气候变化领域集成服务门户(CCPortal): Atmospheric circulation variability and vintage port wine

CCPortal

DOI	10.3354/cr01513
	Atmospheric circulation variability and vintage port wine
	Vega A.J.; Ates S.A.; Rohli R.V.
发表日期	2018
ISSN	0936-577X
起始页码	117
结束页码	130
卷号	75 期号:2
英文摘要	The success of viticulture is inexorably tied to atmospheric conditions during the growing season. Previous work has tied observed and general circulation model (GCM)-projected changes in atmospheric variables to wine production in Europe. This research uses a synoptic climatological approach to examine the role of atmospheric circulation variability on wine production in the Douro Valley region of Portugal. Of particular interest is the atmospheric contribution to ‘vintage Port’ production. Vintage Port years are declared periodically and coincide with particularly high quality grape harvests. Results suggest that temperatures and potential evapotranspiration (PET) have increased significantly overall for the region, with the signal being present in both non-vintage and vintage years, while precipitation has remained statistically constant over the study period. Circulation analysis indicates that early winter ridging and drying offset by late winter pressure decreases and frontal cyclone tracking over the region is important during vintage years. Additionally, the analysis suggests that March synoptic drying followed by a significantly reduced PET during summer is important in vintage years. When followed by autumn maximum air temperatures and evapotranspiration rates that are significantly higher than normal, vintage Port results. Such conditions favor summer water retention in grapes, which increases the concentration of sugars through drying immediately prior to harvest. These results may be useful in alerting producers about quality of the upcoming harvest, especially as long-lead climate outlooks continue to improve. © Inter-Research 2018.
英文关键词	Atmospheric circulation variability; Port wine; Portugal; Viticulture
语种	英语
scopus关键词	atmospheric circulation; cyclone; general circulation model; growing season; potential evapotranspiration; seasonal variation; vine; viticulture; water retention; wine; Douro Valley; Portugal; Vitaceae
来源期刊	Climate Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146975
作者单位	Department of Biology and Geoscience, Clarion University of Pennsylvania, Clarion, PA 16214, United States; Department of Geography and Anthropology, Louisiana State University, Baton Rouge, LA 70803-4105, United States
推荐引用方式 GB/T 7714	Vega A.J.,Ates S.A.,Rohli R.V.. Atmospheric circulation variability and vintage port wine[J],2018,75(2).
APA	Vega A.J.,Ates S.A.,&Rohli R.V..(2018).Atmospheric circulation variability and vintage port wine.Climate Research,75(2).
MLA	Vega A.J.,et al."Atmospheric circulation variability and vintage port wine".Climate Research 75.2(2018).