New evidence on using expert ratings to proxy for wine quality in climate change research

Q2 Agricultural and Biological Sciences

Journal of Wine Research Pub Date : 2023-04-03 DOI:10.1080/09571264.2023.2205117

Amogh P. Kumar, Laura Meriluoto, Richard Watt

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Abstract

ABSTRACT This paper provides new evidence on the validity of using expert ratings of wine as a measure of wine quality for predicting the effects of climate change on the wine industry. We used Bob Campbell’s ratings of New Zealand wines to look for a relationship between the ratings and climatic variables that predicts a plausible optimal growing-season temperature for the main wine varieties and wine regions in New Zealand. Such a relationship can be used to forecast the effects of climate change on wine quality to better understand when wineries need to adapt to a warming climate. We used both individual wine ratings and overall vintage ratings, averaged by region and variety from the individual ratings, to compare in a controlled setting their success in predicting plausible optimal temperatures. We find that using the vintage ratings produces substantially more precise and plausible findings than using the individual ratings. We conclude that there is great potential in using vintage data constructed from expert ratings for individual wines for climate change research.

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在气候变化研究中使用专家评级来代表葡萄酒质量的新证据

本文提供了新的证据，证明使用葡萄酒专家评级作为葡萄酒质量的衡量标准来预测气候变化对葡萄酒行业的影响的有效性。我们使用Bob Campbell对新西兰葡萄酒的评级来寻找评级和气候变量之间的关系，这些变量可以预测新西兰主要葡萄酒品种和葡萄酒产区的最佳生长季节温度。这种关系可以用来预测气候变化对葡萄酒质量的影响，以便更好地了解酿酒厂何时需要适应气候变暖。我们使用了个别葡萄酒评级和总体年份评级，并按地区和品种进行了平均，以在受控环境下比较它们在预测合理最佳温度方面的成功程度。我们发现，与使用个人评分相比，使用复古评分产生的结果更加精确和可信。我们的结论是，利用专家对个别葡萄酒的评级构建的年份数据进行气候变化研究具有很大的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Wine Research Agricultural and Biological Sciences-Horticulture

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： The Journal of Wine Research is an international and multidisciplinary refereed journal publishing the results of recent research on all aspects of viticulture, oenology and the international wine trade. It was founded by the Institute of Masters of Wine to enhance and encourage scholarly and scientific interdisciplinary research in these fields. The main areas covered by the journal include biochemistry, botany, economics, geography, geology, history, medicine, microbiology, oenology, psychology, sociology, marketing, business studies, management, wine tasting and viticulture.