Linking Meteorology, Turbulence, and Air Chemistry in the Amazon Rain Forest
Linking Meteorology, Turbulence, and Air Chemistry in the Amazon Rain Forest
复制标题
将亚马逊雨林的气象学、湍流和空气化学联系起来
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
A. Yáñez
中科院分区：
文献类型：
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作者：
J. Fuentes;M. Chamecki;R. M. N. Santos;C. Randow;P. Stoy;G. Katul;D. Fitzjarrald;A. Manzi;T. Gerken;A. Trowbridge;L. Freire;J. Ruiz;J. F. Maia;J. Tóta;N. Dias;G. Fisch;C. Schumacher;O. Acevedo;J. R. Mercer;A. Yáñez
AbstractWe描述的显着特点的实地研究，其目标是量化的垂直分布的植物排放的碳氢化合物和气溶胶和云凝结核生产以上的亚马逊雨林中部的贡献。利用部署在50米气象塔上的观测系统，辅以系留气球部署，确定了不同边界层热力学状态下碳氢化合物和气溶胶的垂直分布。雨林释放出足够的活性碳氢化合物，如异戊二烯和单萜，提供次生有机气溶胶和云凝结核的前体。中尺度对流系统从对流层中层输送臭氧，使大气边界层以及森林冠层和地表层富集。通过多种化学变化，臭氧富集的大气表层可以氧化雨林排放的碳氢化合物。从实地研究得出的一个结论是，...
AbstractWe describe the salient features of a field study whose goals are to quantify the vertical distribution of plant-emitted hydrocarbons and their contribution to aerosol and cloud condensation nuclei production above a central Amazonian rain forest. Using observing systems deployed on a 50-m meteorological tower, complemented with tethered balloon deployments, the vertical distribution of hydrocarbons and aerosols was determined under different boundary layer thermodynamic states. The rain forest emits sufficient reactive hydrocarbons, such as isoprene and monoterpenes, to provide precursors of secondary organic aerosols and cloud condensation nuclei. Mesoscale convective systems transport ozone from the middle troposphere, enriching the atmospheric boundary layer as well as the forest canopy and surface layer. Through multiple chemical transformations, the ozone-enriched atmospheric surface layer can oxidize rain forest–emitted hydrocarbons. One conclusion derived from the field studies is that the...