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…

From average to individual fruit, a paradigm shift for accurate analysis of water accumulation and primary metabolism in developing berries

Presentknowledge about grape development is mainly driven by the premise that a typical berry would follow the same kinetics as the population average

Read More

MAPPING THE CONCENTRATIONS OF GASEOUS ETHANOL IN THE HEADSPACE OF CHAMPAGNE GLASSES THROUGH INFRARED LASER ABSORPTION SPECTROSCOPY

Under standard wine tasting conditions, volatile organic compounds (VOCs) responsible for the wine’s bouquet progressively invade the glass headspace above the wine surface. Most of wines being complex water/ethanol mixtures (with typically 10-15 % ethanol by volume), gaseous ethanol is therefore undoubtedly the most abundant VOC in the glass headspace [1]. Yet, gaseous ethanol is known to have a multimodal influence on wine’s perception [2]. Of particular importance to flavor perception is the effect of ethanol on the release of aroma compounds into the headspace of the beverage [1].

Read More

A combination of biotechnology tools and coopers elements for an alternative the addition of SO2 at the end of the malolactic fermentation in red wines or at the “mutage” for the “liquoreux” wines

In red wines the post-MLF SO2 addition is an essential event. It is also the case for the “mutage” during the elaboration of the “liquoreux”. At these moments SO2 plays an antimicrobial action and an antioxidant effect. But at current pH of wines, ensuring a powerful molecular SO2 has become very difficult. Recent work on Brettanomyces strains have also shown that some strains are resistant up to 1.2 mg / L of molecular SO2. It’s also the case of the some Saccharomuces or Zygosaccharomyces strains suitable to re-ferment “liquoreux” wines after the “mutage”.

Read More

Aroma profile of ‘Pedro Ximenez’ sweet musts obtained from dried grapes by different methods

Aroma fraction of musts from grapes ‘Pedro Ximenez’ traditionally sun-dried and chamber-dried at 40 ºC and at 50 ºC during 8, 5 and 4 days respectively, destined for the production of sweet wines in Montilla-Moriles region (southern Spain) was studied.

Read More

Climate change is here to stay: adapting vineyards to a warming world

As an industry that thrives more on, but may also be more affected by, vintage variation and regionality than any other agricultural enterprise, grape and wine production is ever more being impacted challenged by climate change.

Read More