Long-range correlations in 20 transform infrared, satellite,
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TitleLong-range correlations in 20 transform infrared, satellite, and modeled CO in the Southern HemisphereAbstractWe use Fourier transform infrared ground-based measurements and satellite and model data to assess long-range correlations in tropospheric carbon monoxide. We find that CO columns measured in New Zealand correlate well with those measured in Antarctica, if a transport-related lag is taken into account. The model suggests that this long-range correlation is part of a mode of anomalous CO comprising almost the whole southern extratropics, which is linked to biomass burning in the southern continents. No such mode is modeled for the Northern Hemisphere. The area of long-range correlations maximizes for the southern subtropical Pacific, which is identified as an advantageous location for a hypothetical new measurement station. The satellite data (produced by the Measurements of Pollution in the Troposphere (MOPITT) instrument) partially confirm these findings but with generally reduced correlations. In particular, the satellite data suggest no long-range correlation at high latitudes. This is partially explained in terms of retrieval limitations and partially reflects a model deficiency. Copyright 2012 by the American Geophysical Union.AcknowledgementsWe thank the New Zealand Ministry of Science and Innovation for funding this research under the DMGC program. We also thank the Australian Research Council for funding the Wollongong measurements as part of the project DP110101948. We acknowledge the UK Met Office for use of the Unified Model. Furthermore, we acknowledge usage of MOPITT version 4 data which were obtained from the NASA Langley Research Center Atmospheric Science Data Center.
TypeArticleCitationMorgenstern, O., Zeng, G., Wood, S., Robinson, J., Smale, D., Paton-Walsh, C., Jones, N. and Griffith, D. (2012). Long-range correlations in 20 transform infrared, satellite, and modeled CO in the Southern Hemisphere. Journal of Geophysical Research Atmospheres, 117(11) IdentifierMorgenstern2012Relevancerank3
