SGP/MPL/C1 - Metadata errors

The latitude, longitude and altitude of the Micropulse Lidar
(MPL) were incorrectly entered into the ARM database.  The 
correct location of the SGP.C1 MPL is:
   Lat: 36.606N
   Lon: 97.485W
   Alt:    316m

• lon(lon)
• Dummy altitude for Zeb(alt)
• lat(lat)

SGP/MPL - Missing data due to blown detector

Sometime early 11/11 the detector on the
MPL-004 blew out.  The Detector was replaced by Albert Mendoza.
The instrument was operational on Jan. 23, 1999.

Link this to P981119.2 that reported the blown detector and the
corrective action taken

• base time(base_time)
• Preliminary cloud base height(preliminary_cbh)
• Time offset of tweaks from base_time(time_offset)
• Maximum altitude retrieved from multichannel scalar card.(max_altitude)
• Detector Temperature(detector_temp)
• Repetition rate, or Trigger Frequency of the laser(trigger_freq)
• lat(lat)
• range(range)
• Number of laser shots recorded(shots_summed)
• value represents date of last configuration change as yyyymmdd(property)
• Background Signal(background_signal)
• Aerosol backscatter coefficient at 355 nm(backscatter)
• Amount of time the actual laser pulse lags behind the sync trigger(laser_sync_offset)
• Voltage level which operates the thermistor(voltage_10)
• Array of heights for the range gates(height)
• Time in nanoseconds for each range bin of multichannel scalar card.(range_bin_time)
• Number of laser pulses summed during measurement interval(shots_sum)
• Amount of time the scalar lags behind the sync trigger(scalar_sync_offset)
• Laser Temperature(laser_temp)
• Angle of inclination with respect to horizontal(transceiver_altitude_angle)
• Distance from leading edge of first range bin to the center of each bin .(range_bins)
• effective range offset due to poor sync between laser firing and A/D trigger.(range_offset)
• Repetition Rate, or Trigger Frequency of the laser(pulse_rep)
• Angle of orientation with respect to true geographic north(transceiver_azimuth_angle)
• Laser output energy per pulse(energy_monitor)
• Instrument Temperature(instrument_temp)
• Amount of time laser pulse lags behind the scalar trigger(laser_scalar_sync_offset)
• Dummy altitude for Zeb(alt)
• Width of range-bins calculated from range_bin_time(range_bin_width)
• time(time)
• required to correct raw counts for detector deadtime prior to all other
  corrections.(deadtime_correction)
• Voltage level which operates the energy monitor(voltage_15)
• Filter Temperature(filter_temp)
• Sum of raw backscatter counts per bin prior to ANY corrections.(total_counts)
• Voltage level which operates the A/D card and the detector(voltage_05)
• lon(lon)

• (Development raw data stream - documentation not supported)

• Time offset of tweaks from base_time(time_offset)
• lon(lon)
• lat(lat)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Preliminary cloud base height above ground level(cbh)

• Background Signal(background_signal)
• Instrument Temperature(instrument_temp)
• Time offset of tweaks from base_time(time_offset)
• Cloud base height, measured by MPL(cloud_base_height)
• Laser output energy per pulse(energy_monitor)
• lat(lat)
• Cloud mask(cloud_mask_2)
• Array of heights for the range gates(height)
• Number of laser shots recorded(shots_summed)
• Repetition Rate, or Trigger Frequency of the laser(pulse_rep)
• The update time of the historical baseline used for the cloud boundary
  determination of this sample(baseline_update_time)
• cloud top height(cloud_top_height)
• Aerosol backscatter coefficient at 355 nm(backscatter)
• Flag indicating whether the beam was extinguished at indicated cloud top(cloud_top_attenuation_flag)
• Detector Temperature(detector_temp)
• Laser Temperature(laser_temp)
• Cloud mask(cloud_mask_1)
• lon(lon)
• base time(base_time)
• Relative random error in backscatter profiles(random_error)
• Dummy altitude for Zeb(alt)