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sensitivity, arctic amplification, and sensitivity of active layer deepening to warming. This version of JULES calculates the soil temperature every 10 cm within the soil profile. A predecessor of the JULES land surface scheme the Met Office Surface Exchange Scheme (MOSES)/Top-Down Representation of Interactive Foliage and Flora Including Dynamics (TRIFFID) is included within HadGEM2, which overestimates the permafrost extent ( Table 1 ) and underestimates the difference between the air and soil
sensitivity, arctic amplification, and sensitivity of active layer deepening to warming. This version of JULES calculates the soil temperature every 10 cm within the soil profile. A predecessor of the JULES land surface scheme the Met Office Surface Exchange Scheme (MOSES)/Top-Down Representation of Interactive Foliage and Flora Including Dynamics (TRIFFID) is included within HadGEM2, which overestimates the permafrost extent ( Table 1 ) and underestimates the difference between the air and soil
initialization of the vegetation during the spinup phase: in fact the GFDL land model only allows coniferous trees to grow in cold climates (i.e., deciduous trees and grass do not grow in these cold regions). As a result, coniferous trees are established in areas where there should be tundra or cold deciduous trees ( Anav et al. 2013 ). Additionally, since all CMIP5 models were spun up for many thousands of years, in the case of the GFDL models the coniferous vegetation eventually builds up high LAI. It is
initialization of the vegetation during the spinup phase: in fact the GFDL land model only allows coniferous trees to grow in cold climates (i.e., deciduous trees and grass do not grow in these cold regions). As a result, coniferous trees are established in areas where there should be tundra or cold deciduous trees ( Anav et al. 2013 ). Additionally, since all CMIP5 models were spun up for many thousands of years, in the case of the GFDL models the coniferous vegetation eventually builds up high LAI. It is
