Ambient Equilibration
Cabin temperature: 25C
Sensor type: RS80
Ambient pressure: 298mb
Ambient temperature: -46C
Ambient RH: 50%
Temperature equilibration accuracy: 0.1C
RH equilibration accuracy: 5.0%
Temperature equilibration at time: 25.4s, RS80 T sensor time constants: 6.6
RH equilibration at time: 53.3s, RS80 RH sensor time constants: 4.4
Pressure: same equilibration time used as for temperature
Wind equilibration: 10.0s
Description
D20180127_005540_P.4 174245107 18012618307 WXWXC AR01, 18012618307 WXWXC AR01 AFRC C-130J, ---
Data type: AVAPS SOUNDING DATA, Channel 4
Sonde model: RS904
Thermo sensor: RS904
Fast Fall Test
Number of points with excessive fall rate: 7
Percentage of points with excessive fall rate: 0
Sounding diagnosed as a fast fall: No
File Processing
Data type: AVAPS SOUNDING DATA, Channel 4
Sonde model: RS904
Thermo sensor: RS904
Processing Steps
QC processing completed (in 1.0s)
Levels created (in less than 1.0s)
WMO message coded (in less than 1.0s)
QC Data Recovery Statistics
2953 raw data records
31 ( 1.0%) raw data records had PTU checksum errors
229 ( 7.8%) raw data records had GPS checksum errors
13 ( 0.4%) raw data records had both PTU and GPS checksum errors
pres : input file reported 1442 ( 48.8%) values, QC retained 958 ( 66.4%), overall rate: 32.4%
tdry : input file reported 1441 ( 48.8%) values, QC retained 965 ( 67.0%), overall rate: 32.7%
RH : input file reported 1427 ( 48.3%) values, QC retained 907 ( 63.6%), overall rate: 30.7%
winds: input file reported 2796 ( 94.7%) values, QC retained 2683 ( 96.0%), overall rate: 90.9%
QC Height Integration
Upward integration starts @ 0.0m
Downward integration starts @ 9215.6m
QC for GPS Altitude
Points which failed the limit check: 0
Points which failed the buddy check: 0
Points which failed the Q/C filter check: 0
QC for GPS Latitude
Points which failed the limit check: 0
Points which failed the buddy check: 0
Points which failed the Q/C filter check: 0
QC for GPS Longitude
Points which failed the limit check: 0
Points which failed the buddy check: 0
Points which failed the Q/C filter check: 0
QC for Pressure
Points which failed the limit check: 0
Points which failed the buddy check: 378
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 26
QC for Relative Humidity
Points which failed the limit check: 0
Points which failed the buddy check: 398
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 0
Points which failed the lower limit check: 0
Points which failed the upper limit check: 0
Points which failed the lower limit check: 0
Points which failed the upper limit check: 0
QC for Temperature
Points which failed the limit check: 0
Points which failed the buddy check: 392
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 5
QC for VV Pressure
Points which failed the limit check: 0
Points which failed the buddy check: 378
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 26
QC for Winds
Points which failed the wind speed limit check: 0
Points which failed the wind direction limit check: 0
Points which failed the number of satellites check: 0
Wind error check not applied (sonde is not xRD41)
Points which failed the buddy check: 0
Outlier check disabled
Q/C filter check disabled
Points which failed the vertical velocity check: 1
Surface Observation
Splash time (time of the last usable frame): 737.75s
Extrapolated surface time: 738.29s
Fall distance from last frame: 5.2m
Extrapolated surface pressure: 1006.6mb
Extrapolated surface temperature: 11.8C
Extrapolated surface rh: 95.3%
Surface Wind Determination
Surface wind coded for an adjusted altitude of 10.0m
PTU/wind offset is 0.00s (PTU observations lead wind observations by 0.00s)
TD Dry Bias Correction
Not applied
Correction was present in the source data
Number of 0.1% RH values removed: 0