Lagrangian tracer homogenization and dispersion in a simplified atmospheric GCM

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

[img]
Preview
Text
ncc8461.pdf - Published Version

Download (2MB) | Preview
Official URL: https://www.sif.it/riviste/sif/ncc/econtents/2000/...

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
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

Actions (login required)

View Item View Item