The preparation of the Map of Urban Climate Zones required no measurements to be specially performed. The following maps could be used and integrated as bases:
- Mean Annual Air Temperature 1991-‘92 at 2 m above ground (SenStadtUm 1993e)
- Long-Term Mean Air Temperatures 1961 – 1990 (Map 04.02, SenStadtUm 2001)
- Equivalent Temperatures under Low-exchange Weather Conditions (Map 04.04.3, SenStadtUm 1993f)
- Near-Ground Wind Speeds (Map 04.03, SenStadtUm 1994b)
Moreover, the following updated maps were used to include the structural developments since 1992:
- Long-Term Temperature Distribution 1961 – 1990 (Map 04.02, SenStadt 2001a) and
- Air Temperatures at Low-Exchange Weather Situations (Map 04.04.1, SenStadt 2001b).