Fig. 1: Dry and wet set-up.
From: Sensitivity of Arctic CH4 emissions to landscape wetness diminished by atmospheric feedbacks
Qualitative comparison between the simulated hydrological cycle in the dry and wet JSBACH set-ups, following the degradation of the near-surface permafrost. Shown are the hydrological fluxes from the land surface and the soil, namely transpiration (green), bare-soil evaporation (yellow), evaporation from wetlands (dark blue), infiltration (light blue), and surface runoff and drainage (red). The size of the resistance symbols indicates whether the parameter settings in a set-up facilitate a certain process (indicated by a small resistance symbol) or impede it (indicated by a large resistance symbol). At the same saturation of the soil (or, for infiltration and surface runoff, the same precipitation), a high resistance results in small fluxes (indicated by thin arrows), while a low resistance leads to a large flux (indicated by thick arrows). Finally, the size of the cloud and the thickness of the grey arrows indicate the atmospheric response to the evapotranspiration flux, while the size of the dark blue area in the belowground column indicates the amount of water stored in the soil.
