climatic situation
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Although surrounded by lower mountains, with 135 m above sea level, Witzenhausen is nott a typical central mountain location. The wind speeds are lower, the temperatures higher than on the adjacent plateaus of the Eichsfeld, Werra-Leine mountains, Meissner foreland and the Kaufunger forest that lay protectively around the S-shaped running Werra valley. On the southeast slope opposite the experimental site there was formerly a cultivated wine (however for its astringent effect known as the "three man wine", while one man tasting it , the other two have to hold him thightly ). Today the mild climate in Witzenhausen is favorable for the many cherry orchards. The climatic water balance is normally positive with a significant donation leachate during the winter months.
Average annual temperature:
1930 - 1960: 8.9 ° C
1971 - 1994: 8.9 ° C
(Schirmer 1969) (Stein et al. 1995)
Annual total precipitation:
1930 - 1960: 698 mm
1971 - 1994: 659.5 mm
(Schirmer 1969) (Stein et al. 1995)
Average sum of the potential evapotranspiration over grass (ETP according HAUDE):
1973-1987: 428.3 mm (calculated according to Stein et al (1995).)