Horizontal cuts in the chromosphere at heights of (from left to right) z = 1.2, 2.2, and 4.2 Mm above z = 0 Mm. The panels (top to bottom) include the temperature, vertical magnetic field B_z, and two components of the vertical Poynting flux, P_z, Bz = −B_z(v_xB_x + v_yB_y) and P_z, vz = B_h. The temperature panels are limited to compare the structures at different layers in the chromosphere. In panel c) approximately 8 pixels in a million are above 1 MK. The field strength and Poynting flux panels are limited to highlight the chromospheric structures. Animation available online; the image represents t = 0 of the animation.