DOI: 10.1029/2018JD028465
Scopus记录号: 2-s2.0-85048945548
论文题名: Characterizing Global Ozonesonde Profile Variability From Surface to the UT/LS With a Clustering Technique and MERRA-2 Reanalysis
作者: Stauffer R.M. ; Thompson A.M. ; Witte J.C.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 11 起始页码: 6213
结束页码: 6229
语种: 英语
英文关键词: Madden-Julian oscillations
; MERRA-2
; ozonesondes
; self-organizing maps
; tropical ozone
; UT/LS ozone
Scopus关键词: biomass burning
; carbon monoxide
; convection
; global climate
; Madden-Julian oscillation
; map
; mixing ratio
; Northern Hemisphere
; ozone
; ozonesonde
; satellite data
; seasonality
; stratosphere
; tropical environment
; troposphere
英文摘要: Our previous studies employing the self-organizing map (SOM) clustering technique to ozonesonde data have found significant links among meteorological and chemical regimes, and the shape of the ozone (O3) profile from the troposphere to the lower stratosphere. Those studies, which focused on specific northern hemisphere midlatitude geographical regions, demonstrated the advantages of SOM clustering by quantifying O3 profile variability and the O3/meteorological correspondence. We expand SOM to a global set of ozonesonde profiles spanning 1980 to present from 30 sites to summarize the connections among O3 profiles, meteorology, and chemistry, using the Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2) reanalysis and other ancillary data. Four clusters of O3 mixing ratio profiles from the surface to the upper troposphere/lower stratosphere (UT/LS) are generated for each site, which show dominant profile shapes and typical seasonality (or lack thereof) that generally correspond to latitude (i.e., tropical, subtropical, midlatitude, and polar). Examination of MERRA-2 output reveals a clear relationship among SOM clusters and covarying meteorological fields (geopotential height, potential vorticity, and tropopause height) for polar and midlatitude sites. However, these relationships break down within ±30° latitude. Carbon monoxide satellite data, along with velocity potential, a proxy for convection, calculated from MERRA-2 wind fields assist characterization of the tropical and subtropical sites, where biomass burning and convective transport linked to the Madden-Julian oscillation (MJO) dominate O3 variability. In addition to geophysical characterization of O3 profile variability, these results can be used to evaluate chemical transport model output and satellite measurements of O3 profiles. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113696
Appears in Collections: 气候减缓与适应
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作者单位: Universities Space Research Association, Columbia, MD, United States; NASA/Goddard Space Flight Center, Greenbelt, MD, United States; Science Systems and Applications, Inc., Lanham, MD, United States
Recommended Citation:
Stauffer R.M.,Thompson A.M.,Witte J.C.. Characterizing Global Ozonesonde Profile Variability From Surface to the UT/LS With a Clustering Technique and MERRA-2 Reanalysis[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(11)