| Expert Type | Expert Type |
| Applied Sciences / Technologies / Engineering |
| Topic Atmosphere | Climate |
| Air Pollution |
| Topic Hydrosphere | Fresh Water Systems / Rivers / Lakes |
| Precipitation / Runoff |
| Water Pollution / Waste Water |
| Topic Cryosphere | Glaciers |
| Topic Pedosphere | Pedosphere |
| Soil Pollution and Restauration |
| Topic Integrated Systems | Integrated Systems and Ecology |
| Hydrogeochemical Cycle |
| Topic Ecosystems | Ecosystems |
| Terrestrial Ecosystems |
| Topic Economy/ResourceUse | Economy / Resource Use |
| Energy |
| Topic Technology | Technology |
| Technical Environmental Protection |
| Topic Health | Health |
| Pollution Effects / Water Quality |
| Topic Sustainability | Sustainability |
| Ecological Sustainability |
| Spatial Zones | Spatial Zones |
| Mountain / Highland |
| Spatial Scale | Spatial Scale |
| Continental |
| National / Cultural |
| Time Frame | Time Frame |
| Recent / Today |
| Future |
| Statistical Focus | Statistical Focus |
| Mean Change / Trends |
| Time Scale | Time Scale |
| Decadal / Centennial |
| Methods | Method |
| Data Collection |
| Data Collection - Measurement |
| Data Analysis |
| Modeling |
| Integrated Assessment |