Validation of Tropospheric Emission Spectrometer (TES) measurements of the total, stratospheric, and tropospheric column abundance of ozone

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https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2007JD008801

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https://doi.org/10.1029/2007JD008801
 http://hdl.handle.net/11603/34858

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UMBC GESTAR II

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Author/Creator ORCID

https://orcid.org/0000-0002-7829-0920

Date

2008-05-07

Type of Work

journal articles
Text

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Program

Citation of Original Publication

Osterman, G. B., S. S. Kulawik, H. M. Worden, N. a. D. Richards, B. M. Fisher, A. Eldering, M. W. Shephard, et al. “Validation of Tropospheric Emission Spectrometer (TES) Measurements of the Total, Stratospheric, and Tropospheric Column Abundance of Ozone.” Journal of Geophysical Research: Atmospheres 113, no. D15 (May 7, 2008). https://doi.org/10.1029/2007JD008801.

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain

Subjects

tropospheric ozone
stratospheric ozone
total column ozone

Abstract

The Tropospheric Emission Spectrometer (TES) is an infrared, high-resolution Fourier transform spectrometer which was launched onboard NASA's Aura satellite in 2004 and is providing global, vertically resolved measurements of ozone in the troposphere. TES version 2 (V002) data profiles have been validated in the troposphere and lower stratosphere by way of comparison to ozonesondes and aircraft measurements. TES measurements also have sensitivity throughout the stratosphere, and therefore TES ozone profiles can be integrated to determine the total and stratospheric column in addition to the tropospheric column ozone values. In this work we compare the ozone in the stratosphere measured by TES to observations from the Microwave Limb Sounder (MLS) instrument in order to show the quality of the TES measurements in the stratosphere. We also compare the determination of a total column value for ozone based on the TES profiles to the column measured by the Ozone Monitoring Instrument (OMI). The TES tropospheric ozone column value is also calculated from the TES profiles and compared with column values determined from ozonesonde data. Column measurements are useful because the errors are markedly reduced from errors at the profile levels and can be used to assess both biases and quality of the TES ozone retrievals. TES observations of total or partial column ozone compare well with the other instruments but tend toward higher values than the other measurements. Specifically, TES is higher than OMI by ∼10 Dobson units (DU) for the total ozone column. TES measures higher values in the stratosphere (above 100 hPa) by ∼3 DU and measures higher ozone column values (∼4 DU) in the troposphere than ozonesondes. While the strength of the TES nadir ozone product is the vertical resolution it provides in the troposphere, a tropospheric column value derived from TES have utility in analyses using or validating tropospheric ozone residual products.