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Tracking the Paci fi c Decadal Precession
| Content Provider | Semantic Scholar |
|---|---|
| Author | Anderson, Bruce T. Furtado, Jason C. Lorenzo, Emanuele Di Gianotti, Daniel Short |
| Copyright Year | 2017 |
| Abstract | Events of recent years—including extended droughts across California, record fires across western Canada, and destabilization of marine ecosystems—highlight the profound impact of multiannual to decadal-scale climate shifts upon physical, biological, and socioeconomic systems. While previous research has focused on the influence of decadal-scale climate oscillations such as the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation/Interdecadal Pacific Oscillation, recent research has revealed the presence of a quasi-decadal mode of climate variability that, unlike the quasi-stationary standing wave-like structure of the oscillatory modes, involves a progression of atmospheric pressure anomalies around the North Pacific, which has been termed the Pacific Decadal Precession (PDP). In this paper we develop a set of methods to track the spatial and temporal evolutions of the PDP within historical observations as well as numerical model simulations. In addition, we provide amethod that approximates the time evolution of the PDP across the full period of available data for real-timemonitoring of the PDP. Through the development of these tracking methods, we hope to provide the community with a consistent framework for future analysis and diagnosis of the PDP’s characteristics and underlying processes, thereby avoiding the use of different, and disparate, phenomenologicaland mathematical-based indices that can confound our understanding of the PDP and its evolution. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ocean.eas.gatech.edu/manu/papers/PDFs/Anderson-2017-Tracking-the-Pacific-Decadal-Pre.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
