Publication Abstracts

Holzer and Hall 2008

Holzer, M., and T.M. Hall, 2008: Tropospheric transport climate partitioned by surface origin and transit time. J. Geophys. Res., 113, D08104, doi:10.1029/2007JD009115.

We perform the first analysis of intercontinental tropospheric transport using the global boundary-propagator Green function, G, which partitions air at every point and time according to both the transit time since last surface contact and the location of that contact. We compute G for a three-year period with the MATCH model driven by NCEP reanalyses. Last contact time is resolved in 3-day intervals, and last-contact location is resolved using a global surface tiling consisting of 41 patches concentrated in the Northern Hemisphere. The transport climate is quantified for four midlatitude receptor regions in terms of the seasonal-mean surface-origin and transit-time partitioning of the column burden, the surface flux of newly arriving air, and the distribution of airmass in transit from source to receptor surface. At long transit times a nearly receptor independent pattern of last contact location is governed by where air is injected into the upper troposphere by deep convection and the high terrain of Tibet. The receptor origin composition of the column burden changes only slowly after ∼40 days for winter and fall, while the composition of the flux onto the receptor continues to change at ∼60 days. European and SE Asian air contribute comparably to the flux onto eastern N America, in spite of SE Asian air having the dominant burden. The flux of European air onto SE Asia in winter and fall is larger than the flux of SE Asian air onto Europe. The surface-to-surface transport mass distribution, R, is used to identify transit-time dependent source-receptor teleconnections.

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BibTeX Citation

@article{ho07300k,
  author={Holzer, M. and Hall, T. M.},
  title={Tropospheric transport climate partitioned by surface origin and transit time},
  year={2008},
  journal={J. Geophys. Res.},
  volume={113},
  pages={D08104},
  doi={10.1029%2F2007JD009115},
}

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RIS Citation

TY  - JOUR
ID  - ho07300k
AU  - Holzer, M.
AU  - Hall, T. M.
PY  - 2008
TI  - Tropospheric transport climate partitioned by surface origin and transit time
JA  - J. Geophys. Res.
VL  - 113
SP  - D08104
DO  - 10.1029%2F2007JD009115
ER  -

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