Modelling the Arctic Stable Boundary Layer and its Coupling to the Surface

摘要: The impact of coupling the atmosphere to surface energy balance is examined for stable boundary layer, as an extension first GABLS (GEWEX Atmospheric Boundary-Layer Study) one-dimensional model intercomparison. This major importance boundary-layer structure and its development because enables a realistic physical description interdependence temperature sensible heat flux. In present case, incorporation budget results in stronger cooling (surface decoupling), more less deep layer. proper representation this problematic feature large-scale numerical weather prediction climate models. To account upward flux from ice beneath, we solve diffusion equation underlying alternative. that find clear vertical resolution on development: coarse than fine resolution. Therefore, development, discretization medium needs special attention modelling studies nighttime As second alternative, bulk conductance layer with stagnant air near added. appears depend heavily result re-emphasizes fact interaction studies. Furthermore, perform sensitivity atmospheric resolution, length-scale formulation radiation divergence weak windy conditions.