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Home
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Working Papers
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A climatic classification of the world’s wine regions

Working Paper No. 271

Published: 2022
Category:
Economics

A climatic classification of the world’s wine regions

German Puga, Kym Anderson, Gregory Jones, Firmin Doko Tchatoka & Wendy Umberger
Full Text PDF
Abstract
Using a dataset with 16 climate variables for locations representing 813 wine regions that cover 99% of the world’s winegrape area, we employ principal component analysis (PCA) for data reduction and cluster analysis for grouping similar regions. The PCA resulted in three components explaining 89% of the variation in the data, with loadings that differentiate between locations that are warm/dry from cool/wet, low from high diurnal temperature ranges, low from high nighttime temperatures during ripening, and low from high vapor pressure deficits. The cluster analysis, based on these three principal components, resulted in three clusters defining wine regions globally with the results showing that premium wine regions can be found across each of the climate types. This is, to our knowledge, the first such classification of virtually all of the world’s wine regions. However, with both climate change and an increasing preference for premium relative to non-premium wines, many of the world’s winegrowers may need to change their mixes of varieties, or source more of their grapes from more-appropriate climates.

Submission

Please send your papers as PDF files to the editor, Victor Ginsburgh, at vginsbur@ulb.ac.be
Papers will be quickly reviewed, prior to potential posting on the website. Decision will be to post or not, possibly with short comments, but without referee reports. The decision will be based primarily on the suitability of the paper’s topic to the aims of the Association.
Such decisions are independent of publication decisions for the Journal of Wine Economics.

Working Paper publication requires that at least one author
is a regular member of AAWE.

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