Spatial and temporal analysis of climate extremes in Bourgogne-Franche-Comté: impacts on viticulture

Started in october 2018

Funding: Région BFC, projet Envergure 2018 ValeaClim

Supervisors: Yves Richard and Benjamin Bois

Abstract

Spatial and temporal analysis of climate extremes in Bourgogne-Franche-Comté: impacts on viticulture
The scientific literature, which is widely available on climate change (see the considerable synthesis of the IPCC reports in 2014), does not currently allow a clear reading of the evolution of viticulture risks related to climate change. thermal extremes (water and thermal stress, late cold waves causing freezing or physiological imbalances …) Certainly, the near-universal increase, observed and expected in the future, in the intensity and frequency of heat waves is a consensus (Meehl and Tebaldi 2004, Fischer and Schär 2010, IPCC 2014). But concerning cold events, the analysis is more delicate. Large-scale circulation of air masses disrupted by non-uniform global warming (increased temperature in boreal polar regions) could increase extreme weather events (hot, cold, dry or humid) at mid-latitudes (Screen and Simmonds 2014). We would then observe a maintenance, or even an increase in the occurrence of cold events despite global warming and more generally increased inter-day or weekly variability, including thermal extremes impacting ecosystems. Thus, climatic risks for agriculture could increase during the 21st century. The doctoral thesis aims to study the spatial and temporal evolution of thermal extremes and the associated risks for viticulture in Bourgogne-Franche-Comté, over the period 1979-2100.

extrait:

lien_externe:

titre:

Analyse spatiale et temporelle des extrêmes climatiques en Bourgogne-Franche-Comté : impacts sur la viticulture

date_de_debut_these:

octobre 2018

nom:

Gavrilescu

date_de_debut_these_numerique:

201810

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kc_raw_content:

Spatial and temporal analysis of climate extremes in Bourgogne-Franche-Comté: impacts on viticulture

Started in october 2018

Funding: Région BFC, projet Envergure 2018 ValeaClim

Supervisors: Yves Richard and Benjamin Bois

 

Abstract

Spatial and temporal analysis of climate extremes in Bourgogne-Franche-Comté: impacts on viticulture
The scientific literature, which is widely available on climate change (see the considerable synthesis of the IPCC reports in 2014), does not currently allow a clear reading of the evolution of viticulture risks related to climate change. thermal extremes (water and thermal stress, late cold waves causing freezing or physiological imbalances ...) Certainly, the near-universal increase, observed and expected in the future, in the intensity and frequency of heat waves is a consensus (Meehl and Tebaldi 2004, Fischer and Schär 2010, IPCC 2014). But concerning cold events, the analysis is more delicate. Large-scale circulation of air masses disrupted by non-uniform global warming (increased temperature in boreal polar regions) could increase extreme weather events (hot, cold, dry or humid) at mid-latitudes (Screen and Simmonds 2014). We would then observe a maintenance, or even an increase in the occurrence of cold events despite global warming and more generally increased inter-day or weekly variability, including thermal extremes impacting ecosystems. Thus, climatic risks for agriculture could increase during the 21st century. The doctoral thesis aims to study the spatial and temporal evolution of thermal extremes and the associated risks for viticulture in Bourgogne-Franche-Comté, over the period 1979-2100.