This paper presents a definition of bifurcation-type abrupt changes based on the bifurcation features Lorenz trajectories. These are result transition behavior dynamical system trajectories among different equilibrium regions. We demonstrate that these jumps can better reflect nature change. In analyzing equation trajectories, method for detecting is presented. A numerical solution adopted, usi...

Detection of abrupt change is a key issue for understanding the facts and trends of climate change, but it is also a difficult task in practice. The Mann-Kendall (MK) test is commonly used for treating the issue, while the results are usually affected by the correlation and seasonal characters and sample size of series. This paper proposes a discrete wavelet entropy-aided approach for abrupt ch...