Terroir 2016 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2016 9 Climates of Wine Regions Worldwide 9 A fine-scale approach to map bioclimatic indices using and comparing dynamical and geostatistical methods

A fine-scale approach to map bioclimatic indices using and comparing dynamical and geostatistical methods


Climate, especially temperature, plays a major role in grapevine development. Several bioclimaticindices have been created to relate temperature to grapevine phenology (e.g. Winkler Index, Huglin Index, Grapevine Flowering Véraison model [GFV]). However, temperature variability can be significant at vineyard scale, so knowledge of the various climatic mechanisms leading to this variability is essential in order to improve local management of vineyards in response to climate change. Indeed, current climate change models are not accurate enough to take into account temperature variability at the vineyard scale (Dunn et al., 2015).

This study therefore proposes a method for compare regional modelling and fine-scale observations to map temperatures and bioclimatic indices at fine spatial resolution for some recent growing seasons. This study focuses on two vineyard areas, the Saint-Emilion and Pomerol region in France and the Marlborough vineyard region in New Zealand. A regression model using temperature from networks of measurements has been created in order to map temperature and bioclimatic indices at vineyard scale (100 metres for Marlborough and 25 metres for Saint-Emilion and Pomerol). To complement the field measurements, the advanced physics-based three-dimensional numerical weather model Weather Research and Forecasting – WRF (http://wrf-model.org/index.php) has been used, providing hourly meteorological parameters over a complete growing season for each site at 1, 3 and 9 and 27 kilometre resolution. The output of the WRF model provides temperature, wind speed and direction, pressure, and solar radiation data at these different resolutions.

The application of different scales of modelling allows improvement in understanding the climate component of the specific terroirs of the study areas.


Publication date: June 23, 2020

Issue: Terroir 2016

Type: Article


Renan Le Roux (1), Marwan Katurji (2), PeymanZawar-Reza (2), Laure de Rességuier (3), Andrew Sturman (2), Cornelis van Leeuwen (3), Amber Parker (4), Mike Trought (5) and Hervé Quénol (1)

(1) LETG-COSTEL, UMR 6554 CNRS, Université de Rennes 2, Place du Recteur Henri Le Moal, Rennes, France
(2) Centre for Atmospheric Research, University of Canterbury, Christchurch, New Zealand
(3) EGFV, Bordeaux Sciences Agro, INRA, Univ. Bordeaux, ISVV, F-33140 Villenave d’Ornon,France
(4) Lincoln University, P O Box 85084, Lincoln, Christchurch, New Zealand
(5) New Zealand Institute for Plant and Food Research Ltd, Blenheim, Marlborough, New Zealand

Contact the author


Climate, phenology, grapevine, bioclimatic indices, modelling


IVES Conference Series | Terroir 2016


Related articles…

Significance of factors making Riesling an iconic grape variety

Riesling is the iconic grape variety of Germany and accounts for 23% of the German viticulture acreage, which comprises 45% of the worldwide Riesling plantings. Riesling wines offer a wide array of styles from crisp sparkling wines to highly concentrated and sweet Trockenbeerenauslese or Icewines. However, its thin berry skin makes Riesling more vulnerable to detrimental environmental threats than other white wine varieties.  

Malolactic fermentation in wine production

What influence do these bacteria have on wines? What new bacteria are being studied to carry out this fermentation? Find below articles about malolactic fermentation published in our 3 media (OENO One, IVES Technical Reviews and IVES Conference Series). OENO One...

Metabolomics screening of Vitis sp. interspecific hybrids to select natural ingredients with cosmetic purposes

Introducing natural ingredients using green chemistry practices is a major challenge in cosmetics industry to follow the market trend. Among the plants of cosmetic interest, vine products show a remarkable diversity of natural substances with high potential for the cosmetic and dermatological sectors. To date, research focuses on well-known compounds like E-resveratrol and E-ε-viniferin,

WAC 2022: Abstracts are available on IVES Conference Series

In order to disseminate the scientific results presented during the WAC 2022 , the organizers have decided to share the abstracts of the oral communications and posters with Open Access on IVES Conference Series. The fifth edition of the International Conference...

Winemaking techniques and wine tasting methods at the end of the Middle Ages

Les pratiques de vinification et de dégustation du vin sont souvent perçues, à travers un discours marketing très puissant, sous l’angle d’une tradition millénaire qui perdure depuis le Moyen Âge. En Bourgogne, il est courant de rattacher les racines de ces pratiques à l’activité des institutions ecclésiastiques qui possédaient d