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Exposure

Designation in soil science and geography for the position of a vineyard slope in relation to the compass direction of the midday solar radiation (direction of incidence of the sun's rays). It is given in relation to the north direction in degrees (often just with, for example, "south exposed" or similar):

  • 0° = north slope - no sun, often also referred to as "shady side".
  • 90° = eastern slope - lots of morning sun
  • 180° = south-facing slope - often also called "sunny side
  • 270° = west-facing slope - a lot of evening sun; in Central Europe exposed to great weather influence

Exposition - Graphik von der Einstrahlung

In viticulture, the best slope exposure in dry, warmth-favoured areas is an orientation from the southeast to the east. In climatic border areas with heat deficits but sufficient precipitation, south to southwest exposures are optimal. A slope with an appropriate angle of inclination is advantageous. A good exposure with sufficient sunlight duration is an eminently important factor for optimal photosynthesis. Solar radiation and the temperatures associated with it are important criteria for winegrowing suitability. See also under climate.

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