ADDITIONAL WEATHER INFORMATION Average Air Temperature: 13.6 degrees C 286.7 K Lid Height: 639.1 meters Surface Roughness Height: 0.010 meters Height of Wind Measurements: 10.0 meters Average Wind Speed: 0.497 m/s Vertical Temperature Gradients: STABILITY A -0.016 K/m STABILITY B -0.007 K/m STABILITY C -0.015 K/m STABILITY D 0.006 K/m STABILITY E -0.004 K/m STABILITY F 0.015 K/m STABILITY G 0.043 K/m