| Expert Type | Expert Type |
| Scientific / Fundamental Research |
| Applied Sciences / Technologies / Engineering |
| Research Interface / Management |
| Topic Atmosphere | Atmosphere |
| Meteorology |
| Climate |
| Global Warming |
| Radiation |
| Air Pollution |
| Topic Ecosystems | Ecosystems |
| Terrestrial Ecosystems |
| Topic Economy/ResourceUse | Economy / Resource Use |
| Agriculture, Forestry and Fishery |
| Energy |
| Land Cover / Land Use / Landscape |
| Topic Sustainability | Sustainability |
| Ecological Sustainability |
| Spatial Zones | Spatial Zones |
| Mountain / Highland |
| Lowland |
| Urban |
| Rural |
| Spatial Scale | Spatial Scale |
| Global / Hemispheric |
| Continental |
| National / Cultural |
| Local / Community |
| Time Frame | Time Frame |
| Past |
| Recent / Today |
| Future |
| Statistical Focus | Statistical Focus |
| Extreme Events |
| Mean Change / Trends |
| Variability |
| Time Scale | Time Scale |
| Seasonal / Annual |
| Decadal / Centennial |
| Millenial |
| Methods | Method |
| Data Collection |
| Data Collection - Measurement |
| Data Collection - Interviews, Questionnaires |
| Data Collection - Documents, Archives |
| Data Analysis |
| Literature Study |
| Modeling |
| Policy Analysis and Formation |
| Applied Research / Technology |
| Integrated Assessment |
| Program Coordination / Management |
| GeoForum General-Technology | Technologies, Engineering, Physics |
| GeoForum Geo-Technology | Geoinformatics |
| GeoForum Environmental-Technology | Environmental Technologies |
| Spatial Planning |