Abstract
La Rioja is the region where the top rated wines from Spain come from and also the origin of one of the most prestigious wines in the world. It is worldwide recognized, not only for the quality of the vine, but also for the many factors involved in the process that are controllable by the farmer, such as fertilizers, irrigation, etc. Likewise, there are other key factors, which cannot be controlled that play, however, a crucial role in the quality of the wine, such as temperature, radiation, humidity, and rainfall. This research is focused on two of these factors: temperature and irradiation. The objective of this paper is to be able to recognize these factors, so as to ensure a proper decision criterion when selecting the best location for new vineyard plantations. To achieve this objective, a mesoscale model MM5 is used, and its performance is assessed and compared using different parameters, from the grid resolution to the physical parameterization of the model. Finally, the study evaluates the impact of the different parameterizations and options for the simulation of meteorological variables particularly relevant when choosing new vineyard sites (rainfall frequency, temperature, and sun exposure).
Highlights
La Rioja is the region that gives name to the most prestigious wines of Spain because of the wide diversity of soils and climates it has, which have allowed a great variety of wines with distinctive characteristics
The Rioja Qualified Denomination of Origin (QDO) is located northwest of the depression of the Ebro River, bordering north with the Sierra Cantabria and south with the Sierra de la Demanda, spreading through the autonomous community of La Rioja and several municipalities of the Basque Country and Navarre, with a total of 63.593 hectares of vineyards currently protected by the QDO with which one of the most prestigious wines in the world is produced [1]
A mesoscale model has been presented for the location of ideal sites for new vineyard plantations within the Rioja Qualified Denomination of Origin (Spain), in order to improve the final quality of the wine, as the vine alone cannot guarantee a good grape production, much less quality wine
Summary
It is necessary to consider the interaction of factors that influence the proper ripening of the fruit, which determine both the amount and quality of the vintage [2,3,4,5,6,7,8,9,10]. These factors are comprised in the following groups:
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