Fig. 2. (A) Advective and conductive diurnal temperature wave amplitudes as a function of depth propagating through coarse-grained stream channel sediments. The radiant thermal amplitude at the surface is 1°C. The solid black line describes conductive transport during no-flow conditions. The no dampening case considers zero reduction of the diurnal thermal amplitude during the presence of streamflow. The 50% dampening case considers a 50% reduction during the presence of streamflow. The 50% dampening/50% fluid flux reduction considers a 50% diurnal thermal amplitude reduction and a reduction in the fluid flux from the previous two cases by 50%. (B) Difference between the advective and conductive diurnal temperature wave amplitudes as a function of depth. Intersections between the solid diurnal temperature wave amplitude segments and the dashed transition line represent depths corresponding to equivalent advective and diurnal temperature wave amplitudes during flow and no-flow conditions respectively.