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Spatial Analysis of Climate in Winegrape Growing Regions in Portugal

Abstract

Spatial climate data at a 1 km resolution has allowed for a comprehensive mapping and assessment of viticulture DOs regions in Portugal. Overall the 50 regions and sub-regions in Portugal range from just over 1200 GDD in the Vinho Verde to just over 2300 GDD in Alentejo with 34% of the wine producing areas falling in a Region II, 28% a Region III and 30% a Region IV on the Winkler classification system. On the Huglin Index the sub-regions range from just over 1600 to nearly 2700, representing HI climate types from Very Cool to Very Warm. For the GST index the sub-regions have a range from 15.7ºC to 20.7ºC, representing Cool, Intermediate and Hot climate maturity suitability on the GST. However, the results show that the spatial variability of climate within the regions, can be significant, with some regions representing as many as five climate classes suitable for viticulture. The results show how important it is to develop within region assessments of climate suitability for viticulture. Finally the diversity of climate types suitable for viticulture found in the Portuguese Wine Regions shows the broad range of wine styles that can be produced in the country.

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Publication date: August 27, 2020

Issue: Terroir 2012

Type: Article

Authors

Gregory V. JONES (1), Fernando ALVES (2)

(1) Department of Environmental Studies, Southern Oregon University, 1250 Siskiyou Boulevard, Ashland, Oregon 97520, USA
(2) ADVID, Associação para o Desenvolvimento da Viticultura Duriense, Qta. St. Maria, APT 137, 5050-106 Godim, Portugal

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Keywords

viticulture, wine, climate, Portugal

Tags

IVES Conference Series | Terroir 2012

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