globalchange  > 全球变化的国际研究计划
Project number: 1561755
Title:
Leaf-level to Canopy NOx and Ozone Exchanges at University of Michigan Biological Station (UMBS) during PHotochemistry, Emissions, and Transport (PROPHET) 2016
Author: Detlev Helmig
Publisher: University of Colorado at Boulder
Publishing Year: 2016
Start date of project: 2016-05-01
End date of project: 2018-04-30
Amount: 370630
grant: US-NSF
Project Type: Standard Grant
Country Filed: US
Language: 英语
Subject of Source: Geosciences - Atmospheric and Geospace Sciences
Keyword: leaf-level ; ozone ; emission ; leaf-level gas exchange ; atmosphere ; multi-layer canopy chemical exchange ; leaf-level nox exchange ; leaf exchange ; daytime below-canopy turbulent transport representation ; ambient nox ; michigan biological station ; umbs forest oxidation
English Abstract: This project is part of a summer field study to gain a better understanding of reactive chemistry in the atmosphere of a forested environment. In this project, the exchange of nitrogen compounds at the leaf-level will be investigated to better predict the production of ozone, secondary organic aerosols and the cycling of nitrogen between the atmosphere and the biosphere. Improving the understanding of reactive chemistry in forest environments will improve projections of how future changes in forest succession and climate might affect the future composition of the atmosphere.

The specific objectives of this study are to: (1) determine leaf exchanges of NO, NO2, NOy, and ozone for the dominant tree species at the University of Michigan Biological Station's (UMBS) Program for Research on Oxidants: PHotochemistry, Emissions, and Transport (PROPHET) site; (2) determine the dependency of the leaf-level gas exchanges on the physiological and environmental factors including photosynthesis, stomatal conductance, light, temperature, and humidity; (3) determine the dependency of the leaf-level gas exchanges on the ambient NOx and ozone mixing ratio; (4) Investigate potential connections between leaf-level NOx exchanges and emission of biogenic volatile organic carbon; (5) re-examine nocturnal and daytime below-canopy turbulent transport representation in the Multi-layer Canopy Chemical Exchange (MLC-CHEM) model using high resolution temperature gradient measurements; and (6) incorporate, revisit, and further improve the modeling of the UMBS forest oxidation.
Document Type: 项目
Identifier: http://119.78.100.158/handle/2HF3EXSE/92467
Appears in Collections:全球变化的国际研究计划
科学计划与规划

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Detlev Helmig. Leaf-level to Canopy NOx and Ozone Exchanges at University of Michigan Biological Station (UMBS) during PHotochemistry, Emissions, and Transport (PROPHET) 2016. 2016-01-01.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Detlev Helmig]'s Articles
百度学术
Similar articles in Baidu Scholar
[Detlev Helmig]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Detlev Helmig]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.