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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Southern Hemisphere Additional Ozonesondes (SHADOZ) ozone climatology (2005-2009): Tropospheric and tropical tropopause layer (TTL) profiles with comparisons to OMI-based ozone products
Journal of Geophysical Research Atmospheres, Volume 117, No. 23, Article D23301, Year 2012
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Description
We present a regional and seasonal climatology of SHADOZ ozone profiles in the troposphere and tropical tropopause layer (TTL) based on measurements taken during the first five years of Aura, 2005-2009, when new stations joined the network at Hanoi, Vietnam; Hilo, Hawaii; Alajuela/Heredia, Costa Rica; Cotonou, Benin. In all, 15 stations operated during that period. A west-to-east progression of decreasing convective influence and increasing pollution leads to distinct tropospheric ozone profiles in three regions: (1) western Pacific/eastern Indian Ocean; (2) equatorial Americas (San Cristóbal, Alajuela, Paramaribo); (3) Atlantic and Africa. Comparisons in total ozone column from soundings, the Ozone Monitoring Instrument (OMI, on Aura, 2004-) satellite and ground-based instrumentation are presented. Most stations show better agreement with OMI than they did for EP/TOMS comparisons (1998-2004; Earth-Probe/Total Ozone Mapping Spectrometer), partly due to a revised above-burst ozone climatology. Possible station biases in the stratospheric segment of the ozone measurement noted in the first 7 years of SHADOZ ozone profiles are re-examined. High stratospheric bias observed during the TOMS period appears to persist at one station. Comparisons of SHADOZ tropospheric ozone and the daily Trajectory-enhanced Tropospheric Ozone Residual (TTOR) product (based on OMI/MLS) show that the satellite-derived column amount averages 25% low. Correlations between TTOR and the SHADOZ sondes are quite good (typical r
2
= 0.5-0.8), however, which may account for why some published residual-based OMI products capture tropospheric interannual variability fairly realistically. On the other hand, no clear explanations emerge for why TTOR-sonde discrepancies vary over a wide range at most SHADOZ sites. © 2012. American Geophysical Union. All Rights Reserved.
Authors & Co-Authors
Thompson, Anne Mee
United States, University Park
Pennsylvania State University
Miller, Sonya K.
United States, University Park
Pennsylvania State University
Tilmes, Simone
United States, Boulder
The Earth and Sun Systems Laboratory
Kollonige, Debra E.
United States, University Park
Pennsylvania State University
Witte, Jacquelyn C.
United States, Lanham
Science Systems and Applications, Inc. Ssai
United States, Greenbelt
Nasa Goddard Space Flight Center
Oltmans, S. J.
United States, Washington, D.c.
National Oceanic and Atmospheric Administration
United States, Boulder
University of Colorado Boulder
Johnson, Bryan J.
United States, Washington, D.c.
National Oceanic and Atmospheric Administration
Fujiwara, Masatomo
Japan, Sapporo
Hokkaido University
Schmidlin, Francis J.
United States, Washington, D.c.
National Aeronautics and Space Administration
Coetzee, Gerrie J.R.
South Africa, Pretoria
South African Weather Service
Komala, Ninong
Indonesia, Central Jakarta
Lembaga Penerbangan Dan Antariksa Nasional
Maata, Matakite
Fiji, Suva
University of the South Pacific
Bt Mohamad, Maznorizan
Malaysia, Putrajaya
Kemeneterian Sains, Teknologi Dan Inovasi
Nguyo, J.
Kenya, Nairobi
Kenya Meteorological Department
Mutai, Charles
Kenya, Nairobi
Kenya Meteorological Department
Ogino, Shinya
Japan, Kobe
Kobe University
Da Silva, F. Raimundo
Brazil, Sao Jose Dos Campos
Instituto Nacional de Pesquisas Espaciais
Paes Leme, Neusa Maria
Brazil, Sao Jose Dos Campos
Instituto Nacional de Pesquisas Espaciais
Posny, Françoise
France, Saint-denis
Université de la Réunion
Scheele, Rinus
Netherlands, De Bilt
Royal Netherlands Meteorological Institute
Selkirk, Henry B.
United States, Columbia
Universities Space Research Association
Shiotani, Masato
Japan, Kyoto
Kyoto University
Stbi, René
Switzerland, Zurich
Federal Office of Meteorology and Climatology Meteoswiss
Levrat, Gilbert
Switzerland, Zurich
Federal Office of Meteorology and Climatology Meteoswiss
Calpini, B.
Switzerland, Zurich
Federal Office of Meteorology and Climatology Meteoswiss
Thouret, Valérie
France, Toulouse
Université Fédérale Toulouse Midi-pyrénées
Tsuruta, Haruo
Japan, Tokyo
The University of Tokyo
Canossa, Jessica Valverde
Costa Rica, Heredia
Universidad Nacional
Vömel, Holger
Germany, Offenbach
Deutscher Wetterdienst
Yonemura, S.
Japan, Tsukuba
Institute for Agro-environmental Sciences, Naro
Diaz, Jorge Andrés
Costa Rica, San Jose
Universidad de Costa Rica
Tan Thanh, Nguyen T.
Viet Nam, Hanoi
Ministry of Natural Resources and Environment, Vietnam
Thuy Ha, Hoang T.
Viet Nam, Hanoi
Ministry of Natural Resources and Environment, Vietnam
Statistics
Citations: 70
Authors: 33
Affiliations: 27
Identifiers
Doi:
10.1029/2011JD016911
ISSN:
01480227
Research Areas
Environmental
Study Locations
Benin