 |
| Titel |
Decadal record of satellite carbon monoxide observations |
| VerfasserIn |
H. M. Worden, M. N. Deeter, C. Frankenberg, M. George, F. Nichitiu, J. Worden, I. Aben, K. W. Bowman, C. Clerbaux, P. F. Coheur, A. T. J. Laat, R. Detweiler, J. R. Drummond, D. P. Edwards, J. C. Gille, D. Hurtmans, M. Luo, S. Martínez-Alonso, S. Massie, G. Pfister, J. X. Warner |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7316
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 13, no. 2 ; Nr. 13, no. 2 (2013-01-22), S.837-850 |
| Datensatznummer |
250017604
|
| Publikation (Nr.) |
 copernicus.org/acp-13-837-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| Atmospheric carbon monoxide (CO) distributions are controlled by
anthropogenic emissions, biomass burning, transport and oxidation by
reaction with the hydroxyl radical (OH). Quantifying trends in CO is
therefore important for understanding changes related to all of these
contributions. Here we present a comprehensive record of satellite
observations from 2000 through 2011 of total column CO using the available
measurements from nadir-viewing thermal infrared instruments: MOPITT, AIRS,
TES and IASI. We examine trends for CO in the Northern and Southern
Hemispheres along with regional trends for Eastern China, Eastern USA,
Europe and India. We find that all the satellite observations are consistent
with a modest decreasing trend ~ −1 % yr−1 in total column
CO over the Northern Hemisphere for this time period and a less significant,
but still decreasing trend in the Southern Hemisphere. Although decreasing
trends in the United States and Europe have been observed from surface CO
measurements, we also find a decrease in CO over E. China that, to our
knowledge, has not been reported previously. Some of the interannual
variability in the observations can be explained by global fire emissions,
but the overall decrease needs further study to understand the implications
for changes in anthropogenic emissions. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|