globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1821661116
论文题名:
Mapping hydroxyl variability throughout the global remote troposphere via synthesis of airborne and satellite formaldehyde observations
作者: Wolfe G.M.; Nicely J.M.; Clair J.M.S.; Hanisco T.F.; Liao J.; Oman L.D.; Brune W.B.; Miller D.; Thames A.; Abad G.G.; Ryerson T.B.; Thompson C.R.; Peischl J.; McCain K.; Sweeney C.; Wennberg P.O.; Kim M.; Crounse J.D.; Hall S.R.; Ullmann K.; Diskin G.; Bui P.; Chang C.; Dean-Day J.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2019
卷: 166, 期:23
起始页码: 11171
结束页码: 11180
语种: 英语
英文关键词: ATom ; Formaldehyde ; Hydroxyl ; OMI ; Troposphere
Scopus关键词: formaldehyde ; hydroxyl group ; methane ; Article ; atmosphere ; chemical analysis ; chemical parameters ; concentration (parameter) ; data base ; environmental parameters ; oxidation ; phenomenology ; priority journal ; satellite imagery ; synthesis ; troposphere
英文摘要: The hydroxyl radical (OH) fuels tropospheric ozone production and governs the lifetime of methane and many other gases. Existing methods to quantify global OH are limited to annual and global-to-hemispheric averages. Finer resolution is essential for isolating model deficiencies and building process-level understanding. In situ observations from the Atmospheric Tomography (ATom) mission demonstrate that remote tropospheric OH is tightly coupled to the production and loss of formaldehyde (HCHO), a major hydrocarbon oxidation product. Synthesis of this relationship with satellite-based HCHO retrievals and model-derived HCHO loss frequencies yields a map of total-column OH abundance throughout the remote troposphere (up to 70% of tropospheric mass) over the first two ATom missions (August 2016 and February 2017). This dataset offers unique insights on near-global oxidizing capacity. OH exhibits significant seasonality within individual hemispheres, but the domain mean concentration is nearly identical for both seasons (1.03 ± 0.25 × 106 cm−3), and the biseasonal average North/South Hemisphere ratio is 0.89 ± 0.06, consistent with a balance of OH sources and sinks across the remote troposphere. Regional phenomena are also highlighted, such as a 10-fold OH depression in the Tropical West Pacific and enhancements in the East Pacific and South Atlantic. This method is complementary to budget-based global OH constraints and can help elucidate the spatial and temporal variability of OH production and methane loss. © 2019 National Academy of Sciences. All rights reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163554
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Wolfe, G.M., Joint Center for Earth Systems Technology, University of Maryland, Baltimore County, Baltimore, MD 21228, United States, Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Nicely, J.M., Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States, Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20740, United States; Clair, J.M.S., Joint Center for Earth Systems Technology, University of Maryland, Baltimore County, Baltimore, MD 21228, United States, Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Hanisco, T.F., Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Liao, J., Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States, Universities Space Research Association, Columbia, MD 21046, United States; Oman, L.D., Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Brune, W.B., Department of Meteorology and Atmospheric Science, Pennsylvania State University, University Park, PA 16801, United States; Miller, D., Department of Meteorology and Atmospheric Science, Pennsylvania State University, University Park, PA 16801, United States; Thames, A., Department of Meteorology and Atmospheric Science, Pennsylvania State University, University Park, PA 16801, United States; Abad, G.G., Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, United States; Ryerson, T.B., Chemical Sciences Division, National Oceanic and Atmospheric Administration (NOAA) Earth System Research Laboratory, Boulder, CO 80305, United States; Thompson, C.R., Chemical Sciences Division, National Oceanic and Atmospheric Administration (NOAA) Earth System Research Laboratory, Boulder, CO 80305, United States, Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, United States; Peischl, J., Chemical Sciences Division, National Oceanic and Atmospheric Administration (NOAA) Earth System Research Laboratory, Boulder, CO 80305, United States, Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, United States; McCain, K., Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, United States, Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO 80305, United States; Sweeney, C., Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO 80305, United States; Wennberg, P.O., Department of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States, Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125, United States; Kim, M., Department of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States; Crounse, J.D., Department of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States; Hall, S.R., Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO 80307, United States; Ullmann, K., Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO 80307, United States; Diskin, G., Atmospheric Composition, NASA Langley Research Center, Hampton, VA 23666, United States; Bui, P., Atmospheric Science, NASA Ames Research Center, Moffett Field, CA 94035, United States; Chang, C., Atmospheric Science, NASA Ames Research Center, Moffett Field, CA 94035, United States, Bay Area Environmental Research Institute, Moffett Field, CA 94952, United States; Dean-Day, J., Atmospheric Science, NASA Ames Research Center, Moffett Field, CA 94035, United States, Bay Area Environmental Research Institute, Moffett Field, CA 94952, United States

Recommended Citation:
Wolfe G.M.,Nicely J.M.,Clair J.M.S.,et al. Mapping hydroxyl variability throughout the global remote troposphere via synthesis of airborne and satellite formaldehyde observations[J]. Proceedings of the National Academy of Sciences of the United States of America,2019-01-01,166(23)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wolfe G.M.]'s Articles
[Nicely J.M.]'s Articles
[Clair J.M.S.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Wolfe G.M.]'s Articles
[Nicely J.M.]'s Articles
[Clair J.M.S.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wolfe G.M.]‘s Articles
[Nicely J.M.]‘s Articles
[Clair J.M.S.]‘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.