Table 1 Quality characteristics for maps according to ISO (2013) and their application on cEsT data

(1) Positional accuracy

Absolute or external accuracy

Standard deviation (± m)

Determining distances between selected points of boundary lines of cEsT and geo-objects from ATKIS-DLM that represent broad-leaved forests, mixed forests and coniferous forests (= relative accuracy) under consideration of their known positional accuracies and error propagation (= absolute accuracy)

(2) Thematic accuracy

Classification correctness

Percentage of objects, where cEsT occurs as the predominant ecosystem type

Comparing cEst with field data (FFH habitats and biotopes in Hesse)