Dynamic Global Vegetation Model

Preliminary Results

NB: WORK IN PROGRESS. Some links may not be active. This is unpublished material intended to illustrate our work.

Global Simulation with CLM-DGVM

Shown here are results from an ongoing global T31 (~3.75 by 3.75) test simulation. The model is driven with NCEP data from 1979 to 1998. The model cycles through the same 20-year data for the entire length of the simulation. At initialization, bare ground is assumed globally. Vegetation appears at the end of year 1 and continues to evolve throughout the run.

End of year 200
Vegetation cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production and Fire
Leaf Area Index and Phenology
Biomass Pools

Global Simulation with LSM-DGVM

Shown here are results from a 200-year global 3 by 3 test simulation. The model is operated as described above for the CLM-DGVM.

End of year 20
Vegetation cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon

End of year 40
Vegetation Cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon

End of year 60
Vegetation Cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production and Fire
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon

End of year 80
Vegetation Cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production and Fire
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon

End of year 100
Vegetation Cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production and Fire
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon

End of year 120
Vegetation Cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production and Fire
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon

End of year 140
Vegetation Cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production and Fire
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon

End of year 160
Vegetation Cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production and Fire
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon

End of year 180
Vegetation Cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production and Fire
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon

End of year 200
Vegetation Cover as percent of grid cell
Net Ecosystem Production and Net Biome Production
Net Primary Production and Fire
Leaf Area Index and Phenology
Biomass Pools
Soil Carbon
Global Carbon Flux Trends
Global Trend of Biomass Pools
Global Trend of Albedo

Point Simulations

Simulations similar to the global one discussed above, but for individual points.

Tropical Rainforest (5.5S 15.5E)
Four panel figure of output

Tropical Savanna (13.5N 7.5W)
Four panel figure of output
Water, Fire, and Vegetation

Temperate Forest (45.5N 0.5E)
Four panel figure of output

Boreal Forest (60.5N 105.5W)
Four panel figure of output

Tundra (65.5N 105.5W)
Four panel figure of output