Bagliani, M. and Fraedrich, K. and Von Hardenberg, J. and Lunkeit, F. (2000) Lagrangian tracer homogenization and dispersion in a simplified atmospheric GCM. Il nuovo cimento C, 23 C (4). pp. 433-448. ISSN 1826-9885
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Abstract
Lagrangian transport in the atmosphere is numerically studied by using a simplified general circulation model (SGCM) with Newtonian cooling and Rayleigh friction. Long-term Lagrangian behaviour is analyzed by determining hemispheric and global homogenization times and by studying the time evolution of tracer distributions. At short times, the properties of absolute dispersion are considered. The tracer dynamics reveals the presence of transport barriers associated with slow inter-hemispheric and troposphere-stratosphere exchanges, and with a slow crossing of the boundary between the Ferrel and Hadley cells.
| Item Type: | Article |
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| Uncontrolled Keywords: | General circulation; Particles and aerosols; Climatology |
| Subjects: | 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia |
| Depositing User: | Marina Spanti |
| Date Deposited: | 09 Mar 2020 15:31 |
| Last Modified: | 09 Mar 2020 15:31 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/13937 |
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