| DOI: | 10.2172/1261177
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| 报告号: | DOE/SC--ARM-16-035
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| 报告题名: | Green Ocean Amazon 2014/15 Terrestrial Ecosystem Project (Geco) Field Campaign Report |
| 作者: | Jardine, Kolby
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| 出版年: | 2016
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| 发表日期: | 2016-06-01
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| 总页数: | 26
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| 国家: | 美国
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| 语种: | 英语
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| 英文关键词: | Green Ocean Amazon 2014/15
; biogenic volatile organic compounds
; biosphere-atmosphere interactions
; cloud condensation nuclei
; modeling
; isoprene emission
; sulfer dioxide emission
; photosynthesis
; photorespiration
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| 中文主题词: | 气溶胶
; 云凝结核
; 排放物
; 挥发性有机化合物
; 大气辐射
; 冷凝
; 降水
; 森林
; 凝结
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| 主题词: | AEROSOLS
; CLOUD CONDENSATION NUCLEI
; EMISSIONS
; VOLATILE ORGANIC COMPOUNDS
; ATMOSPHERIC RADIATION
; CONDENSATION
; PRECIPITATION
; FORESTS
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| 英文摘要: | In conjunction with the U.S. Department of Energy (DOE)âs Atmospheric Radiation Measurement (ARM) Climate Research Facility GoAmazon campaign, the Terrestrial Ecosystem Science (TES)-funded Green Ocean Amazon (GoAmazon 2014/15) terrestrial ecosystem project (Geco) was designed to: ⢠evaluate the strengths and weaknesses of leaf-level algorithms for biogenic volatile organic compounds (BVOCs) emissions in Amazon forests near Manaus, Brazil, and ⢠conduct mechanistic field studies to characterize biochemical and physiological processes governing leaf- and landscape-scale tropical forest BVOC emissions, and the influence of environmental drivers that are expected to change with a warming climate. Through a close interaction between modeling and observational activities, including the training of MS and PhD graduate students, post-doctoral students, and technicians at the National Institute for Amazon Research (INPA), the study aimed at improving the representation of BVOC-mediated biosphere-atmosphere interactions and feedbacks under a warming climate. BVOCs can form cloud condensation nuclei (CCN) that influence precipitation dynamics and modify the quality of down welling radiation for photosynthesis. However, our ability to represent these coupled biosphere-atmosphere processes in Earth system models suffers from poor understanding of the functions, identities, quantities, and seasonal patterns of BVOC emissions from tropical forests as well as their biological and environmental controls. The Model of Emissions of Gases and Aerosols from Nature (MEGAN), the current BVOC sub-model of the Community Earth System Model (CESM), was evaluated to explore mechanistic controls over BVOC emissions. Based on that analysis, a combination of observations and experiments were studied in forests near Manaus, Brazil, to test existing parameterizations and algorithm structures in MEGAN. The model was actively modified as needed to improve tropical BVOC emission simulations on a regional scale. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1261177
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/42100
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1261177.pdf（1715KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Jardine, Kolby. Green Ocean Amazon 2014/15 Terrestrial Ecosystem Project (Geco) Field Campaign Report. 2016-01-01.
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