Premium
Ozone‐CO correlations determined by the TES satellite instrument in continental outflow regions
Author(s) -
Zhang Lin,
Jacob Daniel J.,
Bowman Kevin W.,
Logan Jennifer A.,
Turquety Solène,
Hudman Rynda C.,
Li Qinbin,
Beer Reinhard,
Worden Helen M.,
Worden John R.,
Rinsland Curtis P.,
Kulawik Susan S.,
Lampel Michael C.,
Shephard Mark W.,
Fisher Brendan M.,
Eldering Annmarie,
Avery Melody A.
Publication year - 2006
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2006gl026399
Subject(s) - troposphere , atmospheric sciences , environmental science , tropospheric ozone , ozone , outflow , chemical transport model , satellite , ozone monitoring instrument , total ozone mapping spectrometer , climatology , range (aeronautics) , meteorology , ozone layer , physics , geology , materials science , composite material , astronomy
Collocated measurements of tropospheric ozone (O 3 ) and carbon monoxide (CO) from the Tropospheric Emission Spectrometer (TES) aboard the EOS Aura satellite provide information on O 3 ‐CO correlations to test our understanding of global anthropogenic influence on O 3 . We examine the global distribution of TES O 3 ‐CO correlations in the middle troposphere (618 hPa) for July 2005 and compare to correlations generated with the GEOS‐Chem chemical transport model and with ICARTT aircraft observations over the eastern United States (July 2004). The TES data show significant O 3 ‐CO correlations downwind of polluted continents, with dO 3 /dCO enhancement ratios in the range 0.4–1.0 mol mol −1 and consistent with ICARTT data. The GEOS‐Chem model reproduces the O 3 ‐CO enhancement ratios observed in continental outflow, but model correlations are stronger and more extensive. We show that the discrepancy can be explained by spectral measurement errors in the TES data. These errors will decrease in future data releases, which should enable TES to provide better information on O 3 ‐CO correlations.