The growing season and heat unit accumulation data in Table 2 suggest that the climate in Parma is marginal for cultivation of Merlot and Chardonnay and not suitable for production of Cabernet Sauvignon or Syrah, yet vineyard heat unit accumulation and number of frost-free days suggest a suitable vineyard mesoclimate for production of these red wine cultivars.
However, late maturing, less cold hardy cultivars like Cabernet Sauvignon and Merlot currently comprise an estimated 31% of producing acreage in the WSRP, suggesting that vineyard mesoclimate is critical for production success.
High air moisture coupled with thermophilic mesoclimate
enhance evapotranspiration, which probably reaches potential values (Carbiener, 1970).
The high altitude results in intense daylight, with cool nights impacted by the mesoclimate
influenced by the Andes, allowing grapes to retain acidity and reach physiological maturity with complex layers of flavor.
More detailed terrain characterization, for determination of insolation (exposure to sunlight) and for mesoclimate modelling, is accomplished through analysis of elevation contours using GIS software (ArcGIS, Spatial Analyst extension, ESRI, Canada).
Use of a geographic information system to study mesoclimate variation in Okanagan Valley vineyards: American Journal of Enology and Viticulture, v.
Each is farmed and managed separately according to soil type and mesoclimate
Because of the unprecedented radical changes taking place throughout the world, we need to focus on mesoclimates
Chile's diverse mesoclimates
and unique terroir have yielded wines that are drinking more beautifully now than ever," said Ricardo Letelier, Managing Director of Wines of Chile.
This area encompasses the Yakima and Walla Walla Valleys, as well as Horse Heaven Hills and the Wahluke Slope, all distinctive mesoclimates
within the Columbia Valley.