SGP/CSPHOT/C1 - Missing data

Data are missing and unrecoverable.

• aot_412
• TripletVar_555
• aot_490
• Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
• aot_551
• TripletVar_1640
• aot_667
• aot_555
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
• TripletVar_551
• TripletVar_412
• East longitude(lon)
• TripletVar_490
• TripletVar_870
• timeObs
• WaterError
• TripletVar_667
• Altitude above mean sea level(alt)
• last_processing_date
• time_offset
• TripletVar_1020
• Column precip water vapor(pwv)
• Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
• Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
• aot_532
• aot_531
• TripletVar_675
• North latitude(lat)
• TripletVar_670
• Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
• TripletVar_531
• TripletVar_532
• Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
• zenith
• TripletVar_443
• Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
• TripletVar_440
• Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
• TripletVar_500
• aot_675
• time
• Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
• TripletVar_340
• TripletVar_380
• Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
• Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
• base_time
• Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
• aot_443
• Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

SGP/CSPHOT/C1 - AOT 1640 channel data missing

AOT 1640 channel data missing.  The instrument deployed at SGP from September 2008 to July 
2010 was not upgraded with this additional channel.

• TripletVar_1640
• Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)

SGP/CSPHOT/C1 - Robot errors/Obstruction in tubes

Data are questionable due to problems with the robot and possible obstruction in 
collimator tubes.

• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
• Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
• TripletVar_1640
• TripletVar_670
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
• Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
• Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
• zenith
• Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
• TripletVar_440
• Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
• TripletVar_870
• TripletVar_500
• WaterError
• Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
• TripletVar_340
• TripletVar_380
• TripletVar_1020
• Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
• Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
• Column precip water vapor(pwv)
• Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
• Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
• Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
• Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

SGP/CSPHOT/C1 - Solar tracking and Connector panel problem

Robot errors and issues with the connector panels resulted in an inability to find the Sun 
and therefore only cloud mode zenith radiance data were taken during this time.

• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
• Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
• TripletVar_440
• Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
• TripletVar_500
• TripletVar_870
• WaterError
• Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
• Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
• TripletVar_1640
• TripletVar_340
• TripletVar_380
• TripletVar_670
• Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
• TripletVar_1020
• Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
• Column precip water vapor(pwv)
• Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
• Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
• Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
• Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)
• Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
• Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)

SGP/CSPHOT/C1 - Obstruction

There was a possible obstruction or instrument malfunction, causing errors in the data and 
showing diurnal dependence in the AOT data.

Use the quality assured level 2.0 AOT data from AERONET when available 
(sgpcsphotaotfiltqaC1.a1). Level 2.0 data and post-calibration level 1.5 data should become available in 
2014. Users can also use MFRSR data if available.

• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
• Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
• TripletVar_1640
• TripletVar_670
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
• Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
• Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
• zenith
• Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
• TripletVar_440
• Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
• TripletVar_870
• TripletVar_500
• WaterError
• Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
• TripletVar_340
• TripletVar_380
• TripletVar_1020
• Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
• Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
• Column precip water vapor(pwv)
• Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
• Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
• Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
• Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)