DQRID : D100719.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/15/2010215906/17/20102201Suspect
more
Subject:
NSA/CEIL/C1 - Gaps in data
DataStreams:nsaceilC1.b1
Description:
When the CT25K ceilometer was replaced with a new CL31, checksum errors began occurring at 
regular 6-min intervals and several things were done to diagnose the problem, including 
changing the serial cable and trying different computer types. It was finally corrected 
by replacing the computer with one in which hyperthreading was disabled by default in the 
BIOS.
Suggestions: 
Measurements:nsaceilC1.b1:
  • window_contamination
  • alt_highest_signal
  • detection_status
  • receiver_sensitivity
  • laser_temperature
  • second_cbh
  • backscatter
  • base_time
  • vertical_visibility
  • third_cbh
  • measurement_parameters
  • first_cbh
  • tilt_angle
  • time_offset
  • background_light
  • status_flag
  • laser_pulse_energy
  • status_string
  • range
  • sum_backscatter
more

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