CSAT3+KH20 raw 20Hz data stored directly as measured by the instrument, in plain text .dat files. The CSAT3+KH20 was installed at 2.15m facing the prevailing wind direction. Data columns correspond to: date and time (TIMESTAMP) u, y and z components of wind vector in m/s (Ux, Uy, Uz), sonic temperature in degrees Celsius (Ts), analogue output of humidity measured in V (KH20_raw). The humidity can be determined using the following constants: V0 = 3529 mV, x = 1.2 cm, kw = −0.2 and ko = −0.0450.