Physics – Geophysics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.4437t&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 23, p. 4437-4440
Physics
Geophysics
1
Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Mathematical Geophysics: Inverse Theory, Meteorology And Atmospheric Dynamics: Theoretical Modeling
Scientific paper
Dynamic equations describing photoxidation of tropospheric chemical pollutants are nonlinear, containing complex feedback loops. Such nonlinearity is known to give rise to various dynamical instabilities including multiple steady states, oscillation, and even chaos. A related type of instability, excitability, is demonstrated here using a two-variable (reduced from six) model of CH4 photoxidation in which perturbation of a stable but excitable steady state beyond a threshold is dramatically amplified before the steady state is reapproached. Such switching/amplification responses may have important implications for atmospheric/climatic modeling. A phase-plane analysis describes the origin of this excitability and suggests that it may be a relatively common phenomenon in environmental models.
Field Richard J.
Tinsley Mark R.
No associations
LandOfFree
Dynamic instability in tropospheric photochemistry: An excitability threshold does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dynamic instability in tropospheric photochemistry: An excitability threshold, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic instability in tropospheric photochemistry: An excitability threshold will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1103386