In preparation for the upcoming AGU conference in New Orleans, the Cryospheric Science Group of the Interdisciplinary Centre on Climate Change (IC3) is pleased to welcome Markus Todt, a PhD student at Northumbria University, to present his research at our seminar this month. His presentation is entitled:
“Simulation of Longwave Enhancement beneath Montane and Boreal Forests in CLM4.5”
Abstract:
A substantial fraction of snow-covered area in the northern hemisphere is covered by forests, in which radiation is dominating the snow energy balance. Forest coverage impacts net surface radiation by shading the ground and enhancing longwave radiation. Longwave enhancement is a potential mechanism that contributes to uncertainty in snowmelt modelling, however, its impact on snowmelt in global land models has not been analyzed yet. This study assesses the simulation of sub-canopy longwave radiation and longwave enhancement by CLM4.5, the land component of the NCAR Community Earth System Model. Using sub-canopy radiation measurements from several sites across the boreal and montane spectrum we assess simulation of sub-canopy longwave radiation by CLM4.5 and the dependence of simulation errors on meteorological forcing, vegetation type, and vegetation density.
Immediately following Markus’ talk, we will view poster presentations of other AGU attendees.