Medium-scale agricultural site mapping Brandenburg

From today's perspective, the MMK is a concept ground map with some terrain checks. After the mapping in the years from 1974 to 1981, the digital data for the MMK with the technical possibilities at that time were collected. GIS systems did not yet exist. It was a technical procedure for driving down the area contours with relatively few support points with the aim of determining the area size of the respective mapping unit. The target of the MMK was 1 : 100 000.
The contours have been digitized by the work cards (topographic maps 1 : 25 000, edition before 1945, with the border lines of the catting units). These formed the basis for the printed maps on a scale of 1: 100,000, but their topography was distorted for reasons of secrecy. Before 1990, these land provisions were used to impose conditions and plan cultivation for agricultural production cooperatives and state goods.
After 1990, this data was made GIS-capable by the Federal Institute for Geosciences and Natural Resources. Only changes were made to the rough contouring of the individual surfaces if surfaces overlapped, gusseted surfaces were present or surfaces were mirrored due to the technical survey method. Recognized content errors have been fixed. After that, these data were divided between the then five new federal states. Until about 2001, this data was distributed in Brandenburg. After that, the land overview map of the country solved 1 : 300 000 (BÜK300) with comparable area resolution and comprehensive representation of this map set.