NIM/MET/M1/S1 - Reprocess: ORG Data has very small rainrate values

The ORG data is collected via analog signal and not digital.  Therefore, we
   continuously collect data even when no rain is occurring.  We also capture
   small events such as leaves, large bugs, dust, etc blowing through the
   measurement path.  Because this discrete event occurs quickly the value is
   usually captured for 1 or 2 seconds.  This value is then averaged to the
   minute producing rainrate on the order of .009 mm/hr or less.  These values
   are not indicative of rain and should be removed from the record or summing
   over long periods can bias the climate record.  We are reprocessing the data
   to remove these small values and are adjusting the collection program to
   remove them before ingest.

• Rain, surface, 1-min avg(precip_rate_mean)
• precip_rate_sd
• precip_rate_max
• precip_rate_min

NIM/MET/S1 - Wind Speed data contain offset due to induced voltage

The marine model of the RM Young wind sensor needs twisted pair shielded cable.  The 
manufacturer did not originally supply the pigtail with twisted pair shielded cable.  Use of 
twisted pair shielded cable for the rest of the cable run to the logger was also not 
specified.  This caused an induced voltage in the wind speed line from the wind direction 
excitation.  The induced voltage varied from sensor to sensor and probably changed anytime 
the cable was replaced or parts of the wind sensor were repaired or replaced. The induced 
voltage has been seen to vary from 0.15 m/s to as much as 1.08 m/s.

• wind_spd_arith_min
• Vector-averaged Wind Speed(wind_spd_vec_avg)
• Wind speed, lower, 1-min avg(wind_spd_arith_avg)
• wind_spd_arith_max
• wind_spd_arith_sd

GRW/MET/M1 - Tower lowered during installation

Data was collected during set up and installation.  Any data collected is suspect due to 
the tower being lowered and calibration checks occurring.  The data should be viewed 
critically before being used.

• Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
• vapor_pressure_mean
• pwd_err_code
• rh_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• pwd_pw_code_inst
• Barometric Pressure(atmos_pressure)
• wdir_vec_std
• temp_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Mean Air Temperature or Hardware Error(temp_mean)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• vapor_pressure_std
• ORG precipitation rate mean(org_precip_rate_mean)
• pwd_precip_rate_mean_1min
• Wind speed vector mean(wspd_vec_mean)
• pwd_cumul_rain
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• pwd_pw_code_15min
• pwd_pw_code_1hr

GRW/MET/M1 - Temperature/RH aspirator failure

The aspirator fan on the solar shield failed causing incorrect readings on the temp, RH 
and calculated variables.

• Mean Air Temperature or Hardware Error(temp_mean)
• vapor_pressure_std
• vapor_pressure_mean
• rh_std
• temp_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)

SBS/MET/M1 - Atmospheric pressure spikes

A nearby AC unit was causing +/-.05 (approx.) changes in pressure values, most frequently 
during the daylight hours but occasionally over night.  Corrective action was taken to 
shield the sensor 1/28.

• Barometric Pressure(atmos_pressure)

SBS/MET/M1 - Site setup

The instruments were being setup and installed during this period.  Some data may be 
questionable and minimal quality reporting will be done.

• precip_rate_min
• precip_rate_max
• pwd_err_code
• temp_sd
• time_offset
• relh_sd
• pwd_pw_code_15_min
• Barometric Pressure(atmos_pressure)
• pwd_cumul_snow
• Average 1 min visibility(pwd_avg_vis_1_min)
• Vector-averaged Wind Direction(wind_dir_vec_avg)
• pwd_pw_code_1_hr
• wind_spd_arith_min
• pwd_id
• wind_dir_sd
• time
• wind_spd_arith_max
• pwd_avg_H2O_int_1_min
• pwd_pw_code_inst
• alt
• lat
• logger_voltage
• Mean Air Temperature or Hardware Error(temp_mean)
• Vapor pressure mean(vappress_mean)
• Rain, surface, 1-min avg(precip_rate_mean)
• base_time
• Average 10 min visibility(pwd_avg_vis_10_min)
• Relative humidity mean(relh_mean)
• org_carrier_mean
• lon
• vappress_sd
• Vector-averaged Wind Speed(wind_spd_vec_avg)
• Wind speed, lower, 1-min avg(wind_spd_arith_avg)
• pwd_cumul_water
• precip_rate_sd
• logger_temp
• wind_spd_arith_sd

SGP/MET/E13 - PWD data incorrect/missing

Data collection problems during the time period specified resulted in incorrect or missing 
PWD data.

• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• pwd_cumul_rain
• pwd_cumul_snow
• pwd_precip_rate_mean_1min
• pwd_pw_code_15min
• pwd_pw_code_1hr
• pwd_pw_code_inst
• pwd_err_code

SGP/MET/E13 - Missing PWD data

PWD data were missing due to an accidental reset on the instrument.

• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• pwd_cumul_rain
• pwd_cumul_snow
• pwd_precip_rate_mean_1min
• pwd_pw_code_15min
• pwd_pw_code_1hr
• pwd_pw_code_inst
• pwd_err_code

SBS/MET/M1 - Incorrect atmospheric pressure

The atmospheric pressure readings showed a ~.3 - 1 mb oscillatory behavior. The sensor 
tube was found to be obstructed. It was fixed and  proper function resumed.

• Barometric Pressure(atmos_pressure)