Tripoles: A New Class of Climate Teleconnections
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Tripoles: A New Class of Climate Teleconnections
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2015-12-11
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Report
Abstract
Teleconnections in climate represent a persistent and large-scale temporal
connection in a given climate variable between two distant geographical regions.
They are known to impact and explain the variability in climate of many regions
across the globe and have been a subject of interest to climatologists. Traditionally,
climate teleconnections have been studied as a persistent relationship between a pair
of geographical regions (e.g. North Atlantic Oscillation (NAO), and El-Nino Southern
Oscillation (ENSO)). In this report, we define a new class of climate teleconnections
which we refer to as tripoles that capture climatic relationships between three regions,
in contrast to teleconnections that are traditionally defined using only two regions.
We further provide a categorization of tripoles based on pairwise relationships between
the three participating regions and propose a shared nearest neighbor (SNN) graph-based
approach to find tripoles in a given spatio-temporal dataset.
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Agrawal, Saurabh; Atluri, Gowtham; Liess, Stefan; Chatterjee, Snigdhansu; Kumar, Vipin. (2015). Tripoles: A New Class of Climate Teleconnections. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/215985.
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