City climate - climate analysis night, actual state

Climate analysis of the current state at night (as of 6/21) in Bielefeld. The map was commissioned by the city of Bielefeld by GEO-NET Umweltonculting GmbH, Hanover/Dresden as part of the of the climate adaptation concept of the city of Bielefeld. The following are shown: Cold air supply for green and open spaces. Cold air currents that emanate from green and open spaces and usually flow into a cold air channel (e.g. brook valley) or are directed into the built-up area. Heat island effect in residential areas. Overheated areas within built-up areas in summer. Mean surface current (m/s). Nocturnal flow of cold air in the air layers near the ground. Area of ​​exposure to cold air within the building. Settlement area that has a favorable bioclimate at night due to the inflowing cold air. Areas that form a particularly large amount of cold air. Air exchange. Small-scale air currents between cooler and warmer surfaces, e.g. B. between green areas and built-up areas.