Terroir 2010 banner
IVES 9 IVES Conference Series 9 Grape variety identification and detection of terroir effects from satellite images

Grape variety identification and detection of terroir effects from satellite images

Abstract

Satellite images are used to determine the reflectance dependency to wavelength in different grape varieties (Cabernet-Sauvignon, Merlot, Pinot Noir, and Chardonnay). The terroir influence is investigated through study of vineyards in France, Brazil and Chile. Statistical techniques (ANOVA, cluster and discriminant analysis) are applied. Results indicate that there are consistent spectral features, mainly in the near infrared, which can lead to variety identification. These features are affected by terroir effects, since the reflectance spectra showed similarities between regions, especially for Cabernet Sauvignon; phenological factors further contribute to variety differentiation. An additional search of terroir effects is made on some plots of Sangiovese, located in Tuscany and south Brazil; in this case, differences in spectral features are more important, suggesting that clonal differences may also play a role. It is concluded that remote sensing data are effective to terroir and grape variety studies.

DOI:

Publication date: October 8, 2020

Issue: Terroir 2010

Type: Article

Authors

G. Cemin (1), J. R. Ducati (2)

(1) Instituto de Saneamento Ambiental. Universidade de Caxias do Sul. Rua Francisco Getúlio Vargas 1130, CEP 95070-560, Caxias do Sul, Brazil
(2) Centro Estadual de Pesquisas em Sensoriamento Remoto e Meteorologia. Universidade Federal do Rio Grande do Sul. Av. Bento Goncalves 9500, CEP 91501-970, Porto Alegre, Brazil

Contact the author

Keywords

remote sensing – satellite images – spectral features

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

The taste of color: how grape anthocyanin fractions affect in-mouth perceptions

Anthocyanins are responsible for the red wine color and their ability to condense with tannins is considered as a contributor in astringency reduction. However, recent studies showed the possibility of anthocyanins to influence directly the in-mouth perception of wines.

Water dynamics of Touriga-Nacional grapevines trained in cordon and guyot systems under Mediterranean climate conditions

Aims: The aims of the present study were to (1) evaluate the water dynamics of Touriga-Nacional grapevines trained to spur pruned cordon and Guyot systems and (2) assess the effect of variable water availability in a commercial vineyard located in the Demarcated Douro Region (DDR), Portugal.

IMPACT OF RHIZOPUS AND BOTRYTIS ON WINE FOAMING PROPERTIES

A lot of work has been done on the impact of Botrytis on the foam of sparkling wines. This work often concerns wines produced in cool regions, where Botrytis is the dominant fungal pathogen. However, in southern countries such as Spain, in particularly hot years such as 2022, the majority fungal pathogen is sometimes Rhizopus. Like Botrytis, Rhizopus is a fungus that produces an aspartic protease.

Beneficial effects of moderate consumption of Teran red wine on blood lipid profile: a preliminary study on healthy volunteers

Moderate wine consumption may impact several human health aspects, among others as a result of phenolic compounds present in wine and their bioactive properties. The aim of this study was to determine whether six weeks of daily, moderate Teran red wine consumption affects the levels of total cholesterol, high-density lipoprotein cholesterol – HDL, low-density lipoprotein cholesterol – LDL, and triglycerides. Sixty-eight healthy adults (46 women and 22 men) aged 25-64 years voluntarily agreed to participate in the study.

Aroma typicity of Timorasso wines: influence of ageing on volatile organic compounds and sensory descriptors

‘Timorasso’ is an autochthonous white grape variety from southern Piedmont (Italy) used for producing wines in the Colli Tortonesi product designation of origin (PDO). Over the last decade, there has been a notable rise in its production, due to the increased interest of wine enthusiasts who prized its wine distinctive ageing notes [1].