| Subject | English | German |
| environ. | baseline monitoring Monitoring of long-term changes in atmospheric compositions of particular significance to the weather and the climate | Grundüberwachung |
| environ. | baseline monitoring | Grundüberwachung |
| nat.res. | baseline station for monitoring significant constituents of the atmosphere | Basisstation zur Überwachung wichtiger Bestandteile der Atmosphäre (background pollution) |