The Sensitivity Analysis of a Lake Ecosystem with the Conditional Nonlinear Optimal Perturbation Method
Item
Title (Dublin Core)
The Sensitivity Analysis of a Lake Ecosystem with the Conditional Nonlinear Optimal Perturbation Method
Description (Dublin Core)
The instability and sensitivity of a lake ecosystem to the finite-amplitude perturbations related to the initial condition and the parameter correspondingly are studied. The CNOP-I and CNOP-P methods are adopted to investigate this nonlinear system. The numerical results with CNOP-I method show that the lake ecosystem can be nonlinearly unstable with finite-amplitude initial perturbations when the nutrient loading rate is between the two bifurcation points. A large enough finite amplitude initial perturbation, that is, CNOP-I, can induce a transition from an oligotrophic (eutrophic) state to an eutrophic (oligotrophic) state. With CNOP-P method, it is shown that the lake ecosystem can be transformed from an oligotrophic (eutrophic) state to an eutrophic (oligotrophic) state with a large enough finite amplitude parameter perturbation, that is, CNOP-P, no matter how large the nutrient loading rate is.
Creator (Dublin Core)
Bo Wang
Peijun Zhang
Zhenhua Huo
Qianqian Qi
Subject (Dublin Core)
Meteorology. Climatology
QC851-999
Publisher (Dublin Core)
Hindawi Limited
Date (Dublin Core)
2012-01-01T00:00:00Z
Type (Dublin Core)
article
Identifier (Dublin Core)
1687-9309
1687-9317
10.1155/2012/562081
https://doaj.org/article/4a1822ef0c4b466899a7462f7035fded
Source (Dublin Core)
Advances in Meteorology, Vol 2012 (2012)
Language (Dublin Core)
EN
Relation (Dublin Core)
http://dx.doi.org/10.1155/2012/562081
https://doaj.org/toc/1687-9309
https://doaj.org/toc/1687-9317
Provenance (Dublin Core)
Journal Licence: CC BY