Noise in select Raman Lidar channels

Narrow field of view elastic channel data was corrupted 970415 to 970529 
with noise added by a malfunctioning multichannel scalar card; data could
recovered with considerable work.
Wide field of view elastic channel data was corrupted 970529 to 970815
with noise added by the above MCS card after it was changed 970529 to 
this channel.

None - malfunctioning card replaced 970815.

• lon(lon)
• Number of photons counted in the low water vapor channel(water_counts_low)
• Number of photons counted in the high nitrogen channel(nitrogen_counts_high)
• Count rate in the high depolarization channel(depolarization_counts_high)
• Wavelength of each of the 6 filters measured by the MFR radiometers(filter)
• Number of photons counted in the high elastic (aerosol) channel(elastic_counts_high)
• Count rate in the high water vapor channel(water_counts_high)
• -180.0 - +180.0(alt)
• Time offset from base_time(time_offset)
• Laser pulse energy(pulse_energy)
• base time in epoch(base_time)
• North Latitude(lat)
• Nominal number of seconds of data acquired(acquisition_time)
• Number of photons counted in the low elastic (aerosol) channel(elastic_counts_low)
• Number of lidar pulses summed(shots_summed)
• Number of photons counted in the low nitrogen channel(nitrogen_counts_low)