**HAPEX SAHEL Information System**

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**Comment:**- This Table contains surface flux data by Institute of hydrology.Eddy correlation system.Super site Millet site.

**Principal investigator:**- C.R. LLOYD

**The fields of the table are:**: The name of the grid where the data was taken.**GRID_ID**: The number of the station in the grid cell.**GRID_ORDER**: This column contains the day at which the measurement was made (YYDDD).**OBS_DATE**: This column contains the time of logging (in Hour GMT).**OBS_TIME**: This column contains the site code.**SITECODE**: This column contains the mean hourly temperature (in deg C).**MEAN_HOUR_TEMP**: This column contains the standard deviation of mean temperature (in deg C).**SIGT**: This column contains the mean hourly background absolute humidity (in g/m**3).**MEAN_HOUR_HUM**: This column contains the standard deviation of fluctuating humidity ( in g/m**3).**SIGH**: This column contains the mean hourly vertical wind speed (in m/s).**MEAN_VERT_WIND_SP**: This column contains the standard deviation of vertical wind speed(in m/s).**SIGVW**: This column contains the mean hourly horizontal windspeed (in m/s).**MEAN_HOR_WIND_SP**: This column contains the standard deviation of horizontal windspeed (in m/s).**SIGHW**: This column contains the mean hourly friction velocity (in m/s).**USTAR**: This column contains the mean hourly sensible heat (in W/m**2).**MEAN_SENS_HEAT**: This column contains the mean hourly latent heat (in W/m**2).**MEAN_LAT_HEAT**: This column contains the z/L where z=instrument height and L=mean hourly Monin-Obukhov length.**ZL**: This column contains the certification level for the data : T)est,C)hecked by PI, U)nchecked by PI.**CERT_LEVEL**: This column contains the revision date for the data in the format DD-MMM-YY.**REV_DATE**

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