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| Titel |
Global carbon monoxide products from combined AIRS, TES and MLS measurements on A-train satellites |
| VerfasserIn |
J. X. Warner, R. Yang, Z. Wei, F. Carminati, A. Tangborn, Z. Sun, W. Lahoz, J.-L. Attié, L. El Amraoui, B. Duncan |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 14, no. 1 ; Nr. 14, no. 1 (2014-01-03), S.103-114 |
| Datensatznummer |
250118245
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| Publikation (Nr.) |
 copernicus.org/acp-14-103-2014.pdf |
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| Zusammenfassung |
| This study tests a novel methodology to add value to satellite data sets. This
methodology, data fusion, is similar to data assimilation, except that the
background model-based field is replaced by a satellite data set, in this case
AIRS (Atmospheric Infrared Sounder) carbon monoxide (CO) measurements. The
observational information comes from CO measurements with lower spatial
coverage than AIRS, namely, from TES (Tropospheric Emission Spectrometer) and
MLS (Microwave Limb Sounder). We show that combining these data sets with data
fusion uses the higher spectral resolution of TES to extend AIRS CO
observational sensitivity to the lower troposphere, a region especially
important for air quality studies. We also show that combined CO measurements
from AIRS and MLS provide enhanced information in the UTLS (upper
troposphere/lower stratosphere) region compared to each product individually.
The combined AIRS–TES and AIRS–MLS CO products are validated against DACOM
(differential absorption mid-IR diode laser spectrometer) in situ CO
measurements from the INTEX-B (Intercontinental Chemical Transport
Experiment: MILAGRO and Pacific phases) field campaign and in situ data from
HIPPO (HIAPER Pole-to-Pole Observations) flights. The data fusion results
show improved sensitivities in the lower and upper troposphere (20–30%
and above 20%, respectively) as compared with AIRS-only version 5 CO
retrievals, and improved daily coverage compared with TES and MLS CO data. |
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