Article (Scientific journals)
Trends of ozone total columns and vertical distribution from FTIR observations at eight NDACC stations around the globe
Vigouroux, C; Blumenstock, T; Coffey, M et al.
2015In Atmospheric Chemistry and Physics, 15, p. 2915-2933
Peer Reviewed verified by ORBi
 

Files


Full Text
acp-15-2915-2015.pdf
Publisher postprint (1.44 MB)
Final paper
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
ozone; trend; remote sensing; NDACC network; FTIR; atmospheric composition
Abstract :
[en] Ground-based Fourier transform infrared (FTIR) measurements of solar absorption spectra can provide ozone total columns with a precision of 2 % but also independent partial column amounts in about four vertical layers, one in the troposphere and three in the stratosphere up to about 45 km, with a precision of 5–6 %. We use eight of the Network for the Detection of Atmospheric Composition Change (NDACC) stations having a long-term time series of FTIR ozone measurements to study the total and vertical ozone trends and variability, namely, Ny-Ålesund (79ºN), Thule (77ºN), Kiruna (68ºN), Harestua (60ºN), Jungfraujoch (47ºN), Izaña (28ºN), Wollongong (34ºS) and Lauder (45ºS). The length of the FTIR time series varies by station but is typically from about 1995 to present. We applied to the monthly means of the ozone total and four partial columns a stepwise multiple regression model including the following proxies: solar cycle, quasi-biennial oscillation (QBO), El Niño–Southern Oscillation (ENSO), Arctic and Antarctic Oscillation (AO/AAO), tropopause pressure (TP), equivalent latitude (EL), Eliassen–Palm flux (EPF), and volume of polar stratospheric clouds (VPSC). At the Arctic stations, the trends are found mostly negative in the troposphere and lower stratosphere, very mixed in the middle stratosphere, positive in the upper stratosphere due to a large increase in the 1995–2003 period, and non-significant when considering the total columns. The trends for mid-latitude and subtropical stations are all non-significant, except at Lauder in the troposphere and upper stratosphere and at Wollongong for the total columns and the lower and middle stratospheric columns where they are found positive. At Jungfraujoch, the upper stratospheric trend is close to significance (+0.9 ± 1.0 %/decade). Therefore, some signs of the onset of ozone mid-latitude recovery are observed only in the Southern Hemisphere, while a few more years seem to be needed to observe it at the northern mid-latitude station.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Vigouroux, C
Blumenstock, T
Coffey, M
Errera, Q
Garcia, O
Jones, N B
Hannigan, J W
Hase, F
Liley, B
Mahieu, Emmanuel  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Mellqvist, J
Notholt, Justus
Palm, Mathias
Persson, G
Schneider, M
Servais, Christian ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Smale, D
Thölix, L
De Mazière, M
More authors (9 more) Less
Language :
English
Title :
Trends of ozone total columns and vertical distribution from FTIR observations at eight NDACC stations around the globe
Publication date :
16 March 2015
Journal title :
Atmospheric Chemistry and Physics
ISSN :
1680-7316
eISSN :
1680-7324
Publisher :
Copernicus Publications, Katlenburg-Lindau, Germany
Volume :
15
Pages :
2915-2933
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
FP7 - 284421 - NORS - Demonstration Network Of ground-based Remote Sensing Observations in support of the GMES Atmospheric Service
Funders :
CE - Commission Européenne [BE]
Available on ORBi :
since 25 September 2014

Statistics


Number of views
76 (9 by ULiège)
Number of downloads
96 (0 by ULiège)

Scopus citations®
 
60
Scopus citations®
without self-citations
26
OpenCitations
 
52

Bibliography


Similar publications



Contact ORBi