Article The Planet Simulator: Green planet and desert world
An application of the Planet Simulator is presented to estimate the maximum effect of vegetation on the Earth’s climate. Four sets of sensitivity experiments are performed: (1) All vegetation related land surface parameters are changed simultaneously. (2) Only one effect of vegetation on climate is...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Text |
| Language: | English |
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.392.9773 http://www.mi.uni-hamburg.de/fileadmin/files/forschung/theomet/planet_simulator/downloads/plasim_mz_2.pdf |
| Summary: | An application of the Planet Simulator is presented to estimate the maximum effect of vegetation on the Earth’s climate. Four sets of sensitivity experiments are performed: (1) All vegetation related land surface parameters are changed simultaneously. (2) Only one effect of vegetation on climate is considered: albedo, surface roughness and soil hydrology. To identify the nature of vegetation-climate interaction, linear superposition and non-linear interaction of these three effects are compared. (3) The first experimental set-up is repeated but with mixed-layer ocean and thermodynamic sea-ice. (4) The effect of enhanced greenhouse gas concentrations on extreme vegetation climates is analysed repeating the preceding experimental setup with twice the CO2 concentration (compared to set-3). Zusammenfassung Der Planet Simulator wird hier benutzt, um den maximalen Effekt der Vegetation auf das Erdklima abzuschätzen. Es werden vier Gruppen von Sensitivitätsexperimenten durchgeführt: (1) Alle vegetationsbezogenen Landoberflächenparameter werden simultan geändert. (2) Nur jeweils einer der Vegetationseffekte Albedo, Rauhigkeit und Bodenhydrologie wird geändert. Um die Art der Vegetation-Klima Wechselwirkung zu ermitteln werden die lineare Superposition und die nichtlinearen Wechselwirkungen der drei Effekte miteinander verglichen. (3) Die Experimente der ersten Gruppe werden nach Hinzufügen von Mixed-Layer-Ocean und thermodynamischem Eismodell wiederholt. (4) Die Experimente der Gruppe 3 werden mit |
|---|