- Physical Geography 94
- Geographical Information Systems/Cartography 77
- Remote Sensing/Photogrammetry 57
- Nature Conservation 53
- Geography, general 45
- Sustainable Development 45
- Plant Ecology 32
- Atmospheric Sciences 11
- Earth System Sciences 11
- Geomorphology 11
- Landscape/Regional and Urban Planning 11
- Water, general 11
- Computer Appl. in Social and Behavioral Sciences 6
- Natural Hazards 6
- Urban Geography / Urbanism (inc. megacities, cities, towns) 6
- Human Geography 5
- Visualization 5
- Web Development 5
- Urban Studies/Sociology 4
- Earth Sciences, general 3