Space metamorphosis

Page 64

Space Metamorphosis

WEATHER

Copenhagen has a humid continental climate with warm summers and no dry season. The area within 40 km of Copenhagen Airopr Weather Station, is covered oceans and seas (47%), croplands (41%), built-up areas (10%), and grasslands (3%). Over the entire year, the most common forms of precipitation are moderate rain, moderate snow, and light rain. During the warm season (June to September), there is a 55% chance of precipitation. During the cold season (November to March), there is a 69% chance of precipitation. Even though the average rainfall days are quite constant with around 15 days per months, the volume of precipitation is much higher starting from July till January with a maximum of 70mm (fig 49). Despite the high chance of precipitation, the chance of snowfall is quite small. The snowfall season spans from November to April with its peak in January, occurring in 37% of the days with a median depth of 8.8 cm. The relative humidity typically ranges from 53% to 97% over the course of the year. The air is driest around May (below 63%) and it is most humid around December (exceeding 93%). [18] Over the course of the year, typical wind speeds vary from 2 m/s to 9 m/s, rarely exceeding 13 m/s. The highest average wind speed of 6 m/s occurs around January, at which time the average daily maximum wind speed is 8 m/s. The lowest average wind speed of 4 m/s occurs around August, at which time the average daily maximum wind speed is 7 m/s. The wind is mainly coming from the south in summer and from the south west in winter (Fig. 50). These parameters will influence the project in terms of protection against the strong winter winds and in terms of optimization of the weaker summer western winds to promote natural ventilation.

Fig 49. (opposite left) Temperature, Sun, Cloud coverage and Rainfall Fig 50. (opposite right) Wind speed and directions

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