ENA/IMPACTOR/C1 - Impactor not installed

Impactor was not installed and inlet passed all sizes.  This is equivalent to the impactor 
on the 10 um setting.

• Impactor particle size cut(impactor_state)

ENA/AOSMET/C1 - Data not available

Data not available

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• time
• Rain intensity(rain_intensity)
• Altitude above mean sea level(alt)
• Wind direction, relative to true North(WindDirection)
• heater_volts
• Ambient air temperature(T_Ambient)
• Rain amount(rain_amount)
• time_offset
• East longitude(lon)
• North latitude(lat)
• Wind speed(WindSpeed)
• base_time
• ref_volts
• supply_volts
• heater_temp

ENA/AOSMET/C1 - Data missing

Instrument was not functioning resulting in missing data.

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• time
• Rain intensity(rain_intensity)
• Altitude above mean sea level(alt)
• Wind direction, relative to true North(WindDirection)
• heater_volts
• Ambient air temperature(T_Ambient)
• Rain amount(rain_amount)
• time_offset
• East longitude(lon)
• North latitude(lat)
• Wind speed(WindSpeed)
• base_time
• ref_volts
• supply_volts
• heater_temp

ENA/AOSMET/C1 - Failed met system

Data during this period is incorrect due to ongoing replacement of failed met system. The 
system was not fully implemented.

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• Rain intensity(rain_intensity)
• Wind speed(WindSpeed)
• Wind direction, relative to true North(WindDirection)
• ref_volts
• Ambient air temperature(T_Ambient)
• heater_volts
• supply_volts
• heater_temp
• Rain amount(rain_amount)

ENA/AOSMET/C1 - Rain amount data missing

A setting on the WXT520 Weather Transmitter was incorrect and the Rain Amount was not read 
until it was fixed.

• Rain amount(rain_amount)

ENA/NEPHELOMETER/C1 - Impactor not switching

AOS tech was working in the AOS and accidentally unplugged the impactor power supply. This 
left the impactor in the 10 micron state.

• Impactor particle size cut(impactor_state)

ENA/AOS/C1 - AOS Instrument Repair, Calibration and Modification: Mentor Site Visit

There was visit of 7 AOS instrument mentors to the ENA AOS during this period of 
instrument repair, calibration and modification. Instruments were occasionally off, or with no 
sample flow, or receiving calibration samples, etc. There was no productive sampling of 
ambient air during this period other than for testing. No data should be used for this period 
as ambient samples.

Note: Two datastream are missing. The CAPS Extinction Monitor and the Greenhouse gas 
instrument.

• Ozone concentration(ozone)
• Ozone pressure(ozone_pressure)
• ozone_bench_temp

• Impactor particle size cut(impactor_state)

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• Rain intensity(rain_intensity)
• Wind direction, relative to true North(WindDirection)
• heater_volts
• Ambient air temperature(T_Ambient)
• Rain amount(rain_amount)
• Wind speed(WindSpeed)
• ref_volts
• supply_volts
• heater_temp

ENA/AOSMET/C1 - Instrument

Instrument experienced periodic dropouts.  These were apparent on all channels.  The RH 
sensor went off scale.  During these periods there are no valid points for Air Temperature, 
RH or BP. RH should be considered uncalibrated until this date.  Changing the sensor at 
the end of this period fixed the problem.

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• Rain intensity(rain_intensity)
• Wind speed(WindSpeed)
• Wind direction, relative to true North(WindDirection)
• Ambient air temperature(T_Ambient)
• Rain amount(rain_amount)

ENA/AOSMET/C1 - Collection software turned off

Instrument vi was turned off for unknown causes perhaps due to debugging of problem 
described in D150513.3.

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• time
• Rain intensity(rain_intensity)
• Altitude above mean sea level(alt)
• Wind direction, relative to true North(WindDirection)
• heater_volts
• Ambient air temperature(T_Ambient)
• Rain amount(rain_amount)
• time_offset
• East longitude(lon)
• North latitude(lat)
• Wind speed(WindSpeed)
• base_time
• ref_volts
• supply_volts
• heater_temp

ENA/AOS/C1 - Reprocess: reprocessing from raw data in preparation for not-yet-released b1 
level

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 proccessing software.

• East longitude(lon)
• North latitude(lat)
• Impactor particle size cut(impactor_state)
• base_time
• time_offset
• time
• Altitude above mean sea level(alt)

ENA/AOS/C1 - Impactor size switch not connected

Impactor installed and plumbed, HOWEVER, the impactor's 'size read' switch NOT connected.

• Impactor particle size cut(impactor_state)

ENA/OZONE/C1 - Reprocess: Under reporting ozone concentration

Switching valve developed an internal leak that gradually worsened. Reported instrument 
values are under-representations of the ambient ozone concentration during this period. The 
under reporting worsens from 85% to 77% over the course of this DQR. No corrections have 
been applied at this point.

• Ozone concentration(ozone)

ENA/C1 - Reprocess: Slightly incorrect location fields

Some of the instruments are being processed with the previous "GRW-Azores" lat/lon/alt 
instead of the new "ENA-Azores" lat/lon/alt. The differences are minor, but will be 
corrected. The respective GRW and ENA lat, lon, and alt values are as follows:
 
GRW  lat = 39.0911 ;
ENA lat = 39.0916 ;
GRW  lon = -28.0297 ;
ENA  lon = -28.0257 ;
GRW  alt = 26 ;
ENA  alt = 30.48 ;

• Altitude above mean sea level(alt)
• East longitude(lon)
• North latitude(lat)

• East longitude(lon)
• North latitude(lat)
• Altitude above mean sea level(alt)