Ambient Equilibration
Cabin temperature: 25C
Sensor type: RS80
Ambient pressure: 314mb
Ambient temperature: -36C
Ambient RH: 50%
Temperature equilibration accuracy: 0.1C
RH equilibration accuracy: 5.0%
Temperature equilibration at time: 24.0s, RS80 T sensor time constants: 6.4
RH equilibration at time: 49.0s, RS80 RH sensor time constants: 4.1
Pressure: same equilibration time used as for temperature
Wind equilibration: 10.0s
Description
D20180131_210904_P.2 174245317 18013118301 WXWXE AR03, 18013118301 WXWXE AR03 AFRC C-130J, ---
Data type: AVAPS SOUNDING DATA, Channel 2
Sonde model: RS904
Thermo sensor: RS904
Fast Fall Test
Number of points with excessive fall rate: 266
Percentage of points with excessive fall rate: 100
Sounding diagnosed as a fast fall: Yes
File Processing
Data type: AVAPS SOUNDING DATA, Channel 2
Sonde model: RS904
Thermo sensor: RS904
Processing Steps
QC processing completed (in less than 1.0s)
Levels created (in less than 1.0s)
WMO message coded (in less than 1.0s)
QC Data Recovery Statistics
927 raw data records
53 ( 5.7%) raw data records had PTU checksum errors
330 (35.6%) raw data records had GPS checksum errors
28 ( 3.0%) raw data records had both PTU and GPS checksum errors
pres : input file reported 415 ( 44.8%) values, QC retained 269 ( 64.8%), overall rate: 29.0%
tdry : input file reported 415 ( 44.8%) values, QC retained 316 ( 76.1%), overall rate: 34.1%
RH : input file reported 409 ( 44.1%) values, QC retained 272 ( 66.5%), overall rate: 29.3%
winds: input file reported 711 ( 76.7%) values, QC retained 320 ( 45.0%), overall rate: 34.5%
QC Height Integration
Upward integration starts @ 0.0m
Downward integration starts @ 9145.8m
QC Processing Errors
This appears to be a fast fall sounding.
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: 47
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 1
QC for Relative Humidity
Points which failed the limit check: 0
Points which failed the buddy check: 2
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: 1
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 0
QC for VV Pressure
Points which failed the limit check: 0
Points which failed the buddy check: 47
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 1
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: 30
Outlier check disabled
Q/C filter check disabled
Points which failed the vertical velocity check: 207
Surface Observation
Splash time (time of the last usable frame): 231.25s
Extrapolated surface time: 231.79s
Fall distance from last frame: 11.8m
Extrapolated surface pressure: 619.8mb
Extrapolated surface temperature: -5.7C
Extrapolated surface rh: 76.6%
Surface Wind Determination
Surface wind coded for an adjusted altitude of 12.0m
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