MAO/SMPS/S1 - Calibration of SMPS

During the times listed, the SMPS was undergoing procedures for calibration of both the 
electrostatic classifier and the condensation particle counter.  Any data that may have 
been collected during this time is not representative of the conditions present in the 
atmosphere at the site.

Don't use any existing data from this time period.

• -180.0 - +180.0(alt)
• time_in_seconds_since_volume_start(time)
• North Latitude(lat)
• Sample temperature(sample_temperature)
• base time in epoch(base_time)
• lon(lon)
• Time offset from base_time(time_offset)
• Sample relative humidity(sample_rh)

• Time offset from base_time(time_offset)
• lon(lon)
• Sample pressure(sample_pressure)
• Mean diameter of size distribution(mean)
• CPC sample flow rate(CPC_sample_flow)
• Aerosol flow rate(aerosol_flow)
• Lower size limit(lower_size)
• Sample temperature(sample_temperature)
• North Latitude(lat)
• time_in_seconds_since_volume_start(time)
• Mean diameter of size distribution using a geometric average(geometric_mean)
• Total scan concentration over all bins(total_concentration)
• High voltage reading(high_voltage)
• Mode index(mode)
• Standard deviation of mean diameter of size distribution using geometric average(geometric_mean_std)
• CPC inlet flow rate(CPC_inlet_flow)
• Flag indicating aeri retrieval status(status_flag)
• Median diameter of size distribution(median)
• -180.0 - +180.0(alt)
• Gas viscosity(gas_viscosity)
• Mean free path(mean_free_path)
• Low voltage reading(low_voltage)
• 50 percent cut-point diameter of the impactor(d50)
• base time in epoch(base_time)
• Number size distribution (dN/dlogDp)(number_size_distribution)
• Bins for diameter midpoint measurements(diameter_midpoint)
• Sheath flow(sheath_flow)