung; Seco, Roger; Stavrakou, Trissevgeni; Longo, Karla M.; Tóta, Julio; De Souza, Rodrigo Augusto Ferreira; Vega, Oscar; Liu, Ying; Shrivastava, Manish; Alves, Eliane G.; Santos, Fernando C.; Leng, Guoyong; Hu, Zhiyuan.
I: Nature Communications, Bind 8, 15541, 2017.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Airborne observations reveal elevational gradient in tropical forest isoprene emissions
AU - Gu, Dasa
AU - Guenther, Alex B.
AU - Shilling, John E.
AU - Yu, Haofei
AU - Huang, Maoyi
AU - Zhao, Chun
AU - Yang, Qing
AU - Martin, Scot T.
AU - Artaxo, Paulo
AU - Kim, Saewung
AU - Seco, Roger
AU - Stavrakou, Trissevgeni
AU - Longo, Karla M.
AU - Tóta, Julio
AU - De Souza, Rodrigo Augusto Ferreira
AU - Vega, Oscar
AU - Liu, Ying
AU - Shrivastava, Manish
AU - Alves, Eliane G.
AU - Santos, Fernando C.
AU - Leng, Guoyong
AU - Hu, Zhiyuan
PY - 2017
Y1 - 2017
N2 - Isoprene dominates global non-methane volatile organic compound emissions, and impacts tropospheric chemistry by influencing oxidants and aerosols. Isoprene emission rates vary over several orders of magnitude for different plants, and characterizing this immense biological chemodiversity is a challenge for estimating isoprene emission from tropical forests. Here we present the isoprene emission estimates from aircraft eddy covariance measurements over the Amazonian forest. We report isoprene emission rates that are three times higher than satellite top-down estimates and 35% higher than model predictions. The results reveal strong correlations between observed isoprene emission rates and terrain elevations, which are confirmed by similar correlations between satellite-derived isoprene emissions and terrain elevations. We propose that the elevational gradient in the Amazonian forest isoprene emission capacity is determined by plant species distributions and can substantially explain isoprene emission variability in tropical forests, and use a model to demonstrate the resulting impacts on regional air quality.
AB - Isoprene dominates global non-methane volatile organic compound emissions, and impacts tropospheric chemistry by influencing oxidants and aerosols. Isoprene emission rates vary over several orders of magnitude for different plants, and characterizing this immense biological chemodiversity is a challenge for estimating isoprene emission from tropical forests. Here we present the isoprene emission estimates from aircraft eddy covariance measurements over the Amazonian forest. We report isoprene emission rates that are three times higher than satellite top-down estimates and 35% higher than model predictions. The results reveal strong correlations between observed isoprene emission rates and terrain elevations, which are confirmed by similar correlations between satellite-derived isoprene emissions and terrain elevations. We propose that the elevational gradient in the Amazonian forest isoprene emission capacity is determined by plant species distributions and can substantially explain isoprene emission variability in tropical forests, and use a model to demonstrate the resulting impacts on regional air quality.
U2 - 10.1038/ncomms15541
DO - 10.1038/ncomms15541
M3 - Journal article
C2 - 28534494
AN - SCOPUS:85019942905
VL - 8
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 15541
ER -
ID: 234278446