MAO/SEBS/M1 - Soil Moisture 1 Low Values

Soil moisture 1 values were lower than those of the other two soil moisture probes.

Sensible and latent heat fluxes were not affected.

• soil_heat_flow_1
• soil_moisture_1
• energy_storage_change_1
• corr_soil_heat_flow_1
• surface_soil_heat_flux_1
• soil_heat_capacity_1

MAO/SEBS/M1 - Net Radiometer Measurements not reported

Radiometer values were missing.

Therefore surface energy balance measurements were also incorrect.

• net radiation
• Surface longwave irradiance(up_long)
• Surface energy balance(surface_energy_balance)
• albedo(albedo)
• Downwelling shortwave hemispheric irradiance, pyranometer(down_short_hemisp)
• Sky longwave irradiance(down_long)
• Upwelling shortwave hemispheric irradiance, pyranometer(up_short_hemisp)

MAO/SEBS/M1 - Reprocessing Notice (RID 1110)

See below for details of reprocessing that was completed on 20141028.  Original DQR 
category: 4 (Red, Incorrect).

-----------------------------------------------------------

Soil heat flow 3 plate was reversed in orientation in the soil.

This measurement should be reprocessed to change the sign of the measurement.

• qc_corr_soil_heat_flow_3
• soil_heat_flow_3
• qc_surface_soil_heat_flux_avg
• Average soil heat flow at the surface(surface_soil_heat_flux_avg)
• Surface energy balance(surface_energy_balance)
• qc_surface_soil_heat_flux_3
• qc_soil_heat_flow_3
• corr_soil_heat_flow_3
• surface_soil_heat_flux_3

MAO/SEBS/M1 - Precipitation Effects on Upwelling Long Wave Radiation

Upwelling long wave radiation is affected by surface cooling from precipitation 
occurrence.

• Surface longwave irradiance(up_long)

MAO/CPC/CCN/CLAP/PSAP/NEPHELOMETER/M1 - power outage

Data are missing due to the power outage.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• North latitude(lat)
• ambient_temp

MAO/CPC/CLAP/CCN/PSAP/NEPHELOMETER/M1 - power outage

Data are missing due to the power outage.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• North latitude(lat)
• ambient_temp

MAO/SEBS/M1 - Radiometer measurements incorrect

The radiometer measurements were incorrect while the ECOR/SEBS tripod was tipped over.

• net radiation
• Surface longwave irradiance(up_long)
• Surface energy balance(surface_energy_balance)
• albedo(albedo)
• Downwelling shortwave hemispheric irradiance, pyranometer(down_short_hemisp)
• Sky longwave irradiance(down_long)
• Upwelling shortwave hemispheric irradiance, pyranometer(up_short_hemisp)

MAO/CPC/M1 - Low CPC signal

The Condensation Particle Counter (CPC) was clogged and needed cleaning. After cleaning 
signal was still low with a leak in the CPC sample line.

• AOS number concentration of CN (concentration)(concentration)

MAO/SEBS/M1 - Surface Energy Balance Incorrect

Surface longwave radiation incorrect because of a corroded connector.
This caused the net radiation and surface energy balance to also be incorrect.

• net radiation
• Surface longwave irradiance(up_long)
• Surface energy balance(surface_energy_balance)

MAO/AOS/S1/M1 - Instrument maintenance

Instrument maintenance and cleaning inlets affecting data.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/CPC/M1 - Instrument failure

CPC was removed after leak and low signal was discovered after an instrument cleaning. The 
OPC detector was returned to mentor for evaluation. The mentor found two leaks in the 
instrument when there for system maintenance.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• North latitude(lat)
• ambient_temp

MAO/AOS/M1 - System down for maintenance

Instruments were periodically offline or sampling room air during the cleaning, repair and 
calibrations.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/SEBS/M1 - Surface Energy Balance Incorrect

Upwelling longwave radiation incorrect, causing the calculated surface energy balance to 
be incorrect.

• net radiation
• Surface longwave irradiance(up_long)
• Surface energy balance(surface_energy_balance)

MAO/AOS/CCN/CLAP/CPC/NEPHELOMETER/PSAP/M1 - Power outage. No pump flow

Raw power which drives the pumps and heaters went out. There was no flow through the 
instruments.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/AOS/CCN/CLAP/CPC/NEPHELOMETER/PSAP/M1 - Computer software issue

The computer software stopped collecting data and was rebooted.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• North latitude(lat)
• ambient_temp

MAO/CPC/M1 -Internal leak in instrument

The internal leak in the CPC depleted the signal as the flow through instrument was about 
30% of the nominal flow needed to operate the instrument.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/CPC/M1 - Instrument removed for repair

Leak in CPC. Instrument removed from service until it can be fixed.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• North latitude(lat)
• ambient_temp

MAO/AOS/CCN/CLAP/NEPHELOMETER/PSAP/M1 - Dilution compressor flow cycling on and off

The dilution flow was cycling on and off. This led to unstable concentrations. Dilution 
flow is about 30% of total flow so concentration uncertainty is on the order of 30%.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/AOS/M1 - Weak solder connection in dilution flow meter comport cable

The dilution flow meter reading was erratic. Plots of the data suggest that the flow 
varied by about 5%. Problem was corrected when wire was re-soldered.

• AOS number concentration of CN (concentration)(concentration)

MAO/CPC/M1 - Instrument site maintenance. Not sampling ambient air

Data sampling inside air.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/SEBS/M1 - Net Radiometer Measurements Incorrect

Corrosion in the net radiometer connector caused some measurements from the net radiometer 
to be incorrect.

• net radiation
• Surface energy balance(surface_energy_balance)
• albedo(albedo)
• Downwelling shortwave hemispheric irradiance, pyranometer(down_short_hemisp)

MAO/CCN/CPC/NEPHELOMETER/PSAP/M1 - Pump failure

Pump failed, no flow through instruments.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/SEBS/M1 - Surface Energy Balance Incorrect

Soil Heat Flow 1 had a partially sliced cable, causing soil heat flow 1, average soil heat 
flow, and surface energy balance to be incorrect.

• soil_heat_flow_1
• Surface energy balance(surface_energy_balance)
• corr_soil_heat_flow_1
• surface_soil_heat_flux_1

MAO/CPC/M1 - Reprocessing Notice (RID 1366)

DATA REPROCESSED.  Data was reprocessed on 20160216 to fix issues noted in the original 
DQR copied below.

-------------------------------------------------------------------------
End to end reprocessing to generate new a1 datastreams is needed so that when the 
harmonization software is released to production, we will be ready with the a1 datastreams that 
are input to the subsequent processing software.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• North latitude(lat)
• ambient_temp

MAO/SEBS/M1 - Incorrect values because a connector was corroded

Surface Energy Balance, Solar Shortwave Downwelling, Albedo, and Net Radiation were 
incorrect because a connector was corroded.

• net radiation
• Surface energy balance(surface_energy_balance)
• albedo(albedo)
• Downwelling shortwave hemispheric irradiance, pyranometer(down_short_hemisp)

MAO/AOS/M1/S1 - Forest Fire

Smoke from forest burning can be seen on the TSI images rising and then subsequently 
moving over the site during this period.  Many of the AOS instruments observed a sharp spike 
in data values.

October 4-8 multiple fires in the area resulted in hazy conditions during this entire 
period.

Most notable in the following instruments and variables

ACSM - Total Organics
AETH - Black Carbon Concentrations at all wavelengths
CCN100 - Spike in number concentrations occurred a few hours after the smoke plume
CLAP3W - Absorption Coefficient
CPC - Similar to the CCN100, spike in particle concentration occurred a few hours later
CPCF - Particle Concentration
CPCU - Particle Concentration
NEPHELOMETERS - Scattering/Backscattering Coeff
PSAP3W - Absorption Coefficient
SMPS - Concentration and Size Distribution
UHSAS - Size Distribution

• AOS number concentration of CN (concentration)(concentration)

MAO/CPC/M1 - Pump failure

There was a pump failure and data declined to 0.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• AOS number concentration of CN (concentration)(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/SEBS/M1 - Surface Energy Balance Incorrect.

Surface Energy Balance was incorrect while soil heat flow 1 was not working.

• soil_heat_flow_1
• Surface energy balance(surface_energy_balance)
• corr_soil_heat_flow_1
• surface_soil_heat_flux_1

MAO/AOS/CCN/CLAP/CPC/NEPHELOMETER/PSAP/M1 - Reprocess: Dilution flow calibration update

Dilution flow calibrations are incorrect. Dilution flow corrections need to be applied to 
b1 data.

Flow: 11.1 lpm 2015-02-19 04:19:12 to 2015-03-02 21:21:36 UTC
Flow: 9.75 lpm 2015-05-15 00:00:00 to 2015-07-01 23:59:59 UTC
Flow: 3.7178 slpm 2015-07-01 00:00:00 to 2015-11-08 23:59:59 UTC
Flow: 9.324 slpm 2015-11-08 00:00:00 UTC to 2015-12-01 23:59:59 UTC

• qc_concentration
• AOS number concentration of CN (concentration)(concentration)
• East longitude(lon)
• cpc_flow
• time_offset
• time
• time_bounds
• dilution_correction_factor
• f2_flags
• Altitude above mean sea level(alt)
• North latitude(lat)
• base_time