GiESCO 2019 banner
IVES 9 IVES Conference Series 9 GiESCO 9 GiESCO 2019 9 Climate change 9 Using remote sensing to quantify the temporal and spatial effects of extreme weather events in vineyards

Using remote sensing to quantify the temporal and spatial effects of extreme weather events in vineyards

Abstract

Introduction -The increasing frequency of extreme weather events (EWE) represents a severe threat to viticulture. The accurate and early assessment of plant stress condition offers substantial advantages to minimize the effects of EWE. Vegetation indices obtained by remote sensing could provide useful information for early detection and quantification of abiotic stresses.

Methods ‐ The analysis assessed several vineyards in Italy and Australia recently affected by EWE (2016‐ 18). The spatio‐temporal pattern of EWE (heatwaves, late frost) and their effects on vineyards were assessed by analysing the evolution of specific vegetation indices calculated using satellite imagery. The magnitude of indices variations was used to quantify the extent of canopy damage. Temporal variations were used to calculate the time necessary for complete recovery of the plants.
Results ‐ Different spectral bands (NIR, red edge, SWIR, green and red) and several vegetation indices provided information to quantify the extension of the areas damaged by EWE. The comparison of the indices values and single bands in affected and unaffected areas allowed the estimation of the temporal pattern in different climate conditions of the studied areas. Specifically, it was possible to quantify the recovery time, needed by plants to return to an acceptable vigour after damages induced by frost. The results provided a basis for better understanding and management of EWE effects.

Discussion ‐ The implementation of remote sensing techniques is widely used to monitor water status and spatial variability of the vineyards. By contrast, there is less application of these tools for monitoring effects and damages due to EWE. The results of this study demonstrate that the analysis of vegetation indices computed from remote sensing imagery can provide factual information of the spatio‐temporal pattern of vineyards affected by EWE. The methodology established could be used to support decision‐ making towards calamity alleviation, insurance services and recovery managemen

Download the PDF

DOI:

Publication date: June 19, 2020

Issue: GiESCO 2019

Type: Article

Authors

Alessia COGATO1, Massimiliano DE ANTONI MIGLIORATI2, Vinay PAGAY3, Francesco MARINELLO1, Franco MEGGIO4, Peter GRACE2

(1) University of Padova, TESAF, Viale dell’Università 16, 35020 Padova, Italy
(2)Queensland University of Technology QUT,2 George St, Brisbane City QLD 4000, Australia
(3)The University of Adelaide, Adelaide, South Australia 5005, Australia
(4) University of Padova, DAFNAE, Viale dell’Università 16, 35020 Padova, Italy

Contact the author

Keywords

Grapevine,Extreme weather events, Climate change, Remote sensing, Spatio‐temporal pattern

Tags

GiESCO 2019 | IVES Conference Series

Citation

Related articles…

Assessing the effect of oak derived aromas on mouthfeel perception in Chardonnay wine

Mouthfeel is an important quality parameter for Chardonnay wines, particularly those aged in oak. While research on mouthfeel has traditionally focused on the impact of non-aromatic compounds, the role of aroma compounds has largely been over looked. However, in wine as well as other food interactions between retronasal aroma and mouthfeel have been noted. The goal of this research was to investigate the impact of wine aroma on the perception of mouthfeel. Because of the importance of oak aging in the development of Chardonnay mouthfeel, the impact of oak aromas on perceived mouthfeel was explored. Aroma compounds associated with oak (ethyl palmitate, eugenol, furfural, isoeugenol, syringaldehyde, vanillin and whiskey lactone) were added to two different Chardonnay wines; one with no oak influence and one fermented in neutral oak. Low and high concentrations of the compounds were added based on concentrations typically found in barrel aged Chardonnay wine.

Read More

First large-scale study of thiol precursor distribution in red grape berry compartments and implications for thiol-type red wine production

Climate change and the growing need to reduce the use of phytosanitary products demand the exploration of disease-resistant grape varieties and/or adapted to drought conditions.

Read More

Botrytis cinerea: Coconut or Catastrophe? Quantification of γ-Nonalactone in Botrytised and Non-Botrytised New Zealand Wines

g-Nonalactone has been identified as a significant contributor to the aroma profile of a range of wines and is associated with stonefruit and coconut descriptors.

Read More

Microbial metagenomics of vineyard soils and wine terroir

Aims: The aims of this study were to (i) characterize bacterial and fungal communities in selected Australian vineyard soils and (ii) determine if the soil microbiome composition and diversity varied between different zones within a vineyard. 

Read More

The pyramidal organization of AOC in France: a process of identification and valorisation of terroirs

English version: Result of their history, some famous French wine countries such as Burgundy, Bordeaux or Alsace, have a hierarchical organization of their Appellations of Controlled Origin (AOC): AOC regional, communal, Premier Cru, Grand Cru.

Read More