Climatic shifts

Increased aeolian activity during climatic regime shifts

Structural break models of climatic regime-shifts: claims and forecasts

A Chow test for structural breaks in the surface temperature series is used to investigate two common claims about global warming. Quirk (2009) proposed that the increase in Australian temperature from 1910 to the present was largely confined to a regime-shift in the Pacific Decadal Oscillation (PDO) between 1976 and 1979. The test finds a step change in both Australian and global temperature t...

Wavelet-Based Multifractal Analysis on Climatic Regime Shifts

A climatic regime shift is characterized by an abrupt transition from one quasi-steady climatic state to another. We attempted to explain the change of multifractal behavior of climate indices when a regime shift occurred. We used the wavelet transform method to analyze the multifractal behaviors of the El Niño/Southern Oscillation (ENSO) index (Niño3.4 index), Pacific Decadal Oscillation (PDO)...

Climatic effects on regime shifts in lakes: A reply

, AND OTHERS. 1994a. Long term responses to fish-stock reduction in small shallow lakes—interpretation of 5-year results of 4 biomanipulation cases in the Netherlands and Denmark. Hydrobiologia 276: 457–466. , AND OTHERS. 1994b. The consequences of a drastic fish stock reduction in the large shallow lake Wolderwijd, The Netherlands—can we understand what happened? Hydrobiologia 276: 31–42. SCHE...

Climatic and evolutionary drivers of phase shifts in the plague epidemics of colonial India.

Immune heterogeneity in wild host populations indicates that disease-mediated selection is common in nature. However, the underlying dynamic feedbacks involving the ecology of disease transmission, evolutionary processes, and their interaction with environmental drivers have proven challenging to characterize. Plague presents an optimal system for interrogating such couplings: Yersinia pestis t...